#
-# Makefile for the linux ext3-filesystem routines.
+# Makefile for the linux ext4-filesystem routines.
#
-obj-$(CONFIG_EXT3_FS) += ext3.o
+obj-$(CONFIG_EXT4DEV_FS) += ext4dev.o
-ext3-y := balloc.o bitmap.o dir.o file.o fsync.o ialloc.o inode.o \
+ext4dev-y := balloc.o bitmap.o dir.o file.o fsync.o ialloc.o inode.o \
ioctl.o namei.o super.o symlink.o hash.o resize.o
-ext3-$(CONFIG_EXT3_FS_XATTR) += xattr.o xattr_user.o xattr_trusted.o
-ext3-$(CONFIG_EXT3_FS_POSIX_ACL) += acl.o
-ext3-$(CONFIG_EXT3_FS_SECURITY) += xattr_security.o
+ext4dev-$(CONFIG_EXT4DEV_FS_XATTR) += xattr.o xattr_user.o xattr_trusted.o
+ext4dev-$(CONFIG_EXT4DEV_FS_POSIX_ACL) += acl.o
+ext4dev-$(CONFIG_EXT4DEV_FS_SECURITY) += xattr_security.o
/*
- * linux/fs/ext3/acl.c
+ * linux/fs/ext4/acl.c
*
* Copyright (C) 2001-2003 Andreas Gruenbacher, <agruen@suse.de>
*/
#include <linux/slab.h>
#include <linux/capability.h>
#include <linux/fs.h>
-#include <linux/ext3_jbd.h>
-#include <linux/ext3_fs.h>
+#include <linux/ext4_jbd.h>
+#include <linux/ext4_fs.h>
#include "xattr.h"
#include "acl.h"
* Convert from filesystem to in-memory representation.
*/
static struct posix_acl *
-ext3_acl_from_disk(const void *value, size_t size)
+ext4_acl_from_disk(const void *value, size_t size)
{
const char *end = (char *)value + size;
int n, count;
if (!value)
return NULL;
- if (size < sizeof(ext3_acl_header))
+ if (size < sizeof(ext4_acl_header))
return ERR_PTR(-EINVAL);
- if (((ext3_acl_header *)value)->a_version !=
- cpu_to_le32(EXT3_ACL_VERSION))
+ if (((ext4_acl_header *)value)->a_version !=
+ cpu_to_le32(EXT4_ACL_VERSION))
return ERR_PTR(-EINVAL);
- value = (char *)value + sizeof(ext3_acl_header);
- count = ext3_acl_count(size);
+ value = (char *)value + sizeof(ext4_acl_header);
+ count = ext4_acl_count(size);
if (count < 0)
return ERR_PTR(-EINVAL);
if (count == 0)
if (!acl)
return ERR_PTR(-ENOMEM);
for (n=0; n < count; n++) {
- ext3_acl_entry *entry =
- (ext3_acl_entry *)value;
- if ((char *)value + sizeof(ext3_acl_entry_short) > end)
+ ext4_acl_entry *entry =
+ (ext4_acl_entry *)value;
+ if ((char *)value + sizeof(ext4_acl_entry_short) > end)
goto fail;
acl->a_entries[n].e_tag = le16_to_cpu(entry->e_tag);
acl->a_entries[n].e_perm = le16_to_cpu(entry->e_perm);
case ACL_MASK:
case ACL_OTHER:
value = (char *)value +
- sizeof(ext3_acl_entry_short);
+ sizeof(ext4_acl_entry_short);
acl->a_entries[n].e_id = ACL_UNDEFINED_ID;
break;
case ACL_USER:
case ACL_GROUP:
- value = (char *)value + sizeof(ext3_acl_entry);
+ value = (char *)value + sizeof(ext4_acl_entry);
if ((char *)value > end)
goto fail;
acl->a_entries[n].e_id =
* Convert from in-memory to filesystem representation.
*/
static void *
-ext3_acl_to_disk(const struct posix_acl *acl, size_t *size)
+ext4_acl_to_disk(const struct posix_acl *acl, size_t *size)
{
- ext3_acl_header *ext_acl;
+ ext4_acl_header *ext_acl;
char *e;
size_t n;
- *size = ext3_acl_size(acl->a_count);
- ext_acl = kmalloc(sizeof(ext3_acl_header) + acl->a_count *
- sizeof(ext3_acl_entry), GFP_KERNEL);
+ *size = ext4_acl_size(acl->a_count);
+ ext_acl = kmalloc(sizeof(ext4_acl_header) + acl->a_count *
+ sizeof(ext4_acl_entry), GFP_KERNEL);
if (!ext_acl)
return ERR_PTR(-ENOMEM);
- ext_acl->a_version = cpu_to_le32(EXT3_ACL_VERSION);
- e = (char *)ext_acl + sizeof(ext3_acl_header);
+ ext_acl->a_version = cpu_to_le32(EXT4_ACL_VERSION);
+ e = (char *)ext_acl + sizeof(ext4_acl_header);
for (n=0; n < acl->a_count; n++) {
- ext3_acl_entry *entry = (ext3_acl_entry *)e;
+ ext4_acl_entry *entry = (ext4_acl_entry *)e;
entry->e_tag = cpu_to_le16(acl->a_entries[n].e_tag);
entry->e_perm = cpu_to_le16(acl->a_entries[n].e_perm);
switch(acl->a_entries[n].e_tag) {
case ACL_GROUP:
entry->e_id =
cpu_to_le32(acl->a_entries[n].e_id);
- e += sizeof(ext3_acl_entry);
+ e += sizeof(ext4_acl_entry);
break;
case ACL_USER_OBJ:
case ACL_GROUP_OBJ:
case ACL_MASK:
case ACL_OTHER:
- e += sizeof(ext3_acl_entry_short);
+ e += sizeof(ext4_acl_entry_short);
break;
default:
}
static inline struct posix_acl *
-ext3_iget_acl(struct inode *inode, struct posix_acl **i_acl)
+ext4_iget_acl(struct inode *inode, struct posix_acl **i_acl)
{
- struct posix_acl *acl = EXT3_ACL_NOT_CACHED;
+ struct posix_acl *acl = EXT4_ACL_NOT_CACHED;
spin_lock(&inode->i_lock);
- if (*i_acl != EXT3_ACL_NOT_CACHED)
+ if (*i_acl != EXT4_ACL_NOT_CACHED)
acl = posix_acl_dup(*i_acl);
spin_unlock(&inode->i_lock);
}
static inline void
-ext3_iset_acl(struct inode *inode, struct posix_acl **i_acl,
+ext4_iset_acl(struct inode *inode, struct posix_acl **i_acl,
struct posix_acl *acl)
{
spin_lock(&inode->i_lock);
- if (*i_acl != EXT3_ACL_NOT_CACHED)
+ if (*i_acl != EXT4_ACL_NOT_CACHED)
posix_acl_release(*i_acl);
*i_acl = posix_acl_dup(acl);
spin_unlock(&inode->i_lock);
* inode->i_mutex: don't care
*/
static struct posix_acl *
-ext3_get_acl(struct inode *inode, int type)
+ext4_get_acl(struct inode *inode, int type)
{
- struct ext3_inode_info *ei = EXT3_I(inode);
+ struct ext4_inode_info *ei = EXT4_I(inode);
int name_index;
char *value = NULL;
struct posix_acl *acl;
switch(type) {
case ACL_TYPE_ACCESS:
- acl = ext3_iget_acl(inode, &ei->i_acl);
- if (acl != EXT3_ACL_NOT_CACHED)
+ acl = ext4_iget_acl(inode, &ei->i_acl);
+ if (acl != EXT4_ACL_NOT_CACHED)
return acl;
- name_index = EXT3_XATTR_INDEX_POSIX_ACL_ACCESS;
+ name_index = EXT4_XATTR_INDEX_POSIX_ACL_ACCESS;
break;
case ACL_TYPE_DEFAULT:
- acl = ext3_iget_acl(inode, &ei->i_default_acl);
- if (acl != EXT3_ACL_NOT_CACHED)
+ acl = ext4_iget_acl(inode, &ei->i_default_acl);
+ if (acl != EXT4_ACL_NOT_CACHED)
return acl;
- name_index = EXT3_XATTR_INDEX_POSIX_ACL_DEFAULT;
+ name_index = EXT4_XATTR_INDEX_POSIX_ACL_DEFAULT;
break;
default:
return ERR_PTR(-EINVAL);
}
- retval = ext3_xattr_get(inode, name_index, "", NULL, 0);
+ retval = ext4_xattr_get(inode, name_index, "", NULL, 0);
if (retval > 0) {
value = kmalloc(retval, GFP_KERNEL);
if (!value)
return ERR_PTR(-ENOMEM);
- retval = ext3_xattr_get(inode, name_index, "", value, retval);
+ retval = ext4_xattr_get(inode, name_index, "", value, retval);
}
if (retval > 0)
- acl = ext3_acl_from_disk(value, retval);
+ acl = ext4_acl_from_disk(value, retval);
else if (retval == -ENODATA || retval == -ENOSYS)
acl = NULL;
else
if (!IS_ERR(acl)) {
switch(type) {
case ACL_TYPE_ACCESS:
- ext3_iset_acl(inode, &ei->i_acl, acl);
+ ext4_iset_acl(inode, &ei->i_acl, acl);
break;
case ACL_TYPE_DEFAULT:
- ext3_iset_acl(inode, &ei->i_default_acl, acl);
+ ext4_iset_acl(inode, &ei->i_default_acl, acl);
break;
}
}
/*
* Set the access or default ACL of an inode.
*
- * inode->i_mutex: down unless called from ext3_new_inode
+ * inode->i_mutex: down unless called from ext4_new_inode
*/
static int
-ext3_set_acl(handle_t *handle, struct inode *inode, int type,
+ext4_set_acl(handle_t *handle, struct inode *inode, int type,
struct posix_acl *acl)
{
- struct ext3_inode_info *ei = EXT3_I(inode);
+ struct ext4_inode_info *ei = EXT4_I(inode);
int name_index;
void *value = NULL;
size_t size = 0;
switch(type) {
case ACL_TYPE_ACCESS:
- name_index = EXT3_XATTR_INDEX_POSIX_ACL_ACCESS;
+ name_index = EXT4_XATTR_INDEX_POSIX_ACL_ACCESS;
if (acl) {
mode_t mode = inode->i_mode;
error = posix_acl_equiv_mode(acl, &mode);
return error;
else {
inode->i_mode = mode;
- ext3_mark_inode_dirty(handle, inode);
+ ext4_mark_inode_dirty(handle, inode);
if (error == 0)
acl = NULL;
}
break;
case ACL_TYPE_DEFAULT:
- name_index = EXT3_XATTR_INDEX_POSIX_ACL_DEFAULT;
+ name_index = EXT4_XATTR_INDEX_POSIX_ACL_DEFAULT;
if (!S_ISDIR(inode->i_mode))
return acl ? -EACCES : 0;
break;
return -EINVAL;
}
if (acl) {
- value = ext3_acl_to_disk(acl, &size);
+ value = ext4_acl_to_disk(acl, &size);
if (IS_ERR(value))
return (int)PTR_ERR(value);
}
- error = ext3_xattr_set_handle(handle, inode, name_index, "",
+ error = ext4_xattr_set_handle(handle, inode, name_index, "",
value, size, 0);
kfree(value);
if (!error) {
switch(type) {
case ACL_TYPE_ACCESS:
- ext3_iset_acl(inode, &ei->i_acl, acl);
+ ext4_iset_acl(inode, &ei->i_acl, acl);
break;
case ACL_TYPE_DEFAULT:
- ext3_iset_acl(inode, &ei->i_default_acl, acl);
+ ext4_iset_acl(inode, &ei->i_default_acl, acl);
break;
}
}
}
static int
-ext3_check_acl(struct inode *inode, int mask)
+ext4_check_acl(struct inode *inode, int mask)
{
- struct posix_acl *acl = ext3_get_acl(inode, ACL_TYPE_ACCESS);
+ struct posix_acl *acl = ext4_get_acl(inode, ACL_TYPE_ACCESS);
if (IS_ERR(acl))
return PTR_ERR(acl);
}
int
-ext3_permission(struct inode *inode, int mask, struct nameidata *nd)
+ext4_permission(struct inode *inode, int mask, struct nameidata *nd)
{
- return generic_permission(inode, mask, ext3_check_acl);
+ return generic_permission(inode, mask, ext4_check_acl);
}
/*
- * Initialize the ACLs of a new inode. Called from ext3_new_inode.
+ * Initialize the ACLs of a new inode. Called from ext4_new_inode.
*
* dir->i_mutex: down
* inode->i_mutex: up (access to inode is still exclusive)
*/
int
-ext3_init_acl(handle_t *handle, struct inode *inode, struct inode *dir)
+ext4_init_acl(handle_t *handle, struct inode *inode, struct inode *dir)
{
struct posix_acl *acl = NULL;
int error = 0;
if (!S_ISLNK(inode->i_mode)) {
if (test_opt(dir->i_sb, POSIX_ACL)) {
- acl = ext3_get_acl(dir, ACL_TYPE_DEFAULT);
+ acl = ext4_get_acl(dir, ACL_TYPE_DEFAULT);
if (IS_ERR(acl))
return PTR_ERR(acl);
}
mode_t mode;
if (S_ISDIR(inode->i_mode)) {
- error = ext3_set_acl(handle, inode,
+ error = ext4_set_acl(handle, inode,
ACL_TYPE_DEFAULT, acl);
if (error)
goto cleanup;
inode->i_mode = mode;
if (error > 0) {
/* This is an extended ACL */
- error = ext3_set_acl(handle, inode,
+ error = ext4_set_acl(handle, inode,
ACL_TYPE_ACCESS, clone);
}
}
* inode->i_mutex: down
*/
int
-ext3_acl_chmod(struct inode *inode)
+ext4_acl_chmod(struct inode *inode)
{
struct posix_acl *acl, *clone;
int error;
return -EOPNOTSUPP;
if (!test_opt(inode->i_sb, POSIX_ACL))
return 0;
- acl = ext3_get_acl(inode, ACL_TYPE_ACCESS);
+ acl = ext4_get_acl(inode, ACL_TYPE_ACCESS);
if (IS_ERR(acl) || !acl)
return PTR_ERR(acl);
clone = posix_acl_clone(acl, GFP_KERNEL);
int retries = 0;
retry:
- handle = ext3_journal_start(inode,
- EXT3_DATA_TRANS_BLOCKS(inode->i_sb));
+ handle = ext4_journal_start(inode,
+ EXT4_DATA_TRANS_BLOCKS(inode->i_sb));
if (IS_ERR(handle)) {
error = PTR_ERR(handle);
- ext3_std_error(inode->i_sb, error);
+ ext4_std_error(inode->i_sb, error);
goto out;
}
- error = ext3_set_acl(handle, inode, ACL_TYPE_ACCESS, clone);
- ext3_journal_stop(handle);
+ error = ext4_set_acl(handle, inode, ACL_TYPE_ACCESS, clone);
+ ext4_journal_stop(handle);
if (error == -ENOSPC &&
- ext3_should_retry_alloc(inode->i_sb, &retries))
+ ext4_should_retry_alloc(inode->i_sb, &retries))
goto retry;
}
out:
* Extended attribute handlers
*/
static size_t
-ext3_xattr_list_acl_access(struct inode *inode, char *list, size_t list_len,
+ext4_xattr_list_acl_access(struct inode *inode, char *list, size_t list_len,
const char *name, size_t name_len)
{
const size_t size = sizeof(POSIX_ACL_XATTR_ACCESS);
}
static size_t
-ext3_xattr_list_acl_default(struct inode *inode, char *list, size_t list_len,
+ext4_xattr_list_acl_default(struct inode *inode, char *list, size_t list_len,
const char *name, size_t name_len)
{
const size_t size = sizeof(POSIX_ACL_XATTR_DEFAULT);
}
static int
-ext3_xattr_get_acl(struct inode *inode, int type, void *buffer, size_t size)
+ext4_xattr_get_acl(struct inode *inode, int type, void *buffer, size_t size)
{
struct posix_acl *acl;
int error;
if (!test_opt(inode->i_sb, POSIX_ACL))
return -EOPNOTSUPP;
- acl = ext3_get_acl(inode, type);
+ acl = ext4_get_acl(inode, type);
if (IS_ERR(acl))
return PTR_ERR(acl);
if (acl == NULL)
}
static int
-ext3_xattr_get_acl_access(struct inode *inode, const char *name,
+ext4_xattr_get_acl_access(struct inode *inode, const char *name,
void *buffer, size_t size)
{
if (strcmp(name, "") != 0)
return -EINVAL;
- return ext3_xattr_get_acl(inode, ACL_TYPE_ACCESS, buffer, size);
+ return ext4_xattr_get_acl(inode, ACL_TYPE_ACCESS, buffer, size);
}
static int
-ext3_xattr_get_acl_default(struct inode *inode, const char *name,
+ext4_xattr_get_acl_default(struct inode *inode, const char *name,
void *buffer, size_t size)
{
if (strcmp(name, "") != 0)
return -EINVAL;
- return ext3_xattr_get_acl(inode, ACL_TYPE_DEFAULT, buffer, size);
+ return ext4_xattr_get_acl(inode, ACL_TYPE_DEFAULT, buffer, size);
}
static int
-ext3_xattr_set_acl(struct inode *inode, int type, const void *value,
+ext4_xattr_set_acl(struct inode *inode, int type, const void *value,
size_t size)
{
handle_t *handle;
acl = NULL;
retry:
- handle = ext3_journal_start(inode, EXT3_DATA_TRANS_BLOCKS(inode->i_sb));
+ handle = ext4_journal_start(inode, EXT4_DATA_TRANS_BLOCKS(inode->i_sb));
if (IS_ERR(handle))
return PTR_ERR(handle);
- error = ext3_set_acl(handle, inode, type, acl);
- ext3_journal_stop(handle);
- if (error == -ENOSPC && ext3_should_retry_alloc(inode->i_sb, &retries))
+ error = ext4_set_acl(handle, inode, type, acl);
+ ext4_journal_stop(handle);
+ if (error == -ENOSPC && ext4_should_retry_alloc(inode->i_sb, &retries))
goto retry;
release_and_out:
}
static int
-ext3_xattr_set_acl_access(struct inode *inode, const char *name,
+ext4_xattr_set_acl_access(struct inode *inode, const char *name,
const void *value, size_t size, int flags)
{
if (strcmp(name, "") != 0)
return -EINVAL;
- return ext3_xattr_set_acl(inode, ACL_TYPE_ACCESS, value, size);
+ return ext4_xattr_set_acl(inode, ACL_TYPE_ACCESS, value, size);
}
static int
-ext3_xattr_set_acl_default(struct inode *inode, const char *name,
+ext4_xattr_set_acl_default(struct inode *inode, const char *name,
const void *value, size_t size, int flags)
{
if (strcmp(name, "") != 0)
return -EINVAL;
- return ext3_xattr_set_acl(inode, ACL_TYPE_DEFAULT, value, size);
+ return ext4_xattr_set_acl(inode, ACL_TYPE_DEFAULT, value, size);
}
-struct xattr_handler ext3_xattr_acl_access_handler = {
+struct xattr_handler ext4_xattr_acl_access_handler = {
.prefix = POSIX_ACL_XATTR_ACCESS,
- .list = ext3_xattr_list_acl_access,
- .get = ext3_xattr_get_acl_access,
- .set = ext3_xattr_set_acl_access,
+ .list = ext4_xattr_list_acl_access,
+ .get = ext4_xattr_get_acl_access,
+ .set = ext4_xattr_set_acl_access,
};
-struct xattr_handler ext3_xattr_acl_default_handler = {
+struct xattr_handler ext4_xattr_acl_default_handler = {
.prefix = POSIX_ACL_XATTR_DEFAULT,
- .list = ext3_xattr_list_acl_default,
- .get = ext3_xattr_get_acl_default,
- .set = ext3_xattr_set_acl_default,
+ .list = ext4_xattr_list_acl_default,
+ .get = ext4_xattr_get_acl_default,
+ .set = ext4_xattr_set_acl_default,
};
/*
- File: fs/ext3/acl.h
+ File: fs/ext4/acl.h
(C) 2001 Andreas Gruenbacher, <a.gruenbacher@computer.org>
*/
#include <linux/posix_acl_xattr.h>
-#define EXT3_ACL_VERSION 0x0001
+#define EXT4_ACL_VERSION 0x0001
typedef struct {
__le16 e_tag;
__le16 e_perm;
__le32 e_id;
-} ext3_acl_entry;
+} ext4_acl_entry;
typedef struct {
__le16 e_tag;
__le16 e_perm;
-} ext3_acl_entry_short;
+} ext4_acl_entry_short;
typedef struct {
__le32 a_version;
-} ext3_acl_header;
+} ext4_acl_header;
-static inline size_t ext3_acl_size(int count)
+static inline size_t ext4_acl_size(int count)
{
if (count <= 4) {
- return sizeof(ext3_acl_header) +
- count * sizeof(ext3_acl_entry_short);
+ return sizeof(ext4_acl_header) +
+ count * sizeof(ext4_acl_entry_short);
} else {
- return sizeof(ext3_acl_header) +
- 4 * sizeof(ext3_acl_entry_short) +
- (count - 4) * sizeof(ext3_acl_entry);
+ return sizeof(ext4_acl_header) +
+ 4 * sizeof(ext4_acl_entry_short) +
+ (count - 4) * sizeof(ext4_acl_entry);
}
}
-static inline int ext3_acl_count(size_t size)
+static inline int ext4_acl_count(size_t size)
{
ssize_t s;
- size -= sizeof(ext3_acl_header);
- s = size - 4 * sizeof(ext3_acl_entry_short);
+ size -= sizeof(ext4_acl_header);
+ s = size - 4 * sizeof(ext4_acl_entry_short);
if (s < 0) {
- if (size % sizeof(ext3_acl_entry_short))
+ if (size % sizeof(ext4_acl_entry_short))
return -1;
- return size / sizeof(ext3_acl_entry_short);
+ return size / sizeof(ext4_acl_entry_short);
} else {
- if (s % sizeof(ext3_acl_entry))
+ if (s % sizeof(ext4_acl_entry))
return -1;
- return s / sizeof(ext3_acl_entry) + 4;
+ return s / sizeof(ext4_acl_entry) + 4;
}
}
-#ifdef CONFIG_EXT3_FS_POSIX_ACL
+#ifdef CONFIG_EXT4DEV_FS_POSIX_ACL
-/* Value for inode->u.ext3_i.i_acl and inode->u.ext3_i.i_default_acl
+/* Value for inode->u.ext4_i.i_acl and inode->u.ext4_i.i_default_acl
if the ACL has not been cached */
-#define EXT3_ACL_NOT_CACHED ((void *)-1)
+#define EXT4_ACL_NOT_CACHED ((void *)-1)
/* acl.c */
-extern int ext3_permission (struct inode *, int, struct nameidata *);
-extern int ext3_acl_chmod (struct inode *);
-extern int ext3_init_acl (handle_t *, struct inode *, struct inode *);
+extern int ext4_permission (struct inode *, int, struct nameidata *);
+extern int ext4_acl_chmod (struct inode *);
+extern int ext4_init_acl (handle_t *, struct inode *, struct inode *);
-#else /* CONFIG_EXT3_FS_POSIX_ACL */
+#else /* CONFIG_EXT4DEV_FS_POSIX_ACL */
#include <linux/sched.h>
-#define ext3_permission NULL
+#define ext4_permission NULL
static inline int
-ext3_acl_chmod(struct inode *inode)
+ext4_acl_chmod(struct inode *inode)
{
return 0;
}
static inline int
-ext3_init_acl(handle_t *handle, struct inode *inode, struct inode *dir)
+ext4_init_acl(handle_t *handle, struct inode *inode, struct inode *dir)
{
return 0;
}
-#endif /* CONFIG_EXT3_FS_POSIX_ACL */
+#endif /* CONFIG_EXT4DEV_FS_POSIX_ACL */
/*
- * linux/fs/ext3/balloc.c
+ * linux/fs/ext4/balloc.c
*
* Copyright (C) 1992, 1993, 1994, 1995
* Remy Card (card@masi.ibp.fr)
#include <linux/capability.h>
#include <linux/fs.h>
#include <linux/jbd.h>
-#include <linux/ext3_fs.h>
-#include <linux/ext3_jbd.h>
+#include <linux/ext4_fs.h>
+#include <linux/ext4_jbd.h>
#include <linux/quotaops.h>
#include <linux/buffer_head.h>
* The file system contains group descriptors which are located after the
* super block. Each descriptor contains the number of the bitmap block and
* the free blocks count in the block. The descriptors are loaded in memory
- * when a file system is mounted (see ext3_read_super).
+ * when a file system is mounted (see ext4_read_super).
*/
#define in_range(b, first, len) ((b) >= (first) && (b) <= (first) + (len) - 1)
/**
- * ext3_get_group_desc() -- load group descriptor from disk
+ * ext4_get_group_desc() -- load group descriptor from disk
* @sb: super block
* @block_group: given block group
* @bh: pointer to the buffer head to store the block
* group descriptor
*/
-struct ext3_group_desc * ext3_get_group_desc(struct super_block * sb,
+struct ext4_group_desc * ext4_get_group_desc(struct super_block * sb,
unsigned int block_group,
struct buffer_head ** bh)
{
unsigned long group_desc;
unsigned long offset;
- struct ext3_group_desc * desc;
- struct ext3_sb_info *sbi = EXT3_SB(sb);
+ struct ext4_group_desc * desc;
+ struct ext4_sb_info *sbi = EXT4_SB(sb);
if (block_group >= sbi->s_groups_count) {
- ext3_error (sb, "ext3_get_group_desc",
+ ext4_error (sb, "ext4_get_group_desc",
"block_group >= groups_count - "
"block_group = %d, groups_count = %lu",
block_group, sbi->s_groups_count);
}
smp_rmb();
- group_desc = block_group >> EXT3_DESC_PER_BLOCK_BITS(sb);
- offset = block_group & (EXT3_DESC_PER_BLOCK(sb) - 1);
+ group_desc = block_group >> EXT4_DESC_PER_BLOCK_BITS(sb);
+ offset = block_group & (EXT4_DESC_PER_BLOCK(sb) - 1);
if (!sbi->s_group_desc[group_desc]) {
- ext3_error (sb, "ext3_get_group_desc",
+ ext4_error (sb, "ext4_get_group_desc",
"Group descriptor not loaded - "
"block_group = %d, group_desc = %lu, desc = %lu",
block_group, group_desc, offset);
return NULL;
}
- desc = (struct ext3_group_desc *) sbi->s_group_desc[group_desc]->b_data;
+ desc = (struct ext4_group_desc *) sbi->s_group_desc[group_desc]->b_data;
if (bh)
*bh = sbi->s_group_desc[group_desc];
return desc + offset;
static struct buffer_head *
read_block_bitmap(struct super_block *sb, unsigned int block_group)
{
- struct ext3_group_desc * desc;
+ struct ext4_group_desc * desc;
struct buffer_head * bh = NULL;
- desc = ext3_get_group_desc (sb, block_group, NULL);
+ desc = ext4_get_group_desc (sb, block_group, NULL);
if (!desc)
goto error_out;
bh = sb_bread(sb, le32_to_cpu(desc->bg_block_bitmap));
if (!bh)
- ext3_error (sb, "read_block_bitmap",
+ ext4_error (sb, "read_block_bitmap",
"Cannot read block bitmap - "
"block_group = %d, block_bitmap = %u",
block_group, le32_to_cpu(desc->bg_block_bitmap));
const char *fn)
{
struct rb_node *n;
- struct ext3_reserve_window_node *rsv, *prev;
+ struct ext4_reserve_window_node *rsv, *prev;
int bad;
restart:
printk("Block Allocation Reservation Windows Map (%s):\n", fn);
while (n) {
- rsv = list_entry(n, struct ext3_reserve_window_node, rsv_node);
+ rsv = list_entry(n, struct ext4_reserve_window_node, rsv_node);
if (verbose)
printk("reservation window 0x%p "
"start: %lu, end: %lu\n",
* otherwise, return 0;
*/
static int
-goal_in_my_reservation(struct ext3_reserve_window *rsv, ext3_grpblk_t grp_goal,
+goal_in_my_reservation(struct ext4_reserve_window *rsv, ext4_grpblk_t grp_goal,
unsigned int group, struct super_block * sb)
{
- ext3_fsblk_t group_first_block, group_last_block;
+ ext4_fsblk_t group_first_block, group_last_block;
- group_first_block = ext3_group_first_block_no(sb, group);
- group_last_block = group_first_block + (EXT3_BLOCKS_PER_GROUP(sb) - 1);
+ group_first_block = ext4_group_first_block_no(sb, group);
+ group_last_block = group_first_block + (EXT4_BLOCKS_PER_GROUP(sb) - 1);
if ((rsv->_rsv_start > group_last_block) ||
(rsv->_rsv_end < group_first_block))
* if the goal is not in any window.
* Returns NULL if there are no windows or if all windows start after the goal.
*/
-static struct ext3_reserve_window_node *
-search_reserve_window(struct rb_root *root, ext3_fsblk_t goal)
+static struct ext4_reserve_window_node *
+search_reserve_window(struct rb_root *root, ext4_fsblk_t goal)
{
struct rb_node *n = root->rb_node;
- struct ext3_reserve_window_node *rsv;
+ struct ext4_reserve_window_node *rsv;
if (!n)
return NULL;
do {
- rsv = rb_entry(n, struct ext3_reserve_window_node, rsv_node);
+ rsv = rb_entry(n, struct ext4_reserve_window_node, rsv_node);
if (goal < rsv->rsv_start)
n = n->rb_left;
*/
if (rsv->rsv_start > goal) {
n = rb_prev(&rsv->rsv_node);
- rsv = rb_entry(n, struct ext3_reserve_window_node, rsv_node);
+ rsv = rb_entry(n, struct ext4_reserve_window_node, rsv_node);
}
return rsv;
}
/**
- * ext3_rsv_window_add() -- Insert a window to the block reservation rb tree.
+ * ext4_rsv_window_add() -- Insert a window to the block reservation rb tree.
* @sb: super block
* @rsv: reservation window to add
*
* Must be called with rsv_lock hold.
*/
-void ext3_rsv_window_add(struct super_block *sb,
- struct ext3_reserve_window_node *rsv)
+void ext4_rsv_window_add(struct super_block *sb,
+ struct ext4_reserve_window_node *rsv)
{
- struct rb_root *root = &EXT3_SB(sb)->s_rsv_window_root;
+ struct rb_root *root = &EXT4_SB(sb)->s_rsv_window_root;
struct rb_node *node = &rsv->rsv_node;
- ext3_fsblk_t start = rsv->rsv_start;
+ ext4_fsblk_t start = rsv->rsv_start;
struct rb_node ** p = &root->rb_node;
struct rb_node * parent = NULL;
- struct ext3_reserve_window_node *this;
+ struct ext4_reserve_window_node *this;
while (*p)
{
parent = *p;
- this = rb_entry(parent, struct ext3_reserve_window_node, rsv_node);
+ this = rb_entry(parent, struct ext4_reserve_window_node, rsv_node);
if (start < this->rsv_start)
p = &(*p)->rb_left;
}
/**
- * ext3_rsv_window_remove() -- unlink a window from the reservation rb tree
+ * ext4_rsv_window_remove() -- unlink a window from the reservation rb tree
* @sb: super block
* @rsv: reservation window to remove
*
* rsv_lock hold.
*/
static void rsv_window_remove(struct super_block *sb,
- struct ext3_reserve_window_node *rsv)
+ struct ext4_reserve_window_node *rsv)
{
- rsv->rsv_start = EXT3_RESERVE_WINDOW_NOT_ALLOCATED;
- rsv->rsv_end = EXT3_RESERVE_WINDOW_NOT_ALLOCATED;
+ rsv->rsv_start = EXT4_RESERVE_WINDOW_NOT_ALLOCATED;
+ rsv->rsv_end = EXT4_RESERVE_WINDOW_NOT_ALLOCATED;
rsv->rsv_alloc_hit = 0;
- rb_erase(&rsv->rsv_node, &EXT3_SB(sb)->s_rsv_window_root);
+ rb_erase(&rsv->rsv_node, &EXT4_SB(sb)->s_rsv_window_root);
}
/*
* rsv_is_empty() -- Check if the reservation window is allocated.
* @rsv: given reservation window to check
*
- * returns 1 if the end block is EXT3_RESERVE_WINDOW_NOT_ALLOCATED.
+ * returns 1 if the end block is EXT4_RESERVE_WINDOW_NOT_ALLOCATED.
*/
-static inline int rsv_is_empty(struct ext3_reserve_window *rsv)
+static inline int rsv_is_empty(struct ext4_reserve_window *rsv)
{
/* a valid reservation end block could not be 0 */
- return rsv->_rsv_end == EXT3_RESERVE_WINDOW_NOT_ALLOCATED;
+ return rsv->_rsv_end == EXT4_RESERVE_WINDOW_NOT_ALLOCATED;
}
/**
- * ext3_init_block_alloc_info()
+ * ext4_init_block_alloc_info()
* @inode: file inode structure
*
* Allocate and initialize the reservation window structure, and
- * link the window to the ext3 inode structure at last
+ * link the window to the ext4 inode structure at last
*
* The reservation window structure is only dynamically allocated
- * and linked to ext3 inode the first time the open file
- * needs a new block. So, before every ext3_new_block(s) call, for
+ * and linked to ext4 inode the first time the open file
+ * needs a new block. So, before every ext4_new_block(s) call, for
* regular files, we should check whether the reservation window
* structure exists or not. In the latter case, this function is called.
* Fail to do so will result in block reservation being turned off for that
* open file.
*
- * This function is called from ext3_get_blocks_handle(), also called
+ * This function is called from ext4_get_blocks_handle(), also called
* when setting the reservation window size through ioctl before the file
* is open for write (needs block allocation).
*
* Needs truncate_mutex protection prior to call this function.
*/
-void ext3_init_block_alloc_info(struct inode *inode)
+void ext4_init_block_alloc_info(struct inode *inode)
{
- struct ext3_inode_info *ei = EXT3_I(inode);
- struct ext3_block_alloc_info *block_i = ei->i_block_alloc_info;
+ struct ext4_inode_info *ei = EXT4_I(inode);
+ struct ext4_block_alloc_info *block_i = ei->i_block_alloc_info;
struct super_block *sb = inode->i_sb;
block_i = kmalloc(sizeof(*block_i), GFP_NOFS);
if (block_i) {
- struct ext3_reserve_window_node *rsv = &block_i->rsv_window_node;
+ struct ext4_reserve_window_node *rsv = &block_i->rsv_window_node;
- rsv->rsv_start = EXT3_RESERVE_WINDOW_NOT_ALLOCATED;
- rsv->rsv_end = EXT3_RESERVE_WINDOW_NOT_ALLOCATED;
+ rsv->rsv_start = EXT4_RESERVE_WINDOW_NOT_ALLOCATED;
+ rsv->rsv_end = EXT4_RESERVE_WINDOW_NOT_ALLOCATED;
/*
* if filesystem is mounted with NORESERVATION, the goal
if (!test_opt(sb, RESERVATION))
rsv->rsv_goal_size = 0;
else
- rsv->rsv_goal_size = EXT3_DEFAULT_RESERVE_BLOCKS;
+ rsv->rsv_goal_size = EXT4_DEFAULT_RESERVE_BLOCKS;
rsv->rsv_alloc_hit = 0;
block_i->last_alloc_logical_block = 0;
block_i->last_alloc_physical_block = 0;
}
/**
- * ext3_discard_reservation()
+ * ext4_discard_reservation()
* @inode: inode
*
* Discard(free) block reservation window on last file close, or truncate
* or at last iput().
*
* It is being called in three cases:
- * ext3_release_file(): last writer close the file
- * ext3_clear_inode(): last iput(), when nobody link to this file.
- * ext3_truncate(): when the block indirect map is about to change.
+ * ext4_release_file(): last writer close the file
+ * ext4_clear_inode(): last iput(), when nobody link to this file.
+ * ext4_truncate(): when the block indirect map is about to change.
*
*/
-void ext3_discard_reservation(struct inode *inode)
+void ext4_discard_reservation(struct inode *inode)
{
- struct ext3_inode_info *ei = EXT3_I(inode);
- struct ext3_block_alloc_info *block_i = ei->i_block_alloc_info;
- struct ext3_reserve_window_node *rsv;
- spinlock_t *rsv_lock = &EXT3_SB(inode->i_sb)->s_rsv_window_lock;
+ struct ext4_inode_info *ei = EXT4_I(inode);
+ struct ext4_block_alloc_info *block_i = ei->i_block_alloc_info;
+ struct ext4_reserve_window_node *rsv;
+ spinlock_t *rsv_lock = &EXT4_SB(inode->i_sb)->s_rsv_window_lock;
if (!block_i)
return;
}
/**
- * ext3_free_blocks_sb() -- Free given blocks and update quota
+ * ext4_free_blocks_sb() -- Free given blocks and update quota
* @handle: handle to this transaction
* @sb: super block
* @block: start physcial block to free
* @count: number of blocks to free
* @pdquot_freed_blocks: pointer to quota
*/
-void ext3_free_blocks_sb(handle_t *handle, struct super_block *sb,
- ext3_fsblk_t block, unsigned long count,
+void ext4_free_blocks_sb(handle_t *handle, struct super_block *sb,
+ ext4_fsblk_t block, unsigned long count,
unsigned long *pdquot_freed_blocks)
{
struct buffer_head *bitmap_bh = NULL;
struct buffer_head *gd_bh;
unsigned long block_group;
- ext3_grpblk_t bit;
+ ext4_grpblk_t bit;
unsigned long i;
unsigned long overflow;
- struct ext3_group_desc * desc;
- struct ext3_super_block * es;
- struct ext3_sb_info *sbi;
+ struct ext4_group_desc * desc;
+ struct ext4_super_block * es;
+ struct ext4_sb_info *sbi;
int err = 0, ret;
- ext3_grpblk_t group_freed;
+ ext4_grpblk_t group_freed;
*pdquot_freed_blocks = 0;
- sbi = EXT3_SB(sb);
+ sbi = EXT4_SB(sb);
es = sbi->s_es;
if (block < le32_to_cpu(es->s_first_data_block) ||
block + count < block ||
block + count > le32_to_cpu(es->s_blocks_count)) {
- ext3_error (sb, "ext3_free_blocks",
+ ext4_error (sb, "ext4_free_blocks",
"Freeing blocks not in datazone - "
"block = "E3FSBLK", count = %lu", block, count);
goto error_return;
}
- ext3_debug ("freeing block(s) %lu-%lu\n", block, block + count - 1);
+ ext4_debug ("freeing block(s) %lu-%lu\n", block, block + count - 1);
do_more:
overflow = 0;
block_group = (block - le32_to_cpu(es->s_first_data_block)) /
- EXT3_BLOCKS_PER_GROUP(sb);
+ EXT4_BLOCKS_PER_GROUP(sb);
bit = (block - le32_to_cpu(es->s_first_data_block)) %
- EXT3_BLOCKS_PER_GROUP(sb);
+ EXT4_BLOCKS_PER_GROUP(sb);
/*
* Check to see if we are freeing blocks across a group
* boundary.
*/
- if (bit + count > EXT3_BLOCKS_PER_GROUP(sb)) {
- overflow = bit + count - EXT3_BLOCKS_PER_GROUP(sb);
+ if (bit + count > EXT4_BLOCKS_PER_GROUP(sb)) {
+ overflow = bit + count - EXT4_BLOCKS_PER_GROUP(sb);
count -= overflow;
}
brelse(bitmap_bh);
bitmap_bh = read_block_bitmap(sb, block_group);
if (!bitmap_bh)
goto error_return;
- desc = ext3_get_group_desc (sb, block_group, &gd_bh);
+ desc = ext4_get_group_desc (sb, block_group, &gd_bh);
if (!desc)
goto error_return;
sbi->s_itb_per_group) ||
in_range (block + count - 1, le32_to_cpu(desc->bg_inode_table),
sbi->s_itb_per_group))
- ext3_error (sb, "ext3_free_blocks",
+ ext4_error (sb, "ext4_free_blocks",
"Freeing blocks in system zones - "
"Block = "E3FSBLK", count = %lu",
block, count);
*/
/* @@@ check errors */
BUFFER_TRACE(bitmap_bh, "getting undo access");
- err = ext3_journal_get_undo_access(handle, bitmap_bh);
+ err = ext4_journal_get_undo_access(handle, bitmap_bh);
if (err)
goto error_return;
* using it
*/
BUFFER_TRACE(gd_bh, "get_write_access");
- err = ext3_journal_get_write_access(handle, gd_bh);
+ err = ext4_journal_get_write_access(handle, gd_bh);
if (err)
goto error_return;
BUFFER_TRACE(bitmap_bh, "set in b_committed_data");
J_ASSERT_BH(bitmap_bh,
bh2jh(bitmap_bh)->b_committed_data != NULL);
- ext3_set_bit_atomic(sb_bgl_lock(sbi, block_group), bit + i,
+ ext4_set_bit_atomic(sb_bgl_lock(sbi, block_group), bit + i,
bh2jh(bitmap_bh)->b_committed_data);
/*
* the allocator uses.
*/
BUFFER_TRACE(bitmap_bh, "clear bit");
- if (!ext3_clear_bit_atomic(sb_bgl_lock(sbi, block_group),
+ if (!ext4_clear_bit_atomic(sb_bgl_lock(sbi, block_group),
bit + i, bitmap_bh->b_data)) {
jbd_unlock_bh_state(bitmap_bh);
- ext3_error(sb, __FUNCTION__,
+ ext4_error(sb, __FUNCTION__,
"bit already cleared for block "E3FSBLK,
block + i);
jbd_lock_bh_state(bitmap_bh);
/* We dirtied the bitmap block */
BUFFER_TRACE(bitmap_bh, "dirtied bitmap block");
- err = ext3_journal_dirty_metadata(handle, bitmap_bh);
+ err = ext4_journal_dirty_metadata(handle, bitmap_bh);
/* And the group descriptor block */
BUFFER_TRACE(gd_bh, "dirtied group descriptor block");
- ret = ext3_journal_dirty_metadata(handle, gd_bh);
+ ret = ext4_journal_dirty_metadata(handle, gd_bh);
if (!err) err = ret;
*pdquot_freed_blocks += group_freed;
sb->s_dirt = 1;
error_return:
brelse(bitmap_bh);
- ext3_std_error(sb, err);
+ ext4_std_error(sb, err);
return;
}
/**
- * ext3_free_blocks() -- Free given blocks and update quota
+ * ext4_free_blocks() -- Free given blocks and update quota
* @handle: handle for this transaction
* @inode: inode
* @block: start physical block to free
* @count: number of blocks to count
*/
-void ext3_free_blocks(handle_t *handle, struct inode *inode,
- ext3_fsblk_t block, unsigned long count)
+void ext4_free_blocks(handle_t *handle, struct inode *inode,
+ ext4_fsblk_t block, unsigned long count)
{
struct super_block * sb;
unsigned long dquot_freed_blocks;
sb = inode->i_sb;
if (!sb) {
- printk ("ext3_free_blocks: nonexistent device");
+ printk ("ext4_free_blocks: nonexistent device");
return;
}
- ext3_free_blocks_sb(handle, sb, block, count, &dquot_freed_blocks);
+ ext4_free_blocks_sb(handle, sb, block, count, &dquot_freed_blocks);
if (dquot_freed_blocks)
DQUOT_FREE_BLOCK(inode, dquot_freed_blocks);
return;
}
/**
- * ext3_test_allocatable()
+ * ext4_test_allocatable()
* @nr: given allocation block group
* @bh: bufferhead contains the bitmap of the given block group
*
- * For ext3 allocations, we must not reuse any blocks which are
+ * For ext4 allocations, we must not reuse any blocks which are
* allocated in the bitmap buffer's "last committed data" copy. This
* prevents deletes from freeing up the page for reuse until we have
* committed the delete transaction.
* data-writes at some point, and disable it for metadata allocations or
* sync-data inodes.
*/
-static int ext3_test_allocatable(ext3_grpblk_t nr, struct buffer_head *bh)
+static int ext4_test_allocatable(ext4_grpblk_t nr, struct buffer_head *bh)
{
int ret;
struct journal_head *jh = bh2jh(bh);
- if (ext3_test_bit(nr, bh->b_data))
+ if (ext4_test_bit(nr, bh->b_data))
return 0;
jbd_lock_bh_state(bh);
if (!jh->b_committed_data)
ret = 1;
else
- ret = !ext3_test_bit(nr, jh->b_committed_data);
+ ret = !ext4_test_bit(nr, jh->b_committed_data);
jbd_unlock_bh_state(bh);
return ret;
}
* bitmap on disk and the last-committed copy in journal, until we find a
* bit free in both bitmaps.
*/
-static ext3_grpblk_t
-bitmap_search_next_usable_block(ext3_grpblk_t start, struct buffer_head *bh,
- ext3_grpblk_t maxblocks)
+static ext4_grpblk_t
+bitmap_search_next_usable_block(ext4_grpblk_t start, struct buffer_head *bh,
+ ext4_grpblk_t maxblocks)
{
- ext3_grpblk_t next;
+ ext4_grpblk_t next;
struct journal_head *jh = bh2jh(bh);
while (start < maxblocks) {
- next = ext3_find_next_zero_bit(bh->b_data, maxblocks, start);
+ next = ext4_find_next_zero_bit(bh->b_data, maxblocks, start);
if (next >= maxblocks)
return -1;
- if (ext3_test_allocatable(next, bh))
+ if (ext4_test_allocatable(next, bh))
return next;
jbd_lock_bh_state(bh);
if (jh->b_committed_data)
- start = ext3_find_next_zero_bit(jh->b_committed_data,
+ start = ext4_find_next_zero_bit(jh->b_committed_data,
maxblocks, next);
jbd_unlock_bh_state(bh);
}
* the initial goal; then for a free byte somewhere in the bitmap; then
* for any free bit in the bitmap.
*/
-static ext3_grpblk_t
-find_next_usable_block(ext3_grpblk_t start, struct buffer_head *bh,
- ext3_grpblk_t maxblocks)
+static ext4_grpblk_t
+find_next_usable_block(ext4_grpblk_t start, struct buffer_head *bh,
+ ext4_grpblk_t maxblocks)
{
- ext3_grpblk_t here, next;
+ ext4_grpblk_t here, next;
char *p, *r;
if (start > 0) {
* block within the next XX blocks.
*
* end_goal is more or less random, but it has to be
- * less than EXT3_BLOCKS_PER_GROUP. Aligning up to the
+ * less than EXT4_BLOCKS_PER_GROUP. Aligning up to the
* next 64-bit boundary is simple..
*/
- ext3_grpblk_t end_goal = (start + 63) & ~63;
+ ext4_grpblk_t end_goal = (start + 63) & ~63;
if (end_goal > maxblocks)
end_goal = maxblocks;
- here = ext3_find_next_zero_bit(bh->b_data, end_goal, start);
- if (here < end_goal && ext3_test_allocatable(here, bh))
+ here = ext4_find_next_zero_bit(bh->b_data, end_goal, start);
+ if (here < end_goal && ext4_test_allocatable(here, bh))
return here;
- ext3_debug("Bit not found near goal\n");
+ ext4_debug("Bit not found near goal\n");
}
here = start;
r = memscan(p, 0, (maxblocks - here + 7) >> 3);
next = (r - ((char *)bh->b_data)) << 3;
- if (next < maxblocks && next >= start && ext3_test_allocatable(next, bh))
+ if (next < maxblocks && next >= start && ext4_test_allocatable(next, bh))
return next;
/*
* zero (failure).
*/
static inline int
-claim_block(spinlock_t *lock, ext3_grpblk_t block, struct buffer_head *bh)
+claim_block(spinlock_t *lock, ext4_grpblk_t block, struct buffer_head *bh)
{
struct journal_head *jh = bh2jh(bh);
int ret;
- if (ext3_set_bit_atomic(lock, block, bh->b_data))
+ if (ext4_set_bit_atomic(lock, block, bh->b_data))
return 0;
jbd_lock_bh_state(bh);
- if (jh->b_committed_data && ext3_test_bit(block,jh->b_committed_data)) {
- ext3_clear_bit_atomic(lock, block, bh->b_data);
+ if (jh->b_committed_data && ext4_test_bit(block,jh->b_committed_data)) {
+ ext4_clear_bit_atomic(lock, block, bh->b_data);
ret = 0;
} else {
ret = 1;
}
/**
- * ext3_try_to_allocate()
+ * ext4_try_to_allocate()
* @sb: superblock
* @handle: handle to this transaction
* @group: given allocation block group
*
* If we failed to allocate the desired block then we may end up crossing to a
* new bitmap. In that case we must release write access to the old one via
- * ext3_journal_release_buffer(), else we'll run out of credits.
+ * ext4_journal_release_buffer(), else we'll run out of credits.
*/
-static ext3_grpblk_t
-ext3_try_to_allocate(struct super_block *sb, handle_t *handle, int group,
- struct buffer_head *bitmap_bh, ext3_grpblk_t grp_goal,
- unsigned long *count, struct ext3_reserve_window *my_rsv)
+static ext4_grpblk_t
+ext4_try_to_allocate(struct super_block *sb, handle_t *handle, int group,
+ struct buffer_head *bitmap_bh, ext4_grpblk_t grp_goal,
+ unsigned long *count, struct ext4_reserve_window *my_rsv)
{
- ext3_fsblk_t group_first_block;
- ext3_grpblk_t start, end;
+ ext4_fsblk_t group_first_block;
+ ext4_grpblk_t start, end;
unsigned long num = 0;
/* we do allocation within the reservation window if we have a window */
if (my_rsv) {
- group_first_block = ext3_group_first_block_no(sb, group);
+ group_first_block = ext4_group_first_block_no(sb, group);
if (my_rsv->_rsv_start >= group_first_block)
start = my_rsv->_rsv_start - group_first_block;
else
/* reservation window cross group boundary */
start = 0;
end = my_rsv->_rsv_end - group_first_block + 1;
- if (end > EXT3_BLOCKS_PER_GROUP(sb))
+ if (end > EXT4_BLOCKS_PER_GROUP(sb))
/* reservation window crosses group boundary */
- end = EXT3_BLOCKS_PER_GROUP(sb);
+ end = EXT4_BLOCKS_PER_GROUP(sb);
if ((start <= grp_goal) && (grp_goal < end))
start = grp_goal;
else
start = grp_goal;
else
start = 0;
- end = EXT3_BLOCKS_PER_GROUP(sb);
+ end = EXT4_BLOCKS_PER_GROUP(sb);
}
- BUG_ON(start > EXT3_BLOCKS_PER_GROUP(sb));
+ BUG_ON(start > EXT4_BLOCKS_PER_GROUP(sb));
repeat:
- if (grp_goal < 0 || !ext3_test_allocatable(grp_goal, bitmap_bh)) {
+ if (grp_goal < 0 || !ext4_test_allocatable(grp_goal, bitmap_bh)) {
grp_goal = find_next_usable_block(start, bitmap_bh, end);
if (grp_goal < 0)
goto fail_access;
int i;
for (i = 0; i < 7 && grp_goal > start &&
- ext3_test_allocatable(grp_goal - 1,
+ ext4_test_allocatable(grp_goal - 1,
bitmap_bh);
i++, grp_goal--)
;
}
start = grp_goal;
- if (!claim_block(sb_bgl_lock(EXT3_SB(sb), group),
+ if (!claim_block(sb_bgl_lock(EXT4_SB(sb), group),
grp_goal, bitmap_bh)) {
/*
* The block was allocated by another thread, or it was
num++;
grp_goal++;
while (num < *count && grp_goal < end
- && ext3_test_allocatable(grp_goal, bitmap_bh)
- && claim_block(sb_bgl_lock(EXT3_SB(sb), group),
+ && ext4_test_allocatable(grp_goal, bitmap_bh)
+ && claim_block(sb_bgl_lock(EXT4_SB(sb), group),
grp_goal, bitmap_bh)) {
num++;
grp_goal++;
*
*/
static int find_next_reservable_window(
- struct ext3_reserve_window_node *search_head,
- struct ext3_reserve_window_node *my_rsv,
+ struct ext4_reserve_window_node *search_head,
+ struct ext4_reserve_window_node *my_rsv,
struct super_block * sb,
- ext3_fsblk_t start_block,
- ext3_fsblk_t last_block)
+ ext4_fsblk_t start_block,
+ ext4_fsblk_t last_block)
{
struct rb_node *next;
- struct ext3_reserve_window_node *rsv, *prev;
- ext3_fsblk_t cur;
+ struct ext4_reserve_window_node *rsv, *prev;
+ ext4_fsblk_t cur;
int size = my_rsv->rsv_goal_size;
/* TODO: make the start of the reservation window byte-aligned */
prev = rsv;
next = rb_next(&rsv->rsv_node);
- rsv = list_entry(next,struct ext3_reserve_window_node,rsv_node);
+ rsv = list_entry(next,struct ext4_reserve_window_node,rsv_node);
/*
* Reached the last reservation, we can just append to the
my_rsv->rsv_alloc_hit = 0;
if (prev != my_rsv)
- ext3_rsv_window_add(sb, my_rsv);
+ ext4_rsv_window_add(sb, my_rsv);
return 0;
}
* @bitmap_bh: the block group block bitmap
*
*/
-static int alloc_new_reservation(struct ext3_reserve_window_node *my_rsv,
- ext3_grpblk_t grp_goal, struct super_block *sb,
+static int alloc_new_reservation(struct ext4_reserve_window_node *my_rsv,
+ ext4_grpblk_t grp_goal, struct super_block *sb,
unsigned int group, struct buffer_head *bitmap_bh)
{
- struct ext3_reserve_window_node *search_head;
- ext3_fsblk_t group_first_block, group_end_block, start_block;
- ext3_grpblk_t first_free_block;
- struct rb_root *fs_rsv_root = &EXT3_SB(sb)->s_rsv_window_root;
+ struct ext4_reserve_window_node *search_head;
+ ext4_fsblk_t group_first_block, group_end_block, start_block;
+ ext4_grpblk_t first_free_block;
+ struct rb_root *fs_rsv_root = &EXT4_SB(sb)->s_rsv_window_root;
unsigned long size;
int ret;
- spinlock_t *rsv_lock = &EXT3_SB(sb)->s_rsv_window_lock;
+ spinlock_t *rsv_lock = &EXT4_SB(sb)->s_rsv_window_lock;
- group_first_block = ext3_group_first_block_no(sb, group);
- group_end_block = group_first_block + (EXT3_BLOCKS_PER_GROUP(sb) - 1);
+ group_first_block = ext4_group_first_block_no(sb, group);
+ group_end_block = group_first_block + (EXT4_BLOCKS_PER_GROUP(sb) - 1);
if (grp_goal < 0)
start_block = group_first_block;
* otherwise we keep the same size window
*/
size = size * 2;
- if (size > EXT3_MAX_RESERVE_BLOCKS)
- size = EXT3_MAX_RESERVE_BLOCKS;
+ if (size > EXT4_MAX_RESERVE_BLOCKS)
+ size = EXT4_MAX_RESERVE_BLOCKS;
my_rsv->rsv_goal_size= size;
}
}
* Attempt to expand the reservation window large enough to have
* required number of free blocks
*
- * Since ext3_try_to_allocate() will always allocate blocks within
+ * Since ext4_try_to_allocate() will always allocate blocks within
* the reservation window range, if the window size is too small,
* multiple blocks allocation has to stop at the end of the reservation
* window. To make this more efficient, given the total number of
* blocks needed and the current size of the window, we try to
* expand the reservation window size if necessary on a best-effort
- * basis before ext3_new_blocks() tries to allocate blocks,
+ * basis before ext4_new_blocks() tries to allocate blocks,
*/
-static void try_to_extend_reservation(struct ext3_reserve_window_node *my_rsv,
+static void try_to_extend_reservation(struct ext4_reserve_window_node *my_rsv,
struct super_block *sb, int size)
{
- struct ext3_reserve_window_node *next_rsv;
+ struct ext4_reserve_window_node *next_rsv;
struct rb_node *next;
- spinlock_t *rsv_lock = &EXT3_SB(sb)->s_rsv_window_lock;
+ spinlock_t *rsv_lock = &EXT4_SB(sb)->s_rsv_window_lock;
if (!spin_trylock(rsv_lock))
return;
if (!next)
my_rsv->rsv_end += size;
else {
- next_rsv = list_entry(next, struct ext3_reserve_window_node, rsv_node);
+ next_rsv = list_entry(next, struct ext4_reserve_window_node, rsv_node);
if ((next_rsv->rsv_start - my_rsv->rsv_end - 1) >= size)
my_rsv->rsv_end += size;
}
/**
- * ext3_try_to_allocate_with_rsv()
+ * ext4_try_to_allocate_with_rsv()
* @sb: superblock
* @handle: handle to this transaction
* @group: given allocation block group
* We use a red-black tree for the per-filesystem reservation list.
*
*/
-static ext3_grpblk_t
-ext3_try_to_allocate_with_rsv(struct super_block *sb, handle_t *handle,
+static ext4_grpblk_t
+ext4_try_to_allocate_with_rsv(struct super_block *sb, handle_t *handle,
unsigned int group, struct buffer_head *bitmap_bh,
- ext3_grpblk_t grp_goal,
- struct ext3_reserve_window_node * my_rsv,
+ ext4_grpblk_t grp_goal,
+ struct ext4_reserve_window_node * my_rsv,
unsigned long *count, int *errp)
{
- ext3_fsblk_t group_first_block, group_last_block;
- ext3_grpblk_t ret = 0;
+ ext4_fsblk_t group_first_block, group_last_block;
+ ext4_grpblk_t ret = 0;
int fatal;
unsigned long num = *count;
* if the buffer is in BJ_Forget state in the committing transaction.
*/
BUFFER_TRACE(bitmap_bh, "get undo access for new block");
- fatal = ext3_journal_get_undo_access(handle, bitmap_bh);
+ fatal = ext4_journal_get_undo_access(handle, bitmap_bh);
if (fatal) {
*errp = fatal;
return -1;
* or last attempt to allocate a block with reservation turned on failed
*/
if (my_rsv == NULL ) {
- ret = ext3_try_to_allocate(sb, handle, group, bitmap_bh,
+ ret = ext4_try_to_allocate(sb, handle, group, bitmap_bh,
grp_goal, count, NULL);
goto out;
}
/*
* grp_goal is a group relative block number (if there is a goal)
- * 0 < grp_goal < EXT3_BLOCKS_PER_GROUP(sb)
+ * 0 < grp_goal < EXT4_BLOCKS_PER_GROUP(sb)
* first block is a filesystem wide block number
* first block is the block number of the first block in this group
*/
- group_first_block = ext3_group_first_block_no(sb, group);
- group_last_block = group_first_block + (EXT3_BLOCKS_PER_GROUP(sb) - 1);
+ group_first_block = ext4_group_first_block_no(sb, group);
+ group_last_block = group_first_block + (EXT4_BLOCKS_PER_GROUP(sb) - 1);
/*
* Basically we will allocate a new block from inode's reservation
if ((my_rsv->rsv_start > group_last_block) ||
(my_rsv->rsv_end < group_first_block)) {
- rsv_window_dump(&EXT3_SB(sb)->s_rsv_window_root, 1);
+ rsv_window_dump(&EXT4_SB(sb)->s_rsv_window_root, 1);
BUG();
}
- ret = ext3_try_to_allocate(sb, handle, group, bitmap_bh,
+ ret = ext4_try_to_allocate(sb, handle, group, bitmap_bh,
grp_goal, &num, &my_rsv->rsv_window);
if (ret >= 0) {
my_rsv->rsv_alloc_hit += num;
if (ret >= 0) {
BUFFER_TRACE(bitmap_bh, "journal_dirty_metadata for "
"bitmap block");
- fatal = ext3_journal_dirty_metadata(handle, bitmap_bh);
+ fatal = ext4_journal_dirty_metadata(handle, bitmap_bh);
if (fatal) {
*errp = fatal;
return -1;
}
BUFFER_TRACE(bitmap_bh, "journal_release_buffer");
- ext3_journal_release_buffer(handle, bitmap_bh);
+ ext4_journal_release_buffer(handle, bitmap_bh);
return ret;
}
/**
- * ext3_has_free_blocks()
+ * ext4_has_free_blocks()
* @sbi: in-core super block structure.
*
* Check if filesystem has at least 1 free block available for allocation.
*/
-static int ext3_has_free_blocks(struct ext3_sb_info *sbi)
+static int ext4_has_free_blocks(struct ext4_sb_info *sbi)
{
- ext3_fsblk_t free_blocks, root_blocks;
+ ext4_fsblk_t free_blocks, root_blocks;
free_blocks = percpu_counter_read_positive(&sbi->s_freeblocks_counter);
root_blocks = le32_to_cpu(sbi->s_es->s_r_blocks_count);
}
/**
- * ext3_should_retry_alloc()
+ * ext4_should_retry_alloc()
* @sb: super block
* @retries number of attemps has been made
*
- * ext3_should_retry_alloc() is called when ENOSPC is returned, and if
+ * ext4_should_retry_alloc() is called when ENOSPC is returned, and if
* it is profitable to retry the operation, this function will wait
* for the current or commiting transaction to complete, and then
* return TRUE.
*
* if the total number of retries exceed three times, return FALSE.
*/
-int ext3_should_retry_alloc(struct super_block *sb, int *retries)
+int ext4_should_retry_alloc(struct super_block *sb, int *retries)
{
- if (!ext3_has_free_blocks(EXT3_SB(sb)) || (*retries)++ > 3)
+ if (!ext4_has_free_blocks(EXT4_SB(sb)) || (*retries)++ > 3)
return 0;
jbd_debug(1, "%s: retrying operation after ENOSPC\n", sb->s_id);
- return journal_force_commit_nested(EXT3_SB(sb)->s_journal);
+ return journal_force_commit_nested(EXT4_SB(sb)->s_journal);
}
/**
- * ext3_new_blocks() -- core block(s) allocation function
+ * ext4_new_blocks() -- core block(s) allocation function
* @handle: handle to this transaction
* @inode: file inode
* @goal: given target block(filesystem wide)
* @count: target number of blocks to allocate
* @errp: error code
*
- * ext3_new_blocks uses a goal block to assist allocation. It tries to
+ * ext4_new_blocks uses a goal block to assist allocation. It tries to
* allocate block(s) from the block group contains the goal block first. If that
* fails, it will try to allocate block(s) from other block groups without
* any specific goal block.
*
*/
-ext3_fsblk_t ext3_new_blocks(handle_t *handle, struct inode *inode,
- ext3_fsblk_t goal, unsigned long *count, int *errp)
+ext4_fsblk_t ext4_new_blocks(handle_t *handle, struct inode *inode,
+ ext4_fsblk_t goal, unsigned long *count, int *errp)
{
struct buffer_head *bitmap_bh = NULL;
struct buffer_head *gdp_bh;
int group_no;
int goal_group;
- ext3_grpblk_t grp_target_blk; /* blockgroup relative goal block */
- ext3_grpblk_t grp_alloc_blk; /* blockgroup-relative allocated block*/
- ext3_fsblk_t ret_block; /* filesyetem-wide allocated block */
+ ext4_grpblk_t grp_target_blk; /* blockgroup relative goal block */
+ ext4_grpblk_t grp_alloc_blk; /* blockgroup-relative allocated block*/
+ ext4_fsblk_t ret_block; /* filesyetem-wide allocated block */
int bgi; /* blockgroup iteration index */
int fatal = 0, err;
int performed_allocation = 0;
- ext3_grpblk_t free_blocks; /* number of free blocks in a group */
+ ext4_grpblk_t free_blocks; /* number of free blocks in a group */
struct super_block *sb;
- struct ext3_group_desc *gdp;
- struct ext3_super_block *es;
- struct ext3_sb_info *sbi;
- struct ext3_reserve_window_node *my_rsv = NULL;
- struct ext3_block_alloc_info *block_i;
+ struct ext4_group_desc *gdp;
+ struct ext4_super_block *es;
+ struct ext4_sb_info *sbi;
+ struct ext4_reserve_window_node *my_rsv = NULL;
+ struct ext4_block_alloc_info *block_i;
unsigned short windowsz = 0;
-#ifdef EXT3FS_DEBUG
+#ifdef EXT4FS_DEBUG
static int goal_hits, goal_attempts;
#endif
unsigned long ngroups;
*errp = -ENOSPC;
sb = inode->i_sb;
if (!sb) {
- printk("ext3_new_block: nonexistent device");
+ printk("ext4_new_block: nonexistent device");
return 0;
}
return 0;
}
- sbi = EXT3_SB(sb);
- es = EXT3_SB(sb)->s_es;
- ext3_debug("goal=%lu.\n", goal);
+ sbi = EXT4_SB(sb);
+ es = EXT4_SB(sb)->s_es;
+ ext4_debug("goal=%lu.\n", goal);
/*
* Allocate a block from reservation only when
* filesystem is mounted with reservation(default,-o reservation), and
* it's a regular file, and
* the desired window size is greater than 0 (One could use ioctl
- * command EXT3_IOC_SETRSVSZ to set the window size to 0 to turn off
+ * command EXT4_IOC_SETRSVSZ to set the window size to 0 to turn off
* reservation on that particular file)
*/
- block_i = EXT3_I(inode)->i_block_alloc_info;
+ block_i = EXT4_I(inode)->i_block_alloc_info;
if (block_i && ((windowsz = block_i->rsv_window_node.rsv_goal_size) > 0))
my_rsv = &block_i->rsv_window_node;
- if (!ext3_has_free_blocks(sbi)) {
+ if (!ext4_has_free_blocks(sbi)) {
*errp = -ENOSPC;
goto out;
}
goal >= le32_to_cpu(es->s_blocks_count))
goal = le32_to_cpu(es->s_first_data_block);
group_no = (goal - le32_to_cpu(es->s_first_data_block)) /
- EXT3_BLOCKS_PER_GROUP(sb);
+ EXT4_BLOCKS_PER_GROUP(sb);
goal_group = group_no;
retry_alloc:
- gdp = ext3_get_group_desc(sb, group_no, &gdp_bh);
+ gdp = ext4_get_group_desc(sb, group_no, &gdp_bh);
if (!gdp)
goto io_error;
if (free_blocks > 0) {
grp_target_blk = ((goal - le32_to_cpu(es->s_first_data_block)) %
- EXT3_BLOCKS_PER_GROUP(sb));
+ EXT4_BLOCKS_PER_GROUP(sb));
bitmap_bh = read_block_bitmap(sb, group_no);
if (!bitmap_bh)
goto io_error;
- grp_alloc_blk = ext3_try_to_allocate_with_rsv(sb, handle,
+ grp_alloc_blk = ext4_try_to_allocate_with_rsv(sb, handle,
group_no, bitmap_bh, grp_target_blk,
my_rsv, &num, &fatal);
if (fatal)
goto allocated;
}
- ngroups = EXT3_SB(sb)->s_groups_count;
+ ngroups = EXT4_SB(sb)->s_groups_count;
smp_rmb();
/*
group_no++;
if (group_no >= ngroups)
group_no = 0;
- gdp = ext3_get_group_desc(sb, group_no, &gdp_bh);
+ gdp = ext4_get_group_desc(sb, group_no, &gdp_bh);
if (!gdp) {
*errp = -EIO;
goto out;
/*
* try to allocate block(s) from this group, without a goal(-1).
*/
- grp_alloc_blk = ext3_try_to_allocate_with_rsv(sb, handle,
+ grp_alloc_blk = ext4_try_to_allocate_with_rsv(sb, handle,
group_no, bitmap_bh, -1, my_rsv,
&num, &fatal);
if (fatal)
allocated:
- ext3_debug("using block group %d(%d)\n",
+ ext4_debug("using block group %d(%d)\n",
group_no, gdp->bg_free_blocks_count);
BUFFER_TRACE(gdp_bh, "get_write_access");
- fatal = ext3_journal_get_write_access(handle, gdp_bh);
+ fatal = ext4_journal_get_write_access(handle, gdp_bh);
if (fatal)
goto out;
- ret_block = grp_alloc_blk + ext3_group_first_block_no(sb, group_no);
+ ret_block = grp_alloc_blk + ext4_group_first_block_no(sb, group_no);
if (in_range(le32_to_cpu(gdp->bg_block_bitmap), ret_block, num) ||
in_range(le32_to_cpu(gdp->bg_inode_bitmap), ret_block, num) ||
in_range(ret_block, le32_to_cpu(gdp->bg_inode_table),
- EXT3_SB(sb)->s_itb_per_group) ||
+ EXT4_SB(sb)->s_itb_per_group) ||
in_range(ret_block + num - 1, le32_to_cpu(gdp->bg_inode_table),
- EXT3_SB(sb)->s_itb_per_group))
- ext3_error(sb, "ext3_new_block",
+ EXT4_SB(sb)->s_itb_per_group))
+ ext4_error(sb, "ext4_new_block",
"Allocating block in system zone - "
"blocks from "E3FSBLK", length %lu",
ret_block, num);
int i;
for (i = 0; i < num; i++) {
- if (ext3_test_bit(grp_alloc_blk+i,
+ if (ext4_test_bit(grp_alloc_blk+i,
bh2jh(bitmap_bh)->b_committed_data)) {
printk("%s: block was unexpectedly set in "
"b_committed_data\n", __FUNCTION__);
}
}
}
- ext3_debug("found bit %d\n", grp_alloc_blk);
+ ext4_debug("found bit %d\n", grp_alloc_blk);
spin_unlock(sb_bgl_lock(sbi, group_no));
jbd_unlock_bh_state(bitmap_bh);
#endif
if (ret_block + num - 1 >= le32_to_cpu(es->s_blocks_count)) {
- ext3_error(sb, "ext3_new_block",
+ ext4_error(sb, "ext4_new_block",
"block("E3FSBLK") >= blocks count(%d) - "
"block_group = %d, es == %p ", ret_block,
le32_to_cpu(es->s_blocks_count), group_no, es);
* list of some description. We don't know in advance whether
* the caller wants to use it as metadata or data.
*/
- ext3_debug("allocating block %lu. Goal hits %d of %d.\n",
+ ext4_debug("allocating block %lu. Goal hits %d of %d.\n",
ret_block, goal_hits, goal_attempts);
spin_lock(sb_bgl_lock(sbi, group_no));
percpu_counter_mod(&sbi->s_freeblocks_counter, -num);
BUFFER_TRACE(gdp_bh, "journal_dirty_metadata for group descriptor");
- err = ext3_journal_dirty_metadata(handle, gdp_bh);
+ err = ext4_journal_dirty_metadata(handle, gdp_bh);
if (!fatal)
fatal = err;
out:
if (fatal) {
*errp = fatal;
- ext3_std_error(sb, fatal);
+ ext4_std_error(sb, fatal);
}
/*
* Undo the block allocation
return 0;
}
-ext3_fsblk_t ext3_new_block(handle_t *handle, struct inode *inode,
- ext3_fsblk_t goal, int *errp)
+ext4_fsblk_t ext4_new_block(handle_t *handle, struct inode *inode,
+ ext4_fsblk_t goal, int *errp)
{
unsigned long count = 1;
- return ext3_new_blocks(handle, inode, goal, &count, errp);
+ return ext4_new_blocks(handle, inode, goal, &count, errp);
}
/**
- * ext3_count_free_blocks() -- count filesystem free blocks
+ * ext4_count_free_blocks() -- count filesystem free blocks
* @sb: superblock
*
* Adds up the number of free blocks from each block group.
*/
-ext3_fsblk_t ext3_count_free_blocks(struct super_block *sb)
+ext4_fsblk_t ext4_count_free_blocks(struct super_block *sb)
{
- ext3_fsblk_t desc_count;
- struct ext3_group_desc *gdp;
+ ext4_fsblk_t desc_count;
+ struct ext4_group_desc *gdp;
int i;
- unsigned long ngroups = EXT3_SB(sb)->s_groups_count;
-#ifdef EXT3FS_DEBUG
- struct ext3_super_block *es;
- ext3_fsblk_t bitmap_count;
+ unsigned long ngroups = EXT4_SB(sb)->s_groups_count;
+#ifdef EXT4FS_DEBUG
+ struct ext4_super_block *es;
+ ext4_fsblk_t bitmap_count;
unsigned long x;
struct buffer_head *bitmap_bh = NULL;
- es = EXT3_SB(sb)->s_es;
+ es = EXT4_SB(sb)->s_es;
desc_count = 0;
bitmap_count = 0;
gdp = NULL;
smp_rmb();
for (i = 0; i < ngroups; i++) {
- gdp = ext3_get_group_desc(sb, i, NULL);
+ gdp = ext4_get_group_desc(sb, i, NULL);
if (!gdp)
continue;
desc_count += le16_to_cpu(gdp->bg_free_blocks_count);
if (bitmap_bh == NULL)
continue;
- x = ext3_count_free(bitmap_bh, sb->s_blocksize);
+ x = ext4_count_free(bitmap_bh, sb->s_blocksize);
printk("group %d: stored = %d, counted = %lu\n",
i, le16_to_cpu(gdp->bg_free_blocks_count), x);
bitmap_count += x;
}
brelse(bitmap_bh);
- printk("ext3_count_free_blocks: stored = "E3FSBLK
+ printk("ext4_count_free_blocks: stored = "E3FSBLK
", computed = "E3FSBLK", "E3FSBLK"\n",
le32_to_cpu(es->s_free_blocks_count),
desc_count, bitmap_count);
desc_count = 0;
smp_rmb();
for (i = 0; i < ngroups; i++) {
- gdp = ext3_get_group_desc(sb, i, NULL);
+ gdp = ext4_get_group_desc(sb, i, NULL);
if (!gdp)
continue;
desc_count += le16_to_cpu(gdp->bg_free_blocks_count);
}
static inline int
-block_in_use(ext3_fsblk_t block, struct super_block *sb, unsigned char *map)
+block_in_use(ext4_fsblk_t block, struct super_block *sb, unsigned char *map)
{
- return ext3_test_bit ((block -
- le32_to_cpu(EXT3_SB(sb)->s_es->s_first_data_block)) %
- EXT3_BLOCKS_PER_GROUP(sb), map);
+ return ext4_test_bit ((block -
+ le32_to_cpu(EXT4_SB(sb)->s_es->s_first_data_block)) %
+ EXT4_BLOCKS_PER_GROUP(sb), map);
}
static inline int test_root(int a, int b)
return num == a;
}
-static int ext3_group_sparse(int group)
+static int ext4_group_sparse(int group)
{
if (group <= 1)
return 1;
}
/**
- * ext3_bg_has_super - number of blocks used by the superblock in group
+ * ext4_bg_has_super - number of blocks used by the superblock in group
* @sb: superblock for filesystem
* @group: group number to check
*
* Return the number of blocks used by the superblock (primary or backup)
* in this group. Currently this will be only 0 or 1.
*/
-int ext3_bg_has_super(struct super_block *sb, int group)
+int ext4_bg_has_super(struct super_block *sb, int group)
{
- if (EXT3_HAS_RO_COMPAT_FEATURE(sb,
- EXT3_FEATURE_RO_COMPAT_SPARSE_SUPER) &&
- !ext3_group_sparse(group))
+ if (EXT4_HAS_RO_COMPAT_FEATURE(sb,
+ EXT4_FEATURE_RO_COMPAT_SPARSE_SUPER) &&
+ !ext4_group_sparse(group))
return 0;
return 1;
}
-static unsigned long ext3_bg_num_gdb_meta(struct super_block *sb, int group)
+static unsigned long ext4_bg_num_gdb_meta(struct super_block *sb, int group)
{
- unsigned long metagroup = group / EXT3_DESC_PER_BLOCK(sb);
- unsigned long first = metagroup * EXT3_DESC_PER_BLOCK(sb);
- unsigned long last = first + EXT3_DESC_PER_BLOCK(sb) - 1;
+ unsigned long metagroup = group / EXT4_DESC_PER_BLOCK(sb);
+ unsigned long first = metagroup * EXT4_DESC_PER_BLOCK(sb);
+ unsigned long last = first + EXT4_DESC_PER_BLOCK(sb) - 1;
if (group == first || group == first + 1 || group == last)
return 1;
return 0;
}
-static unsigned long ext3_bg_num_gdb_nometa(struct super_block *sb, int group)
+static unsigned long ext4_bg_num_gdb_nometa(struct super_block *sb, int group)
{
- if (EXT3_HAS_RO_COMPAT_FEATURE(sb,
- EXT3_FEATURE_RO_COMPAT_SPARSE_SUPER) &&
- !ext3_group_sparse(group))
+ if (EXT4_HAS_RO_COMPAT_FEATURE(sb,
+ EXT4_FEATURE_RO_COMPAT_SPARSE_SUPER) &&
+ !ext4_group_sparse(group))
return 0;
- return EXT3_SB(sb)->s_gdb_count;
+ return EXT4_SB(sb)->s_gdb_count;
}
/**
- * ext3_bg_num_gdb - number of blocks used by the group table in group
+ * ext4_bg_num_gdb - number of blocks used by the group table in group
* @sb: superblock for filesystem
* @group: group number to check
*
* (primary or backup) in this group. In the future there may be a
* different number of descriptor blocks in each group.
*/
-unsigned long ext3_bg_num_gdb(struct super_block *sb, int group)
+unsigned long ext4_bg_num_gdb(struct super_block *sb, int group)
{
unsigned long first_meta_bg =
- le32_to_cpu(EXT3_SB(sb)->s_es->s_first_meta_bg);
- unsigned long metagroup = group / EXT3_DESC_PER_BLOCK(sb);
+ le32_to_cpu(EXT4_SB(sb)->s_es->s_first_meta_bg);
+ unsigned long metagroup = group / EXT4_DESC_PER_BLOCK(sb);
- if (!EXT3_HAS_INCOMPAT_FEATURE(sb,EXT3_FEATURE_INCOMPAT_META_BG) ||
+ if (!EXT4_HAS_INCOMPAT_FEATURE(sb,EXT4_FEATURE_INCOMPAT_META_BG) ||
metagroup < first_meta_bg)
- return ext3_bg_num_gdb_nometa(sb,group);
+ return ext4_bg_num_gdb_nometa(sb,group);
- return ext3_bg_num_gdb_meta(sb,group);
+ return ext4_bg_num_gdb_meta(sb,group);
}
/*
- * linux/fs/ext3/bitmap.c
+ * linux/fs/ext4/bitmap.c
*
* Copyright (C) 1992, 1993, 1994, 1995
* Remy Card (card@masi.ibp.fr)
#include <linux/buffer_head.h>
#include <linux/jbd.h>
-#include <linux/ext3_fs.h>
+#include <linux/ext4_fs.h>
-#ifdef EXT3FS_DEBUG
+#ifdef EXT4FS_DEBUG
static int nibblemap[] = {4, 3, 3, 2, 3, 2, 2, 1, 3, 2, 2, 1, 2, 1, 1, 0};
-unsigned long ext3_count_free (struct buffer_head * map, unsigned int numchars)
+unsigned long ext4_count_free (struct buffer_head * map, unsigned int numchars)
{
unsigned int i;
unsigned long sum = 0;
return (sum);
}
-#endif /* EXT3FS_DEBUG */
+#endif /* EXT4FS_DEBUG */
/*
- * linux/fs/ext3/dir.c
+ * linux/fs/ext4/dir.c
*
* Copyright (C) 1992, 1993, 1994, 1995
* Remy Card (card@masi.ibp.fr)
*
* Copyright (C) 1991, 1992 Linus Torvalds
*
- * ext3 directory handling functions
+ * ext4 directory handling functions
*
* Big-endian to little-endian byte-swapping/bitmaps by
* David S. Miller (davem@caip.rutgers.edu), 1995
#include <linux/fs.h>
#include <linux/jbd.h>
-#include <linux/ext3_fs.h>
+#include <linux/ext4_fs.h>
#include <linux/buffer_head.h>
#include <linux/smp_lock.h>
#include <linux/slab.h>
#include <linux/rbtree.h>
-static unsigned char ext3_filetype_table[] = {
+static unsigned char ext4_filetype_table[] = {
DT_UNKNOWN, DT_REG, DT_DIR, DT_CHR, DT_BLK, DT_FIFO, DT_SOCK, DT_LNK
};
-static int ext3_readdir(struct file *, void *, filldir_t);
-static int ext3_dx_readdir(struct file * filp,
+static int ext4_readdir(struct file *, void *, filldir_t);
+static int ext4_dx_readdir(struct file * filp,
void * dirent, filldir_t filldir);
-static int ext3_release_dir (struct inode * inode,
+static int ext4_release_dir (struct inode * inode,
struct file * filp);
-const struct file_operations ext3_dir_operations = {
+const struct file_operations ext4_dir_operations = {
.llseek = generic_file_llseek,
.read = generic_read_dir,
- .readdir = ext3_readdir, /* we take BKL. needed?*/
- .ioctl = ext3_ioctl, /* BKL held */
+ .readdir = ext4_readdir, /* we take BKL. needed?*/
+ .ioctl = ext4_ioctl, /* BKL held */
#ifdef CONFIG_COMPAT
- .compat_ioctl = ext3_compat_ioctl,
+ .compat_ioctl = ext4_compat_ioctl,
#endif
- .fsync = ext3_sync_file, /* BKL held */
-#ifdef CONFIG_EXT3_INDEX
- .release = ext3_release_dir,
+ .fsync = ext4_sync_file, /* BKL held */
+#ifdef CONFIG_EXT4_INDEX
+ .release = ext4_release_dir,
#endif
};
static unsigned char get_dtype(struct super_block *sb, int filetype)
{
- if (!EXT3_HAS_INCOMPAT_FEATURE(sb, EXT3_FEATURE_INCOMPAT_FILETYPE) ||
- (filetype >= EXT3_FT_MAX))
+ if (!EXT4_HAS_INCOMPAT_FEATURE(sb, EXT4_FEATURE_INCOMPAT_FILETYPE) ||
+ (filetype >= EXT4_FT_MAX))
return DT_UNKNOWN;
- return (ext3_filetype_table[filetype]);
+ return (ext4_filetype_table[filetype]);
}
-int ext3_check_dir_entry (const char * function, struct inode * dir,
- struct ext3_dir_entry_2 * de,
+int ext4_check_dir_entry (const char * function, struct inode * dir,
+ struct ext4_dir_entry_2 * de,
struct buffer_head * bh,
unsigned long offset)
{
const char * error_msg = NULL;
const int rlen = le16_to_cpu(de->rec_len);
- if (rlen < EXT3_DIR_REC_LEN(1))
+ if (rlen < EXT4_DIR_REC_LEN(1))
error_msg = "rec_len is smaller than minimal";
else if (rlen % 4 != 0)
error_msg = "rec_len % 4 != 0";
- else if (rlen < EXT3_DIR_REC_LEN(de->name_len))
+ else if (rlen < EXT4_DIR_REC_LEN(de->name_len))
error_msg = "rec_len is too small for name_len";
else if (((char *) de - bh->b_data) + rlen > dir->i_sb->s_blocksize)
error_msg = "directory entry across blocks";
else if (le32_to_cpu(de->inode) >
- le32_to_cpu(EXT3_SB(dir->i_sb)->s_es->s_inodes_count))
+ le32_to_cpu(EXT4_SB(dir->i_sb)->s_es->s_inodes_count))
error_msg = "inode out of bounds";
if (error_msg != NULL)
- ext3_error (dir->i_sb, function,
+ ext4_error (dir->i_sb, function,
"bad entry in directory #%lu: %s - "
"offset=%lu, inode=%lu, rec_len=%d, name_len=%d",
dir->i_ino, error_msg, offset,
return error_msg == NULL ? 1 : 0;
}
-static int ext3_readdir(struct file * filp,
+static int ext4_readdir(struct file * filp,
void * dirent, filldir_t filldir)
{
int error = 0;
unsigned long offset;
int i, stored;
- struct ext3_dir_entry_2 *de;
+ struct ext4_dir_entry_2 *de;
struct super_block *sb;
int err;
struct inode *inode = filp->f_dentry->d_inode;
sb = inode->i_sb;
-#ifdef CONFIG_EXT3_INDEX
- if (EXT3_HAS_COMPAT_FEATURE(inode->i_sb,
- EXT3_FEATURE_COMPAT_DIR_INDEX) &&
- ((EXT3_I(inode)->i_flags & EXT3_INDEX_FL) ||
+#ifdef CONFIG_EXT4_INDEX
+ if (EXT4_HAS_COMPAT_FEATURE(inode->i_sb,
+ EXT4_FEATURE_COMPAT_DIR_INDEX) &&
+ ((EXT4_I(inode)->i_flags & EXT4_INDEX_FL) ||
((inode->i_size >> sb->s_blocksize_bits) == 1))) {
- err = ext3_dx_readdir(filp, dirent, filldir);
+ err = ext4_dx_readdir(filp, dirent, filldir);
if (err != ERR_BAD_DX_DIR) {
ret = err;
goto out;
* We don't set the inode dirty flag since it's not
* critical that it get flushed back to the disk.
*/
- EXT3_I(filp->f_dentry->d_inode)->i_flags &= ~EXT3_INDEX_FL;
+ EXT4_I(filp->f_dentry->d_inode)->i_flags &= ~EXT4_INDEX_FL;
}
#endif
stored = 0;
offset = filp->f_pos & (sb->s_blocksize - 1);
while (!error && !stored && filp->f_pos < inode->i_size) {
- unsigned long blk = filp->f_pos >> EXT3_BLOCK_SIZE_BITS(sb);
+ unsigned long blk = filp->f_pos >> EXT4_BLOCK_SIZE_BITS(sb);
struct buffer_head map_bh;
struct buffer_head *bh = NULL;
map_bh.b_state = 0;
- err = ext3_get_blocks_handle(NULL, inode, blk, 1,
+ err = ext4_get_blocks_handle(NULL, inode, blk, 1,
&map_bh, 0, 0);
if (err > 0) {
page_cache_readahead(sb->s_bdev->bd_inode->i_mapping,
map_bh.b_blocknr >>
(PAGE_CACHE_SHIFT - inode->i_blkbits),
1);
- bh = ext3_bread(NULL, inode, blk, 0, &err);
+ bh = ext4_bread(NULL, inode, blk, 0, &err);
}
/*
* of recovering data when there's a bad sector
*/
if (!bh) {
- ext3_error (sb, "ext3_readdir",
+ ext4_error (sb, "ext4_readdir",
"directory #%lu contains a hole at offset %lu",
inode->i_ino, (unsigned long)filp->f_pos);
filp->f_pos += sb->s_blocksize - offset;
* to make sure. */
if (filp->f_version != inode->i_version) {
for (i = 0; i < sb->s_blocksize && i < offset; ) {
- de = (struct ext3_dir_entry_2 *)
+ de = (struct ext4_dir_entry_2 *)
(bh->b_data + i);
/* It's too expensive to do a full
* dirent test each time round this
* failure will be detected in the
* dirent test below. */
if (le16_to_cpu(de->rec_len) <
- EXT3_DIR_REC_LEN(1))
+ EXT4_DIR_REC_LEN(1))
break;
i += le16_to_cpu(de->rec_len);
}
while (!error && filp->f_pos < inode->i_size
&& offset < sb->s_blocksize) {
- de = (struct ext3_dir_entry_2 *) (bh->b_data + offset);
- if (!ext3_check_dir_entry ("ext3_readdir", inode, de,
+ de = (struct ext4_dir_entry_2 *) (bh->b_data + offset);
+ if (!ext4_check_dir_entry ("ext4_readdir", inode, de,
bh, offset)) {
/* On error, skip the f_pos to the
next block. */
return ret;
}
-#ifdef CONFIG_EXT3_INDEX
+#ifdef CONFIG_EXT4_INDEX
/*
* These functions convert from the major/minor hash to an f_pos
* value.
return p;
}
-void ext3_htree_free_dir_info(struct dir_private_info *p)
+void ext4_htree_free_dir_info(struct dir_private_info *p)
{
free_rb_tree_fname(&p->root);
kfree(p);
/*
* Given a directory entry, enter it into the fname rb tree.
*/
-int ext3_htree_store_dirent(struct file *dir_file, __u32 hash,
+int ext4_htree_store_dirent(struct file *dir_file, __u32 hash,
__u32 minor_hash,
- struct ext3_dir_entry_2 *dirent)
+ struct ext4_dir_entry_2 *dirent)
{
struct rb_node **p, *parent = NULL;
struct fname * fname, *new_fn;
/*
- * This is a helper function for ext3_dx_readdir. It calls filldir
+ * This is a helper function for ext4_dx_readdir. It calls filldir
* for all entres on the fname linked list. (Normally there is only
* one entry on the linked list, unless there are 62 bit hash collisions.)
*/
return 0;
}
-static int ext3_dx_readdir(struct file * filp,
+static int ext4_dx_readdir(struct file * filp,
void * dirent, filldir_t filldir)
{
struct dir_private_info *info = filp->private_data;
filp->private_data = info;
}
- if (filp->f_pos == EXT3_HTREE_EOF)
+ if (filp->f_pos == EXT4_HTREE_EOF)
return 0; /* EOF */
/* Some one has messed with f_pos; reset the world */
info->curr_node = NULL;
free_rb_tree_fname(&info->root);
filp->f_version = inode->i_version;
- ret = ext3_htree_fill_tree(filp, info->curr_hash,
+ ret = ext4_htree_fill_tree(filp, info->curr_hash,
info->curr_minor_hash,
&info->next_hash);
if (ret < 0)
return ret;
if (ret == 0) {
- filp->f_pos = EXT3_HTREE_EOF;
+ filp->f_pos = EXT4_HTREE_EOF;
break;
}
info->curr_node = rb_first(&info->root);
info->curr_node = rb_next(info->curr_node);
if (!info->curr_node) {
if (info->next_hash == ~0) {
- filp->f_pos = EXT3_HTREE_EOF;
+ filp->f_pos = EXT4_HTREE_EOF;
break;
}
info->curr_hash = info->next_hash;
return 0;
}
-static int ext3_release_dir (struct inode * inode, struct file * filp)
+static int ext4_release_dir (struct inode * inode, struct file * filp)
{
if (filp->private_data)
- ext3_htree_free_dir_info(filp->private_data);
+ ext4_htree_free_dir_info(filp->private_data);
return 0;
}
/*
- * linux/fs/ext3/file.c
+ * linux/fs/ext4/file.c
*
* Copyright (C) 1992, 1993, 1994, 1995
* Remy Card (card@masi.ibp.fr)
*
* Copyright (C) 1991, 1992 Linus Torvalds
*
- * ext3 fs regular file handling primitives
+ * ext4 fs regular file handling primitives
*
* 64-bit file support on 64-bit platforms by Jakub Jelinek
* (jj@sunsite.ms.mff.cuni.cz)
#include <linux/time.h>
#include <linux/fs.h>
#include <linux/jbd.h>
-#include <linux/ext3_fs.h>
-#include <linux/ext3_jbd.h>
+#include <linux/ext4_fs.h>
+#include <linux/ext4_jbd.h>
#include "xattr.h"
#include "acl.h"
/*
* Called when an inode is released. Note that this is different
- * from ext3_file_open: open gets called at every open, but release
+ * from ext4_file_open: open gets called at every open, but release
* gets called only when /all/ the files are closed.
*/
-static int ext3_release_file (struct inode * inode, struct file * filp)
+static int ext4_release_file (struct inode * inode, struct file * filp)
{
/* if we are the last writer on the inode, drop the block reservation */
if ((filp->f_mode & FMODE_WRITE) &&
(atomic_read(&inode->i_writecount) == 1))
{
- mutex_lock(&EXT3_I(inode)->truncate_mutex);
- ext3_discard_reservation(inode);
- mutex_unlock(&EXT3_I(inode)->truncate_mutex);
+ mutex_lock(&EXT4_I(inode)->truncate_mutex);
+ ext4_discard_reservation(inode);
+ mutex_unlock(&EXT4_I(inode)->truncate_mutex);
}
if (is_dx(inode) && filp->private_data)
- ext3_htree_free_dir_info(filp->private_data);
+ ext4_htree_free_dir_info(filp->private_data);
return 0;
}
static ssize_t
-ext3_file_write(struct kiocb *iocb, const struct iovec *iov,
+ext4_file_write(struct kiocb *iocb, const struct iovec *iov,
unsigned long nr_segs, loff_t pos)
{
struct file *file = iocb->ki_filp;
* Open question --- do we care about flushing timestamps too
* if the inode is IS_SYNC?
*/
- if (!ext3_should_journal_data(inode))
+ if (!ext4_should_journal_data(inode))
return ret;
goto force_commit;
*/
force_commit:
- err = ext3_force_commit(inode->i_sb);
+ err = ext4_force_commit(inode->i_sb);
if (err)
return err;
return ret;
}
-const struct file_operations ext3_file_operations = {
+const struct file_operations ext4_file_operations = {
.llseek = generic_file_llseek,
.read = do_sync_read,
.write = do_sync_write,
.aio_read = generic_file_aio_read,
- .aio_write = ext3_file_write,
- .ioctl = ext3_ioctl,
+ .aio_write = ext4_file_write,
+ .ioctl = ext4_ioctl,
#ifdef CONFIG_COMPAT
- .compat_ioctl = ext3_compat_ioctl,
+ .compat_ioctl = ext4_compat_ioctl,
#endif
.mmap = generic_file_mmap,
.open = generic_file_open,
- .release = ext3_release_file,
- .fsync = ext3_sync_file,
+ .release = ext4_release_file,
+ .fsync = ext4_sync_file,
.sendfile = generic_file_sendfile,
.splice_read = generic_file_splice_read,
.splice_write = generic_file_splice_write,
};
-struct inode_operations ext3_file_inode_operations = {
- .truncate = ext3_truncate,
- .setattr = ext3_setattr,
-#ifdef CONFIG_EXT3_FS_XATTR
+struct inode_operations ext4_file_inode_operations = {
+ .truncate = ext4_truncate,
+ .setattr = ext4_setattr,
+#ifdef CONFIG_EXT4DEV_FS_XATTR
.setxattr = generic_setxattr,
.getxattr = generic_getxattr,
- .listxattr = ext3_listxattr,
+ .listxattr = ext4_listxattr,
.removexattr = generic_removexattr,
#endif
- .permission = ext3_permission,
+ .permission = ext4_permission,
};
/*
- * linux/fs/ext3/fsync.c
+ * linux/fs/ext4/fsync.c
*
* Copyright (C) 1993 Stephen Tweedie (sct@redhat.com)
* from
* from
* linux/fs/minix/truncate.c Copyright (C) 1991, 1992 Linus Torvalds
*
- * ext3fs fsync primitive
+ * ext4fs fsync primitive
*
* Big-endian to little-endian byte-swapping/bitmaps by
* David S. Miller (davem@caip.rutgers.edu), 1995
#include <linux/sched.h>
#include <linux/writeback.h>
#include <linux/jbd.h>
-#include <linux/ext3_fs.h>
-#include <linux/ext3_jbd.h>
+#include <linux/ext4_fs.h>
+#include <linux/ext4_jbd.h>
/*
- * akpm: A new design for ext3_sync_file().
+ * akpm: A new design for ext4_sync_file().
*
* This is only called from sys_fsync(), sys_fdatasync() and sys_msync().
* There cannot be a transaction open by this task.
* inode to disk.
*/
-int ext3_sync_file(struct file * file, struct dentry *dentry, int datasync)
+int ext4_sync_file(struct file * file, struct dentry *dentry, int datasync)
{
struct inode *inode = dentry->d_inode;
int ret = 0;
- J_ASSERT(ext3_journal_current_handle() == 0);
+ J_ASSERT(ext4_journal_current_handle() == 0);
/*
* data=writeback:
*
* data=journal:
* filemap_fdatawrite won't do anything (the buffers are clean).
- * ext3_force_commit will write the file data into the journal and
+ * ext4_force_commit will write the file data into the journal and
* will wait on that.
* filemap_fdatawait() will encounter a ton of newly-dirtied pages
* (they were dirtied by commit). But that's OK - the blocks are
* safe in-journal, which is all fsync() needs to ensure.
*/
- if (ext3_should_journal_data(inode)) {
- ret = ext3_force_commit(inode->i_sb);
+ if (ext4_should_journal_data(inode)) {
+ ret = ext4_force_commit(inode->i_sb);
goto out;
}
/*
- * linux/fs/ext3/hash.c
+ * linux/fs/ext4/hash.c
*
* Copyright (C) 2002 by Theodore Ts'o
*
#include <linux/fs.h>
#include <linux/jbd.h>
#include <linux/sched.h>
-#include <linux/ext3_fs.h>
+#include <linux/ext4_fs.h>
#include <linux/cryptohash.h>
#define DELTA 0x9E3779B9
* represented, and whether or not the returned hash is 32 bits or 64
* bits. 32 bit hashes will return 0 for the minor hash.
*/
-int ext3fs_dirhash(const char *name, int len, struct dx_hash_info *hinfo)
+int ext4fs_dirhash(const char *name, int len, struct dx_hash_info *hinfo)
{
__u32 hash;
__u32 minor_hash = 0;
return -1;
}
hash = hash & ~1;
- if (hash == (EXT3_HTREE_EOF << 1))
- hash = (EXT3_HTREE_EOF-1) << 1;
+ if (hash == (EXT4_HTREE_EOF << 1))
+ hash = (EXT4_HTREE_EOF-1) << 1;
hinfo->hash = hash;
hinfo->minor_hash = minor_hash;
return 0;
/*
- * linux/fs/ext3/ialloc.c
+ * linux/fs/ext4/ialloc.c
*
* Copyright (C) 1992, 1993, 1994, 1995
* Remy Card (card@masi.ibp.fr)
#include <linux/time.h>
#include <linux/fs.h>
#include <linux/jbd.h>
-#include <linux/ext3_fs.h>
-#include <linux/ext3_jbd.h>
+#include <linux/ext4_fs.h>
+#include <linux/ext4_jbd.h>
#include <linux/stat.h>
#include <linux/string.h>
#include <linux/quotaops.h>
static struct buffer_head *
read_inode_bitmap(struct super_block * sb, unsigned long block_group)
{
- struct ext3_group_desc *desc;
+ struct ext4_group_desc *desc;
struct buffer_head *bh = NULL;
- desc = ext3_get_group_desc(sb, block_group, NULL);
+ desc = ext4_get_group_desc(sb, block_group, NULL);
if (!desc)
goto error_out;
bh = sb_bread(sb, le32_to_cpu(desc->bg_inode_bitmap));
if (!bh)
- ext3_error(sb, "read_inode_bitmap",
+ ext4_error(sb, "read_inode_bitmap",
"Cannot read inode bitmap - "
"block_group = %lu, inode_bitmap = %u",
block_group, le32_to_cpu(desc->bg_inode_bitmap));
* though), and then we'd have two inodes sharing the
* same inode number and space on the harddisk.
*/
-void ext3_free_inode (handle_t *handle, struct inode * inode)
+void ext4_free_inode (handle_t *handle, struct inode * inode)
{
struct super_block * sb = inode->i_sb;
int is_directory;
struct buffer_head *bh2;
unsigned long block_group;
unsigned long bit;
- struct ext3_group_desc * gdp;
- struct ext3_super_block * es;
- struct ext3_sb_info *sbi;
+ struct ext4_group_desc * gdp;
+ struct ext4_super_block * es;
+ struct ext4_sb_info *sbi;
int fatal = 0, err;
if (atomic_read(&inode->i_count) > 1) {
- printk ("ext3_free_inode: inode has count=%d\n",
+ printk ("ext4_free_inode: inode has count=%d\n",
atomic_read(&inode->i_count));
return;
}
if (inode->i_nlink) {
- printk ("ext3_free_inode: inode has nlink=%d\n",
+ printk ("ext4_free_inode: inode has nlink=%d\n",
inode->i_nlink);
return;
}
if (!sb) {
- printk("ext3_free_inode: inode on nonexistent device\n");
+ printk("ext4_free_inode: inode on nonexistent device\n");
return;
}
- sbi = EXT3_SB(sb);
+ sbi = EXT4_SB(sb);
ino = inode->i_ino;
- ext3_debug ("freeing inode %lu\n", ino);
+ ext4_debug ("freeing inode %lu\n", ino);
/*
* Note: we must free any quota before locking the superblock,
* as writing the quota to disk may need the lock as well.
*/
DQUOT_INIT(inode);
- ext3_xattr_delete_inode(handle, inode);
+ ext4_xattr_delete_inode(handle, inode);
DQUOT_FREE_INODE(inode);
DQUOT_DROP(inode);
/* Do this BEFORE marking the inode not in use or returning an error */
clear_inode (inode);
- es = EXT3_SB(sb)->s_es;
- if (ino < EXT3_FIRST_INO(sb) || ino > le32_to_cpu(es->s_inodes_count)) {
- ext3_error (sb, "ext3_free_inode",
+ es = EXT4_SB(sb)->s_es;
+ if (ino < EXT4_FIRST_INO(sb) || ino > le32_to_cpu(es->s_inodes_count)) {
+ ext4_error (sb, "ext4_free_inode",
"reserved or nonexistent inode %lu", ino);
goto error_return;
}
- block_group = (ino - 1) / EXT3_INODES_PER_GROUP(sb);
- bit = (ino - 1) % EXT3_INODES_PER_GROUP(sb);
+ block_group = (ino - 1) / EXT4_INODES_PER_GROUP(sb);
+ bit = (ino - 1) % EXT4_INODES_PER_GROUP(sb);
bitmap_bh = read_inode_bitmap(sb, block_group);
if (!bitmap_bh)
goto error_return;
BUFFER_TRACE(bitmap_bh, "get_write_access");
- fatal = ext3_journal_get_write_access(handle, bitmap_bh);
+ fatal = ext4_journal_get_write_access(handle, bitmap_bh);
if (fatal)
goto error_return;
/* Ok, now we can actually update the inode bitmaps.. */
- if (!ext3_clear_bit_atomic(sb_bgl_lock(sbi, block_group),
+ if (!ext4_clear_bit_atomic(sb_bgl_lock(sbi, block_group),
bit, bitmap_bh->b_data))
- ext3_error (sb, "ext3_free_inode",
+ ext4_error (sb, "ext4_free_inode",
"bit already cleared for inode %lu", ino);
else {
- gdp = ext3_get_group_desc (sb, block_group, &bh2);
+ gdp = ext4_get_group_desc (sb, block_group, &bh2);
BUFFER_TRACE(bh2, "get_write_access");
- fatal = ext3_journal_get_write_access(handle, bh2);
+ fatal = ext4_journal_get_write_access(handle, bh2);
if (fatal) goto error_return;
if (gdp) {
percpu_counter_dec(&sbi->s_dirs_counter);
}
- BUFFER_TRACE(bh2, "call ext3_journal_dirty_metadata");
- err = ext3_journal_dirty_metadata(handle, bh2);
+ BUFFER_TRACE(bh2, "call ext4_journal_dirty_metadata");
+ err = ext4_journal_dirty_metadata(handle, bh2);
if (!fatal) fatal = err;
}
- BUFFER_TRACE(bitmap_bh, "call ext3_journal_dirty_metadata");
- err = ext3_journal_dirty_metadata(handle, bitmap_bh);
+ BUFFER_TRACE(bitmap_bh, "call ext4_journal_dirty_metadata");
+ err = ext4_journal_dirty_metadata(handle, bitmap_bh);
if (!fatal)
fatal = err;
sb->s_dirt = 1;
error_return:
brelse(bitmap_bh);
- ext3_std_error(sb, fatal);
+ ext4_std_error(sb, fatal);
}
/*
*/
static int find_group_dir(struct super_block *sb, struct inode *parent)
{
- int ngroups = EXT3_SB(sb)->s_groups_count;
+ int ngroups = EXT4_SB(sb)->s_groups_count;
unsigned int freei, avefreei;
- struct ext3_group_desc *desc, *best_desc = NULL;
+ struct ext4_group_desc *desc, *best_desc = NULL;
struct buffer_head *bh;
int group, best_group = -1;
- freei = percpu_counter_read_positive(&EXT3_SB(sb)->s_freeinodes_counter);
+ freei = percpu_counter_read_positive(&EXT4_SB(sb)->s_freeinodes_counter);
avefreei = freei / ngroups;
for (group = 0; group < ngroups; group++) {
- desc = ext3_get_group_desc (sb, group, &bh);
+ desc = ext4_get_group_desc (sb, group, &bh);
if (!desc || !desc->bg_free_inodes_count)
continue;
if (le16_to_cpu(desc->bg_free_inodes_count) < avefreei)
static int find_group_orlov(struct super_block *sb, struct inode *parent)
{
- int parent_group = EXT3_I(parent)->i_block_group;
- struct ext3_sb_info *sbi = EXT3_SB(sb);
- struct ext3_super_block *es = sbi->s_es;
+ int parent_group = EXT4_I(parent)->i_block_group;
+ struct ext4_sb_info *sbi = EXT4_SB(sb);
+ struct ext4_super_block *es = sbi->s_es;
int ngroups = sbi->s_groups_count;
- int inodes_per_group = EXT3_INODES_PER_GROUP(sb);
+ int inodes_per_group = EXT4_INODES_PER_GROUP(sb);
unsigned int freei, avefreei;
- ext3_fsblk_t freeb, avefreeb;
- ext3_fsblk_t blocks_per_dir;
+ ext4_fsblk_t freeb, avefreeb;
+ ext4_fsblk_t blocks_per_dir;
unsigned int ndirs;
int max_debt, max_dirs, min_inodes;
- ext3_grpblk_t min_blocks;
+ ext4_grpblk_t min_blocks;
int group = -1, i;
- struct ext3_group_desc *desc;
+ struct ext4_group_desc *desc;
struct buffer_head *bh;
freei = percpu_counter_read_positive(&sbi->s_freeinodes_counter);
ndirs = percpu_counter_read_positive(&sbi->s_dirs_counter);
if ((parent == sb->s_root->d_inode) ||
- (EXT3_I(parent)->i_flags & EXT3_TOPDIR_FL)) {
+ (EXT4_I(parent)->i_flags & EXT4_TOPDIR_FL)) {
int best_ndir = inodes_per_group;
int best_group = -1;
parent_group = (unsigned)group % ngroups;
for (i = 0; i < ngroups; i++) {
group = (parent_group + i) % ngroups;
- desc = ext3_get_group_desc (sb, group, &bh);
+ desc = ext4_get_group_desc (sb, group, &bh);
if (!desc || !desc->bg_free_inodes_count)
continue;
if (le16_to_cpu(desc->bg_used_dirs_count) >= best_ndir)
max_dirs = ndirs / ngroups + inodes_per_group / 16;
min_inodes = avefreei - inodes_per_group / 4;
- min_blocks = avefreeb - EXT3_BLOCKS_PER_GROUP(sb) / 4;
+ min_blocks = avefreeb - EXT4_BLOCKS_PER_GROUP(sb) / 4;
- max_debt = EXT3_BLOCKS_PER_GROUP(sb) / max(blocks_per_dir, (ext3_fsblk_t)BLOCK_COST);
+ max_debt = EXT4_BLOCKS_PER_GROUP(sb) / max(blocks_per_dir, (ext4_fsblk_t)BLOCK_COST);
if (max_debt * INODE_COST > inodes_per_group)
max_debt = inodes_per_group / INODE_COST;
if (max_debt > 255)
for (i = 0; i < ngroups; i++) {
group = (parent_group + i) % ngroups;
- desc = ext3_get_group_desc (sb, group, &bh);
+ desc = ext4_get_group_desc (sb, group, &bh);
if (!desc || !desc->bg_free_inodes_count)
continue;
if (le16_to_cpu(desc->bg_used_dirs_count) >= max_dirs)
fallback:
for (i = 0; i < ngroups; i++) {
group = (parent_group + i) % ngroups;
- desc = ext3_get_group_desc (sb, group, &bh);
+ desc = ext4_get_group_desc (sb, group, &bh);
if (!desc || !desc->bg_free_inodes_count)
continue;
if (le16_to_cpu(desc->bg_free_inodes_count) >= avefreei)
static int find_group_other(struct super_block *sb, struct inode *parent)
{
- int parent_group = EXT3_I(parent)->i_block_group;
- int ngroups = EXT3_SB(sb)->s_groups_count;
- struct ext3_group_desc *desc;
+ int parent_group = EXT4_I(parent)->i_block_group;
+ int ngroups = EXT4_SB(sb)->s_groups_count;
+ struct ext4_group_desc *desc;
struct buffer_head *bh;
int group, i;
* Try to place the inode in its parent directory
*/
group = parent_group;
- desc = ext3_get_group_desc (sb, group, &bh);
+ desc = ext4_get_group_desc (sb, group, &bh);
if (desc && le16_to_cpu(desc->bg_free_inodes_count) &&
le16_to_cpu(desc->bg_free_blocks_count))
return group;
group += i;
if (group >= ngroups)
group -= ngroups;
- desc = ext3_get_group_desc (sb, group, &bh);
+ desc = ext4_get_group_desc (sb, group, &bh);
if (desc && le16_to_cpu(desc->bg_free_inodes_count) &&
le16_to_cpu(desc->bg_free_blocks_count))
return group;
for (i = 0; i < ngroups; i++) {
if (++group >= ngroups)
group = 0;
- desc = ext3_get_group_desc (sb, group, &bh);
+ desc = ext4_get_group_desc (sb, group, &bh);
if (desc && le16_to_cpu(desc->bg_free_inodes_count))
return group;
}
* For other inodes, search forward from the parent directory's block
* group to find a free inode.
*/
-struct inode *ext3_new_inode(handle_t *handle, struct inode * dir, int mode)
+struct inode *ext4_new_inode(handle_t *handle, struct inode * dir, int mode)
{
struct super_block *sb;
struct buffer_head *bitmap_bh = NULL;
int group;
unsigned long ino = 0;
struct inode * inode;
- struct ext3_group_desc * gdp = NULL;
- struct ext3_super_block * es;
- struct ext3_inode_info *ei;
- struct ext3_sb_info *sbi;
+ struct ext4_group_desc * gdp = NULL;
+ struct ext4_super_block * es;
+ struct ext4_inode_info *ei;
+ struct ext4_sb_info *sbi;
int err = 0;
struct inode *ret;
int i;
inode = new_inode(sb);
if (!inode)
return ERR_PTR(-ENOMEM);
- ei = EXT3_I(inode);
+ ei = EXT4_I(inode);
- sbi = EXT3_SB(sb);
+ sbi = EXT4_SB(sb);
es = sbi->s_es;
if (S_ISDIR(mode)) {
if (test_opt (sb, OLDALLOC))
for (i = 0; i < sbi->s_groups_count; i++) {
err = -EIO;
- gdp = ext3_get_group_desc(sb, group, &bh2);
+ gdp = ext4_get_group_desc(sb, group, &bh2);
if (!gdp)
goto fail;
ino = 0;
repeat_in_this_group:
- ino = ext3_find_next_zero_bit((unsigned long *)
- bitmap_bh->b_data, EXT3_INODES_PER_GROUP(sb), ino);
- if (ino < EXT3_INODES_PER_GROUP(sb)) {
+ ino = ext4_find_next_zero_bit((unsigned long *)
+ bitmap_bh->b_data, EXT4_INODES_PER_GROUP(sb), ino);
+ if (ino < EXT4_INODES_PER_GROUP(sb)) {
BUFFER_TRACE(bitmap_bh, "get_write_access");
- err = ext3_journal_get_write_access(handle, bitmap_bh);
+ err = ext4_journal_get_write_access(handle, bitmap_bh);
if (err)
goto fail;
- if (!ext3_set_bit_atomic(sb_bgl_lock(sbi, group),
+ if (!ext4_set_bit_atomic(sb_bgl_lock(sbi, group),
ino, bitmap_bh->b_data)) {
/* we won it */
BUFFER_TRACE(bitmap_bh,
- "call ext3_journal_dirty_metadata");
- err = ext3_journal_dirty_metadata(handle,
+ "call ext4_journal_dirty_metadata");
+ err = ext4_journal_dirty_metadata(handle,
bitmap_bh);
if (err)
goto fail;
/* we lost it */
journal_release_buffer(handle, bitmap_bh);
- if (++ino < EXT3_INODES_PER_GROUP(sb))
+ if (++ino < EXT4_INODES_PER_GROUP(sb))
goto repeat_in_this_group;
}
goto out;
got:
- ino += group * EXT3_INODES_PER_GROUP(sb) + 1;
- if (ino < EXT3_FIRST_INO(sb) || ino > le32_to_cpu(es->s_inodes_count)) {
- ext3_error (sb, "ext3_new_inode",
+ ino += group * EXT4_INODES_PER_GROUP(sb) + 1;
+ if (ino < EXT4_FIRST_INO(sb) || ino > le32_to_cpu(es->s_inodes_count)) {
+ ext4_error (sb, "ext4_new_inode",
"reserved inode or inode > inodes count - "
"block_group = %d, inode=%lu", group, ino);
err = -EIO;
}
BUFFER_TRACE(bh2, "get_write_access");
- err = ext3_journal_get_write_access(handle, bh2);
+ err = ext4_journal_get_write_access(handle, bh2);
if (err) goto fail;
spin_lock(sb_bgl_lock(sbi, group));
gdp->bg_free_inodes_count =
cpu_to_le16(le16_to_cpu(gdp->bg_used_dirs_count) + 1);
}
spin_unlock(sb_bgl_lock(sbi, group));
- BUFFER_TRACE(bh2, "call ext3_journal_dirty_metadata");
- err = ext3_journal_dirty_metadata(handle, bh2);
+ BUFFER_TRACE(bh2, "call ext4_journal_dirty_metadata");
+ err = ext4_journal_dirty_metadata(handle, bh2);
if (err) goto fail;
percpu_counter_dec(&sbi->s_freeinodes_counter);
ei->i_dir_start_lookup = 0;
ei->i_disksize = 0;
- ei->i_flags = EXT3_I(dir)->i_flags & ~EXT3_INDEX_FL;
+ ei->i_flags = EXT4_I(dir)->i_flags & ~EXT4_INDEX_FL;
if (S_ISLNK(mode))
- ei->i_flags &= ~(EXT3_IMMUTABLE_FL|EXT3_APPEND_FL);
+ ei->i_flags &= ~(EXT4_IMMUTABLE_FL|EXT4_APPEND_FL);
/* dirsync only applies to directories */
if (!S_ISDIR(mode))
- ei->i_flags &= ~EXT3_DIRSYNC_FL;
-#ifdef EXT3_FRAGMENTS
+ ei->i_flags &= ~EXT4_DIRSYNC_FL;
+#ifdef EXT4_FRAGMENTS
ei->i_faddr = 0;
ei->i_frag_no = 0;
ei->i_frag_size = 0;
ei->i_block_alloc_info = NULL;
ei->i_block_group = group;
- ext3_set_inode_flags(inode);
+ ext4_set_inode_flags(inode);
if (IS_DIRSYNC(inode))
handle->h_sync = 1;
insert_inode_hash(inode);
inode->i_generation = sbi->s_next_generation++;
spin_unlock(&sbi->s_next_gen_lock);
- ei->i_state = EXT3_STATE_NEW;
+ ei->i_state = EXT4_STATE_NEW;
ei->i_extra_isize =
- (EXT3_INODE_SIZE(inode->i_sb) > EXT3_GOOD_OLD_INODE_SIZE) ?
- sizeof(struct ext3_inode) - EXT3_GOOD_OLD_INODE_SIZE : 0;
+ (EXT4_INODE_SIZE(inode->i_sb) > EXT4_GOOD_OLD_INODE_SIZE) ?
+ sizeof(struct ext4_inode) - EXT4_GOOD_OLD_INODE_SIZE : 0;
ret = inode;
if(DQUOT_ALLOC_INODE(inode)) {
goto fail_drop;
}
- err = ext3_init_acl(handle, inode, dir);
+ err = ext4_init_acl(handle, inode, dir);
if (err)
goto fail_free_drop;
- err = ext3_init_security(handle,inode, dir);
+ err = ext4_init_security(handle,inode, dir);
if (err)
goto fail_free_drop;
- err = ext3_mark_inode_dirty(handle, inode);
+ err = ext4_mark_inode_dirty(handle, inode);
if (err) {
- ext3_std_error(sb, err);
+ ext4_std_error(sb, err);
goto fail_free_drop;
}
- ext3_debug("allocating inode %lu\n", inode->i_ino);
+ ext4_debug("allocating inode %lu\n", inode->i_ino);
goto really_out;
fail:
- ext3_std_error(sb, err);
+ ext4_std_error(sb, err);
out:
iput(inode);
ret = ERR_PTR(err);
}
/* Verify that we are loading a valid orphan from disk */
-struct inode *ext3_orphan_get(struct super_block *sb, unsigned long ino)
+struct inode *ext4_orphan_get(struct super_block *sb, unsigned long ino)
{
- unsigned long max_ino = le32_to_cpu(EXT3_SB(sb)->s_es->s_inodes_count);
+ unsigned long max_ino = le32_to_cpu(EXT4_SB(sb)->s_es->s_inodes_count);
unsigned long block_group;
int bit;
struct buffer_head *bitmap_bh = NULL;
/* Error cases - e2fsck has already cleaned up for us */
if (ino > max_ino) {
- ext3_warning(sb, __FUNCTION__,
+ ext4_warning(sb, __FUNCTION__,
"bad orphan ino %lu! e2fsck was run?", ino);
goto out;
}
- block_group = (ino - 1) / EXT3_INODES_PER_GROUP(sb);
- bit = (ino - 1) % EXT3_INODES_PER_GROUP(sb);
+ block_group = (ino - 1) / EXT4_INODES_PER_GROUP(sb);
+ bit = (ino - 1) % EXT4_INODES_PER_GROUP(sb);
bitmap_bh = read_inode_bitmap(sb, block_group);
if (!bitmap_bh) {
- ext3_warning(sb, __FUNCTION__,
+ ext4_warning(sb, __FUNCTION__,
"inode bitmap error for orphan %lu", ino);
goto out;
}
* is a valid orphan (no e2fsck run on fs). Orphans also include
* inodes that were being truncated, so we can't check i_nlink==0.
*/
- if (!ext3_test_bit(bit, bitmap_bh->b_data) ||
+ if (!ext4_test_bit(bit, bitmap_bh->b_data) ||
!(inode = iget(sb, ino)) || is_bad_inode(inode) ||
NEXT_ORPHAN(inode) > max_ino) {
- ext3_warning(sb, __FUNCTION__,
+ ext4_warning(sb, __FUNCTION__,
"bad orphan inode %lu! e2fsck was run?", ino);
- printk(KERN_NOTICE "ext3_test_bit(bit=%d, block=%llu) = %d\n",
+ printk(KERN_NOTICE "ext4_test_bit(bit=%d, block=%llu) = %d\n",
bit, (unsigned long long)bitmap_bh->b_blocknr,
- ext3_test_bit(bit, bitmap_bh->b_data));
+ ext4_test_bit(bit, bitmap_bh->b_data));
printk(KERN_NOTICE "inode=%p\n", inode);
if (inode) {
printk(KERN_NOTICE "is_bad_inode(inode)=%d\n",
return inode;
}
-unsigned long ext3_count_free_inodes (struct super_block * sb)
+unsigned long ext4_count_free_inodes (struct super_block * sb)
{
unsigned long desc_count;
- struct ext3_group_desc *gdp;
+ struct ext4_group_desc *gdp;
int i;
-#ifdef EXT3FS_DEBUG
- struct ext3_super_block *es;
+#ifdef EXT4FS_DEBUG
+ struct ext4_super_block *es;
unsigned long bitmap_count, x;
struct buffer_head *bitmap_bh = NULL;
- es = EXT3_SB(sb)->s_es;
+ es = EXT4_SB(sb)->s_es;
desc_count = 0;
bitmap_count = 0;
gdp = NULL;
- for (i = 0; i < EXT3_SB(sb)->s_groups_count; i++) {
- gdp = ext3_get_group_desc (sb, i, NULL);
+ for (i = 0; i < EXT4_SB(sb)->s_groups_count; i++) {
+ gdp = ext4_get_group_desc (sb, i, NULL);
if (!gdp)
continue;
desc_count += le16_to_cpu(gdp->bg_free_inodes_count);
if (!bitmap_bh)
continue;
- x = ext3_count_free(bitmap_bh, EXT3_INODES_PER_GROUP(sb) / 8);
+ x = ext4_count_free(bitmap_bh, EXT4_INODES_PER_GROUP(sb) / 8);
printk("group %d: stored = %d, counted = %lu\n",
i, le16_to_cpu(gdp->bg_free_inodes_count), x);
bitmap_count += x;
}
brelse(bitmap_bh);
- printk("ext3_count_free_inodes: stored = %u, computed = %lu, %lu\n",
+ printk("ext4_count_free_inodes: stored = %u, computed = %lu, %lu\n",
le32_to_cpu(es->s_free_inodes_count), desc_count, bitmap_count);
return desc_count;
#else
desc_count = 0;
- for (i = 0; i < EXT3_SB(sb)->s_groups_count; i++) {
- gdp = ext3_get_group_desc (sb, i, NULL);
+ for (i = 0; i < EXT4_SB(sb)->s_groups_count; i++) {
+ gdp = ext4_get_group_desc (sb, i, NULL);
if (!gdp)
continue;
desc_count += le16_to_cpu(gdp->bg_free_inodes_count);
}
/* Called at mount-time, super-block is locked */
-unsigned long ext3_count_dirs (struct super_block * sb)
+unsigned long ext4_count_dirs (struct super_block * sb)
{
unsigned long count = 0;
int i;
- for (i = 0; i < EXT3_SB(sb)->s_groups_count; i++) {
- struct ext3_group_desc *gdp = ext3_get_group_desc (sb, i, NULL);
+ for (i = 0; i < EXT4_SB(sb)->s_groups_count; i++) {
+ struct ext4_group_desc *gdp = ext4_get_group_desc (sb, i, NULL);
if (!gdp)
continue;
count += le16_to_cpu(gdp->bg_used_dirs_count);
/*
- * linux/fs/ext3/inode.c
+ * linux/fs/ext4/inode.c
*
* Copyright (C) 1992, 1993, 1994, 1995
* Remy Card (card@masi.ibp.fr)
* 64-bit file support on 64-bit platforms by Jakub Jelinek
* (jj@sunsite.ms.mff.cuni.cz)
*
- * Assorted race fixes, rewrite of ext3_get_block() by Al Viro, 2000
+ * Assorted race fixes, rewrite of ext4_get_block() by Al Viro, 2000
*/
#include <linux/module.h>
#include <linux/fs.h>
#include <linux/time.h>
-#include <linux/ext3_jbd.h>
+#include <linux/ext4_jbd.h>
#include <linux/jbd.h>
#include <linux/smp_lock.h>
#include <linux/highuid.h>
#include "xattr.h"
#include "acl.h"
-static int ext3_writepage_trans_blocks(struct inode *inode);
+static int ext4_writepage_trans_blocks(struct inode *inode);
/*
* Test whether an inode is a fast symlink.
*/
-static int ext3_inode_is_fast_symlink(struct inode *inode)
+static int ext4_inode_is_fast_symlink(struct inode *inode)
{
- int ea_blocks = EXT3_I(inode)->i_file_acl ?
+ int ea_blocks = EXT4_I(inode)->i_file_acl ?
(inode->i_sb->s_blocksize >> 9) : 0;
return (S_ISLNK(inode->i_mode) && inode->i_blocks - ea_blocks == 0);
}
/*
- * The ext3 forget function must perform a revoke if we are freeing data
+ * The ext4 forget function must perform a revoke if we are freeing data
* which has been journaled. Metadata (eg. indirect blocks) must be
* revoked in all cases.
*
* but there may still be a record of it in the journal, and that record
* still needs to be revoked.
*/
-int ext3_forget(handle_t *handle, int is_metadata, struct inode *inode,
- struct buffer_head *bh, ext3_fsblk_t blocknr)
+int ext4_forget(handle_t *handle, int is_metadata, struct inode *inode,
+ struct buffer_head *bh, ext4_fsblk_t blocknr)
{
int err;
* support it. Otherwise, only skip the revoke on un-journaled
* data blocks. */
- if (test_opt(inode->i_sb, DATA_FLAGS) == EXT3_MOUNT_JOURNAL_DATA ||
- (!is_metadata && !ext3_should_journal_data(inode))) {
+ if (test_opt(inode->i_sb, DATA_FLAGS) == EXT4_MOUNT_JOURNAL_DATA ||
+ (!is_metadata && !ext4_should_journal_data(inode))) {
if (bh) {
BUFFER_TRACE(bh, "call journal_forget");
- return ext3_journal_forget(handle, bh);
+ return ext4_journal_forget(handle, bh);
}
return 0;
}
/*
* data!=journal && (is_metadata || should_journal_data(inode))
*/
- BUFFER_TRACE(bh, "call ext3_journal_revoke");
- err = ext3_journal_revoke(handle, blocknr, bh);
+ BUFFER_TRACE(bh, "call ext4_journal_revoke");
+ err = ext4_journal_revoke(handle, blocknr, bh);
if (err)
- ext3_abort(inode->i_sb, __FUNCTION__,
+ ext4_abort(inode->i_sb, __FUNCTION__,
"error %d when attempting revoke", err);
BUFFER_TRACE(bh, "exit");
return err;
/* Give ourselves just enough room to cope with inodes in which
* i_blocks is corrupt: we've seen disk corruptions in the past
* which resulted in random data in an inode which looked enough
- * like a regular file for ext3 to try to delete it. Things
+ * like a regular file for ext4 to try to delete it. Things
* will go a bit crazy if that happens, but at least we should
* try not to panic the whole kernel. */
if (needed < 2)
/* But we need to bound the transaction so we don't overflow the
* journal. */
- if (needed > EXT3_MAX_TRANS_DATA)
- needed = EXT3_MAX_TRANS_DATA;
+ if (needed > EXT4_MAX_TRANS_DATA)
+ needed = EXT4_MAX_TRANS_DATA;
- return EXT3_DATA_TRANS_BLOCKS(inode->i_sb) + needed;
+ return EXT4_DATA_TRANS_BLOCKS(inode->i_sb) + needed;
}
/*
{
handle_t *result;
- result = ext3_journal_start(inode, blocks_for_truncate(inode));
+ result = ext4_journal_start(inode, blocks_for_truncate(inode));
if (!IS_ERR(result))
return result;
- ext3_std_error(inode->i_sb, PTR_ERR(result));
+ ext4_std_error(inode->i_sb, PTR_ERR(result));
return result;
}
*/
static int try_to_extend_transaction(handle_t *handle, struct inode *inode)
{
- if (handle->h_buffer_credits > EXT3_RESERVE_TRANS_BLOCKS)
+ if (handle->h_buffer_credits > EXT4_RESERVE_TRANS_BLOCKS)
return 0;
- if (!ext3_journal_extend(handle, blocks_for_truncate(inode)))
+ if (!ext4_journal_extend(handle, blocks_for_truncate(inode)))
return 0;
return 1;
}
* so before we call here everything must be consistently dirtied against
* this transaction.
*/
-static int ext3_journal_test_restart(handle_t *handle, struct inode *inode)
+static int ext4_journal_test_restart(handle_t *handle, struct inode *inode)
{
jbd_debug(2, "restarting handle %p\n", handle);
- return ext3_journal_restart(handle, blocks_for_truncate(inode));
+ return ext4_journal_restart(handle, blocks_for_truncate(inode));
}
/*
* Called at the last iput() if i_nlink is zero.
*/
-void ext3_delete_inode (struct inode * inode)
+void ext4_delete_inode (struct inode * inode)
{
handle_t *handle;
* make sure that the in-core orphan linked list is properly
* cleaned up.
*/
- ext3_orphan_del(NULL, inode);
+ ext4_orphan_del(NULL, inode);
goto no_delete;
}
handle->h_sync = 1;
inode->i_size = 0;
if (inode->i_blocks)
- ext3_truncate(inode);
+ ext4_truncate(inode);
/*
- * Kill off the orphan record which ext3_truncate created.
+ * Kill off the orphan record which ext4_truncate created.
* AKPM: I think this can be inside the above `if'.
- * Note that ext3_orphan_del() has to be able to cope with the
+ * Note that ext4_orphan_del() has to be able to cope with the
* deletion of a non-existent orphan - this is because we don't
- * know if ext3_truncate() actually created an orphan record.
+ * know if ext4_truncate() actually created an orphan record.
* (Well, we could do this if we need to, but heck - it works)
*/
- ext3_orphan_del(handle, inode);
- EXT3_I(inode)->i_dtime = get_seconds();
+ ext4_orphan_del(handle, inode);
+ EXT4_I(inode)->i_dtime = get_seconds();
/*
* One subtle ordering requirement: if anything has gone wrong
* having errors), but we can't free the inode if the mark_dirty
* fails.
*/
- if (ext3_mark_inode_dirty(handle, inode))
+ if (ext4_mark_inode_dirty(handle, inode))
/* If that failed, just do the required in-core inode clear. */
clear_inode(inode);
else
- ext3_free_inode(handle, inode);
- ext3_journal_stop(handle);
+ ext4_free_inode(handle, inode);
+ ext4_journal_stop(handle);
return;
no_delete:
clear_inode(inode); /* We must guarantee clearing of inode... */
}
/**
- * ext3_block_to_path - parse the block number into array of offsets
+ * ext4_block_to_path - parse the block number into array of offsets
* @inode: inode in question (we are only interested in its superblock)
* @i_block: block number to be parsed
* @offsets: array to store the offsets in
* @boundary: set this non-zero if the referred-to block is likely to be
* followed (on disk) by an indirect block.
*
- * To store the locations of file's data ext3 uses a data structure common
+ * To store the locations of file's data ext4 uses a data structure common
* for UNIX filesystems - tree of pointers anchored in the inode, with
* data blocks at leaves and indirect blocks in intermediate nodes.
* This function translates the block number into path in that tree -
* get there at all.
*/
-static int ext3_block_to_path(struct inode *inode,
+static int ext4_block_to_path(struct inode *inode,
long i_block, int offsets[4], int *boundary)
{
- int ptrs = EXT3_ADDR_PER_BLOCK(inode->i_sb);
- int ptrs_bits = EXT3_ADDR_PER_BLOCK_BITS(inode->i_sb);
- const long direct_blocks = EXT3_NDIR_BLOCKS,
+ int ptrs = EXT4_ADDR_PER_BLOCK(inode->i_sb);
+ int ptrs_bits = EXT4_ADDR_PER_BLOCK_BITS(inode->i_sb);
+ const long direct_blocks = EXT4_NDIR_BLOCKS,
indirect_blocks = ptrs,
double_blocks = (1 << (ptrs_bits * 2));
int n = 0;
int final = 0;
if (i_block < 0) {
- ext3_warning (inode->i_sb, "ext3_block_to_path", "block < 0");
+ ext4_warning (inode->i_sb, "ext4_block_to_path", "block < 0");
} else if (i_block < direct_blocks) {
offsets[n++] = i_block;
final = direct_blocks;
} else if ( (i_block -= direct_blocks) < indirect_blocks) {
- offsets[n++] = EXT3_IND_BLOCK;
+ offsets[n++] = EXT4_IND_BLOCK;
offsets[n++] = i_block;
final = ptrs;
} else if ((i_block -= indirect_blocks) < double_blocks) {
- offsets[n++] = EXT3_DIND_BLOCK;
+ offsets[n++] = EXT4_DIND_BLOCK;
offsets[n++] = i_block >> ptrs_bits;
offsets[n++] = i_block & (ptrs - 1);
final = ptrs;
} else if (((i_block -= double_blocks) >> (ptrs_bits * 2)) < ptrs) {
- offsets[n++] = EXT3_TIND_BLOCK;
+ offsets[n++] = EXT4_TIND_BLOCK;
offsets[n++] = i_block >> (ptrs_bits * 2);
offsets[n++] = (i_block >> ptrs_bits) & (ptrs - 1);
offsets[n++] = i_block & (ptrs - 1);
final = ptrs;
} else {
- ext3_warning(inode->i_sb, "ext3_block_to_path", "block > big");
+ ext4_warning(inode->i_sb, "ext4_block_to_path", "block > big");
}
if (boundary)
*boundary = final - 1 - (i_block & (ptrs - 1));
}
/**
- * ext3_get_branch - read the chain of indirect blocks leading to data
+ * ext4_get_branch - read the chain of indirect blocks leading to data
* @inode: inode in question
* @depth: depth of the chain (1 - direct pointer, etc.)
* @offsets: offsets of pointers in inode/indirect blocks
* or when it reads all @depth-1 indirect blocks successfully and finds
* the whole chain, all way to the data (returns %NULL, *err == 0).
*/
-static Indirect *ext3_get_branch(struct inode *inode, int depth, int *offsets,
+static Indirect *ext4_get_branch(struct inode *inode, int depth, int *offsets,
Indirect chain[4], int *err)
{
struct super_block *sb = inode->i_sb;
*err = 0;
/* i_data is not going away, no lock needed */
- add_chain (chain, NULL, EXT3_I(inode)->i_data + *offsets);
+ add_chain (chain, NULL, EXT4_I(inode)->i_data + *offsets);
if (!p->key)
goto no_block;
while (--depth) {
}
/**
- * ext3_find_near - find a place for allocation with sufficient locality
+ * ext4_find_near - find a place for allocation with sufficient locality
* @inode: owner
* @ind: descriptor of indirect block.
*
*
* Caller must make sure that @ind is valid and will stay that way.
*/
-static ext3_fsblk_t ext3_find_near(struct inode *inode, Indirect *ind)
+static ext4_fsblk_t ext4_find_near(struct inode *inode, Indirect *ind)
{
- struct ext3_inode_info *ei = EXT3_I(inode);
+ struct ext4_inode_info *ei = EXT4_I(inode);
__le32 *start = ind->bh ? (__le32*) ind->bh->b_data : ei->i_data;
__le32 *p;
- ext3_fsblk_t bg_start;
- ext3_grpblk_t colour;
+ ext4_fsblk_t bg_start;
+ ext4_grpblk_t colour;
/* Try to find previous block */
for (p = ind->p - 1; p >= start; p--) {
* It is going to be referred to from the inode itself? OK, just put it
* into the same cylinder group then.
*/
- bg_start = ext3_group_first_block_no(inode->i_sb, ei->i_block_group);
+ bg_start = ext4_group_first_block_no(inode->i_sb, ei->i_block_group);
colour = (current->pid % 16) *
- (EXT3_BLOCKS_PER_GROUP(inode->i_sb) / 16);
+ (EXT4_BLOCKS_PER_GROUP(inode->i_sb) / 16);
return bg_start + colour;
}
/**
- * ext3_find_goal - find a prefered place for allocation.
+ * ext4_find_goal - find a prefered place for allocation.
* @inode: owner
* @block: block we want
* @chain: chain of indirect blocks
* stores it in *@goal and returns zero.
*/
-static ext3_fsblk_t ext3_find_goal(struct inode *inode, long block,
+static ext4_fsblk_t ext4_find_goal(struct inode *inode, long block,
Indirect chain[4], Indirect *partial)
{
- struct ext3_block_alloc_info *block_i;
+ struct ext4_block_alloc_info *block_i;
- block_i = EXT3_I(inode)->i_block_alloc_info;
+ block_i = EXT4_I(inode)->i_block_alloc_info;
/*
* try the heuristic for sequential allocation,
return block_i->last_alloc_physical_block + 1;
}
- return ext3_find_near(inode, partial);
+ return ext4_find_near(inode, partial);
}
/**
- * ext3_blks_to_allocate: Look up the block map and count the number
+ * ext4_blks_to_allocate: Look up the block map and count the number
* of direct blocks need to be allocated for the given branch.
*
* @branch: chain of indirect blocks
* return the total number of blocks to be allocate, including the
* direct and indirect blocks.
*/
-static int ext3_blks_to_allocate(Indirect *branch, int k, unsigned long blks,
+static int ext4_blks_to_allocate(Indirect *branch, int k, unsigned long blks,
int blocks_to_boundary)
{
unsigned long count = 0;
}
/**
- * ext3_alloc_blocks: multiple allocate blocks needed for a branch
+ * ext4_alloc_blocks: multiple allocate blocks needed for a branch
* @indirect_blks: the number of blocks need to allocate for indirect
* blocks
*
* @blks: on return it will store the total number of allocated
* direct blocks
*/
-static int ext3_alloc_blocks(handle_t *handle, struct inode *inode,
- ext3_fsblk_t goal, int indirect_blks, int blks,
- ext3_fsblk_t new_blocks[4], int *err)
+static int ext4_alloc_blocks(handle_t *handle, struct inode *inode,
+ ext4_fsblk_t goal, int indirect_blks, int blks,
+ ext4_fsblk_t new_blocks[4], int *err)
{
int target, i;
unsigned long count = 0;
int index = 0;
- ext3_fsblk_t current_block = 0;
+ ext4_fsblk_t current_block = 0;
int ret = 0;
/*
while (1) {
count = target;
/* allocating blocks for indirect blocks and direct blocks */
- current_block = ext3_new_blocks(handle,inode,goal,&count,err);
+ current_block = ext4_new_blocks(handle,inode,goal,&count,err);
if (*err)
goto failed_out;
return ret;
failed_out:
for (i = 0; i <index; i++)
- ext3_free_blocks(handle, inode, new_blocks[i], 1);
+ ext4_free_blocks(handle, inode, new_blocks[i], 1);
return ret;
}
/**
- * ext3_alloc_branch - allocate and set up a chain of blocks.
+ * ext4_alloc_branch - allocate and set up a chain of blocks.
* @inode: owner
* @indirect_blks: number of allocated indirect blocks
* @blks: number of allocated direct blocks
* links them into chain and (if we are synchronous) writes them to disk.
* In other words, it prepares a branch that can be spliced onto the
* inode. It stores the information about that chain in the branch[], in
- * the same format as ext3_get_branch() would do. We are calling it after
+ * the same format as ext4_get_branch() would do. We are calling it after
* we had read the existing part of chain and partial points to the last
* triple of that (one with zero ->key). Upon the exit we have the same
- * picture as after the successful ext3_get_block(), except that in one
+ * picture as after the successful ext4_get_block(), except that in one
* place chain is disconnected - *branch->p is still zero (we did not
* set the last link), but branch->key contains the number that should
* be placed into *branch->p to fill that gap.
*
* If allocation fails we free all blocks we've allocated (and forget
* their buffer_heads) and return the error value the from failed
- * ext3_alloc_block() (normally -ENOSPC). Otherwise we set the chain
+ * ext4_alloc_block() (normally -ENOSPC). Otherwise we set the chain
* as described above and return 0.
*/
-static int ext3_alloc_branch(handle_t *handle, struct inode *inode,
- int indirect_blks, int *blks, ext3_fsblk_t goal,
+static int ext4_alloc_branch(handle_t *handle, struct inode *inode,
+ int indirect_blks, int *blks, ext4_fsblk_t goal,
int *offsets, Indirect *branch)
{
int blocksize = inode->i_sb->s_blocksize;
int err = 0;
struct buffer_head *bh;
int num;
- ext3_fsblk_t new_blocks[4];
- ext3_fsblk_t current_block;
+ ext4_fsblk_t new_blocks[4];
+ ext4_fsblk_t current_block;
- num = ext3_alloc_blocks(handle, inode, goal, indirect_blks,
+ num = ext4_alloc_blocks(handle, inode, goal, indirect_blks,
*blks, new_blocks, &err);
if (err)
return err;
branch[n].bh = bh;
lock_buffer(bh);
BUFFER_TRACE(bh, "call get_create_access");
- err = ext3_journal_get_create_access(handle, bh);
+ err = ext4_journal_get_create_access(handle, bh);
if (err) {
unlock_buffer(bh);
brelse(bh);
set_buffer_uptodate(bh);
unlock_buffer(bh);
- BUFFER_TRACE(bh, "call ext3_journal_dirty_metadata");
- err = ext3_journal_dirty_metadata(handle, bh);
+ BUFFER_TRACE(bh, "call ext4_journal_dirty_metadata");
+ err = ext4_journal_dirty_metadata(handle, bh);
if (err)
goto failed;
}
/* Allocation failed, free what we already allocated */
for (i = 1; i <= n ; i++) {
BUFFER_TRACE(branch[i].bh, "call journal_forget");
- ext3_journal_forget(handle, branch[i].bh);
+ ext4_journal_forget(handle, branch[i].bh);
}
for (i = 0; i <indirect_blks; i++)
- ext3_free_blocks(handle, inode, new_blocks[i], 1);
+ ext4_free_blocks(handle, inode, new_blocks[i], 1);
- ext3_free_blocks(handle, inode, new_blocks[i], num);
+ ext4_free_blocks(handle, inode, new_blocks[i], num);
return err;
}
/**
- * ext3_splice_branch - splice the allocated branch onto inode.
+ * ext4_splice_branch - splice the allocated branch onto inode.
* @inode: owner
* @block: (logical) number of block we are adding
* @chain: chain of indirect blocks (with a missing link - see
- * ext3_alloc_branch)
+ * ext4_alloc_branch)
* @where: location of missing link
* @num: number of indirect blocks we are adding
* @blks: number of direct blocks we are adding
* inode (->i_blocks, etc.). In case of success we end up with the full
* chain to new block and return 0.
*/
-static int ext3_splice_branch(handle_t *handle, struct inode *inode,
+static int ext4_splice_branch(handle_t *handle, struct inode *inode,
long block, Indirect *where, int num, int blks)
{
int i;
int err = 0;
- struct ext3_block_alloc_info *block_i;
- ext3_fsblk_t current_block;
+ struct ext4_block_alloc_info *block_i;
+ ext4_fsblk_t current_block;
- block_i = EXT3_I(inode)->i_block_alloc_info;
+ block_i = EXT4_I(inode)->i_block_alloc_info;
/*
* If we're splicing into a [td]indirect block (as opposed to the
* inode) then we need to get write access to the [td]indirect block
*/
if (where->bh) {
BUFFER_TRACE(where->bh, "get_write_access");
- err = ext3_journal_get_write_access(handle, where->bh);
+ err = ext4_journal_get_write_access(handle, where->bh);
if (err)
goto err_out;
}
/* We are done with atomic stuff, now do the rest of housekeeping */
inode->i_ctime = CURRENT_TIME_SEC;
- ext3_mark_inode_dirty(handle, inode);
+ ext4_mark_inode_dirty(handle, inode);
/* had we spliced it onto indirect block? */
if (where->bh) {
* onto an indirect block at the very end of the file (the
* file is growing) then we *will* alter the inode to reflect
* the new i_size. But that is not done here - it is done in
- * generic_commit_write->__mark_inode_dirty->ext3_dirty_inode.
+ * generic_commit_write->__mark_inode_dirty->ext4_dirty_inode.
*/
jbd_debug(5, "splicing indirect only\n");
- BUFFER_TRACE(where->bh, "call ext3_journal_dirty_metadata");
- err = ext3_journal_dirty_metadata(handle, where->bh);
+ BUFFER_TRACE(where->bh, "call ext4_journal_dirty_metadata");
+ err = ext4_journal_dirty_metadata(handle, where->bh);
if (err)
goto err_out;
} else {
err_out:
for (i = 1; i <= num; i++) {
BUFFER_TRACE(where[i].bh, "call journal_forget");
- ext3_journal_forget(handle, where[i].bh);
- ext3_free_blocks(handle,inode,le32_to_cpu(where[i-1].key),1);
+ ext4_journal_forget(handle, where[i].bh);
+ ext4_free_blocks(handle,inode,le32_to_cpu(where[i-1].key),1);
}
- ext3_free_blocks(handle, inode, le32_to_cpu(where[num].key), blks);
+ ext4_free_blocks(handle, inode, le32_to_cpu(where[num].key), blks);
return err;
}
* return = 0, if plain lookup failed.
* return < 0, error case.
*/
-int ext3_get_blocks_handle(handle_t *handle, struct inode *inode,
+int ext4_get_blocks_handle(handle_t *handle, struct inode *inode,
sector_t iblock, unsigned long maxblocks,
struct buffer_head *bh_result,
int create, int extend_disksize)
int offsets[4];
Indirect chain[4];
Indirect *partial;
- ext3_fsblk_t goal;
+ ext4_fsblk_t goal;
int indirect_blks;
int blocks_to_boundary = 0;
int depth;
- struct ext3_inode_info *ei = EXT3_I(inode);
+ struct ext4_inode_info *ei = EXT4_I(inode);
int count = 0;
- ext3_fsblk_t first_block = 0;
+ ext4_fsblk_t first_block = 0;
J_ASSERT(handle != NULL || create == 0);
- depth = ext3_block_to_path(inode,iblock,offsets,&blocks_to_boundary);
+ depth = ext4_block_to_path(inode,iblock,offsets,&blocks_to_boundary);
if (depth == 0)
goto out;
- partial = ext3_get_branch(inode, depth, offsets, chain, &err);
+ partial = ext4_get_branch(inode, depth, offsets, chain, &err);
/* Simplest case - block found, no allocation needed */
if (!partial) {
count++;
/*map more blocks*/
while (count < maxblocks && count <= blocks_to_boundary) {
- ext3_fsblk_t blk;
+ ext4_fsblk_t blk;
if (!verify_chain(chain, partial)) {
/*
/*
* If the indirect block is missing while we are reading
- * the chain(ext3_get_branch() returns -EAGAIN err), or
+ * the chain(ext4_get_branch() returns -EAGAIN err), or
* if the chain has been changed after we grab the semaphore,
* (either because another process truncated this branch, or
* another get_block allocated this branch) re-grab the chain to see if
brelse(partial->bh);
partial--;
}
- partial = ext3_get_branch(inode, depth, offsets, chain, &err);
+ partial = ext4_get_branch(inode, depth, offsets, chain, &err);
if (!partial) {
count++;
mutex_unlock(&ei->truncate_mutex);
* allocation info here if necessary
*/
if (S_ISREG(inode->i_mode) && (!ei->i_block_alloc_info))
- ext3_init_block_alloc_info(inode);
+ ext4_init_block_alloc_info(inode);
- goal = ext3_find_goal(inode, iblock, chain, partial);
+ goal = ext4_find_goal(inode, iblock, chain, partial);
/* the number of blocks need to allocate for [d,t]indirect blocks */
indirect_blks = (chain + depth) - partial - 1;
* Next look up the indirect map to count the totoal number of
* direct blocks to allocate for this branch.
*/
- count = ext3_blks_to_allocate(partial, indirect_blks,
+ count = ext4_blks_to_allocate(partial, indirect_blks,
maxblocks, blocks_to_boundary);
/*
- * Block out ext3_truncate while we alter the tree
+ * Block out ext4_truncate while we alter the tree
*/
- err = ext3_alloc_branch(handle, inode, indirect_blks, &count, goal,
+ err = ext4_alloc_branch(handle, inode, indirect_blks, &count, goal,
offsets + (partial - chain), partial);
/*
- * The ext3_splice_branch call will free and forget any buffers
+ * The ext4_splice_branch call will free and forget any buffers
* on the new chain if there is a failure, but that risks using
* up transaction credits, especially for bitmaps where the
* credits cannot be returned. Can we handle this somehow? We
* may need to return -EAGAIN upwards in the worst case. --sct
*/
if (!err)
- err = ext3_splice_branch(handle, inode, iblock,
+ err = ext4_splice_branch(handle, inode, iblock,
partial, indirect_blks, count);
/*
* i_disksize growing is protected by truncate_mutex. Don't forget to
* protect it if you're about to implement concurrent
- * ext3_get_block() -bzzz
+ * ext4_get_block() -bzzz
*/
if (!err && extend_disksize && inode->i_size > ei->i_disksize)
ei->i_disksize = inode->i_size;
return err;
}
-#define DIO_CREDITS (EXT3_RESERVE_TRANS_BLOCKS + 32)
+#define DIO_CREDITS (EXT4_RESERVE_TRANS_BLOCKS + 32)
-static int ext3_get_block(struct inode *inode, sector_t iblock,
+static int ext4_get_block(struct inode *inode, sector_t iblock,
struct buffer_head *bh_result, int create)
{
handle_t *handle = journal_current_handle();
* Huge direct-io writes can hold off commits for long
* periods of time. Let this commit run.
*/
- ext3_journal_stop(handle);
- handle = ext3_journal_start(inode, DIO_CREDITS);
+ ext4_journal_stop(handle);
+ handle = ext4_journal_start(inode, DIO_CREDITS);
if (IS_ERR(handle))
ret = PTR_ERR(handle);
goto get_block;
}
- if (handle->h_buffer_credits <= EXT3_RESERVE_TRANS_BLOCKS) {
+ if (handle->h_buffer_credits <= EXT4_RESERVE_TRANS_BLOCKS) {
/*
* Getting low on buffer credits...
*/
- ret = ext3_journal_extend(handle, DIO_CREDITS);
+ ret = ext4_journal_extend(handle, DIO_CREDITS);
if (ret > 0) {
/*
* Couldn't extend the transaction. Start a new one.
*/
- ret = ext3_journal_restart(handle, DIO_CREDITS);
+ ret = ext4_journal_restart(handle, DIO_CREDITS);
}
}
get_block:
if (ret == 0) {
- ret = ext3_get_blocks_handle(handle, inode, iblock,
+ ret = ext4_get_blocks_handle(handle, inode, iblock,
max_blocks, bh_result, create, 0);
if (ret > 0) {
bh_result->b_size = (ret << inode->i_blkbits);
/*
* `handle' can be NULL if create is zero
*/
-struct buffer_head *ext3_getblk(handle_t *handle, struct inode *inode,
+struct buffer_head *ext4_getblk(handle_t *handle, struct inode *inode,
long block, int create, int *errp)
{
struct buffer_head dummy;
dummy.b_state = 0;
dummy.b_blocknr = -1000;
buffer_trace_init(&dummy.b_history);
- err = ext3_get_blocks_handle(handle, inode, block, 1,
+ err = ext4_get_blocks_handle(handle, inode, block, 1,
&dummy, create, 1);
/*
- * ext3_get_blocks_handle() returns number of blocks
+ * ext4_get_blocks_handle() returns number of blocks
* mapped. 0 in case of a HOLE.
*/
if (err > 0) {
* Now that we do not always journal data, we should
* keep in mind whether this should always journal the
* new buffer as metadata. For now, regular file
- * writes use ext3_get_block instead, so it's not a
+ * writes use ext4_get_block instead, so it's not a
* problem.
*/
lock_buffer(bh);
BUFFER_TRACE(bh, "call get_create_access");
- fatal = ext3_journal_get_create_access(handle, bh);
+ fatal = ext4_journal_get_create_access(handle, bh);
if (!fatal && !buffer_uptodate(bh)) {
memset(bh->b_data,0,inode->i_sb->s_blocksize);
set_buffer_uptodate(bh);
}
unlock_buffer(bh);
- BUFFER_TRACE(bh, "call ext3_journal_dirty_metadata");
- err = ext3_journal_dirty_metadata(handle, bh);
+ BUFFER_TRACE(bh, "call ext4_journal_dirty_metadata");
+ err = ext4_journal_dirty_metadata(handle, bh);
if (!fatal)
fatal = err;
} else {
return NULL;
}
-struct buffer_head *ext3_bread(handle_t *handle, struct inode *inode,
+struct buffer_head *ext4_bread(handle_t *handle, struct inode *inode,
int block, int create, int *err)
{
struct buffer_head * bh;
- bh = ext3_getblk(handle, inode, block, create, err);
+ bh = ext4_getblk(handle, inode, block, create, err);
if (!bh)
return bh;
if (buffer_uptodate(bh))
/*
* To preserve ordering, it is essential that the hole instantiation and
* the data write be encapsulated in a single transaction. We cannot
- * close off a transaction and start a new one between the ext3_get_block()
+ * close off a transaction and start a new one between the ext4_get_block()
* and the commit_write(). So doing the journal_start at the start of
* prepare_write() is the right place.
*
- * Also, this function can nest inside ext3_writepage() ->
- * block_write_full_page(). In that case, we *know* that ext3_writepage()
+ * Also, this function can nest inside ext4_writepage() ->
+ * block_write_full_page(). In that case, we *know* that ext4_writepage()
* has generated enough buffer credits to do the whole page. So we won't
* block on the journal in that case, which is good, because the caller may
* be PF_MEMALLOC.
*
- * By accident, ext3 can be reentered when a transaction is open via
+ * By accident, ext4 can be reentered when a transaction is open via
* quota file writes. If we were to commit the transaction while thus
* reentered, there can be a deadlock - we would be holding a quota
* lock, and the commit would never complete if another thread had a
{
if (!buffer_mapped(bh) || buffer_freed(bh))
return 0;
- return ext3_journal_get_write_access(handle, bh);
+ return ext4_journal_get_write_access(handle, bh);
}
-static int ext3_prepare_write(struct file *file, struct page *page,
+static int ext4_prepare_write(struct file *file, struct page *page,
unsigned from, unsigned to)
{
struct inode *inode = page->mapping->host;
- int ret, needed_blocks = ext3_writepage_trans_blocks(inode);
+ int ret, needed_blocks = ext4_writepage_trans_blocks(inode);
handle_t *handle;
int retries = 0;
retry:
- handle = ext3_journal_start(inode, needed_blocks);
+ handle = ext4_journal_start(inode, needed_blocks);
if (IS_ERR(handle)) {
ret = PTR_ERR(handle);
goto out;
}
- if (test_opt(inode->i_sb, NOBH) && ext3_should_writeback_data(inode))
- ret = nobh_prepare_write(page, from, to, ext3_get_block);
+ if (test_opt(inode->i_sb, NOBH) && ext4_should_writeback_data(inode))
+ ret = nobh_prepare_write(page, from, to, ext4_get_block);
else
- ret = block_prepare_write(page, from, to, ext3_get_block);
+ ret = block_prepare_write(page, from, to, ext4_get_block);
if (ret)
goto prepare_write_failed;
- if (ext3_should_journal_data(inode)) {
+ if (ext4_should_journal_data(inode)) {
ret = walk_page_buffers(handle, page_buffers(page),
from, to, NULL, do_journal_get_write_access);
}
prepare_write_failed:
if (ret)
- ext3_journal_stop(handle);
- if (ret == -ENOSPC && ext3_should_retry_alloc(inode->i_sb, &retries))
+ ext4_journal_stop(handle);
+ if (ret == -ENOSPC && ext4_should_retry_alloc(inode->i_sb, &retries))
goto retry;
out:
return ret;
}
-int ext3_journal_dirty_data(handle_t *handle, struct buffer_head *bh)
+int ext4_journal_dirty_data(handle_t *handle, struct buffer_head *bh)
{
int err = journal_dirty_data(handle, bh);
if (err)
- ext3_journal_abort_handle(__FUNCTION__, __FUNCTION__,
+ ext4_journal_abort_handle(__FUNCTION__, __FUNCTION__,
bh, handle,err);
return err;
}
if (!buffer_mapped(bh) || buffer_freed(bh))
return 0;
set_buffer_uptodate(bh);
- return ext3_journal_dirty_metadata(handle, bh);
+ return ext4_journal_dirty_metadata(handle, bh);
}
/*
* We need to pick up the new inode size which generic_commit_write gave us
* `file' can be NULL - eg, when called from page_symlink().
*
- * ext3 never places buffers on inode->i_mapping->private_list. metadata
+ * ext4 never places buffers on inode->i_mapping->private_list. metadata
* buffers are managed internally.
*/
-static int ext3_ordered_commit_write(struct file *file, struct page *page,
+static int ext4_ordered_commit_write(struct file *file, struct page *page,
unsigned from, unsigned to)
{
- handle_t *handle = ext3_journal_current_handle();
+ handle_t *handle = ext4_journal_current_handle();
struct inode *inode = page->mapping->host;
int ret = 0, ret2;
ret = walk_page_buffers(handle, page_buffers(page),
- from, to, NULL, ext3_journal_dirty_data);
+ from, to, NULL, ext4_journal_dirty_data);
if (ret == 0) {
/*
loff_t new_i_size;
new_i_size = ((loff_t)page->index << PAGE_CACHE_SHIFT) + to;
- if (new_i_size > EXT3_I(inode)->i_disksize)
- EXT3_I(inode)->i_disksize = new_i_size;
+ if (new_i_size > EXT4_I(inode)->i_disksize)
+ EXT4_I(inode)->i_disksize = new_i_size;
ret = generic_commit_write(file, page, from, to);
}
- ret2 = ext3_journal_stop(handle);
+ ret2 = ext4_journal_stop(handle);
if (!ret)
ret = ret2;
return ret;
}
-static int ext3_writeback_commit_write(struct file *file, struct page *page,
+static int ext4_writeback_commit_write(struct file *file, struct page *page,
unsigned from, unsigned to)
{
- handle_t *handle = ext3_journal_current_handle();
+ handle_t *handle = ext4_journal_current_handle();
struct inode *inode = page->mapping->host;
int ret = 0, ret2;
loff_t new_i_size;
new_i_size = ((loff_t)page->index << PAGE_CACHE_SHIFT) + to;
- if (new_i_size > EXT3_I(inode)->i_disksize)
- EXT3_I(inode)->i_disksize = new_i_size;
+ if (new_i_size > EXT4_I(inode)->i_disksize)
+ EXT4_I(inode)->i_disksize = new_i_size;
- if (test_opt(inode->i_sb, NOBH) && ext3_should_writeback_data(inode))
+ if (test_opt(inode->i_sb, NOBH) && ext4_should_writeback_data(inode))
ret = nobh_commit_write(file, page, from, to);
else
ret = generic_commit_write(file, page, from, to);
- ret2 = ext3_journal_stop(handle);
+ ret2 = ext4_journal_stop(handle);
if (!ret)
ret = ret2;
return ret;
}
-static int ext3_journalled_commit_write(struct file *file,
+static int ext4_journalled_commit_write(struct file *file,
struct page *page, unsigned from, unsigned to)
{
- handle_t *handle = ext3_journal_current_handle();
+ handle_t *handle = ext4_journal_current_handle();
struct inode *inode = page->mapping->host;
int ret = 0, ret2;
int partial = 0;
SetPageUptodate(page);
if (pos > inode->i_size)
i_size_write(inode, pos);
- EXT3_I(inode)->i_state |= EXT3_STATE_JDATA;
- if (inode->i_size > EXT3_I(inode)->i_disksize) {
- EXT3_I(inode)->i_disksize = inode->i_size;
- ret2 = ext3_mark_inode_dirty(handle, inode);
+ EXT4_I(inode)->i_state |= EXT4_STATE_JDATA;
+ if (inode->i_size > EXT4_I(inode)->i_disksize) {
+ EXT4_I(inode)->i_disksize = inode->i_size;
+ ret2 = ext4_mark_inode_dirty(handle, inode);
if (!ret)
ret = ret2;
}
- ret2 = ext3_journal_stop(handle);
+ ret2 = ext4_journal_stop(handle);
if (!ret)
ret = ret2;
return ret;
* the swapper to find the on-disk block of a specific piece of data.
*
* Naturally, this is dangerous if the block concerned is still in the
- * journal. If somebody makes a swapfile on an ext3 data-journaling
+ * journal. If somebody makes a swapfile on an ext4 data-journaling
* filesystem and enables swap, then they may get a nasty shock when the
* data getting swapped to that swapfile suddenly gets overwritten by
* the original zero's written out previously to the journal and
* So, if we see any bmap calls here on a modified, data-journaled file,
* take extra steps to flush any blocks which might be in the cache.
*/
-static sector_t ext3_bmap(struct address_space *mapping, sector_t block)
+static sector_t ext4_bmap(struct address_space *mapping, sector_t block)
{
struct inode *inode = mapping->host;
journal_t *journal;
int err;
- if (EXT3_I(inode)->i_state & EXT3_STATE_JDATA) {
+ if (EXT4_I(inode)->i_state & EXT4_STATE_JDATA) {
/*
* This is a REALLY heavyweight approach, but the use of
* bmap on dirty files is expected to be extremely rare:
* in trouble if mortal users could trigger this path at
* will.)
*
- * NB. EXT3_STATE_JDATA is not set on files other than
+ * NB. EXT4_STATE_JDATA is not set on files other than
* regular files. If somebody wants to bmap a directory
* or symlink and gets confused because the buffer
* hasn't yet been flushed to disk, they deserve
* everything they get.
*/
- EXT3_I(inode)->i_state &= ~EXT3_STATE_JDATA;
- journal = EXT3_JOURNAL(inode);
+ EXT4_I(inode)->i_state &= ~EXT4_STATE_JDATA;
+ journal = EXT4_JOURNAL(inode);
journal_lock_updates(journal);
err = journal_flush(journal);
journal_unlock_updates(journal);
return 0;
}
- return generic_block_bmap(mapping,block,ext3_get_block);
+ return generic_block_bmap(mapping,block,ext4_get_block);
}
static int bget_one(handle_t *handle, struct buffer_head *bh)
static int journal_dirty_data_fn(handle_t *handle, struct buffer_head *bh)
{
if (buffer_mapped(bh))
- return ext3_journal_dirty_data(handle, bh);
+ return ext4_journal_dirty_data(handle, bh);
return 0;
}
/*
* Note that we always start a transaction even if we're not journalling
* data. This is to preserve ordering: any hole instantiation within
- * __block_write_full_page -> ext3_get_block() should be journalled
+ * __block_write_full_page -> ext4_get_block() should be journalled
* along with the data so we don't crash and then get metadata which
* refers to old data.
*
*
* Problem:
*
- * ext3_writepage() -> kmalloc() -> __alloc_pages() -> page_launder() ->
- * ext3_writepage()
+ * ext4_writepage() -> kmalloc() -> __alloc_pages() -> page_launder() ->
+ * ext4_writepage()
*
* Similar for:
*
- * ext3_file_write() -> generic_file_write() -> __alloc_pages() -> ...
+ * ext4_file_write() -> generic_file_write() -> __alloc_pages() -> ...
*
- * Same applies to ext3_get_block(). We will deadlock on various things like
+ * Same applies to ext4_get_block(). We will deadlock on various things like
* lock_journal and i_truncate_mutex.
*
* Setting PF_MEMALLOC here doesn't work - too many internal memory
* AKPM2: if all the page's buffers are mapped to disk and !data=journal,
* we don't need to open a transaction here.
*/
-static int ext3_ordered_writepage(struct page *page,
+static int ext4_ordered_writepage(struct page *page,
struct writeback_control *wbc)
{
struct inode *inode = page->mapping->host;
* We give up here if we're reentered, because it might be for a
* different filesystem.
*/
- if (ext3_journal_current_handle())
+ if (ext4_journal_current_handle())
goto out_fail;
- handle = ext3_journal_start(inode, ext3_writepage_trans_blocks(inode));
+ handle = ext4_journal_start(inode, ext4_writepage_trans_blocks(inode));
if (IS_ERR(handle)) {
ret = PTR_ERR(handle);
walk_page_buffers(handle, page_bufs, 0,
PAGE_CACHE_SIZE, NULL, bget_one);
- ret = block_write_full_page(page, ext3_get_block, wbc);
+ ret = block_write_full_page(page, ext4_get_block, wbc);
/*
* The page can become unlocked at any point now, and
}
walk_page_buffers(handle, page_bufs, 0,
PAGE_CACHE_SIZE, NULL, bput_one);
- err = ext3_journal_stop(handle);
+ err = ext4_journal_stop(handle);
if (!ret)
ret = err;
return ret;
return ret;
}
-static int ext3_writeback_writepage(struct page *page,
+static int ext4_writeback_writepage(struct page *page,
struct writeback_control *wbc)
{
struct inode *inode = page->mapping->host;
int ret = 0;
int err;
- if (ext3_journal_current_handle())
+ if (ext4_journal_current_handle())
goto out_fail;
- handle = ext3_journal_start(inode, ext3_writepage_trans_blocks(inode));
+ handle = ext4_journal_start(inode, ext4_writepage_trans_blocks(inode));
if (IS_ERR(handle)) {
ret = PTR_ERR(handle);
goto out_fail;
}
- if (test_opt(inode->i_sb, NOBH) && ext3_should_writeback_data(inode))
- ret = nobh_writepage(page, ext3_get_block, wbc);
+ if (test_opt(inode->i_sb, NOBH) && ext4_should_writeback_data(inode))
+ ret = nobh_writepage(page, ext4_get_block, wbc);
else
- ret = block_write_full_page(page, ext3_get_block, wbc);
+ ret = block_write_full_page(page, ext4_get_block, wbc);
- err = ext3_journal_stop(handle);
+ err = ext4_journal_stop(handle);
if (!ret)
ret = err;
return ret;
return ret;
}
-static int ext3_journalled_writepage(struct page *page,
+static int ext4_journalled_writepage(struct page *page,
struct writeback_control *wbc)
{
struct inode *inode = page->mapping->host;
int ret = 0;
int err;
- if (ext3_journal_current_handle())
+ if (ext4_journal_current_handle())
goto no_write;
- handle = ext3_journal_start(inode, ext3_writepage_trans_blocks(inode));
+ handle = ext4_journal_start(inode, ext4_writepage_trans_blocks(inode));
if (IS_ERR(handle)) {
ret = PTR_ERR(handle);
goto no_write;
*/
ClearPageChecked(page);
ret = block_prepare_write(page, 0, PAGE_CACHE_SIZE,
- ext3_get_block);
+ ext4_get_block);
if (ret != 0) {
- ext3_journal_stop(handle);
+ ext4_journal_stop(handle);
goto out_unlock;
}
ret = walk_page_buffers(handle, page_buffers(page), 0,
PAGE_CACHE_SIZE, NULL, commit_write_fn);
if (ret == 0)
ret = err;
- EXT3_I(inode)->i_state |= EXT3_STATE_JDATA;
+ EXT4_I(inode)->i_state |= EXT4_STATE_JDATA;
unlock_page(page);
} else {
/*
* really know unless we go poke around in the buffer_heads.
* But block_write_full_page will do the right thing.
*/
- ret = block_write_full_page(page, ext3_get_block, wbc);
+ ret = block_write_full_page(page, ext4_get_block, wbc);
}
- err = ext3_journal_stop(handle);
+ err = ext4_journal_stop(handle);
if (!ret)
ret = err;
out:
goto out;
}
-static int ext3_readpage(struct file *file, struct page *page)
+static int ext4_readpage(struct file *file, struct page *page)
{
- return mpage_readpage(page, ext3_get_block);
+ return mpage_readpage(page, ext4_get_block);
}
static int
-ext3_readpages(struct file *file, struct address_space *mapping,
+ext4_readpages(struct file *file, struct address_space *mapping,
struct list_head *pages, unsigned nr_pages)
{
- return mpage_readpages(mapping, pages, nr_pages, ext3_get_block);
+ return mpage_readpages(mapping, pages, nr_pages, ext4_get_block);
}
-static void ext3_invalidatepage(struct page *page, unsigned long offset)
+static void ext4_invalidatepage(struct page *page, unsigned long offset)
{
- journal_t *journal = EXT3_JOURNAL(page->mapping->host);
+ journal_t *journal = EXT4_JOURNAL(page->mapping->host);
/*
* If it's a full truncate we just forget about the pending dirtying
journal_invalidatepage(journal, page, offset);
}
-static int ext3_releasepage(struct page *page, gfp_t wait)
+static int ext4_releasepage(struct page *page, gfp_t wait)
{
- journal_t *journal = EXT3_JOURNAL(page->mapping->host);
+ journal_t *journal = EXT4_JOURNAL(page->mapping->host);
WARN_ON(PageChecked(page));
if (!page_has_buffers(page))
* If the O_DIRECT write is intantiating holes inside i_size and the machine
* crashes then stale disk data _may_ be exposed inside the file.
*/
-static ssize_t ext3_direct_IO(int rw, struct kiocb *iocb,
+static ssize_t ext4_direct_IO(int rw, struct kiocb *iocb,
const struct iovec *iov, loff_t offset,
unsigned long nr_segs)
{
struct file *file = iocb->ki_filp;
struct inode *inode = file->f_mapping->host;
- struct ext3_inode_info *ei = EXT3_I(inode);
+ struct ext4_inode_info *ei = EXT4_I(inode);
handle_t *handle = NULL;
ssize_t ret;
int orphan = 0;
if (rw == WRITE) {
loff_t final_size = offset + count;
- handle = ext3_journal_start(inode, DIO_CREDITS);
+ handle = ext4_journal_start(inode, DIO_CREDITS);
if (IS_ERR(handle)) {
ret = PTR_ERR(handle);
goto out;
}
if (final_size > inode->i_size) {
- ret = ext3_orphan_add(handle, inode);
+ ret = ext4_orphan_add(handle, inode);
if (ret)
goto out_stop;
orphan = 1;
ret = blockdev_direct_IO(rw, iocb, inode, inode->i_sb->s_bdev, iov,
offset, nr_segs,
- ext3_get_block, NULL);
+ ext4_get_block, NULL);
/*
- * Reacquire the handle: ext3_get_block() can restart the transaction
+ * Reacquire the handle: ext4_get_block() can restart the transaction
*/
handle = journal_current_handle();
int err;
if (orphan && inode->i_nlink)
- ext3_orphan_del(handle, inode);
+ ext4_orphan_del(handle, inode);
if (orphan && ret > 0) {
loff_t end = offset + ret;
if (end > inode->i_size) {
* We're going to return a positive `ret'
* here due to non-zero-length I/O, so there's
* no way of reporting error returns from
- * ext3_mark_inode_dirty() to userspace. So
+ * ext4_mark_inode_dirty() to userspace. So
* ignore it.
*/
- ext3_mark_inode_dirty(handle, inode);
+ ext4_mark_inode_dirty(handle, inode);
}
}
- err = ext3_journal_stop(handle);
+ err = ext4_journal_stop(handle);
if (ret == 0)
ret = err;
}
}
/*
- * Pages can be marked dirty completely asynchronously from ext3's journalling
+ * Pages can be marked dirty completely asynchronously from ext4's journalling
* activity. By filemap_sync_pte(), try_to_unmap_one(), etc. We cannot do
* much here because ->set_page_dirty is called under VFS locks. The page is
* not necessarily locked.
* So what we do is to mark the page "pending dirty" and next time writepage
* is called, propagate that into the buffers appropriately.
*/
-static int ext3_journalled_set_page_dirty(struct page *page)
+static int ext4_journalled_set_page_dirty(struct page *page)
{
SetPageChecked(page);
return __set_page_dirty_nobuffers(page);
}
-static const struct address_space_operations ext3_ordered_aops = {
- .readpage = ext3_readpage,
- .readpages = ext3_readpages,
- .writepage = ext3_ordered_writepage,
+static const struct address_space_operations ext4_ordered_aops = {
+ .readpage = ext4_readpage,
+ .readpages = ext4_readpages,
+ .writepage = ext4_ordered_writepage,
.sync_page = block_sync_page,
- .prepare_write = ext3_prepare_write,
- .commit_write = ext3_ordered_commit_write,
- .bmap = ext3_bmap,
- .invalidatepage = ext3_invalidatepage,
- .releasepage = ext3_releasepage,
- .direct_IO = ext3_direct_IO,
+ .prepare_write = ext4_prepare_write,
+ .commit_write = ext4_ordered_commit_write,
+ .bmap = ext4_bmap,
+ .invalidatepage = ext4_invalidatepage,
+ .releasepage = ext4_releasepage,
+ .direct_IO = ext4_direct_IO,
.migratepage = buffer_migrate_page,
};
-static const struct address_space_operations ext3_writeback_aops = {
- .readpage = ext3_readpage,
- .readpages = ext3_readpages,
- .writepage = ext3_writeback_writepage,
+static const struct address_space_operations ext4_writeback_aops = {
+ .readpage = ext4_readpage,
+ .readpages = ext4_readpages,
+ .writepage = ext4_writeback_writepage,
.sync_page = block_sync_page,
- .prepare_write = ext3_prepare_write,
- .commit_write = ext3_writeback_commit_write,
- .bmap = ext3_bmap,
- .invalidatepage = ext3_invalidatepage,
- .releasepage = ext3_releasepage,
- .direct_IO = ext3_direct_IO,
+ .prepare_write = ext4_prepare_write,
+ .commit_write = ext4_writeback_commit_write,
+ .bmap = ext4_bmap,
+ .invalidatepage = ext4_invalidatepage,
+ .releasepage = ext4_releasepage,
+ .direct_IO = ext4_direct_IO,
.migratepage = buffer_migrate_page,
};
-static const struct address_space_operations ext3_journalled_aops = {
- .readpage = ext3_readpage,
- .readpages = ext3_readpages,
- .writepage = ext3_journalled_writepage,
+static const struct address_space_operations ext4_journalled_aops = {
+ .readpage = ext4_readpage,
+ .readpages = ext4_readpages,
+ .writepage = ext4_journalled_writepage,
.sync_page = block_sync_page,
- .prepare_write = ext3_prepare_write,
- .commit_write = ext3_journalled_commit_write,
- .set_page_dirty = ext3_journalled_set_page_dirty,
- .bmap = ext3_bmap,
- .invalidatepage = ext3_invalidatepage,
- .releasepage = ext3_releasepage,
+ .prepare_write = ext4_prepare_write,
+ .commit_write = ext4_journalled_commit_write,
+ .set_page_dirty = ext4_journalled_set_page_dirty,
+ .bmap = ext4_bmap,
+ .invalidatepage = ext4_invalidatepage,
+ .releasepage = ext4_releasepage,
};
-void ext3_set_aops(struct inode *inode)
+void ext4_set_aops(struct inode *inode)
{
- if (ext3_should_order_data(inode))
- inode->i_mapping->a_ops = &ext3_ordered_aops;
- else if (ext3_should_writeback_data(inode))
- inode->i_mapping->a_ops = &ext3_writeback_aops;
+ if (ext4_should_order_data(inode))
+ inode->i_mapping->a_ops = &ext4_ordered_aops;
+ else if (ext4_should_writeback_data(inode))
+ inode->i_mapping->a_ops = &ext4_writeback_aops;
else
- inode->i_mapping->a_ops = &ext3_journalled_aops;
+ inode->i_mapping->a_ops = &ext4_journalled_aops;
}
/*
- * ext3_block_truncate_page() zeroes out a mapping from file offset `from'
+ * ext4_block_truncate_page() zeroes out a mapping from file offset `from'
* up to the end of the block which corresponds to `from'.
* This required during truncate. We need to physically zero the tail end
* of that block so it doesn't yield old data if the file is later grown.
*/
-static int ext3_block_truncate_page(handle_t *handle, struct page *page,
+static int ext4_block_truncate_page(handle_t *handle, struct page *page,
struct address_space *mapping, loff_t from)
{
- ext3_fsblk_t index = from >> PAGE_CACHE_SHIFT;
+ ext4_fsblk_t index = from >> PAGE_CACHE_SHIFT;
unsigned offset = from & (PAGE_CACHE_SIZE-1);
unsigned blocksize, iblock, length, pos;
struct inode *inode = mapping->host;
* read-in the page - otherwise we create buffers to do the IO.
*/
if (!page_has_buffers(page) && test_opt(inode->i_sb, NOBH) &&
- ext3_should_writeback_data(inode) && PageUptodate(page)) {
+ ext4_should_writeback_data(inode) && PageUptodate(page)) {
kaddr = kmap_atomic(page, KM_USER0);
memset(kaddr + offset, 0, length);
flush_dcache_page(page);
if (!buffer_mapped(bh)) {
BUFFER_TRACE(bh, "unmapped");
- ext3_get_block(inode, iblock, bh, 0);
+ ext4_get_block(inode, iblock, bh, 0);
/* unmapped? It's a hole - nothing to do */
if (!buffer_mapped(bh)) {
BUFFER_TRACE(bh, "still unmapped");
goto unlock;
}
- if (ext3_should_journal_data(inode)) {
+ if (ext4_should_journal_data(inode)) {
BUFFER_TRACE(bh, "get write access");
- err = ext3_journal_get_write_access(handle, bh);
+ err = ext4_journal_get_write_access(handle, bh);
if (err)
goto unlock;
}
BUFFER_TRACE(bh, "zeroed end of block");
err = 0;
- if (ext3_should_journal_data(inode)) {
- err = ext3_journal_dirty_metadata(handle, bh);
+ if (ext4_should_journal_data(inode)) {
+ err = ext4_journal_dirty_metadata(handle, bh);
} else {
- if (ext3_should_order_data(inode))
- err = ext3_journal_dirty_data(handle, bh);
+ if (ext4_should_order_data(inode))
+ err = ext4_journal_dirty_data(handle, bh);
mark_buffer_dirty(bh);
}
}
/**
- * ext3_find_shared - find the indirect blocks for partial truncation.
+ * ext4_find_shared - find the indirect blocks for partial truncation.
* @inode: inode in question
* @depth: depth of the affected branch
- * @offsets: offsets of pointers in that branch (see ext3_block_to_path)
+ * @offsets: offsets of pointers in that branch (see ext4_block_to_path)
* @chain: place to store the pointers to partial indirect blocks
* @top: place to the (detached) top of branch
*
- * This is a helper function used by ext3_truncate().
+ * This is a helper function used by ext4_truncate().
*
* When we do truncate() we may have to clean the ends of several
* indirect blocks but leave the blocks themselves alive. Block is
* from it (and it is on the path to the first completely truncated
* data block, indeed). We have to free the top of that path along
* with everything to the right of the path. Since no allocation
- * past the truncation point is possible until ext3_truncate()
+ * past the truncation point is possible until ext4_truncate()
* finishes, we may safely do the latter, but top of branch may
* require special attention - pageout below the truncation point
* might try to populate it.
* c) free the subtrees growing from the inode past the @chain[0].
* (no partially truncated stuff there). */
-static Indirect *ext3_find_shared(struct inode *inode, int depth,
+static Indirect *ext4_find_shared(struct inode *inode, int depth,
int offsets[4], Indirect chain[4], __le32 *top)
{
Indirect *partial, *p;
/* Make k index the deepest non-null offest + 1 */
for (k = depth; k > 1 && !offsets[k-1]; k--)
;
- partial = ext3_get_branch(inode, k, offsets, chain, &err);
+ partial = ext4_get_branch(inode, k, offsets, chain, &err);
/* Writer: pointers */
if (!partial)
partial = chain + k-1;
p->p--;
} else {
*top = *p->p;
- /* Nope, don't do this in ext3. Must leave the tree intact */
+ /* Nope, don't do this in ext4. Must leave the tree intact */
#if 0
*p->p = 0;
#endif
* We release `count' blocks on disk, but (last - first) may be greater
* than `count' because there can be holes in there.
*/
-static void ext3_clear_blocks(handle_t *handle, struct inode *inode,
- struct buffer_head *bh, ext3_fsblk_t block_to_free,
+static void ext4_clear_blocks(handle_t *handle, struct inode *inode,
+ struct buffer_head *bh, ext4_fsblk_t block_to_free,
unsigned long count, __le32 *first, __le32 *last)
{
__le32 *p;
if (try_to_extend_transaction(handle, inode)) {
if (bh) {
- BUFFER_TRACE(bh, "call ext3_journal_dirty_metadata");
- ext3_journal_dirty_metadata(handle, bh);
+ BUFFER_TRACE(bh, "call ext4_journal_dirty_metadata");
+ ext4_journal_dirty_metadata(handle, bh);
}
- ext3_mark_inode_dirty(handle, inode);
- ext3_journal_test_restart(handle, inode);
+ ext4_mark_inode_dirty(handle, inode);
+ ext4_journal_test_restart(handle, inode);
if (bh) {
BUFFER_TRACE(bh, "retaking write access");
- ext3_journal_get_write_access(handle, bh);
+ ext4_journal_get_write_access(handle, bh);
}
}
*p = 0;
bh = sb_find_get_block(inode->i_sb, nr);
- ext3_forget(handle, 0, inode, bh, nr);
+ ext4_forget(handle, 0, inode, bh, nr);
}
}
- ext3_free_blocks(handle, inode, block_to_free, count);
+ ext4_free_blocks(handle, inode, block_to_free, count);
}
/**
- * ext3_free_data - free a list of data blocks
+ * ext4_free_data - free a list of data blocks
* @handle: handle for this transaction
* @inode: inode we are dealing with
* @this_bh: indirect buffer_head which contains *@first and *@last
* @this_bh will be %NULL if @first and @last point into the inode's direct
* block pointers.
*/
-static void ext3_free_data(handle_t *handle, struct inode *inode,
+static void ext4_free_data(handle_t *handle, struct inode *inode,
struct buffer_head *this_bh,
__le32 *first, __le32 *last)
{
- ext3_fsblk_t block_to_free = 0; /* Starting block # of a run */
+ ext4_fsblk_t block_to_free = 0; /* Starting block # of a run */
unsigned long count = 0; /* Number of blocks in the run */
__le32 *block_to_free_p = NULL; /* Pointer into inode/ind
corresponding to
block_to_free */
- ext3_fsblk_t nr; /* Current block # */
+ ext4_fsblk_t nr; /* Current block # */
__le32 *p; /* Pointer into inode/ind
for current block */
int err;
if (this_bh) { /* For indirect block */
BUFFER_TRACE(this_bh, "get_write_access");
- err = ext3_journal_get_write_access(handle, this_bh);
+ err = ext4_journal_get_write_access(handle, this_bh);
/* Important: if we can't update the indirect pointers
* to the blocks, we can't free them. */
if (err)
} else if (nr == block_to_free + count) {
count++;
} else {
- ext3_clear_blocks(handle, inode, this_bh,
+ ext4_clear_blocks(handle, inode, this_bh,
block_to_free,
count, block_to_free_p, p);
block_to_free = nr;
}
if (count > 0)
- ext3_clear_blocks(handle, inode, this_bh, block_to_free,
+ ext4_clear_blocks(handle, inode, this_bh, block_to_free,
count, block_to_free_p, p);
if (this_bh) {
- BUFFER_TRACE(this_bh, "call ext3_journal_dirty_metadata");
- ext3_journal_dirty_metadata(handle, this_bh);
+ BUFFER_TRACE(this_bh, "call ext4_journal_dirty_metadata");
+ ext4_journal_dirty_metadata(handle, this_bh);
}
}
/**
- * ext3_free_branches - free an array of branches
+ * ext4_free_branches - free an array of branches
* @handle: JBD handle for this transaction
* @inode: inode we are dealing with
* @parent_bh: the buffer_head which contains *@first and *@last
* stored as little-endian 32-bit) and updating @inode->i_blocks
* appropriately.
*/
-static void ext3_free_branches(handle_t *handle, struct inode *inode,
+static void ext4_free_branches(handle_t *handle, struct inode *inode,
struct buffer_head *parent_bh,
__le32 *first, __le32 *last, int depth)
{
- ext3_fsblk_t nr;
+ ext4_fsblk_t nr;
__le32 *p;
if (is_handle_aborted(handle))
if (depth--) {
struct buffer_head *bh;
- int addr_per_block = EXT3_ADDR_PER_BLOCK(inode->i_sb);
+ int addr_per_block = EXT4_ADDR_PER_BLOCK(inode->i_sb);
p = last;
while (--p >= first) {
nr = le32_to_cpu(*p);
* (should be rare).
*/
if (!bh) {
- ext3_error(inode->i_sb, "ext3_free_branches",
+ ext4_error(inode->i_sb, "ext4_free_branches",
"Read failure, inode=%lu, block="E3FSBLK,
inode->i_ino, nr);
continue;
/* This zaps the entire block. Bottom up. */
BUFFER_TRACE(bh, "free child branches");
- ext3_free_branches(handle, inode, bh,
+ ext4_free_branches(handle, inode, bh,
(__le32*)bh->b_data,
(__le32*)bh->b_data + addr_per_block,
depth);
* transaction. But if it's part of the committing
* transaction then journal_forget() will simply
* brelse() it. That means that if the underlying
- * block is reallocated in ext3_get_block(),
+ * block is reallocated in ext4_get_block(),
* unmap_underlying_metadata() will find this block
* and will try to get rid of it. damn, damn.
*
* revoke records must be emitted *before* clearing
* this block's bit in the bitmaps.
*/
- ext3_forget(handle, 1, inode, bh, bh->b_blocknr);
+ ext4_forget(handle, 1, inode, bh, bh->b_blocknr);
/*
* Everything below this this pointer has been
if (is_handle_aborted(handle))
return;
if (try_to_extend_transaction(handle, inode)) {
- ext3_mark_inode_dirty(handle, inode);
- ext3_journal_test_restart(handle, inode);
+ ext4_mark_inode_dirty(handle, inode);
+ ext4_journal_test_restart(handle, inode);
}
- ext3_free_blocks(handle, inode, nr, 1);
+ ext4_free_blocks(handle, inode, nr, 1);
if (parent_bh) {
/*
* pointed to by an indirect block: journal it
*/
BUFFER_TRACE(parent_bh, "get_write_access");
- if (!ext3_journal_get_write_access(handle,
+ if (!ext4_journal_get_write_access(handle,
parent_bh)){
*p = 0;
BUFFER_TRACE(parent_bh,
- "call ext3_journal_dirty_metadata");
- ext3_journal_dirty_metadata(handle,
+ "call ext4_journal_dirty_metadata");
+ ext4_journal_dirty_metadata(handle,
parent_bh);
}
}
} else {
/* We have reached the bottom of the tree. */
BUFFER_TRACE(parent_bh, "free data blocks");
- ext3_free_data(handle, inode, parent_bh, first, last);
+ ext4_free_data(handle, inode, parent_bh, first, last);
}
}
/*
- * ext3_truncate()
+ * ext4_truncate()
*
- * We block out ext3_get_block() block instantiations across the entire
- * transaction, and VFS/VM ensures that ext3_truncate() cannot run
+ * We block out ext4_get_block() block instantiations across the entire
+ * transaction, and VFS/VM ensures that ext4_truncate() cannot run
* simultaneously on behalf of the same inode.
*
* As we work through the truncate and commmit bits of it to the journal there
* truncate against the orphan inode list.
*
* The committed inode has the new, desired i_size (which is the same as
- * i_disksize in this case). After a crash, ext3_orphan_cleanup() will see
+ * i_disksize in this case). After a crash, ext4_orphan_cleanup() will see
* that this inode's truncate did not complete and it will again call
- * ext3_truncate() to have another go. So there will be instantiated blocks
- * to the right of the truncation point in a crashed ext3 filesystem. But
+ * ext4_truncate() to have another go. So there will be instantiated blocks
+ * to the right of the truncation point in a crashed ext4 filesystem. But
* that's fine - as long as they are linked from the inode, the post-crash
- * ext3_truncate() run will find them and release them.
+ * ext4_truncate() run will find them and release them.
*/
-void ext3_truncate(struct inode *inode)
+void ext4_truncate(struct inode *inode)
{
handle_t *handle;
- struct ext3_inode_info *ei = EXT3_I(inode);
+ struct ext4_inode_info *ei = EXT4_I(inode);
__le32 *i_data = ei->i_data;
- int addr_per_block = EXT3_ADDR_PER_BLOCK(inode->i_sb);
+ int addr_per_block = EXT4_ADDR_PER_BLOCK(inode->i_sb);
struct address_space *mapping = inode->i_mapping;
int offsets[4];
Indirect chain[4];
if (!(S_ISREG(inode->i_mode) || S_ISDIR(inode->i_mode) ||
S_ISLNK(inode->i_mode)))
return;
- if (ext3_inode_is_fast_symlink(inode))
+ if (ext4_inode_is_fast_symlink(inode))
return;
if (IS_APPEND(inode) || IS_IMMUTABLE(inode))
return;
}
last_block = (inode->i_size + blocksize-1)
- >> EXT3_BLOCK_SIZE_BITS(inode->i_sb);
+ >> EXT4_BLOCK_SIZE_BITS(inode->i_sb);
if (page)
- ext3_block_truncate_page(handle, page, mapping, inode->i_size);
+ ext4_block_truncate_page(handle, page, mapping, inode->i_size);
- n = ext3_block_to_path(inode, last_block, offsets, NULL);
+ n = ext4_block_to_path(inode, last_block, offsets, NULL);
if (n == 0)
goto out_stop; /* error */
* Implication: the file must always be in a sane, consistent
* truncatable state while each transaction commits.
*/
- if (ext3_orphan_add(handle, inode))
+ if (ext4_orphan_add(handle, inode))
goto out_stop;
/*
* occurs before the truncate completes, so it is now safe to propagate
* the new, shorter inode size (held for now in i_size) into the
* on-disk inode. We do this via i_disksize, which is the value which
- * ext3 *really* writes onto the disk inode.
+ * ext4 *really* writes onto the disk inode.
*/
ei->i_disksize = inode->i_size;
/*
- * From here we block out all ext3_get_block() callers who want to
+ * From here we block out all ext4_get_block() callers who want to
* modify the block allocation tree.
*/
mutex_lock(&ei->truncate_mutex);
if (n == 1) { /* direct blocks */
- ext3_free_data(handle, inode, NULL, i_data+offsets[0],
- i_data + EXT3_NDIR_BLOCKS);
+ ext4_free_data(handle, inode, NULL, i_data+offsets[0],
+ i_data + EXT4_NDIR_BLOCKS);
goto do_indirects;
}
- partial = ext3_find_shared(inode, n, offsets, chain, &nr);
+ partial = ext4_find_shared(inode, n, offsets, chain, &nr);
/* Kill the top of shared branch (not detached) */
if (nr) {
if (partial == chain) {
/* Shared branch grows from the inode */
- ext3_free_branches(handle, inode, NULL,
+ ext4_free_branches(handle, inode, NULL,
&nr, &nr+1, (chain+n-1) - partial);
*partial->p = 0;
/*
} else {
/* Shared branch grows from an indirect block */
BUFFER_TRACE(partial->bh, "get_write_access");
- ext3_free_branches(handle, inode, partial->bh,
+ ext4_free_branches(handle, inode, partial->bh,
partial->p,
partial->p+1, (chain+n-1) - partial);
}
}
/* Clear the ends of indirect blocks on the shared branch */
while (partial > chain) {
- ext3_free_branches(handle, inode, partial->bh, partial->p + 1,
+ ext4_free_branches(handle, inode, partial->bh, partial->p + 1,
(__le32*)partial->bh->b_data+addr_per_block,
(chain+n-1) - partial);
BUFFER_TRACE(partial->bh, "call brelse");
/* Kill the remaining (whole) subtrees */
switch (offsets[0]) {
default:
- nr = i_data[EXT3_IND_BLOCK];
+ nr = i_data[EXT4_IND_BLOCK];
if (nr) {
- ext3_free_branches(handle, inode, NULL, &nr, &nr+1, 1);
- i_data[EXT3_IND_BLOCK] = 0;
+ ext4_free_branches(handle, inode, NULL, &nr, &nr+1, 1);
+ i_data[EXT4_IND_BLOCK] = 0;
}
- case EXT3_IND_BLOCK:
- nr = i_data[EXT3_DIND_BLOCK];
+ case EXT4_IND_BLOCK:
+ nr = i_data[EXT4_DIND_BLOCK];
if (nr) {
- ext3_free_branches(handle, inode, NULL, &nr, &nr+1, 2);
- i_data[EXT3_DIND_BLOCK] = 0;
+ ext4_free_branches(handle, inode, NULL, &nr, &nr+1, 2);
+ i_data[EXT4_DIND_BLOCK] = 0;
}
- case EXT3_DIND_BLOCK:
- nr = i_data[EXT3_TIND_BLOCK];
+ case EXT4_DIND_BLOCK:
+ nr = i_data[EXT4_TIND_BLOCK];
if (nr) {
- ext3_free_branches(handle, inode, NULL, &nr, &nr+1, 3);
- i_data[EXT3_TIND_BLOCK] = 0;
+ ext4_free_branches(handle, inode, NULL, &nr, &nr+1, 3);
+ i_data[EXT4_TIND_BLOCK] = 0;
}
- case EXT3_TIND_BLOCK:
+ case EXT4_TIND_BLOCK:
;
}
- ext3_discard_reservation(inode);
+ ext4_discard_reservation(inode);
mutex_unlock(&ei->truncate_mutex);
inode->i_mtime = inode->i_ctime = CURRENT_TIME_SEC;
- ext3_mark_inode_dirty(handle, inode);
+ ext4_mark_inode_dirty(handle, inode);
/*
* In a multi-transaction truncate, we only make the final transaction
* If this was a simple ftruncate(), and the file will remain alive
* then we need to clear up the orphan record which we created above.
* However, if this was a real unlink then we were called by
- * ext3_delete_inode(), and we allow that function to clean up the
+ * ext4_delete_inode(), and we allow that function to clean up the
* orphan info for us.
*/
if (inode->i_nlink)
- ext3_orphan_del(handle, inode);
+ ext4_orphan_del(handle, inode);
- ext3_journal_stop(handle);
+ ext4_journal_stop(handle);
}
-static ext3_fsblk_t ext3_get_inode_block(struct super_block *sb,
- unsigned long ino, struct ext3_iloc *iloc)
+static ext4_fsblk_t ext4_get_inode_block(struct super_block *sb,
+ unsigned long ino, struct ext4_iloc *iloc)
{
unsigned long desc, group_desc, block_group;
unsigned long offset;
- ext3_fsblk_t block;
+ ext4_fsblk_t block;
struct buffer_head *bh;
- struct ext3_group_desc * gdp;
+ struct ext4_group_desc * gdp;
- if (!ext3_valid_inum(sb, ino)) {
+ if (!ext4_valid_inum(sb, ino)) {
/*
* This error is already checked for in namei.c unless we are
* looking at an NFS filehandle, in which case no error
return 0;
}
- block_group = (ino - 1) / EXT3_INODES_PER_GROUP(sb);
- if (block_group >= EXT3_SB(sb)->s_groups_count) {
- ext3_error(sb,"ext3_get_inode_block","group >= groups count");
+ block_group = (ino - 1) / EXT4_INODES_PER_GROUP(sb);
+ if (block_group >= EXT4_SB(sb)->s_groups_count) {
+ ext4_error(sb,"ext4_get_inode_block","group >= groups count");
return 0;
}
smp_rmb();
- group_desc = block_group >> EXT3_DESC_PER_BLOCK_BITS(sb);
- desc = block_group & (EXT3_DESC_PER_BLOCK(sb) - 1);
- bh = EXT3_SB(sb)->s_group_desc[group_desc];
+ group_desc = block_group >> EXT4_DESC_PER_BLOCK_BITS(sb);
+ desc = block_group & (EXT4_DESC_PER_BLOCK(sb) - 1);
+ bh = EXT4_SB(sb)->s_group_desc[group_desc];
if (!bh) {
- ext3_error (sb, "ext3_get_inode_block",
+ ext4_error (sb, "ext4_get_inode_block",
"Descriptor not loaded");
return 0;
}
- gdp = (struct ext3_group_desc *)bh->b_data;
+ gdp = (struct ext4_group_desc *)bh->b_data;
/*
* Figure out the offset within the block group inode table
*/
- offset = ((ino - 1) % EXT3_INODES_PER_GROUP(sb)) *
- EXT3_INODE_SIZE(sb);
+ offset = ((ino - 1) % EXT4_INODES_PER_GROUP(sb)) *
+ EXT4_INODE_SIZE(sb);
block = le32_to_cpu(gdp[desc].bg_inode_table) +
- (offset >> EXT3_BLOCK_SIZE_BITS(sb));
+ (offset >> EXT4_BLOCK_SIZE_BITS(sb));
iloc->block_group = block_group;
- iloc->offset = offset & (EXT3_BLOCK_SIZE(sb) - 1);
+ iloc->offset = offset & (EXT4_BLOCK_SIZE(sb) - 1);
return block;
}
/*
- * ext3_get_inode_loc returns with an extra refcount against the inode's
+ * ext4_get_inode_loc returns with an extra refcount against the inode's
* underlying buffer_head on success. If 'in_mem' is true, we have all
* data in memory that is needed to recreate the on-disk version of this
* inode.
*/
-static int __ext3_get_inode_loc(struct inode *inode,
- struct ext3_iloc *iloc, int in_mem)
+static int __ext4_get_inode_loc(struct inode *inode,
+ struct ext4_iloc *iloc, int in_mem)
{
- ext3_fsblk_t block;
+ ext4_fsblk_t block;
struct buffer_head *bh;
- block = ext3_get_inode_block(inode->i_sb, inode->i_ino, iloc);
+ block = ext4_get_inode_block(inode->i_sb, inode->i_ino, iloc);
if (!block)
return -EIO;
bh = sb_getblk(inode->i_sb, block);
if (!bh) {
- ext3_error (inode->i_sb, "ext3_get_inode_loc",
+ ext4_error (inode->i_sb, "ext4_get_inode_loc",
"unable to read inode block - "
"inode=%lu, block="E3FSBLK,
inode->i_ino, block);
*/
if (in_mem) {
struct buffer_head *bitmap_bh;
- struct ext3_group_desc *desc;
+ struct ext4_group_desc *desc;
int inodes_per_buffer;
int inode_offset, i;
int block_group;
int start;
block_group = (inode->i_ino - 1) /
- EXT3_INODES_PER_GROUP(inode->i_sb);
+ EXT4_INODES_PER_GROUP(inode->i_sb);
inodes_per_buffer = bh->b_size /
- EXT3_INODE_SIZE(inode->i_sb);
+ EXT4_INODE_SIZE(inode->i_sb);
inode_offset = ((inode->i_ino - 1) %
- EXT3_INODES_PER_GROUP(inode->i_sb));
+ EXT4_INODES_PER_GROUP(inode->i_sb));
start = inode_offset & ~(inodes_per_buffer - 1);
/* Is the inode bitmap in cache? */
- desc = ext3_get_group_desc(inode->i_sb,
+ desc = ext4_get_group_desc(inode->i_sb,
block_group, NULL);
if (!desc)
goto make_io;
for (i = start; i < start + inodes_per_buffer; i++) {
if (i == inode_offset)
continue;
- if (ext3_test_bit(i, bitmap_bh->b_data))
+ if (ext4_test_bit(i, bitmap_bh->b_data))
break;
}
brelse(bitmap_bh);
submit_bh(READ_META, bh);
wait_on_buffer(bh);
if (!buffer_uptodate(bh)) {
- ext3_error(inode->i_sb, "ext3_get_inode_loc",
+ ext4_error(inode->i_sb, "ext4_get_inode_loc",
"unable to read inode block - "
"inode=%lu, block="E3FSBLK,
inode->i_ino, block);
return 0;
}
-int ext3_get_inode_loc(struct inode *inode, struct ext3_iloc *iloc)
+int ext4_get_inode_loc(struct inode *inode, struct ext4_iloc *iloc)
{
/* We have all inode data except xattrs in memory here. */
- return __ext3_get_inode_loc(inode, iloc,
- !(EXT3_I(inode)->i_state & EXT3_STATE_XATTR));
+ return __ext4_get_inode_loc(inode, iloc,
+ !(EXT4_I(inode)->i_state & EXT4_STATE_XATTR));
}
-void ext3_set_inode_flags(struct inode *inode)
+void ext4_set_inode_flags(struct inode *inode)
{
- unsigned int flags = EXT3_I(inode)->i_flags;
+ unsigned int flags = EXT4_I(inode)->i_flags;
inode->i_flags &= ~(S_SYNC|S_APPEND|S_IMMUTABLE|S_NOATIME|S_DIRSYNC);
- if (flags & EXT3_SYNC_FL)
+ if (flags & EXT4_SYNC_FL)
inode->i_flags |= S_SYNC;
- if (flags & EXT3_APPEND_FL)
+ if (flags & EXT4_APPEND_FL)
inode->i_flags |= S_APPEND;
- if (flags & EXT3_IMMUTABLE_FL)
+ if (flags & EXT4_IMMUTABLE_FL)
inode->i_flags |= S_IMMUTABLE;
- if (flags & EXT3_NOATIME_FL)
+ if (flags & EXT4_NOATIME_FL)
inode->i_flags |= S_NOATIME;
- if (flags & EXT3_DIRSYNC_FL)
+ if (flags & EXT4_DIRSYNC_FL)
inode->i_flags |= S_DIRSYNC;
}
-void ext3_read_inode(struct inode * inode)
+void ext4_read_inode(struct inode * inode)
{
- struct ext3_iloc iloc;
- struct ext3_inode *raw_inode;
- struct ext3_inode_info *ei = EXT3_I(inode);
+ struct ext4_iloc iloc;
+ struct ext4_inode *raw_inode;
+ struct ext4_inode_info *ei = EXT4_I(inode);
struct buffer_head *bh;
int block;
-#ifdef CONFIG_EXT3_FS_POSIX_ACL
- ei->i_acl = EXT3_ACL_NOT_CACHED;
- ei->i_default_acl = EXT3_ACL_NOT_CACHED;
+#ifdef CONFIG_EXT4DEV_FS_POSIX_ACL
+ ei->i_acl = EXT4_ACL_NOT_CACHED;
+ ei->i_default_acl = EXT4_ACL_NOT_CACHED;
#endif
ei->i_block_alloc_info = NULL;
- if (__ext3_get_inode_loc(inode, &iloc, 0))
+ if (__ext4_get_inode_loc(inode, &iloc, 0))
goto bad_inode;
bh = iloc.bh;
- raw_inode = ext3_raw_inode(&iloc);
+ raw_inode = ext4_raw_inode(&iloc);
inode->i_mode = le16_to_cpu(raw_inode->i_mode);
inode->i_uid = (uid_t)le16_to_cpu(raw_inode->i_uid_low);
inode->i_gid = (gid_t)le16_to_cpu(raw_inode->i_gid_low);
*/
if (inode->i_nlink == 0) {
if (inode->i_mode == 0 ||
- !(EXT3_SB(inode->i_sb)->s_mount_state & EXT3_ORPHAN_FS)) {
+ !(EXT4_SB(inode->i_sb)->s_mount_state & EXT4_ORPHAN_FS)) {
/* this inode is deleted */
brelse (bh);
goto bad_inode;
}
inode->i_blocks = le32_to_cpu(raw_inode->i_blocks);
ei->i_flags = le32_to_cpu(raw_inode->i_flags);
-#ifdef EXT3_FRAGMENTS
+#ifdef EXT4_FRAGMENTS
ei->i_faddr = le32_to_cpu(raw_inode->i_faddr);
ei->i_frag_no = raw_inode->i_frag;
ei->i_frag_size = raw_inode->i_fsize;
* NOTE! The in-memory inode i_data array is in little-endian order
* even on big-endian machines: we do NOT byteswap the block numbers!
*/
- for (block = 0; block < EXT3_N_BLOCKS; block++)
+ for (block = 0; block < EXT4_N_BLOCKS; block++)
ei->i_data[block] = raw_inode->i_block[block];
INIT_LIST_HEAD(&ei->i_orphan);
- if (inode->i_ino >= EXT3_FIRST_INO(inode->i_sb) + 1 &&
- EXT3_INODE_SIZE(inode->i_sb) > EXT3_GOOD_OLD_INODE_SIZE) {
+ if (inode->i_ino >= EXT4_FIRST_INO(inode->i_sb) + 1 &&
+ EXT4_INODE_SIZE(inode->i_sb) > EXT4_GOOD_OLD_INODE_SIZE) {
/*
* When mke2fs creates big inodes it does not zero out
- * the unused bytes above EXT3_GOOD_OLD_INODE_SIZE,
+ * the unused bytes above EXT4_GOOD_OLD_INODE_SIZE,
* so ignore those first few inodes.
*/
ei->i_extra_isize = le16_to_cpu(raw_inode->i_extra_isize);
- if (EXT3_GOOD_OLD_INODE_SIZE + ei->i_extra_isize >
- EXT3_INODE_SIZE(inode->i_sb))
+ if (EXT4_GOOD_OLD_INODE_SIZE + ei->i_extra_isize >
+ EXT4_INODE_SIZE(inode->i_sb))
goto bad_inode;
if (ei->i_extra_isize == 0) {
/* The extra space is currently unused. Use it. */
- ei->i_extra_isize = sizeof(struct ext3_inode) -
- EXT3_GOOD_OLD_INODE_SIZE;
+ ei->i_extra_isize = sizeof(struct ext4_inode) -
+ EXT4_GOOD_OLD_INODE_SIZE;
} else {
__le32 *magic = (void *)raw_inode +
- EXT3_GOOD_OLD_INODE_SIZE +
+ EXT4_GOOD_OLD_INODE_SIZE +
ei->i_extra_isize;
- if (*magic == cpu_to_le32(EXT3_XATTR_MAGIC))
- ei->i_state |= EXT3_STATE_XATTR;
+ if (*magic == cpu_to_le32(EXT4_XATTR_MAGIC))
+ ei->i_state |= EXT4_STATE_XATTR;
}
} else
ei->i_extra_isize = 0;
if (S_ISREG(inode->i_mode)) {
- inode->i_op = &ext3_file_inode_operations;
- inode->i_fop = &ext3_file_operations;
- ext3_set_aops(inode);
+ inode->i_op = &ext4_file_inode_operations;
+ inode->i_fop = &ext4_file_operations;
+ ext4_set_aops(inode);
} else if (S_ISDIR(inode->i_mode)) {
- inode->i_op = &ext3_dir_inode_operations;
- inode->i_fop = &ext3_dir_operations;
+ inode->i_op = &ext4_dir_inode_operations;
+ inode->i_fop = &ext4_dir_operations;
} else if (S_ISLNK(inode->i_mode)) {
- if (ext3_inode_is_fast_symlink(inode))
- inode->i_op = &ext3_fast_symlink_inode_operations;
+ if (ext4_inode_is_fast_symlink(inode))
+ inode->i_op = &ext4_fast_symlink_inode_operations;
else {
- inode->i_op = &ext3_symlink_inode_operations;
- ext3_set_aops(inode);
+ inode->i_op = &ext4_symlink_inode_operations;
+ ext4_set_aops(inode);
}
} else {
- inode->i_op = &ext3_special_inode_operations;
+ inode->i_op = &ext4_special_inode_operations;
if (raw_inode->i_block[0])
init_special_inode(inode, inode->i_mode,
old_decode_dev(le32_to_cpu(raw_inode->i_block[0])));
new_decode_dev(le32_to_cpu(raw_inode->i_block[1])));
}
brelse (iloc.bh);
- ext3_set_inode_flags(inode);
+ ext4_set_inode_flags(inode);
return;
bad_inode:
*
* The caller must have write access to iloc->bh.
*/
-static int ext3_do_update_inode(handle_t *handle,
+static int ext4_do_update_inode(handle_t *handle,
struct inode *inode,
- struct ext3_iloc *iloc)
+ struct ext4_iloc *iloc)
{
- struct ext3_inode *raw_inode = ext3_raw_inode(iloc);
- struct ext3_inode_info *ei = EXT3_I(inode);
+ struct ext4_inode *raw_inode = ext4_raw_inode(iloc);
+ struct ext4_inode_info *ei = EXT4_I(inode);
struct buffer_head *bh = iloc->bh;
int err = 0, rc, block;
/* For fields not not tracking in the in-memory inode,
* initialise them to zero for new inodes. */
- if (ei->i_state & EXT3_STATE_NEW)
- memset(raw_inode, 0, EXT3_SB(inode->i_sb)->s_inode_size);
+ if (ei->i_state & EXT4_STATE_NEW)
+ memset(raw_inode, 0, EXT4_SB(inode->i_sb)->s_inode_size);
raw_inode->i_mode = cpu_to_le16(inode->i_mode);
if(!(test_opt(inode->i_sb, NO_UID32))) {
raw_inode->i_blocks = cpu_to_le32(inode->i_blocks);
raw_inode->i_dtime = cpu_to_le32(ei->i_dtime);
raw_inode->i_flags = cpu_to_le32(ei->i_flags);
-#ifdef EXT3_FRAGMENTS
+#ifdef EXT4_FRAGMENTS
raw_inode->i_faddr = cpu_to_le32(ei->i_faddr);
raw_inode->i_frag = ei->i_frag_no;
raw_inode->i_fsize = ei->i_frag_size;
cpu_to_le32(ei->i_disksize >> 32);
if (ei->i_disksize > 0x7fffffffULL) {
struct super_block *sb = inode->i_sb;
- if (!EXT3_HAS_RO_COMPAT_FEATURE(sb,
- EXT3_FEATURE_RO_COMPAT_LARGE_FILE) ||
- EXT3_SB(sb)->s_es->s_rev_level ==
- cpu_to_le32(EXT3_GOOD_OLD_REV)) {
+ if (!EXT4_HAS_RO_COMPAT_FEATURE(sb,
+ EXT4_FEATURE_RO_COMPAT_LARGE_FILE) ||
+ EXT4_SB(sb)->s_es->s_rev_level ==
+ cpu_to_le32(EXT4_GOOD_OLD_REV)) {
/* If this is the first large file
* created, add a flag to the superblock.
*/
- err = ext3_journal_get_write_access(handle,
- EXT3_SB(sb)->s_sbh);
+ err = ext4_journal_get_write_access(handle,
+ EXT4_SB(sb)->s_sbh);
if (err)
goto out_brelse;
- ext3_update_dynamic_rev(sb);
- EXT3_SET_RO_COMPAT_FEATURE(sb,
- EXT3_FEATURE_RO_COMPAT_LARGE_FILE);
+ ext4_update_dynamic_rev(sb);
+ EXT4_SET_RO_COMPAT_FEATURE(sb,
+ EXT4_FEATURE_RO_COMPAT_LARGE_FILE);
sb->s_dirt = 1;
handle->h_sync = 1;
- err = ext3_journal_dirty_metadata(handle,
- EXT3_SB(sb)->s_sbh);
+ err = ext4_journal_dirty_metadata(handle,
+ EXT4_SB(sb)->s_sbh);
}
}
}
cpu_to_le32(new_encode_dev(inode->i_rdev));
raw_inode->i_block[2] = 0;
}
- } else for (block = 0; block < EXT3_N_BLOCKS; block++)
+ } else for (block = 0; block < EXT4_N_BLOCKS; block++)
raw_inode->i_block[block] = ei->i_data[block];
if (ei->i_extra_isize)
raw_inode->i_extra_isize = cpu_to_le16(ei->i_extra_isize);
- BUFFER_TRACE(bh, "call ext3_journal_dirty_metadata");
- rc = ext3_journal_dirty_metadata(handle, bh);
+ BUFFER_TRACE(bh, "call ext4_journal_dirty_metadata");
+ rc = ext4_journal_dirty_metadata(handle, bh);
if (!err)
err = rc;
- ei->i_state &= ~EXT3_STATE_NEW;
+ ei->i_state &= ~EXT4_STATE_NEW;
out_brelse:
brelse (bh);
- ext3_std_error(inode->i_sb, err);
+ ext4_std_error(inode->i_sb, err);
return err;
}
/*
- * ext3_write_inode()
+ * ext4_write_inode()
*
* We are called from a few places:
*
*
* In all cases it is actually safe for us to return without doing anything,
* because the inode has been copied into a raw inode buffer in
- * ext3_mark_inode_dirty(). This is a correctness thing for O_SYNC and for
+ * ext4_mark_inode_dirty(). This is a correctness thing for O_SYNC and for
* knfsd.
*
* Note that we are absolutely dependent upon all inode dirtiers doing the
* `stuff()' is running, and the new i_size will be lost. Plus the inode
* will no longer be on the superblock's dirty inode list.
*/
-int ext3_write_inode(struct inode *inode, int wait)
+int ext4_write_inode(struct inode *inode, int wait)
{
if (current->flags & PF_MEMALLOC)
return 0;
- if (ext3_journal_current_handle()) {
+ if (ext4_journal_current_handle()) {
jbd_debug(0, "called recursively, non-PF_MEMALLOC!\n");
dump_stack();
return -EIO;
if (!wait)
return 0;
- return ext3_force_commit(inode->i_sb);
+ return ext4_force_commit(inode->i_sb);
}
/*
- * ext3_setattr()
+ * ext4_setattr()
*
* Called from notify_change.
*
*
* Called with inode->sem down.
*/
-int ext3_setattr(struct dentry *dentry, struct iattr *attr)
+int ext4_setattr(struct dentry *dentry, struct iattr *attr)
{
struct inode *inode = dentry->d_inode;
int error, rc = 0;
/* (user+group)*(old+new) structure, inode write (sb,
* inode block, ? - but truncate inode update has it) */
- handle = ext3_journal_start(inode, 2*(EXT3_QUOTA_INIT_BLOCKS(inode->i_sb)+
- EXT3_QUOTA_DEL_BLOCKS(inode->i_sb))+3);
+ handle = ext4_journal_start(inode, 2*(EXT4_QUOTA_INIT_BLOCKS(inode->i_sb)+
+ EXT4_QUOTA_DEL_BLOCKS(inode->i_sb))+3);
if (IS_ERR(handle)) {
error = PTR_ERR(handle);
goto err_out;
}
error = DQUOT_TRANSFER(inode, attr) ? -EDQUOT : 0;
if (error) {
- ext3_journal_stop(handle);
+ ext4_journal_stop(handle);
return error;
}
/* Update corresponding info in inode so that everything is in
inode->i_uid = attr->ia_uid;
if (attr->ia_valid & ATTR_GID)
inode->i_gid = attr->ia_gid;
- error = ext3_mark_inode_dirty(handle, inode);
- ext3_journal_stop(handle);
+ error = ext4_mark_inode_dirty(handle, inode);
+ ext4_journal_stop(handle);
}
if (S_ISREG(inode->i_mode) &&
attr->ia_valid & ATTR_SIZE && attr->ia_size < inode->i_size) {
handle_t *handle;
- handle = ext3_journal_start(inode, 3);
+ handle = ext4_journal_start(inode, 3);
if (IS_ERR(handle)) {
error = PTR_ERR(handle);
goto err_out;
}
- error = ext3_orphan_add(handle, inode);
- EXT3_I(inode)->i_disksize = attr->ia_size;
- rc = ext3_mark_inode_dirty(handle, inode);
+ error = ext4_orphan_add(handle, inode);
+ EXT4_I(inode)->i_disksize = attr->ia_size;
+ rc = ext4_mark_inode_dirty(handle, inode);
if (!error)
error = rc;
- ext3_journal_stop(handle);
+ ext4_journal_stop(handle);
}
rc = inode_setattr(inode, attr);
- /* If inode_setattr's call to ext3_truncate failed to get a
+ /* If inode_setattr's call to ext4_truncate failed to get a
* transaction handle at all, we need to clean up the in-core
* orphan list manually. */
if (inode->i_nlink)
- ext3_orphan_del(NULL, inode);
+ ext4_orphan_del(NULL, inode);
if (!rc && (ia_valid & ATTR_MODE))
- rc = ext3_acl_chmod(inode);
+ rc = ext4_acl_chmod(inode);
err_out:
- ext3_std_error(inode->i_sb, error);
+ ext4_std_error(inode->i_sb, error);
if (!error)
error = rc;
return error;
* N+5 group descriptor summary blocks
* 1 inode block
* 1 superblock.
- * 2 * EXT3_SINGLEDATA_TRANS_BLOCKS for the quote files
+ * 2 * EXT4_SINGLEDATA_TRANS_BLOCKS for the quote files
*
- * 3 * (N + 5) + 2 + 2 * EXT3_SINGLEDATA_TRANS_BLOCKS
+ * 3 * (N + 5) + 2 + 2 * EXT4_SINGLEDATA_TRANS_BLOCKS
*
* With ordered or writeback data it's the same, less the N data blocks.
*
* block and work out the exact number of indirects which are touched. Pah.
*/
-static int ext3_writepage_trans_blocks(struct inode *inode)
+static int ext4_writepage_trans_blocks(struct inode *inode)
{
- int bpp = ext3_journal_blocks_per_page(inode);
- int indirects = (EXT3_NDIR_BLOCKS % bpp) ? 5 : 3;
+ int bpp = ext4_journal_blocks_per_page(inode);
+ int indirects = (EXT4_NDIR_BLOCKS % bpp) ? 5 : 3;
int ret;
- if (ext3_should_journal_data(inode))
+ if (ext4_should_journal_data(inode))
ret = 3 * (bpp + indirects) + 2;
else
ret = 2 * (bpp + indirects) + 2;
#ifdef CONFIG_QUOTA
/* We know that structure was already allocated during DQUOT_INIT so
* we will be updating only the data blocks + inodes */
- ret += 2*EXT3_QUOTA_TRANS_BLOCKS(inode->i_sb);
+ ret += 2*EXT4_QUOTA_TRANS_BLOCKS(inode->i_sb);
#endif
return ret;
}
/*
- * The caller must have previously called ext3_reserve_inode_write().
+ * The caller must have previously called ext4_reserve_inode_write().
* Give this, we know that the caller already has write access to iloc->bh.
*/
-int ext3_mark_iloc_dirty(handle_t *handle,
- struct inode *inode, struct ext3_iloc *iloc)
+int ext4_mark_iloc_dirty(handle_t *handle,
+ struct inode *inode, struct ext4_iloc *iloc)
{
int err = 0;
/* the do_update_inode consumes one bh->b_count */
get_bh(iloc->bh);
- /* ext3_do_update_inode() does journal_dirty_metadata */
- err = ext3_do_update_inode(handle, inode, iloc);
+ /* ext4_do_update_inode() does journal_dirty_metadata */
+ err = ext4_do_update_inode(handle, inode, iloc);
put_bh(iloc->bh);
return err;
}
*/
int
-ext3_reserve_inode_write(handle_t *handle, struct inode *inode,
- struct ext3_iloc *iloc)
+ext4_reserve_inode_write(handle_t *handle, struct inode *inode,
+ struct ext4_iloc *iloc)
{
int err = 0;
if (handle) {
- err = ext3_get_inode_loc(inode, iloc);
+ err = ext4_get_inode_loc(inode, iloc);
if (!err) {
BUFFER_TRACE(iloc->bh, "get_write_access");
- err = ext3_journal_get_write_access(handle, iloc->bh);
+ err = ext4_journal_get_write_access(handle, iloc->bh);
if (err) {
brelse(iloc->bh);
iloc->bh = NULL;
}
}
}
- ext3_std_error(inode->i_sb, err);
+ ext4_std_error(inode->i_sb, err);
return err;
}
* to do a write_super() to free up some memory. It has the desired
* effect.
*/
-int ext3_mark_inode_dirty(handle_t *handle, struct inode *inode)
+int ext4_mark_inode_dirty(handle_t *handle, struct inode *inode)
{
- struct ext3_iloc iloc;
+ struct ext4_iloc iloc;
int err;
might_sleep();
- err = ext3_reserve_inode_write(handle, inode, &iloc);
+ err = ext4_reserve_inode_write(handle, inode, &iloc);
if (!err)
- err = ext3_mark_iloc_dirty(handle, inode, &iloc);
+ err = ext4_mark_iloc_dirty(handle, inode, &iloc);
return err;
}
/*
- * ext3_dirty_inode() is called from __mark_inode_dirty()
+ * ext4_dirty_inode() is called from __mark_inode_dirty()
*
* We're really interested in the case where a file is being extended.
* i_size has been changed by generic_commit_write() and we thus need
* so would cause a commit on atime updates, which we don't bother doing.
* We handle synchronous inodes at the highest possible level.
*/
-void ext3_dirty_inode(struct inode *inode)
+void ext4_dirty_inode(struct inode *inode)
{
- handle_t *current_handle = ext3_journal_current_handle();
+ handle_t *current_handle = ext4_journal_current_handle();
handle_t *handle;
- handle = ext3_journal_start(inode, 2);
+ handle = ext4_journal_start(inode, 2);
if (IS_ERR(handle))
goto out;
if (current_handle &&
} else {
jbd_debug(5, "marking dirty. outer handle=%p\n",
current_handle);
- ext3_mark_inode_dirty(handle, inode);
+ ext4_mark_inode_dirty(handle, inode);
}
- ext3_journal_stop(handle);
+ ext4_journal_stop(handle);
out:
return;
}
/*
* Bind an inode's backing buffer_head into this transaction, to prevent
* it from being flushed to disk early. Unlike
- * ext3_reserve_inode_write, this leaves behind no bh reference and
+ * ext4_reserve_inode_write, this leaves behind no bh reference and
* returns no iloc structure, so the caller needs to repeat the iloc
* lookup to mark the inode dirty later.
*/
-static int ext3_pin_inode(handle_t *handle, struct inode *inode)
+static int ext4_pin_inode(handle_t *handle, struct inode *inode)
{
- struct ext3_iloc iloc;
+ struct ext4_iloc iloc;
int err = 0;
if (handle) {
- err = ext3_get_inode_loc(inode, &iloc);
+ err = ext4_get_inode_loc(inode, &iloc);
if (!err) {
BUFFER_TRACE(iloc.bh, "get_write_access");
err = journal_get_write_access(handle, iloc.bh);
if (!err)
- err = ext3_journal_dirty_metadata(handle,
+ err = ext4_journal_dirty_metadata(handle,
iloc.bh);
brelse(iloc.bh);
}
}
- ext3_std_error(inode->i_sb, err);
+ ext4_std_error(inode->i_sb, err);
return err;
}
#endif
-int ext3_change_inode_journal_flag(struct inode *inode, int val)
+int ext4_change_inode_journal_flag(struct inode *inode, int val)
{
journal_t *journal;
handle_t *handle;
* nobody is changing anything.
*/
- journal = EXT3_JOURNAL(inode);
+ journal = EXT4_JOURNAL(inode);
if (is_journal_aborted(journal) || IS_RDONLY(inode))
return -EROFS;
*/
if (val)
- EXT3_I(inode)->i_flags |= EXT3_JOURNAL_DATA_FL;
+ EXT4_I(inode)->i_flags |= EXT4_JOURNAL_DATA_FL;
else
- EXT3_I(inode)->i_flags &= ~EXT3_JOURNAL_DATA_FL;
- ext3_set_aops(inode);
+ EXT4_I(inode)->i_flags &= ~EXT4_JOURNAL_DATA_FL;
+ ext4_set_aops(inode);
journal_unlock_updates(journal);
/* Finally we can mark the inode as dirty. */
- handle = ext3_journal_start(inode, 1);
+ handle = ext4_journal_start(inode, 1);
if (IS_ERR(handle))
return PTR_ERR(handle);
- err = ext3_mark_inode_dirty(handle, inode);
+ err = ext4_mark_inode_dirty(handle, inode);
handle->h_sync = 1;
- ext3_journal_stop(handle);
- ext3_std_error(inode->i_sb, err);
+ ext4_journal_stop(handle);
+ ext4_std_error(inode->i_sb, err);
return err;
}
/*
- * linux/fs/ext3/ioctl.c
+ * linux/fs/ext4/ioctl.c
*
* Copyright (C) 1993, 1994, 1995
* Remy Card (card@masi.ibp.fr)
#include <linux/fs.h>
#include <linux/jbd.h>
#include <linux/capability.h>
-#include <linux/ext3_fs.h>
-#include <linux/ext3_jbd.h>
+#include <linux/ext4_fs.h>
+#include <linux/ext4_jbd.h>
#include <linux/time.h>
#include <linux/compat.h>
#include <linux/smp_lock.h>
#include <asm/uaccess.h>
-int ext3_ioctl (struct inode * inode, struct file * filp, unsigned int cmd,
+int ext4_ioctl (struct inode * inode, struct file * filp, unsigned int cmd,
unsigned long arg)
{
- struct ext3_inode_info *ei = EXT3_I(inode);
+ struct ext4_inode_info *ei = EXT4_I(inode);
unsigned int flags;
unsigned short rsv_window_size;
- ext3_debug ("cmd = %u, arg = %lu\n", cmd, arg);
+ ext4_debug ("cmd = %u, arg = %lu\n", cmd, arg);
switch (cmd) {
- case EXT3_IOC_GETFLAGS:
- flags = ei->i_flags & EXT3_FL_USER_VISIBLE;
+ case EXT4_IOC_GETFLAGS:
+ flags = ei->i_flags & EXT4_FL_USER_VISIBLE;
return put_user(flags, (int __user *) arg);
- case EXT3_IOC_SETFLAGS: {
+ case EXT4_IOC_SETFLAGS: {
handle_t *handle = NULL;
int err;
- struct ext3_iloc iloc;
+ struct ext4_iloc iloc;
unsigned int oldflags;
unsigned int jflag;
return -EFAULT;
if (!S_ISDIR(inode->i_mode))
- flags &= ~EXT3_DIRSYNC_FL;
+ flags &= ~EXT4_DIRSYNC_FL;
mutex_lock(&inode->i_mutex);
oldflags = ei->i_flags;
/* The JOURNAL_DATA flag is modifiable only by root */
- jflag = flags & EXT3_JOURNAL_DATA_FL;
+ jflag = flags & EXT4_JOURNAL_DATA_FL;
/*
* The IMMUTABLE and APPEND_ONLY flags can only be changed by
*
* This test looks nicer. Thanks to Pauline Middelink
*/
- if ((flags ^ oldflags) & (EXT3_APPEND_FL | EXT3_IMMUTABLE_FL)) {
+ if ((flags ^ oldflags) & (EXT4_APPEND_FL | EXT4_IMMUTABLE_FL)) {
if (!capable(CAP_LINUX_IMMUTABLE)) {
mutex_unlock(&inode->i_mutex);
return -EPERM;
* The JOURNAL_DATA flag can only be changed by
* the relevant capability.
*/
- if ((jflag ^ oldflags) & (EXT3_JOURNAL_DATA_FL)) {
+ if ((jflag ^ oldflags) & (EXT4_JOURNAL_DATA_FL)) {
if (!capable(CAP_SYS_RESOURCE)) {
mutex_unlock(&inode->i_mutex);
return -EPERM;
}
- handle = ext3_journal_start(inode, 1);
+ handle = ext4_journal_start(inode, 1);
if (IS_ERR(handle)) {
mutex_unlock(&inode->i_mutex);
return PTR_ERR(handle);
}
if (IS_SYNC(inode))
handle->h_sync = 1;
- err = ext3_reserve_inode_write(handle, inode, &iloc);
+ err = ext4_reserve_inode_write(handle, inode, &iloc);
if (err)
goto flags_err;
- flags = flags & EXT3_FL_USER_MODIFIABLE;
- flags |= oldflags & ~EXT3_FL_USER_MODIFIABLE;
+ flags = flags & EXT4_FL_USER_MODIFIABLE;
+ flags |= oldflags & ~EXT4_FL_USER_MODIFIABLE;
ei->i_flags = flags;
- ext3_set_inode_flags(inode);
+ ext4_set_inode_flags(inode);
inode->i_ctime = CURRENT_TIME_SEC;
- err = ext3_mark_iloc_dirty(handle, inode, &iloc);
+ err = ext4_mark_iloc_dirty(handle, inode, &iloc);
flags_err:
- ext3_journal_stop(handle);
+ ext4_journal_stop(handle);
if (err) {
mutex_unlock(&inode->i_mutex);
return err;
}
- if ((jflag ^ oldflags) & (EXT3_JOURNAL_DATA_FL))
- err = ext3_change_inode_journal_flag(inode, jflag);
+ if ((jflag ^ oldflags) & (EXT4_JOURNAL_DATA_FL))
+ err = ext4_change_inode_journal_flag(inode, jflag);
mutex_unlock(&inode->i_mutex);
return err;
}
- case EXT3_IOC_GETVERSION:
- case EXT3_IOC_GETVERSION_OLD:
+ case EXT4_IOC_GETVERSION:
+ case EXT4_IOC_GETVERSION_OLD:
return put_user(inode->i_generation, (int __user *) arg);
- case EXT3_IOC_SETVERSION:
- case EXT3_IOC_SETVERSION_OLD: {
+ case EXT4_IOC_SETVERSION:
+ case EXT4_IOC_SETVERSION_OLD: {
handle_t *handle;
- struct ext3_iloc iloc;
+ struct ext4_iloc iloc;
__u32 generation;
int err;
if (get_user(generation, (int __user *) arg))
return -EFAULT;
- handle = ext3_journal_start(inode, 1);
+ handle = ext4_journal_start(inode, 1);
if (IS_ERR(handle))
return PTR_ERR(handle);
- err = ext3_reserve_inode_write(handle, inode, &iloc);
+ err = ext4_reserve_inode_write(handle, inode, &iloc);
if (err == 0) {
inode->i_ctime = CURRENT_TIME_SEC;
inode->i_generation = generation;
- err = ext3_mark_iloc_dirty(handle, inode, &iloc);
+ err = ext4_mark_iloc_dirty(handle, inode, &iloc);
}
- ext3_journal_stop(handle);
+ ext4_journal_stop(handle);
return err;
}
#ifdef CONFIG_JBD_DEBUG
- case EXT3_IOC_WAIT_FOR_READONLY:
+ case EXT4_IOC_WAIT_FOR_READONLY:
/*
* This is racy - by the time we're woken up and running,
* the superblock could be released. And the module could
int ret = 0;
set_current_state(TASK_INTERRUPTIBLE);
- add_wait_queue(&EXT3_SB(sb)->ro_wait_queue, &wait);
- if (timer_pending(&EXT3_SB(sb)->turn_ro_timer)) {
+ add_wait_queue(&EXT4_SB(sb)->ro_wait_queue, &wait);
+ if (timer_pending(&EXT4_SB(sb)->turn_ro_timer)) {
schedule();
ret = 1;
}
- remove_wait_queue(&EXT3_SB(sb)->ro_wait_queue, &wait);
+ remove_wait_queue(&EXT4_SB(sb)->ro_wait_queue, &wait);
return ret;
}
#endif
- case EXT3_IOC_GETRSVSZ:
+ case EXT4_IOC_GETRSVSZ:
if (test_opt(inode->i_sb, RESERVATION)
&& S_ISREG(inode->i_mode)
&& ei->i_block_alloc_info) {
return put_user(rsv_window_size, (int __user *)arg);
}
return -ENOTTY;
- case EXT3_IOC_SETRSVSZ: {
+ case EXT4_IOC_SETRSVSZ: {
if (!test_opt(inode->i_sb, RESERVATION) ||!S_ISREG(inode->i_mode))
return -ENOTTY;
if (get_user(rsv_window_size, (int __user *)arg))
return -EFAULT;
- if (rsv_window_size > EXT3_MAX_RESERVE_BLOCKS)
- rsv_window_size = EXT3_MAX_RESERVE_BLOCKS;
+ if (rsv_window_size > EXT4_MAX_RESERVE_BLOCKS)
+ rsv_window_size = EXT4_MAX_RESERVE_BLOCKS;
/*
* need to allocate reservation structure for this inode
*/
mutex_lock(&ei->truncate_mutex);
if (!ei->i_block_alloc_info)
- ext3_init_block_alloc_info(inode);
+ ext4_init_block_alloc_info(inode);
if (ei->i_block_alloc_info){
- struct ext3_reserve_window_node *rsv = &ei->i_block_alloc_info->rsv_window_node;
+ struct ext4_reserve_window_node *rsv = &ei->i_block_alloc_info->rsv_window_node;
rsv->rsv_goal_size = rsv_window_size;
}
mutex_unlock(&ei->truncate_mutex);
return 0;
}
- case EXT3_IOC_GROUP_EXTEND: {
- ext3_fsblk_t n_blocks_count;
+ case EXT4_IOC_GROUP_EXTEND: {
+ ext4_fsblk_t n_blocks_count;
struct super_block *sb = inode->i_sb;
int err;
if (get_user(n_blocks_count, (__u32 __user *)arg))
return -EFAULT;
- err = ext3_group_extend(sb, EXT3_SB(sb)->s_es, n_blocks_count);
- journal_lock_updates(EXT3_SB(sb)->s_journal);
- journal_flush(EXT3_SB(sb)->s_journal);
- journal_unlock_updates(EXT3_SB(sb)->s_journal);
+ err = ext4_group_extend(sb, EXT4_SB(sb)->s_es, n_blocks_count);
+ journal_lock_updates(EXT4_SB(sb)->s_journal);
+ journal_flush(EXT4_SB(sb)->s_journal);
+ journal_unlock_updates(EXT4_SB(sb)->s_journal);
return err;
}
- case EXT3_IOC_GROUP_ADD: {
- struct ext3_new_group_data input;
+ case EXT4_IOC_GROUP_ADD: {
+ struct ext4_new_group_data input;
struct super_block *sb = inode->i_sb;
int err;
if (IS_RDONLY(inode))
return -EROFS;
- if (copy_from_user(&input, (struct ext3_new_group_input __user *)arg,
+ if (copy_from_user(&input, (struct ext4_new_group_input __user *)arg,
sizeof(input)))
return -EFAULT;
- err = ext3_group_add(sb, &input);
- journal_lock_updates(EXT3_SB(sb)->s_journal);
- journal_flush(EXT3_SB(sb)->s_journal);
- journal_unlock_updates(EXT3_SB(sb)->s_journal);
+ err = ext4_group_add(sb, &input);
+ journal_lock_updates(EXT4_SB(sb)->s_journal);
+ journal_flush(EXT4_SB(sb)->s_journal);
+ journal_unlock_updates(EXT4_SB(sb)->s_journal);
return err;
}
}
#ifdef CONFIG_COMPAT
-long ext3_compat_ioctl(struct file *file, unsigned int cmd, unsigned long arg)
+long ext4_compat_ioctl(struct file *file, unsigned int cmd, unsigned long arg)
{
struct inode *inode = file->f_dentry->d_inode;
int ret;
/* These are just misnamed, they actually get/put from/to user an int */
switch (cmd) {
- case EXT3_IOC32_GETFLAGS:
- cmd = EXT3_IOC_GETFLAGS;
+ case EXT4_IOC32_GETFLAGS:
+ cmd = EXT4_IOC_GETFLAGS;
break;
- case EXT3_IOC32_SETFLAGS:
- cmd = EXT3_IOC_SETFLAGS;
+ case EXT4_IOC32_SETFLAGS:
+ cmd = EXT4_IOC_SETFLAGS;
break;
- case EXT3_IOC32_GETVERSION:
- cmd = EXT3_IOC_GETVERSION;
+ case EXT4_IOC32_GETVERSION:
+ cmd = EXT4_IOC_GETVERSION;
break;
- case EXT3_IOC32_SETVERSION:
- cmd = EXT3_IOC_SETVERSION;
+ case EXT4_IOC32_SETVERSION:
+ cmd = EXT4_IOC_SETVERSION;
break;
- case EXT3_IOC32_GROUP_EXTEND:
- cmd = EXT3_IOC_GROUP_EXTEND;
+ case EXT4_IOC32_GROUP_EXTEND:
+ cmd = EXT4_IOC_GROUP_EXTEND;
break;
- case EXT3_IOC32_GETVERSION_OLD:
- cmd = EXT3_IOC_GETVERSION_OLD;
+ case EXT4_IOC32_GETVERSION_OLD:
+ cmd = EXT4_IOC_GETVERSION_OLD;
break;
- case EXT3_IOC32_SETVERSION_OLD:
- cmd = EXT3_IOC_SETVERSION_OLD;
+ case EXT4_IOC32_SETVERSION_OLD:
+ cmd = EXT4_IOC_SETVERSION_OLD;
break;
#ifdef CONFIG_JBD_DEBUG
- case EXT3_IOC32_WAIT_FOR_READONLY:
- cmd = EXT3_IOC_WAIT_FOR_READONLY;
+ case EXT4_IOC32_WAIT_FOR_READONLY:
+ cmd = EXT4_IOC_WAIT_FOR_READONLY;
break;
#endif
- case EXT3_IOC32_GETRSVSZ:
- cmd = EXT3_IOC_GETRSVSZ;
+ case EXT4_IOC32_GETRSVSZ:
+ cmd = EXT4_IOC_GETRSVSZ;
break;
- case EXT3_IOC32_SETRSVSZ:
- cmd = EXT3_IOC_SETRSVSZ;
+ case EXT4_IOC32_SETRSVSZ:
+ cmd = EXT4_IOC_SETRSVSZ;
break;
- case EXT3_IOC_GROUP_ADD:
+ case EXT4_IOC_GROUP_ADD:
break;
default:
return -ENOIOCTLCMD;
}
lock_kernel();
- ret = ext3_ioctl(inode, file, cmd, (unsigned long) compat_ptr(arg));
+ ret = ext4_ioctl(inode, file, cmd, (unsigned long) compat_ptr(arg));
unlock_kernel();
return ret;
}
/*
- * linux/fs/ext3/namei.c
+ * linux/fs/ext4/namei.c
*
* Copyright (C) 1992, 1993, 1994, 1995
* Remy Card (card@masi.ibp.fr)
#include <linux/pagemap.h>
#include <linux/jbd.h>
#include <linux/time.h>
-#include <linux/ext3_fs.h>
-#include <linux/ext3_jbd.h>
+#include <linux/ext4_fs.h>
+#include <linux/ext4_jbd.h>
#include <linux/fcntl.h>
#include <linux/stat.h>
#include <linux/string.h>
#define NAMEI_RA_SIZE (NAMEI_RA_CHUNKS * NAMEI_RA_BLOCKS)
#define NAMEI_RA_INDEX(c,b) (((c) * NAMEI_RA_BLOCKS) + (b))
-static struct buffer_head *ext3_append(handle_t *handle,
+static struct buffer_head *ext4_append(handle_t *handle,
struct inode *inode,
u32 *block, int *err)
{
*block = inode->i_size >> inode->i_sb->s_blocksize_bits;
- if ((bh = ext3_bread(handle, inode, *block, 1, err))) {
+ if ((bh = ext4_bread(handle, inode, *block, 1, err))) {
inode->i_size += inode->i_sb->s_blocksize;
- EXT3_I(inode)->i_disksize = inode->i_size;
- ext3_journal_get_write_access(handle,bh);
+ EXT4_I(inode)->i_disksize = inode->i_size;
+ ext4_journal_get_write_access(handle,bh);
}
return bh;
}
u32 offs;
};
-#ifdef CONFIG_EXT3_INDEX
+#ifdef CONFIG_EXT4_INDEX
static inline unsigned dx_get_block (struct dx_entry *entry);
static void dx_set_block (struct dx_entry *entry, unsigned value);
static inline unsigned dx_get_hash (struct dx_entry *entry);
struct dx_frame *frame,
int *err);
static void dx_release (struct dx_frame *frames);
-static int dx_make_map (struct ext3_dir_entry_2 *de, int size,
+static int dx_make_map (struct ext4_dir_entry_2 *de, int size,
struct dx_hash_info *hinfo, struct dx_map_entry map[]);
static void dx_sort_map(struct dx_map_entry *map, unsigned count);
-static struct ext3_dir_entry_2 *dx_move_dirents (char *from, char *to,
+static struct ext4_dir_entry_2 *dx_move_dirents (char *from, char *to,
struct dx_map_entry *offsets, int count);
-static struct ext3_dir_entry_2* dx_pack_dirents (char *base, int size);
+static struct ext4_dir_entry_2* dx_pack_dirents (char *base, int size);
static void dx_insert_block (struct dx_frame *frame, u32 hash, u32 block);
-static int ext3_htree_next_block(struct inode *dir, __u32 hash,
+static int ext4_htree_next_block(struct inode *dir, __u32 hash,
struct dx_frame *frame,
struct dx_frame *frames,
__u32 *start_hash);
-static struct buffer_head * ext3_dx_find_entry(struct dentry *dentry,
- struct ext3_dir_entry_2 **res_dir, int *err);
-static int ext3_dx_add_entry(handle_t *handle, struct dentry *dentry,
+static struct buffer_head * ext4_dx_find_entry(struct dentry *dentry,
+ struct ext4_dir_entry_2 **res_dir, int *err);
+static int ext4_dx_add_entry(handle_t *handle, struct dentry *dentry,
struct inode *inode);
/*
static inline unsigned dx_root_limit (struct inode *dir, unsigned infosize)
{
- unsigned entry_space = dir->i_sb->s_blocksize - EXT3_DIR_REC_LEN(1) -
- EXT3_DIR_REC_LEN(2) - infosize;
+ unsigned entry_space = dir->i_sb->s_blocksize - EXT4_DIR_REC_LEN(1) -
+ EXT4_DIR_REC_LEN(2) - infosize;
return 0? 20: entry_space / sizeof(struct dx_entry);
}
static inline unsigned dx_node_limit (struct inode *dir)
{
- unsigned entry_space = dir->i_sb->s_blocksize - EXT3_DIR_REC_LEN(0);
+ unsigned entry_space = dir->i_sb->s_blocksize - EXT4_DIR_REC_LEN(0);
return 0? 22: entry_space / sizeof(struct dx_entry);
}
unsigned bcount;
};
-static struct stats dx_show_leaf(struct dx_hash_info *hinfo, struct ext3_dir_entry_2 *de,
+static struct stats dx_show_leaf(struct dx_hash_info *hinfo, struct ext4_dir_entry_2 *de,
int size, int show_names)
{
unsigned names = 0, space = 0;
int len = de->name_len;
char *name = de->name;
while (len--) printk("%c", *name++);
- ext3fs_dirhash(de->name, de->name_len, &h);
+ ext4fs_dirhash(de->name, de->name_len, &h);
printk(":%x.%u ", h.hash,
((char *) de - base));
}
- space += EXT3_DIR_REC_LEN(de->name_len);
+ space += EXT4_DIR_REC_LEN(de->name_len);
names++;
}
- de = (struct ext3_dir_entry_2 *) ((char *) de + le16_to_cpu(de->rec_len));
+ de = (struct ext4_dir_entry_2 *) ((char *) de + le16_to_cpu(de->rec_len));
}
printk("(%i)\n", names);
return (struct stats) { names, space, 1 };
u32 range = i < count - 1? (dx_get_hash(entries + 1) - hash): ~hash;
struct stats stats;
printk("%s%3u:%03u hash %8x/%8x ",levels?"":" ", i, block, hash, range);
- if (!(bh = ext3_bread (NULL,dir, block, 0,&err))) continue;
+ if (!(bh = ext4_bread (NULL,dir, block, 0,&err))) continue;
stats = levels?
dx_show_entries(hinfo, dir, ((struct dx_node *) bh->b_data)->entries, levels - 1):
- dx_show_leaf(hinfo, (struct ext3_dir_entry_2 *) bh->b_data, blocksize, 0);
+ dx_show_leaf(hinfo, (struct ext4_dir_entry_2 *) bh->b_data, blocksize, 0);
names += stats.names;
space += stats.space;
bcount += stats.bcount;
frame->bh = NULL;
if (dentry)
dir = dentry->d_parent->d_inode;
- if (!(bh = ext3_bread (NULL,dir, 0, 0, err)))
+ if (!(bh = ext4_bread (NULL,dir, 0, 0, err)))
goto fail;
root = (struct dx_root *) bh->b_data;
if (root->info.hash_version != DX_HASH_TEA &&
root->info.hash_version != DX_HASH_HALF_MD4 &&
root->info.hash_version != DX_HASH_LEGACY) {
- ext3_warning(dir->i_sb, __FUNCTION__,
+ ext4_warning(dir->i_sb, __FUNCTION__,
"Unrecognised inode hash code %d",
root->info.hash_version);
brelse(bh);
goto fail;
}
hinfo->hash_version = root->info.hash_version;
- hinfo->seed = EXT3_SB(dir->i_sb)->s_hash_seed;
+ hinfo->seed = EXT4_SB(dir->i_sb)->s_hash_seed;
if (dentry)
- ext3fs_dirhash(dentry->d_name.name, dentry->d_name.len, hinfo);
+ ext4fs_dirhash(dentry->d_name.name, dentry->d_name.len, hinfo);
hash = hinfo->hash;
if (root->info.unused_flags & 1) {
- ext3_warning(dir->i_sb, __FUNCTION__,
+ ext4_warning(dir->i_sb, __FUNCTION__,
"Unimplemented inode hash flags: %#06x",
root->info.unused_flags);
brelse(bh);
}
if ((indirect = root->info.indirect_levels) > 1) {
- ext3_warning(dir->i_sb, __FUNCTION__,
+ ext4_warning(dir->i_sb, __FUNCTION__,
"Unimplemented inode hash depth: %#06x",
root->info.indirect_levels);
brelse(bh);
frame->entries = entries;
frame->at = at;
if (!indirect--) return frame;
- if (!(bh = ext3_bread (NULL,dir, dx_get_block(at), 0, err)))
+ if (!(bh = ext4_bread (NULL,dir, dx_get_block(at), 0, err)))
goto fail2;
at = entries = ((struct dx_node *) bh->b_data)->entries;
assert (dx_get_limit(entries) == dx_node_limit (dir));
* If start_hash is non-null, it will be filled in with the starting
* hash of the next page.
*/
-static int ext3_htree_next_block(struct inode *dir, __u32 hash,
+static int ext4_htree_next_block(struct inode *dir, __u32 hash,
struct dx_frame *frame,
struct dx_frame *frames,
__u32 *start_hash)
* block so no check is necessary
*/
while (num_frames--) {
- if (!(bh = ext3_bread(NULL, dir, dx_get_block(p->at),
+ if (!(bh = ext4_bread(NULL, dir, dx_get_block(p->at),
0, &err)))
return err; /* Failure */
p++;
/*
* p is at least 6 bytes before the end of page
*/
-static inline struct ext3_dir_entry_2 *ext3_next_entry(struct ext3_dir_entry_2 *p)
+static inline struct ext4_dir_entry_2 *ext4_next_entry(struct ext4_dir_entry_2 *p)
{
- return (struct ext3_dir_entry_2 *)((char*)p + le16_to_cpu(p->rec_len));
+ return (struct ext4_dir_entry_2 *)((char*)p + le16_to_cpu(p->rec_len));
}
/*
__u32 start_hash, __u32 start_minor_hash)
{
struct buffer_head *bh;
- struct ext3_dir_entry_2 *de, *top;
+ struct ext4_dir_entry_2 *de, *top;
int err, count = 0;
dxtrace(printk("In htree dirblock_to_tree: block %d\n", block));
- if (!(bh = ext3_bread (NULL, dir, block, 0, &err)))
+ if (!(bh = ext4_bread (NULL, dir, block, 0, &err)))
return err;
- de = (struct ext3_dir_entry_2 *) bh->b_data;
- top = (struct ext3_dir_entry_2 *) ((char *) de +
+ de = (struct ext4_dir_entry_2 *) bh->b_data;
+ top = (struct ext4_dir_entry_2 *) ((char *) de +
dir->i_sb->s_blocksize -
- EXT3_DIR_REC_LEN(0));
- for (; de < top; de = ext3_next_entry(de)) {
- ext3fs_dirhash(de->name, de->name_len, hinfo);
+ EXT4_DIR_REC_LEN(0));
+ for (; de < top; de = ext4_next_entry(de)) {
+ ext4fs_dirhash(de->name, de->name_len, hinfo);
if ((hinfo->hash < start_hash) ||
((hinfo->hash == start_hash) &&
(hinfo->minor_hash < start_minor_hash)))
continue;
if (de->inode == 0)
continue;
- if ((err = ext3_htree_store_dirent(dir_file,
+ if ((err = ext4_htree_store_dirent(dir_file,
hinfo->hash, hinfo->minor_hash, de)) != 0) {
brelse(bh);
return err;
* This function returns the number of entries inserted into the tree,
* or a negative error code.
*/
-int ext3_htree_fill_tree(struct file *dir_file, __u32 start_hash,
+int ext4_htree_fill_tree(struct file *dir_file, __u32 start_hash,
__u32 start_minor_hash, __u32 *next_hash)
{
struct dx_hash_info hinfo;
- struct ext3_dir_entry_2 *de;
+ struct ext4_dir_entry_2 *de;
struct dx_frame frames[2], *frame;
struct inode *dir;
int block, err;
dxtrace(printk("In htree_fill_tree, start hash: %x:%x\n", start_hash,
start_minor_hash));
dir = dir_file->f_dentry->d_inode;
- if (!(EXT3_I(dir)->i_flags & EXT3_INDEX_FL)) {
- hinfo.hash_version = EXT3_SB(dir->i_sb)->s_def_hash_version;
- hinfo.seed = EXT3_SB(dir->i_sb)->s_hash_seed;
+ if (!(EXT4_I(dir)->i_flags & EXT4_INDEX_FL)) {
+ hinfo.hash_version = EXT4_SB(dir->i_sb)->s_def_hash_version;
+ hinfo.seed = EXT4_SB(dir->i_sb)->s_hash_seed;
count = htree_dirblock_to_tree(dir_file, dir, 0, &hinfo,
start_hash, start_minor_hash);
*next_hash = ~0;
/* Add '.' and '..' from the htree header */
if (!start_hash && !start_minor_hash) {
- de = (struct ext3_dir_entry_2 *) frames[0].bh->b_data;
- if ((err = ext3_htree_store_dirent(dir_file, 0, 0, de)) != 0)
+ de = (struct ext4_dir_entry_2 *) frames[0].bh->b_data;
+ if ((err = ext4_htree_store_dirent(dir_file, 0, 0, de)) != 0)
goto errout;
count++;
}
if (start_hash < 2 || (start_hash ==2 && start_minor_hash==0)) {
- de = (struct ext3_dir_entry_2 *) frames[0].bh->b_data;
- de = ext3_next_entry(de);
- if ((err = ext3_htree_store_dirent(dir_file, 2, 0, de)) != 0)
+ de = (struct ext4_dir_entry_2 *) frames[0].bh->b_data;
+ de = ext4_next_entry(de);
+ if ((err = ext4_htree_store_dirent(dir_file, 2, 0, de)) != 0)
goto errout;
count++;
}
}
count += ret;
hashval = ~0;
- ret = ext3_htree_next_block(dir, HASH_NB_ALWAYS,
+ ret = ext4_htree_next_block(dir, HASH_NB_ALWAYS,
frame, frames, &hashval);
*next_hash = hashval;
if (ret < 0) {
* Directory block splitting, compacting
*/
-static int dx_make_map (struct ext3_dir_entry_2 *de, int size,
+static int dx_make_map (struct ext4_dir_entry_2 *de, int size,
struct dx_hash_info *hinfo, struct dx_map_entry *map_tail)
{
int count = 0;
while ((char *) de < base + size)
{
if (de->name_len && de->inode) {
- ext3fs_dirhash(de->name, de->name_len, &h);
+ ext4fs_dirhash(de->name, de->name_len, &h);
map_tail--;
map_tail->hash = h.hash;
map_tail->offs = (u32) ((char *) de - base);
cond_resched();
}
/* XXX: do we need to check rec_len == 0 case? -Chris */
- de = (struct ext3_dir_entry_2 *) ((char *) de + le16_to_cpu(de->rec_len));
+ de = (struct ext4_dir_entry_2 *) ((char *) de + le16_to_cpu(de->rec_len));
}
return count;
}
#endif
-static void ext3_update_dx_flag(struct inode *inode)
+static void ext4_update_dx_flag(struct inode *inode)
{
- if (!EXT3_HAS_COMPAT_FEATURE(inode->i_sb,
- EXT3_FEATURE_COMPAT_DIR_INDEX))
- EXT3_I(inode)->i_flags &= ~EXT3_INDEX_FL;
+ if (!EXT4_HAS_COMPAT_FEATURE(inode->i_sb,
+ EXT4_FEATURE_COMPAT_DIR_INDEX))
+ EXT4_I(inode)->i_flags &= ~EXT4_INDEX_FL;
}
/*
- * NOTE! unlike strncmp, ext3_match returns 1 for success, 0 for failure.
+ * NOTE! unlike strncmp, ext4_match returns 1 for success, 0 for failure.
*
- * `len <= EXT3_NAME_LEN' is guaranteed by caller.
+ * `len <= EXT4_NAME_LEN' is guaranteed by caller.
* `de != NULL' is guaranteed by caller.
*/
-static inline int ext3_match (int len, const char * const name,
- struct ext3_dir_entry_2 * de)
+static inline int ext4_match (int len, const char * const name,
+ struct ext4_dir_entry_2 * de)
{
if (len != de->name_len)
return 0;
struct inode *dir,
struct dentry *dentry,
unsigned long offset,
- struct ext3_dir_entry_2 ** res_dir)
+ struct ext4_dir_entry_2 ** res_dir)
{
- struct ext3_dir_entry_2 * de;
+ struct ext4_dir_entry_2 * de;
char * dlimit;
int de_len;
const char *name = dentry->d_name.name;
int namelen = dentry->d_name.len;
- de = (struct ext3_dir_entry_2 *) bh->b_data;
+ de = (struct ext4_dir_entry_2 *) bh->b_data;
dlimit = bh->b_data + dir->i_sb->s_blocksize;
while ((char *) de < dlimit) {
/* this code is executed quadratically often */
/* do minimal checking `by hand' */
if ((char *) de + namelen <= dlimit &&
- ext3_match (namelen, name, de)) {
+ ext4_match (namelen, name, de)) {
/* found a match - just to be sure, do a full check */
- if (!ext3_check_dir_entry("ext3_find_entry",
+ if (!ext4_check_dir_entry("ext4_find_entry",
dir, de, bh, offset))
return -1;
*res_dir = de;
if (de_len <= 0)
return -1;
offset += de_len;
- de = (struct ext3_dir_entry_2 *) ((char *) de + de_len);
+ de = (struct ext4_dir_entry_2 *) ((char *) de + de_len);
}
return 0;
}
/*
- * ext3_find_entry()
+ * ext4_find_entry()
*
* finds an entry in the specified directory with the wanted name. It
* returns the cache buffer in which the entry was found, and the entry
* The returned buffer_head has ->b_count elevated. The caller is expected
* to brelse() it when appropriate.
*/
-static struct buffer_head * ext3_find_entry (struct dentry *dentry,
- struct ext3_dir_entry_2 ** res_dir)
+static struct buffer_head * ext4_find_entry (struct dentry *dentry,
+ struct ext4_dir_entry_2 ** res_dir)
{
struct super_block * sb;
struct buffer_head * bh_use[NAMEI_RA_SIZE];
blocksize = sb->s_blocksize;
namelen = dentry->d_name.len;
name = dentry->d_name.name;
- if (namelen > EXT3_NAME_LEN)
+ if (namelen > EXT4_NAME_LEN)
return NULL;
-#ifdef CONFIG_EXT3_INDEX
+#ifdef CONFIG_EXT4_INDEX
if (is_dx(dir)) {
- bh = ext3_dx_find_entry(dentry, res_dir, &err);
+ bh = ext4_dx_find_entry(dentry, res_dir, &err);
/*
* On success, or if the error was file not found,
* return. Otherwise, fall back to doing a search the
*/
if (bh || (err != ERR_BAD_DX_DIR))
return bh;
- dxtrace(printk("ext3_find_entry: dx failed, falling back\n"));
+ dxtrace(printk("ext4_find_entry: dx failed, falling back\n"));
}
#endif
- nblocks = dir->i_size >> EXT3_BLOCK_SIZE_BITS(sb);
- start = EXT3_I(dir)->i_dir_start_lookup;
+ nblocks = dir->i_size >> EXT4_BLOCK_SIZE_BITS(sb);
+ start = EXT4_I(dir)->i_dir_start_lookup;
if (start >= nblocks)
start = 0;
block = start;
break;
}
num++;
- bh = ext3_getblk(NULL, dir, b++, 0, &err);
+ bh = ext4_getblk(NULL, dir, b++, 0, &err);
bh_use[ra_max] = bh;
if (bh)
ll_rw_block(READ_META, 1, &bh);
wait_on_buffer(bh);
if (!buffer_uptodate(bh)) {
/* read error, skip block & hope for the best */
- ext3_error(sb, __FUNCTION__, "reading directory #%lu "
+ ext4_error(sb, __FUNCTION__, "reading directory #%lu "
"offset %lu", dir->i_ino, block);
brelse(bh);
goto next;
}
i = search_dirblock(bh, dir, dentry,
- block << EXT3_BLOCK_SIZE_BITS(sb), res_dir);
+ block << EXT4_BLOCK_SIZE_BITS(sb), res_dir);
if (i == 1) {
- EXT3_I(dir)->i_dir_start_lookup = block;
+ EXT4_I(dir)->i_dir_start_lookup = block;
ret = bh;
goto cleanup_and_exit;
} else {
* search the last part of the directory before giving up.
*/
block = nblocks;
- nblocks = dir->i_size >> EXT3_BLOCK_SIZE_BITS(sb);
+ nblocks = dir->i_size >> EXT4_BLOCK_SIZE_BITS(sb);
if (block < nblocks) {
start = 0;
goto restart;
return ret;
}
-#ifdef CONFIG_EXT3_INDEX
-static struct buffer_head * ext3_dx_find_entry(struct dentry *dentry,
- struct ext3_dir_entry_2 **res_dir, int *err)
+#ifdef CONFIG_EXT4_INDEX
+static struct buffer_head * ext4_dx_find_entry(struct dentry *dentry,
+ struct ext4_dir_entry_2 **res_dir, int *err)
{
struct super_block * sb;
struct dx_hash_info hinfo;
u32 hash;
struct dx_frame frames[2], *frame;
- struct ext3_dir_entry_2 *de, *top;
+ struct ext4_dir_entry_2 *de, *top;
struct buffer_head *bh;
unsigned long block;
int retval;
hash = hinfo.hash;
do {
block = dx_get_block(frame->at);
- if (!(bh = ext3_bread (NULL,dir, block, 0, err)))
+ if (!(bh = ext4_bread (NULL,dir, block, 0, err)))
goto errout;
- de = (struct ext3_dir_entry_2 *) bh->b_data;
- top = (struct ext3_dir_entry_2 *) ((char *) de + sb->s_blocksize -
- EXT3_DIR_REC_LEN(0));
- for (; de < top; de = ext3_next_entry(de))
- if (ext3_match (namelen, name, de)) {
- if (!ext3_check_dir_entry("ext3_find_entry",
+ de = (struct ext4_dir_entry_2 *) bh->b_data;
+ top = (struct ext4_dir_entry_2 *) ((char *) de + sb->s_blocksize -
+ EXT4_DIR_REC_LEN(0));
+ for (; de < top; de = ext4_next_entry(de))
+ if (ext4_match (namelen, name, de)) {
+ if (!ext4_check_dir_entry("ext4_find_entry",
dir, de, bh,
- (block<<EXT3_BLOCK_SIZE_BITS(sb))
+ (block<<EXT4_BLOCK_SIZE_BITS(sb))
+((char *)de - bh->b_data))) {
brelse (bh);
goto errout;
}
brelse (bh);
/* Check to see if we should continue to search */
- retval = ext3_htree_next_block(dir, hash, frame,
+ retval = ext4_htree_next_block(dir, hash, frame,
frames, NULL);
if (retval < 0) {
- ext3_warning(sb, __FUNCTION__,
+ ext4_warning(sb, __FUNCTION__,
"error reading index page in directory #%lu",
dir->i_ino);
*err = retval;
}
#endif
-static struct dentry *ext3_lookup(struct inode * dir, struct dentry *dentry, struct nameidata *nd)
+static struct dentry *ext4_lookup(struct inode * dir, struct dentry *dentry, struct nameidata *nd)
{
struct inode * inode;
- struct ext3_dir_entry_2 * de;
+ struct ext4_dir_entry_2 * de;
struct buffer_head * bh;
- if (dentry->d_name.len > EXT3_NAME_LEN)
+ if (dentry->d_name.len > EXT4_NAME_LEN)
return ERR_PTR(-ENAMETOOLONG);
- bh = ext3_find_entry(dentry, &de);
+ bh = ext4_find_entry(dentry, &de);
inode = NULL;
if (bh) {
unsigned long ino = le32_to_cpu(de->inode);
brelse (bh);
- if (!ext3_valid_inum(dir->i_sb, ino)) {
- ext3_error(dir->i_sb, "ext3_lookup",
+ if (!ext4_valid_inum(dir->i_sb, ino)) {
+ ext4_error(dir->i_sb, "ext4_lookup",
"bad inode number: %lu", ino);
inode = NULL;
} else
}
-struct dentry *ext3_get_parent(struct dentry *child)
+struct dentry *ext4_get_parent(struct dentry *child)
{
unsigned long ino;
struct dentry *parent;
struct inode *inode;
struct dentry dotdot;
- struct ext3_dir_entry_2 * de;
+ struct ext4_dir_entry_2 * de;
struct buffer_head *bh;
dotdot.d_name.name = "..";
dotdot.d_name.len = 2;
dotdot.d_parent = child; /* confusing, isn't it! */
- bh = ext3_find_entry(&dotdot, &de);
+ bh = ext4_find_entry(&dotdot, &de);
inode = NULL;
if (!bh)
return ERR_PTR(-ENOENT);
ino = le32_to_cpu(de->inode);
brelse(bh);
- if (!ext3_valid_inum(child->d_inode->i_sb, ino)) {
- ext3_error(child->d_inode->i_sb, "ext3_get_parent",
+ if (!ext4_valid_inum(child->d_inode->i_sb, ino)) {
+ ext4_error(child->d_inode->i_sb, "ext4_get_parent",
"bad inode number: %lu", ino);
inode = NULL;
} else
}
#define S_SHIFT 12
-static unsigned char ext3_type_by_mode[S_IFMT >> S_SHIFT] = {
- [S_IFREG >> S_SHIFT] = EXT3_FT_REG_FILE,
- [S_IFDIR >> S_SHIFT] = EXT3_FT_DIR,
- [S_IFCHR >> S_SHIFT] = EXT3_FT_CHRDEV,
- [S_IFBLK >> S_SHIFT] = EXT3_FT_BLKDEV,
- [S_IFIFO >> S_SHIFT] = EXT3_FT_FIFO,
- [S_IFSOCK >> S_SHIFT] = EXT3_FT_SOCK,
- [S_IFLNK >> S_SHIFT] = EXT3_FT_SYMLINK,
+static unsigned char ext4_type_by_mode[S_IFMT >> S_SHIFT] = {
+ [S_IFREG >> S_SHIFT] = EXT4_FT_REG_FILE,
+ [S_IFDIR >> S_SHIFT] = EXT4_FT_DIR,
+ [S_IFCHR >> S_SHIFT] = EXT4_FT_CHRDEV,
+ [S_IFBLK >> S_SHIFT] = EXT4_FT_BLKDEV,
+ [S_IFIFO >> S_SHIFT] = EXT4_FT_FIFO,
+ [S_IFSOCK >> S_SHIFT] = EXT4_FT_SOCK,
+ [S_IFLNK >> S_SHIFT] = EXT4_FT_SYMLINK,
};
-static inline void ext3_set_de_type(struct super_block *sb,
- struct ext3_dir_entry_2 *de,
+static inline void ext4_set_de_type(struct super_block *sb,
+ struct ext4_dir_entry_2 *de,
umode_t mode) {
- if (EXT3_HAS_INCOMPAT_FEATURE(sb, EXT3_FEATURE_INCOMPAT_FILETYPE))
- de->file_type = ext3_type_by_mode[(mode & S_IFMT)>>S_SHIFT];
+ if (EXT4_HAS_INCOMPAT_FEATURE(sb, EXT4_FEATURE_INCOMPAT_FILETYPE))
+ de->file_type = ext4_type_by_mode[(mode & S_IFMT)>>S_SHIFT];
}
-#ifdef CONFIG_EXT3_INDEX
-static struct ext3_dir_entry_2 *
+#ifdef CONFIG_EXT4_INDEX
+static struct ext4_dir_entry_2 *
dx_move_dirents(char *from, char *to, struct dx_map_entry *map, int count)
{
unsigned rec_len = 0;
while (count--) {
- struct ext3_dir_entry_2 *de = (struct ext3_dir_entry_2 *) (from + map->offs);
- rec_len = EXT3_DIR_REC_LEN(de->name_len);
+ struct ext4_dir_entry_2 *de = (struct ext4_dir_entry_2 *) (from + map->offs);
+ rec_len = EXT4_DIR_REC_LEN(de->name_len);
memcpy (to, de, rec_len);
- ((struct ext3_dir_entry_2 *) to)->rec_len =
+ ((struct ext4_dir_entry_2 *) to)->rec_len =
cpu_to_le16(rec_len);
de->inode = 0;
map++;
to += rec_len;
}
- return (struct ext3_dir_entry_2 *) (to - rec_len);
+ return (struct ext4_dir_entry_2 *) (to - rec_len);
}
-static struct ext3_dir_entry_2* dx_pack_dirents(char *base, int size)
+static struct ext4_dir_entry_2* dx_pack_dirents(char *base, int size)
{
- struct ext3_dir_entry_2 *next, *to, *prev, *de = (struct ext3_dir_entry_2 *) base;
+ struct ext4_dir_entry_2 *next, *to, *prev, *de = (struct ext4_dir_entry_2 *) base;
unsigned rec_len = 0;
prev = to = de;
while ((char*)de < base + size) {
- next = (struct ext3_dir_entry_2 *) ((char *) de +
+ next = (struct ext4_dir_entry_2 *) ((char *) de +
le16_to_cpu(de->rec_len));
if (de->inode && de->name_len) {
- rec_len = EXT3_DIR_REC_LEN(de->name_len);
+ rec_len = EXT4_DIR_REC_LEN(de->name_len);
if (de > to)
memmove(to, de, rec_len);
to->rec_len = cpu_to_le16(rec_len);
prev = to;
- to = (struct ext3_dir_entry_2 *) (((char *) to) + rec_len);
+ to = (struct ext4_dir_entry_2 *) (((char *) to) + rec_len);
}
de = next;
}
return prev;
}
-static struct ext3_dir_entry_2 *do_split(handle_t *handle, struct inode *dir,
+static struct ext4_dir_entry_2 *do_split(handle_t *handle, struct inode *dir,
struct buffer_head **bh,struct dx_frame *frame,
struct dx_hash_info *hinfo, int *error)
{
struct dx_map_entry *map;
char *data1 = (*bh)->b_data, *data2;
unsigned split;
- struct ext3_dir_entry_2 *de = NULL, *de2;
+ struct ext4_dir_entry_2 *de = NULL, *de2;
int err;
- bh2 = ext3_append (handle, dir, &newblock, error);
+ bh2 = ext4_append (handle, dir, &newblock, error);
if (!(bh2)) {
brelse(*bh);
*bh = NULL;
}
BUFFER_TRACE(*bh, "get_write_access");
- err = ext3_journal_get_write_access(handle, *bh);
+ err = ext4_journal_get_write_access(handle, *bh);
if (err) {
journal_error:
brelse(*bh);
brelse(bh2);
*bh = NULL;
- ext3_std_error(dir->i_sb, err);
+ ext4_std_error(dir->i_sb, err);
goto errout;
}
BUFFER_TRACE(frame->bh, "get_write_access");
- err = ext3_journal_get_write_access(handle, frame->bh);
+ err = ext4_journal_get_write_access(handle, frame->bh);
if (err)
goto journal_error;
/* create map in the end of data2 block */
map = (struct dx_map_entry *) (data2 + blocksize);
- count = dx_make_map ((struct ext3_dir_entry_2 *) data1,
+ count = dx_make_map ((struct ext4_dir_entry_2 *) data1,
blocksize, hinfo, map);
map -= count;
split = count/2; // need to adjust to actual middle
de = dx_pack_dirents(data1,blocksize);
de->rec_len = cpu_to_le16(data1 + blocksize - (char *) de);
de2->rec_len = cpu_to_le16(data2 + blocksize - (char *) de2);
- dxtrace(dx_show_leaf (hinfo, (struct ext3_dir_entry_2 *) data1, blocksize, 1));
- dxtrace(dx_show_leaf (hinfo, (struct ext3_dir_entry_2 *) data2, blocksize, 1));
+ dxtrace(dx_show_leaf (hinfo, (struct ext4_dir_entry_2 *) data1, blocksize, 1));
+ dxtrace(dx_show_leaf (hinfo, (struct ext4_dir_entry_2 *) data2, blocksize, 1));
/* Which block gets the new entry? */
if (hinfo->hash >= hash2)
de = de2;
}
dx_insert_block (frame, hash2 + continued, newblock);
- err = ext3_journal_dirty_metadata (handle, bh2);
+ err = ext4_journal_dirty_metadata (handle, bh2);
if (err)
goto journal_error;
- err = ext3_journal_dirty_metadata (handle, frame->bh);
+ err = ext4_journal_dirty_metadata (handle, frame->bh);
if (err)
goto journal_error;
brelse (bh2);
* all other cases bh is released.
*/
static int add_dirent_to_buf(handle_t *handle, struct dentry *dentry,
- struct inode *inode, struct ext3_dir_entry_2 *de,
+ struct inode *inode, struct ext4_dir_entry_2 *de,
struct buffer_head * bh)
{
struct inode *dir = dentry->d_parent->d_inode;
int nlen, rlen, err;
char *top;
- reclen = EXT3_DIR_REC_LEN(namelen);
+ reclen = EXT4_DIR_REC_LEN(namelen);
if (!de) {
- de = (struct ext3_dir_entry_2 *)bh->b_data;
+ de = (struct ext4_dir_entry_2 *)bh->b_data;
top = bh->b_data + dir->i_sb->s_blocksize - reclen;
while ((char *) de <= top) {
- if (!ext3_check_dir_entry("ext3_add_entry", dir, de,
+ if (!ext4_check_dir_entry("ext4_add_entry", dir, de,
bh, offset)) {
brelse (bh);
return -EIO;
}
- if (ext3_match (namelen, name, de)) {
+ if (ext4_match (namelen, name, de)) {
brelse (bh);
return -EEXIST;
}
- nlen = EXT3_DIR_REC_LEN(de->name_len);
+ nlen = EXT4_DIR_REC_LEN(de->name_len);
rlen = le16_to_cpu(de->rec_len);
if ((de->inode? rlen - nlen: rlen) >= reclen)
break;
- de = (struct ext3_dir_entry_2 *)((char *)de + rlen);
+ de = (struct ext4_dir_entry_2 *)((char *)de + rlen);
offset += rlen;
}
if ((char *) de > top)
return -ENOSPC;
}
BUFFER_TRACE(bh, "get_write_access");
- err = ext3_journal_get_write_access(handle, bh);
+ err = ext4_journal_get_write_access(handle, bh);
if (err) {
- ext3_std_error(dir->i_sb, err);
+ ext4_std_error(dir->i_sb, err);
brelse(bh);
return err;
}
/* By now the buffer is marked for journaling */
- nlen = EXT3_DIR_REC_LEN(de->name_len);
+ nlen = EXT4_DIR_REC_LEN(de->name_len);
rlen = le16_to_cpu(de->rec_len);
if (de->inode) {
- struct ext3_dir_entry_2 *de1 = (struct ext3_dir_entry_2 *)((char *)de + nlen);
+ struct ext4_dir_entry_2 *de1 = (struct ext4_dir_entry_2 *)((char *)de + nlen);
de1->rec_len = cpu_to_le16(rlen - nlen);
de->rec_len = cpu_to_le16(nlen);
de = de1;
}
- de->file_type = EXT3_FT_UNKNOWN;
+ de->file_type = EXT4_FT_UNKNOWN;
if (inode) {
de->inode = cpu_to_le32(inode->i_ino);
- ext3_set_de_type(dir->i_sb, de, inode->i_mode);
+ ext4_set_de_type(dir->i_sb, de, inode->i_mode);
} else
de->inode = 0;
de->name_len = namelen;
* on this.
*
* XXX similarly, too many callers depend on
- * ext3_new_inode() setting the times, but error
+ * ext4_new_inode() setting the times, but error
* recovery deletes the inode, so the worst that can
* happen is that the times are slightly out of date
* and/or different from the directory change time.
*/
dir->i_mtime = dir->i_ctime = CURRENT_TIME_SEC;
- ext3_update_dx_flag(dir);
+ ext4_update_dx_flag(dir);
dir->i_version++;
- ext3_mark_inode_dirty(handle, dir);
- BUFFER_TRACE(bh, "call ext3_journal_dirty_metadata");
- err = ext3_journal_dirty_metadata(handle, bh);
+ ext4_mark_inode_dirty(handle, dir);
+ BUFFER_TRACE(bh, "call ext4_journal_dirty_metadata");
+ err = ext4_journal_dirty_metadata(handle, bh);
if (err)
- ext3_std_error(dir->i_sb, err);
+ ext4_std_error(dir->i_sb, err);
brelse(bh);
return 0;
}
-#ifdef CONFIG_EXT3_INDEX
+#ifdef CONFIG_EXT4_INDEX
/*
* This converts a one block unindexed directory to a 3 block indexed
* directory, and adds the dentry to the indexed directory.
struct dx_root *root;
struct dx_frame frames[2], *frame;
struct dx_entry *entries;
- struct ext3_dir_entry_2 *de, *de2;
+ struct ext4_dir_entry_2 *de, *de2;
char *data1, *top;
unsigned len;
int retval;
blocksize = dir->i_sb->s_blocksize;
dxtrace(printk("Creating index\n"));
- retval = ext3_journal_get_write_access(handle, bh);
+ retval = ext4_journal_get_write_access(handle, bh);
if (retval) {
- ext3_std_error(dir->i_sb, retval);
+ ext4_std_error(dir->i_sb, retval);
brelse(bh);
return retval;
}
root = (struct dx_root *) bh->b_data;
- bh2 = ext3_append (handle, dir, &block, &retval);
+ bh2 = ext4_append (handle, dir, &block, &retval);
if (!(bh2)) {
brelse(bh);
return retval;
}
- EXT3_I(dir)->i_flags |= EXT3_INDEX_FL;
+ EXT4_I(dir)->i_flags |= EXT4_INDEX_FL;
data1 = bh2->b_data;
/* The 0th block becomes the root, move the dirents out */
fde = &root->dotdot;
- de = (struct ext3_dir_entry_2 *)((char *)fde + le16_to_cpu(fde->rec_len));
+ de = (struct ext4_dir_entry_2 *)((char *)fde + le16_to_cpu(fde->rec_len));
len = ((char *) root) + blocksize - (char *) de;
memcpy (data1, de, len);
- de = (struct ext3_dir_entry_2 *) data1;
+ de = (struct ext4_dir_entry_2 *) data1;
top = data1 + len;
while ((char *)(de2=(void*)de+le16_to_cpu(de->rec_len)) < top)
de = de2;
de->rec_len = cpu_to_le16(data1 + blocksize - (char *) de);
/* Initialize the root; the dot dirents already exist */
- de = (struct ext3_dir_entry_2 *) (&root->dotdot);
- de->rec_len = cpu_to_le16(blocksize - EXT3_DIR_REC_LEN(2));
+ de = (struct ext4_dir_entry_2 *) (&root->dotdot);
+ de->rec_len = cpu_to_le16(blocksize - EXT4_DIR_REC_LEN(2));
memset (&root->info, 0, sizeof(root->info));
root->info.info_length = sizeof(root->info);
- root->info.hash_version = EXT3_SB(dir->i_sb)->s_def_hash_version;
+ root->info.hash_version = EXT4_SB(dir->i_sb)->s_def_hash_version;
entries = root->entries;
dx_set_block (entries, 1);
dx_set_count (entries, 1);
/* Initialize as for dx_probe */
hinfo.hash_version = root->info.hash_version;
- hinfo.seed = EXT3_SB(dir->i_sb)->s_hash_seed;
- ext3fs_dirhash(name, namelen, &hinfo);
+ hinfo.seed = EXT4_SB(dir->i_sb)->s_hash_seed;
+ ext4fs_dirhash(name, namelen, &hinfo);
frame = frames;
frame->entries = entries;
frame->at = entries;
#endif
/*
- * ext3_add_entry()
+ * ext4_add_entry()
*
* adds a file entry to the specified directory, using the same
- * semantics as ext3_find_entry(). It returns NULL if it failed.
+ * semantics as ext4_find_entry(). It returns NULL if it failed.
*
* NOTE!! The inode part of 'de' is left at 0 - which means you
* may not sleep between calling this and putting something into
* the entry, as someone else might have used it while you slept.
*/
-static int ext3_add_entry (handle_t *handle, struct dentry *dentry,
+static int ext4_add_entry (handle_t *handle, struct dentry *dentry,
struct inode *inode)
{
struct inode *dir = dentry->d_parent->d_inode;
unsigned long offset;
struct buffer_head * bh;
- struct ext3_dir_entry_2 *de;
+ struct ext4_dir_entry_2 *de;
struct super_block * sb;
int retval;
-#ifdef CONFIG_EXT3_INDEX
+#ifdef CONFIG_EXT4_INDEX
int dx_fallback=0;
#endif
unsigned blocksize;
blocksize = sb->s_blocksize;
if (!dentry->d_name.len)
return -EINVAL;
-#ifdef CONFIG_EXT3_INDEX
+#ifdef CONFIG_EXT4_INDEX
if (is_dx(dir)) {
- retval = ext3_dx_add_entry(handle, dentry, inode);
+ retval = ext4_dx_add_entry(handle, dentry, inode);
if (!retval || (retval != ERR_BAD_DX_DIR))
return retval;
- EXT3_I(dir)->i_flags &= ~EXT3_INDEX_FL;
+ EXT4_I(dir)->i_flags &= ~EXT4_INDEX_FL;
dx_fallback++;
- ext3_mark_inode_dirty(handle, dir);
+ ext4_mark_inode_dirty(handle, dir);
}
#endif
blocks = dir->i_size >> sb->s_blocksize_bits;
for (block = 0, offset = 0; block < blocks; block++) {
- bh = ext3_bread(handle, dir, block, 0, &retval);
+ bh = ext4_bread(handle, dir, block, 0, &retval);
if(!bh)
return retval;
retval = add_dirent_to_buf(handle, dentry, inode, NULL, bh);
if (retval != -ENOSPC)
return retval;
-#ifdef CONFIG_EXT3_INDEX
+#ifdef CONFIG_EXT4_INDEX
if (blocks == 1 && !dx_fallback &&
- EXT3_HAS_COMPAT_FEATURE(sb, EXT3_FEATURE_COMPAT_DIR_INDEX))
+ EXT4_HAS_COMPAT_FEATURE(sb, EXT4_FEATURE_COMPAT_DIR_INDEX))
return make_indexed_dir(handle, dentry, inode, bh);
#endif
brelse(bh);
}
- bh = ext3_append(handle, dir, &block, &retval);
+ bh = ext4_append(handle, dir, &block, &retval);
if (!bh)
return retval;
- de = (struct ext3_dir_entry_2 *) bh->b_data;
+ de = (struct ext4_dir_entry_2 *) bh->b_data;
de->inode = 0;
de->rec_len = cpu_to_le16(blocksize);
return add_dirent_to_buf(handle, dentry, inode, de, bh);
}
-#ifdef CONFIG_EXT3_INDEX
+#ifdef CONFIG_EXT4_INDEX
/*
* Returns 0 for success, or a negative error value
*/
-static int ext3_dx_add_entry(handle_t *handle, struct dentry *dentry,
+static int ext4_dx_add_entry(handle_t *handle, struct dentry *dentry,
struct inode *inode)
{
struct dx_frame frames[2], *frame;
struct buffer_head * bh;
struct inode *dir = dentry->d_parent->d_inode;
struct super_block * sb = dir->i_sb;
- struct ext3_dir_entry_2 *de;
+ struct ext4_dir_entry_2 *de;
int err;
frame = dx_probe(dentry, NULL, &hinfo, frames, &err);
entries = frame->entries;
at = frame->at;
- if (!(bh = ext3_bread(handle,dir, dx_get_block(frame->at), 0, &err)))
+ if (!(bh = ext4_bread(handle,dir, dx_get_block(frame->at), 0, &err)))
goto cleanup;
BUFFER_TRACE(bh, "get_write_access");
- err = ext3_journal_get_write_access(handle, bh);
+ err = ext4_journal_get_write_access(handle, bh);
if (err)
goto journal_error;
if (levels && (dx_get_count(frames->entries) ==
dx_get_limit(frames->entries))) {
- ext3_warning(sb, __FUNCTION__,
+ ext4_warning(sb, __FUNCTION__,
"Directory index full!");
err = -ENOSPC;
goto cleanup;
}
- bh2 = ext3_append (handle, dir, &newblock, &err);
+ bh2 = ext4_append (handle, dir, &newblock, &err);
if (!(bh2))
goto cleanup;
node2 = (struct dx_node *)(bh2->b_data);
node2->fake.rec_len = cpu_to_le16(sb->s_blocksize);
node2->fake.inode = 0;
BUFFER_TRACE(frame->bh, "get_write_access");
- err = ext3_journal_get_write_access(handle, frame->bh);
+ err = ext4_journal_get_write_access(handle, frame->bh);
if (err)
goto journal_error;
if (levels) {
dxtrace(printk("Split index %i/%i\n", icount1, icount2));
BUFFER_TRACE(frame->bh, "get_write_access"); /* index root */
- err = ext3_journal_get_write_access(handle,
+ err = ext4_journal_get_write_access(handle,
frames[0].bh);
if (err)
goto journal_error;
dxtrace(dx_show_index ("node", frames[1].entries));
dxtrace(dx_show_index ("node",
((struct dx_node *) bh2->b_data)->entries));
- err = ext3_journal_dirty_metadata(handle, bh2);
+ err = ext4_journal_dirty_metadata(handle, bh2);
if (err)
goto journal_error;
brelse (bh2);
frame->at = at = at - entries + entries2;
frame->entries = entries = entries2;
frame->bh = bh2;
- err = ext3_journal_get_write_access(handle,
+ err = ext4_journal_get_write_access(handle,
frame->bh);
if (err)
goto journal_error;
}
- ext3_journal_dirty_metadata(handle, frames[0].bh);
+ ext4_journal_dirty_metadata(handle, frames[0].bh);
}
de = do_split(handle, dir, &bh, frame, &hinfo, &err);
if (!de)
goto cleanup;
journal_error:
- ext3_std_error(dir->i_sb, err);
+ ext4_std_error(dir->i_sb, err);
cleanup:
if (bh)
brelse(bh);
#endif
/*
- * ext3_delete_entry deletes a directory entry by merging it with the
+ * ext4_delete_entry deletes a directory entry by merging it with the
* previous entry
*/
-static int ext3_delete_entry (handle_t *handle,
+static int ext4_delete_entry (handle_t *handle,
struct inode * dir,
- struct ext3_dir_entry_2 * de_del,
+ struct ext4_dir_entry_2 * de_del,
struct buffer_head * bh)
{
- struct ext3_dir_entry_2 * de, * pde;
+ struct ext4_dir_entry_2 * de, * pde;
int i;
i = 0;
pde = NULL;
- de = (struct ext3_dir_entry_2 *) bh->b_data;
+ de = (struct ext4_dir_entry_2 *) bh->b_data;
while (i < bh->b_size) {
- if (!ext3_check_dir_entry("ext3_delete_entry", dir, de, bh, i))
+ if (!ext4_check_dir_entry("ext4_delete_entry", dir, de, bh, i))
return -EIO;
if (de == de_del) {
BUFFER_TRACE(bh, "get_write_access");
- ext3_journal_get_write_access(handle, bh);
+ ext4_journal_get_write_access(handle, bh);
if (pde)
pde->rec_len =
cpu_to_le16(le16_to_cpu(pde->rec_len) +
else
de->inode = 0;
dir->i_version++;
- BUFFER_TRACE(bh, "call ext3_journal_dirty_metadata");
- ext3_journal_dirty_metadata(handle, bh);
+ BUFFER_TRACE(bh, "call ext4_journal_dirty_metadata");
+ ext4_journal_dirty_metadata(handle, bh);
return 0;
}
i += le16_to_cpu(de->rec_len);
pde = de;
- de = (struct ext3_dir_entry_2 *)
+ de = (struct ext4_dir_entry_2 *)
((char *) de + le16_to_cpu(de->rec_len));
}
return -ENOENT;
}
/*
- * ext3_mark_inode_dirty is somewhat expensive, so unlike ext2 we
+ * ext4_mark_inode_dirty is somewhat expensive, so unlike ext2 we
* do not perform it in these functions. We perform it at the call site,
* if it is needed.
*/
-static inline void ext3_inc_count(handle_t *handle, struct inode *inode)
+static inline void ext4_inc_count(handle_t *handle, struct inode *inode)
{
inc_nlink(inode);
}
-static inline void ext3_dec_count(handle_t *handle, struct inode *inode)
+static inline void ext4_dec_count(handle_t *handle, struct inode *inode)
{
drop_nlink(inode);
}
-static int ext3_add_nondir(handle_t *handle,
+static int ext4_add_nondir(handle_t *handle,
struct dentry *dentry, struct inode *inode)
{
- int err = ext3_add_entry(handle, dentry, inode);
+ int err = ext4_add_entry(handle, dentry, inode);
if (!err) {
- ext3_mark_inode_dirty(handle, inode);
+ ext4_mark_inode_dirty(handle, inode);
d_instantiate(dentry, inode);
return 0;
}
- ext3_dec_count(handle, inode);
+ ext4_dec_count(handle, inode);
iput(inode);
return err;
}
* If the create succeeds, we fill in the inode information
* with d_instantiate().
*/
-static int ext3_create (struct inode * dir, struct dentry * dentry, int mode,
+static int ext4_create (struct inode * dir, struct dentry * dentry, int mode,
struct nameidata *nd)
{
handle_t *handle;
int err, retries = 0;
retry:
- handle = ext3_journal_start(dir, EXT3_DATA_TRANS_BLOCKS(dir->i_sb) +
- EXT3_INDEX_EXTRA_TRANS_BLOCKS + 3 +
- 2*EXT3_QUOTA_INIT_BLOCKS(dir->i_sb));
+ handle = ext4_journal_start(dir, EXT4_DATA_TRANS_BLOCKS(dir->i_sb) +
+ EXT4_INDEX_EXTRA_TRANS_BLOCKS + 3 +
+ 2*EXT4_QUOTA_INIT_BLOCKS(dir->i_sb));
if (IS_ERR(handle))
return PTR_ERR(handle);
if (IS_DIRSYNC(dir))
handle->h_sync = 1;
- inode = ext3_new_inode (handle, dir, mode);
+ inode = ext4_new_inode (handle, dir, mode);
err = PTR_ERR(inode);
if (!IS_ERR(inode)) {
- inode->i_op = &ext3_file_inode_operations;
- inode->i_fop = &ext3_file_operations;
- ext3_set_aops(inode);
- err = ext3_add_nondir(handle, dentry, inode);
+ inode->i_op = &ext4_file_inode_operations;
+ inode->i_fop = &ext4_file_operations;
+ ext4_set_aops(inode);
+ err = ext4_add_nondir(handle, dentry, inode);
}
- ext3_journal_stop(handle);
- if (err == -ENOSPC && ext3_should_retry_alloc(dir->i_sb, &retries))
+ ext4_journal_stop(handle);
+ if (err == -ENOSPC && ext4_should_retry_alloc(dir->i_sb, &retries))
goto retry;
return err;
}
-static int ext3_mknod (struct inode * dir, struct dentry *dentry,
+static int ext4_mknod (struct inode * dir, struct dentry *dentry,
int mode, dev_t rdev)
{
handle_t *handle;
return -EINVAL;
retry:
- handle = ext3_journal_start(dir, EXT3_DATA_TRANS_BLOCKS(dir->i_sb) +
- EXT3_INDEX_EXTRA_TRANS_BLOCKS + 3 +
- 2*EXT3_QUOTA_INIT_BLOCKS(dir->i_sb));
+ handle = ext4_journal_start(dir, EXT4_DATA_TRANS_BLOCKS(dir->i_sb) +
+ EXT4_INDEX_EXTRA_TRANS_BLOCKS + 3 +
+ 2*EXT4_QUOTA_INIT_BLOCKS(dir->i_sb));
if (IS_ERR(handle))
return PTR_ERR(handle);
if (IS_DIRSYNC(dir))
handle->h_sync = 1;
- inode = ext3_new_inode (handle, dir, mode);
+ inode = ext4_new_inode (handle, dir, mode);
err = PTR_ERR(inode);
if (!IS_ERR(inode)) {
init_special_inode(inode, inode->i_mode, rdev);
-#ifdef CONFIG_EXT3_FS_XATTR
- inode->i_op = &ext3_special_inode_operations;
+#ifdef CONFIG_EXT4DEV_FS_XATTR
+ inode->i_op = &ext4_special_inode_operations;
#endif
- err = ext3_add_nondir(handle, dentry, inode);
+ err = ext4_add_nondir(handle, dentry, inode);
}
- ext3_journal_stop(handle);
- if (err == -ENOSPC && ext3_should_retry_alloc(dir->i_sb, &retries))
+ ext4_journal_stop(handle);
+ if (err == -ENOSPC && ext4_should_retry_alloc(dir->i_sb, &retries))
goto retry;
return err;
}
-static int ext3_mkdir(struct inode * dir, struct dentry * dentry, int mode)
+static int ext4_mkdir(struct inode * dir, struct dentry * dentry, int mode)
{
handle_t *handle;
struct inode * inode;
struct buffer_head * dir_block;
- struct ext3_dir_entry_2 * de;
+ struct ext4_dir_entry_2 * de;
int err, retries = 0;
- if (dir->i_nlink >= EXT3_LINK_MAX)
+ if (dir->i_nlink >= EXT4_LINK_MAX)
return -EMLINK;
retry:
- handle = ext3_journal_start(dir, EXT3_DATA_TRANS_BLOCKS(dir->i_sb) +
- EXT3_INDEX_EXTRA_TRANS_BLOCKS + 3 +
- 2*EXT3_QUOTA_INIT_BLOCKS(dir->i_sb));
+ handle = ext4_journal_start(dir, EXT4_DATA_TRANS_BLOCKS(dir->i_sb) +
+ EXT4_INDEX_EXTRA_TRANS_BLOCKS + 3 +
+ 2*EXT4_QUOTA_INIT_BLOCKS(dir->i_sb));
if (IS_ERR(handle))
return PTR_ERR(handle);
if (IS_DIRSYNC(dir))
handle->h_sync = 1;
- inode = ext3_new_inode (handle, dir, S_IFDIR | mode);
+ inode = ext4_new_inode (handle, dir, S_IFDIR | mode);
err = PTR_ERR(inode);
if (IS_ERR(inode))
goto out_stop;
- inode->i_op = &ext3_dir_inode_operations;
- inode->i_fop = &ext3_dir_operations;
- inode->i_size = EXT3_I(inode)->i_disksize = inode->i_sb->s_blocksize;
- dir_block = ext3_bread (handle, inode, 0, 1, &err);
+ inode->i_op = &ext4_dir_inode_operations;
+ inode->i_fop = &ext4_dir_operations;
+ inode->i_size = EXT4_I(inode)->i_disksize = inode->i_sb->s_blocksize;
+ dir_block = ext4_bread (handle, inode, 0, 1, &err);
if (!dir_block) {
drop_nlink(inode); /* is this nlink == 0? */
- ext3_mark_inode_dirty(handle, inode);
+ ext4_mark_inode_dirty(handle, inode);
iput (inode);
goto out_stop;
}
BUFFER_TRACE(dir_block, "get_write_access");
- ext3_journal_get_write_access(handle, dir_block);
- de = (struct ext3_dir_entry_2 *) dir_block->b_data;
+ ext4_journal_get_write_access(handle, dir_block);
+ de = (struct ext4_dir_entry_2 *) dir_block->b_data;
de->inode = cpu_to_le32(inode->i_ino);
de->name_len = 1;
- de->rec_len = cpu_to_le16(EXT3_DIR_REC_LEN(de->name_len));
+ de->rec_len = cpu_to_le16(EXT4_DIR_REC_LEN(de->name_len));
strcpy (de->name, ".");
- ext3_set_de_type(dir->i_sb, de, S_IFDIR);
- de = (struct ext3_dir_entry_2 *)
+ ext4_set_de_type(dir->i_sb, de, S_IFDIR);
+ de = (struct ext4_dir_entry_2 *)
((char *) de + le16_to_cpu(de->rec_len));
de->inode = cpu_to_le32(dir->i_ino);
- de->rec_len = cpu_to_le16(inode->i_sb->s_blocksize-EXT3_DIR_REC_LEN(1));
+ de->rec_len = cpu_to_le16(inode->i_sb->s_blocksize-EXT4_DIR_REC_LEN(1));
de->name_len = 2;
strcpy (de->name, "..");
- ext3_set_de_type(dir->i_sb, de, S_IFDIR);
+ ext4_set_de_type(dir->i_sb, de, S_IFDIR);
inode->i_nlink = 2;
- BUFFER_TRACE(dir_block, "call ext3_journal_dirty_metadata");
- ext3_journal_dirty_metadata(handle, dir_block);
+ BUFFER_TRACE(dir_block, "call ext4_journal_dirty_metadata");
+ ext4_journal_dirty_metadata(handle, dir_block);
brelse (dir_block);
- ext3_mark_inode_dirty(handle, inode);
- err = ext3_add_entry (handle, dentry, inode);
+ ext4_mark_inode_dirty(handle, inode);
+ err = ext4_add_entry (handle, dentry, inode);
if (err) {
inode->i_nlink = 0;
- ext3_mark_inode_dirty(handle, inode);
+ ext4_mark_inode_dirty(handle, inode);
iput (inode);
goto out_stop;
}
inc_nlink(dir);
- ext3_update_dx_flag(dir);
- ext3_mark_inode_dirty(handle, dir);
+ ext4_update_dx_flag(dir);
+ ext4_mark_inode_dirty(handle, dir);
d_instantiate(dentry, inode);
out_stop:
- ext3_journal_stop(handle);
- if (err == -ENOSPC && ext3_should_retry_alloc(dir->i_sb, &retries))
+ ext4_journal_stop(handle);
+ if (err == -ENOSPC && ext4_should_retry_alloc(dir->i_sb, &retries))
goto retry;
return err;
}
{
unsigned long offset;
struct buffer_head * bh;
- struct ext3_dir_entry_2 * de, * de1;
+ struct ext4_dir_entry_2 * de, * de1;
struct super_block * sb;
int err = 0;
sb = inode->i_sb;
- if (inode->i_size < EXT3_DIR_REC_LEN(1) + EXT3_DIR_REC_LEN(2) ||
- !(bh = ext3_bread (NULL, inode, 0, 0, &err))) {
+ if (inode->i_size < EXT4_DIR_REC_LEN(1) + EXT4_DIR_REC_LEN(2) ||
+ !(bh = ext4_bread (NULL, inode, 0, 0, &err))) {
if (err)
- ext3_error(inode->i_sb, __FUNCTION__,
+ ext4_error(inode->i_sb, __FUNCTION__,
"error %d reading directory #%lu offset 0",
err, inode->i_ino);
else
- ext3_warning(inode->i_sb, __FUNCTION__,
+ ext4_warning(inode->i_sb, __FUNCTION__,
"bad directory (dir #%lu) - no data block",
inode->i_ino);
return 1;
}
- de = (struct ext3_dir_entry_2 *) bh->b_data;
- de1 = (struct ext3_dir_entry_2 *)
+ de = (struct ext4_dir_entry_2 *) bh->b_data;
+ de1 = (struct ext4_dir_entry_2 *)
((char *) de + le16_to_cpu(de->rec_len));
if (le32_to_cpu(de->inode) != inode->i_ino ||
!le32_to_cpu(de1->inode) ||
strcmp (".", de->name) ||
strcmp ("..", de1->name)) {
- ext3_warning (inode->i_sb, "empty_dir",
+ ext4_warning (inode->i_sb, "empty_dir",
"bad directory (dir #%lu) - no `.' or `..'",
inode->i_ino);
brelse (bh);
return 1;
}
offset = le16_to_cpu(de->rec_len) + le16_to_cpu(de1->rec_len);
- de = (struct ext3_dir_entry_2 *)
+ de = (struct ext4_dir_entry_2 *)
((char *) de1 + le16_to_cpu(de1->rec_len));
while (offset < inode->i_size ) {
if (!bh ||
(void *) de >= (void *) (bh->b_data+sb->s_blocksize)) {
err = 0;
brelse (bh);
- bh = ext3_bread (NULL, inode,
- offset >> EXT3_BLOCK_SIZE_BITS(sb), 0, &err);
+ bh = ext4_bread (NULL, inode,
+ offset >> EXT4_BLOCK_SIZE_BITS(sb), 0, &err);
if (!bh) {
if (err)
- ext3_error(sb, __FUNCTION__,
+ ext4_error(sb, __FUNCTION__,
"error %d reading directory"
" #%lu offset %lu",
err, inode->i_ino, offset);
offset += sb->s_blocksize;
continue;
}
- de = (struct ext3_dir_entry_2 *) bh->b_data;
+ de = (struct ext4_dir_entry_2 *) bh->b_data;
}
- if (!ext3_check_dir_entry("empty_dir", inode, de, bh, offset)) {
- de = (struct ext3_dir_entry_2 *)(bh->b_data +
+ if (!ext4_check_dir_entry("empty_dir", inode, de, bh, offset)) {
+ de = (struct ext4_dir_entry_2 *)(bh->b_data +
sb->s_blocksize);
offset = (offset | (sb->s_blocksize - 1)) + 1;
continue;
return 0;
}
offset += le16_to_cpu(de->rec_len);
- de = (struct ext3_dir_entry_2 *)
+ de = (struct ext4_dir_entry_2 *)
((char *) de + le16_to_cpu(de->rec_len));
}
brelse (bh);
return 1;
}
-/* ext3_orphan_add() links an unlinked or truncated inode into a list of
+/* ext4_orphan_add() links an unlinked or truncated inode into a list of
* such inodes, starting at the superblock, in case we crash before the
* file is closed/deleted, or in case the inode truncate spans multiple
* transactions and the last transaction is not recovered after a crash.
*
* At filesystem recovery time, we walk this list deleting unlinked
- * inodes and truncating linked inodes in ext3_orphan_cleanup().
+ * inodes and truncating linked inodes in ext4_orphan_cleanup().
*/
-int ext3_orphan_add(handle_t *handle, struct inode *inode)
+int ext4_orphan_add(handle_t *handle, struct inode *inode)
{
struct super_block *sb = inode->i_sb;
- struct ext3_iloc iloc;
+ struct ext4_iloc iloc;
int err = 0, rc;
lock_super(sb);
- if (!list_empty(&EXT3_I(inode)->i_orphan))
+ if (!list_empty(&EXT4_I(inode)->i_orphan))
goto out_unlock;
/* Orphan handling is only valid for files with data blocks
* being truncated, or files being unlinked. */
/* @@@ FIXME: Observation from aviro:
- * I think I can trigger J_ASSERT in ext3_orphan_add(). We block
- * here (on lock_super()), so race with ext3_link() which might bump
+ * I think I can trigger J_ASSERT in ext4_orphan_add(). We block
+ * here (on lock_super()), so race with ext4_link() which might bump
* ->i_nlink. For, say it, character device. Not a regular file,
* not a directory, not a symlink and ->i_nlink > 0.
*/
J_ASSERT ((S_ISREG(inode->i_mode) || S_ISDIR(inode->i_mode) ||
S_ISLNK(inode->i_mode)) || inode->i_nlink == 0);
- BUFFER_TRACE(EXT3_SB(sb)->s_sbh, "get_write_access");
- err = ext3_journal_get_write_access(handle, EXT3_SB(sb)->s_sbh);
+ BUFFER_TRACE(EXT4_SB(sb)->s_sbh, "get_write_access");
+ err = ext4_journal_get_write_access(handle, EXT4_SB(sb)->s_sbh);
if (err)
goto out_unlock;
- err = ext3_reserve_inode_write(handle, inode, &iloc);
+ err = ext4_reserve_inode_write(handle, inode, &iloc);
if (err)
goto out_unlock;
/* Insert this inode at the head of the on-disk orphan list... */
- NEXT_ORPHAN(inode) = le32_to_cpu(EXT3_SB(sb)->s_es->s_last_orphan);
- EXT3_SB(sb)->s_es->s_last_orphan = cpu_to_le32(inode->i_ino);
- err = ext3_journal_dirty_metadata(handle, EXT3_SB(sb)->s_sbh);
- rc = ext3_mark_iloc_dirty(handle, inode, &iloc);
+ NEXT_ORPHAN(inode) = le32_to_cpu(EXT4_SB(sb)->s_es->s_last_orphan);
+ EXT4_SB(sb)->s_es->s_last_orphan = cpu_to_le32(inode->i_ino);
+ err = ext4_journal_dirty_metadata(handle, EXT4_SB(sb)->s_sbh);
+ rc = ext4_mark_iloc_dirty(handle, inode, &iloc);
if (!err)
err = rc;
* This is safe: on error we're going to ignore the orphan list
* anyway on the next recovery. */
if (!err)
- list_add(&EXT3_I(inode)->i_orphan, &EXT3_SB(sb)->s_orphan);
+ list_add(&EXT4_I(inode)->i_orphan, &EXT4_SB(sb)->s_orphan);
jbd_debug(4, "superblock will point to %lu\n", inode->i_ino);
jbd_debug(4, "orphan inode %lu will point to %d\n",
inode->i_ino, NEXT_ORPHAN(inode));
out_unlock:
unlock_super(sb);
- ext3_std_error(inode->i_sb, err);
+ ext4_std_error(inode->i_sb, err);
return err;
}
/*
- * ext3_orphan_del() removes an unlinked or truncated inode from the list
+ * ext4_orphan_del() removes an unlinked or truncated inode from the list
* of such inodes stored on disk, because it is finally being cleaned up.
*/
-int ext3_orphan_del(handle_t *handle, struct inode *inode)
+int ext4_orphan_del(handle_t *handle, struct inode *inode)
{
struct list_head *prev;
- struct ext3_inode_info *ei = EXT3_I(inode);
- struct ext3_sb_info *sbi;
+ struct ext4_inode_info *ei = EXT4_I(inode);
+ struct ext4_sb_info *sbi;
unsigned long ino_next;
- struct ext3_iloc iloc;
+ struct ext4_iloc iloc;
int err = 0;
lock_super(inode->i_sb);
ino_next = NEXT_ORPHAN(inode);
prev = ei->i_orphan.prev;
- sbi = EXT3_SB(inode->i_sb);
+ sbi = EXT4_SB(inode->i_sb);
jbd_debug(4, "remove inode %lu from orphan list\n", inode->i_ino);
if (!handle)
goto out;
- err = ext3_reserve_inode_write(handle, inode, &iloc);
+ err = ext4_reserve_inode_write(handle, inode, &iloc);
if (err)
goto out_err;
if (prev == &sbi->s_orphan) {
jbd_debug(4, "superblock will point to %lu\n", ino_next);
BUFFER_TRACE(sbi->s_sbh, "get_write_access");
- err = ext3_journal_get_write_access(handle, sbi->s_sbh);
+ err = ext4_journal_get_write_access(handle, sbi->s_sbh);
if (err)
goto out_brelse;
sbi->s_es->s_last_orphan = cpu_to_le32(ino_next);
- err = ext3_journal_dirty_metadata(handle, sbi->s_sbh);
+ err = ext4_journal_dirty_metadata(handle, sbi->s_sbh);
} else {
- struct ext3_iloc iloc2;
+ struct ext4_iloc iloc2;
struct inode *i_prev =
- &list_entry(prev, struct ext3_inode_info, i_orphan)->vfs_inode;
+ &list_entry(prev, struct ext4_inode_info, i_orphan)->vfs_inode;
jbd_debug(4, "orphan inode %lu will point to %lu\n",
i_prev->i_ino, ino_next);
- err = ext3_reserve_inode_write(handle, i_prev, &iloc2);
+ err = ext4_reserve_inode_write(handle, i_prev, &iloc2);
if (err)
goto out_brelse;
NEXT_ORPHAN(i_prev) = ino_next;
- err = ext3_mark_iloc_dirty(handle, i_prev, &iloc2);
+ err = ext4_mark_iloc_dirty(handle, i_prev, &iloc2);
}
if (err)
goto out_brelse;
NEXT_ORPHAN(inode) = 0;
- err = ext3_mark_iloc_dirty(handle, inode, &iloc);
+ err = ext4_mark_iloc_dirty(handle, inode, &iloc);
out_err:
- ext3_std_error(inode->i_sb, err);
+ ext4_std_error(inode->i_sb, err);
out:
unlock_super(inode->i_sb);
return err;
goto out_err;
}
-static int ext3_rmdir (struct inode * dir, struct dentry *dentry)
+static int ext4_rmdir (struct inode * dir, struct dentry *dentry)
{
int retval;
struct inode * inode;
struct buffer_head * bh;
- struct ext3_dir_entry_2 * de;
+ struct ext4_dir_entry_2 * de;
handle_t *handle;
/* Initialize quotas before so that eventual writes go in
* separate transaction */
DQUOT_INIT(dentry->d_inode);
- handle = ext3_journal_start(dir, EXT3_DELETE_TRANS_BLOCKS(dir->i_sb));
+ handle = ext4_journal_start(dir, EXT4_DELETE_TRANS_BLOCKS(dir->i_sb));
if (IS_ERR(handle))
return PTR_ERR(handle);
retval = -ENOENT;
- bh = ext3_find_entry (dentry, &de);
+ bh = ext4_find_entry (dentry, &de);
if (!bh)
goto end_rmdir;
if (!empty_dir (inode))
goto end_rmdir;
- retval = ext3_delete_entry(handle, dir, de, bh);
+ retval = ext4_delete_entry(handle, dir, de, bh);
if (retval)
goto end_rmdir;
if (inode->i_nlink != 2)
- ext3_warning (inode->i_sb, "ext3_rmdir",
+ ext4_warning (inode->i_sb, "ext4_rmdir",
"empty directory has nlink!=2 (%d)",
inode->i_nlink);
inode->i_version++;
* zero will ensure that the right thing happens during any
* recovery. */
inode->i_size = 0;
- ext3_orphan_add(handle, inode);
+ ext4_orphan_add(handle, inode);
inode->i_ctime = dir->i_ctime = dir->i_mtime = CURRENT_TIME_SEC;
- ext3_mark_inode_dirty(handle, inode);
+ ext4_mark_inode_dirty(handle, inode);
drop_nlink(dir);
- ext3_update_dx_flag(dir);
- ext3_mark_inode_dirty(handle, dir);
+ ext4_update_dx_flag(dir);
+ ext4_mark_inode_dirty(handle, dir);
end_rmdir:
- ext3_journal_stop(handle);
+ ext4_journal_stop(handle);
brelse (bh);
return retval;
}
-static int ext3_unlink(struct inode * dir, struct dentry *dentry)
+static int ext4_unlink(struct inode * dir, struct dentry *dentry)
{
int retval;
struct inode * inode;
struct buffer_head * bh;
- struct ext3_dir_entry_2 * de;
+ struct ext4_dir_entry_2 * de;
handle_t *handle;
/* Initialize quotas before so that eventual writes go
* in separate transaction */
DQUOT_INIT(dentry->d_inode);
- handle = ext3_journal_start(dir, EXT3_DELETE_TRANS_BLOCKS(dir->i_sb));
+ handle = ext4_journal_start(dir, EXT4_DELETE_TRANS_BLOCKS(dir->i_sb));
if (IS_ERR(handle))
return PTR_ERR(handle);
handle->h_sync = 1;
retval = -ENOENT;
- bh = ext3_find_entry (dentry, &de);
+ bh = ext4_find_entry (dentry, &de);
if (!bh)
goto end_unlink;
goto end_unlink;
if (!inode->i_nlink) {
- ext3_warning (inode->i_sb, "ext3_unlink",
+ ext4_warning (inode->i_sb, "ext4_unlink",
"Deleting nonexistent file (%lu), %d",
inode->i_ino, inode->i_nlink);
inode->i_nlink = 1;
}
- retval = ext3_delete_entry(handle, dir, de, bh);
+ retval = ext4_delete_entry(handle, dir, de, bh);
if (retval)
goto end_unlink;
dir->i_ctime = dir->i_mtime = CURRENT_TIME_SEC;
- ext3_update_dx_flag(dir);
- ext3_mark_inode_dirty(handle, dir);
+ ext4_update_dx_flag(dir);
+ ext4_mark_inode_dirty(handle, dir);
drop_nlink(inode);
if (!inode->i_nlink)
- ext3_orphan_add(handle, inode);
+ ext4_orphan_add(handle, inode);
inode->i_ctime = dir->i_ctime;
- ext3_mark_inode_dirty(handle, inode);
+ ext4_mark_inode_dirty(handle, inode);
retval = 0;
end_unlink:
- ext3_journal_stop(handle);
+ ext4_journal_stop(handle);
brelse (bh);
return retval;
}
-static int ext3_symlink (struct inode * dir,
+static int ext4_symlink (struct inode * dir,
struct dentry *dentry, const char * symname)
{
handle_t *handle;
return -ENAMETOOLONG;
retry:
- handle = ext3_journal_start(dir, EXT3_DATA_TRANS_BLOCKS(dir->i_sb) +
- EXT3_INDEX_EXTRA_TRANS_BLOCKS + 5 +
- 2*EXT3_QUOTA_INIT_BLOCKS(dir->i_sb));
+ handle = ext4_journal_start(dir, EXT4_DATA_TRANS_BLOCKS(dir->i_sb) +
+ EXT4_INDEX_EXTRA_TRANS_BLOCKS + 5 +
+ 2*EXT4_QUOTA_INIT_BLOCKS(dir->i_sb));
if (IS_ERR(handle))
return PTR_ERR(handle);
if (IS_DIRSYNC(dir))
handle->h_sync = 1;
- inode = ext3_new_inode (handle, dir, S_IFLNK|S_IRWXUGO);
+ inode = ext4_new_inode (handle, dir, S_IFLNK|S_IRWXUGO);
err = PTR_ERR(inode);
if (IS_ERR(inode))
goto out_stop;
- if (l > sizeof (EXT3_I(inode)->i_data)) {
- inode->i_op = &ext3_symlink_inode_operations;
- ext3_set_aops(inode);
+ if (l > sizeof (EXT4_I(inode)->i_data)) {
+ inode->i_op = &ext4_symlink_inode_operations;
+ ext4_set_aops(inode);
/*
- * page_symlink() calls into ext3_prepare/commit_write.
+ * page_symlink() calls into ext4_prepare/commit_write.
* We have a transaction open. All is sweetness. It also sets
* i_size in generic_commit_write().
*/
err = __page_symlink(inode, symname, l,
mapping_gfp_mask(inode->i_mapping) & ~__GFP_FS);
if (err) {
- ext3_dec_count(handle, inode);
- ext3_mark_inode_dirty(handle, inode);
+ ext4_dec_count(handle, inode);
+ ext4_mark_inode_dirty(handle, inode);
iput (inode);
goto out_stop;
}
} else {
- inode->i_op = &ext3_fast_symlink_inode_operations;
- memcpy((char*)&EXT3_I(inode)->i_data,symname,l);
+ inode->i_op = &ext4_fast_symlink_inode_operations;
+ memcpy((char*)&EXT4_I(inode)->i_data,symname,l);
inode->i_size = l-1;
}
- EXT3_I(inode)->i_disksize = inode->i_size;
- err = ext3_add_nondir(handle, dentry, inode);
+ EXT4_I(inode)->i_disksize = inode->i_size;
+ err = ext4_add_nondir(handle, dentry, inode);
out_stop:
- ext3_journal_stop(handle);
- if (err == -ENOSPC && ext3_should_retry_alloc(dir->i_sb, &retries))
+ ext4_journal_stop(handle);
+ if (err == -ENOSPC && ext4_should_retry_alloc(dir->i_sb, &retries))
goto retry;
return err;
}
-static int ext3_link (struct dentry * old_dentry,
+static int ext4_link (struct dentry * old_dentry,
struct inode * dir, struct dentry *dentry)
{
handle_t *handle;
struct inode *inode = old_dentry->d_inode;
int err, retries = 0;
- if (inode->i_nlink >= EXT3_LINK_MAX)
+ if (inode->i_nlink >= EXT4_LINK_MAX)
return -EMLINK;
retry:
- handle = ext3_journal_start(dir, EXT3_DATA_TRANS_BLOCKS(dir->i_sb) +
- EXT3_INDEX_EXTRA_TRANS_BLOCKS);
+ handle = ext4_journal_start(dir, EXT4_DATA_TRANS_BLOCKS(dir->i_sb) +
+ EXT4_INDEX_EXTRA_TRANS_BLOCKS);
if (IS_ERR(handle))
return PTR_ERR(handle);
handle->h_sync = 1;
inode->i_ctime = CURRENT_TIME_SEC;
- ext3_inc_count(handle, inode);
+ ext4_inc_count(handle, inode);
atomic_inc(&inode->i_count);
- err = ext3_add_nondir(handle, dentry, inode);
- ext3_journal_stop(handle);
- if (err == -ENOSPC && ext3_should_retry_alloc(dir->i_sb, &retries))
+ err = ext4_add_nondir(handle, dentry, inode);
+ ext4_journal_stop(handle);
+ if (err == -ENOSPC && ext4_should_retry_alloc(dir->i_sb, &retries))
goto retry;
return err;
}
#define PARENT_INO(buffer) \
- ((struct ext3_dir_entry_2 *) ((char *) buffer + \
- le16_to_cpu(((struct ext3_dir_entry_2 *) buffer)->rec_len)))->inode
+ ((struct ext4_dir_entry_2 *) ((char *) buffer + \
+ le16_to_cpu(((struct ext4_dir_entry_2 *) buffer)->rec_len)))->inode
/*
* Anybody can rename anything with this: the permission checks are left to the
* higher-level routines.
*/
-static int ext3_rename (struct inode * old_dir, struct dentry *old_dentry,
+static int ext4_rename (struct inode * old_dir, struct dentry *old_dentry,
struct inode * new_dir,struct dentry *new_dentry)
{
handle_t *handle;
struct inode * old_inode, * new_inode;
struct buffer_head * old_bh, * new_bh, * dir_bh;
- struct ext3_dir_entry_2 * old_de, * new_de;
+ struct ext4_dir_entry_2 * old_de, * new_de;
int retval;
old_bh = new_bh = dir_bh = NULL;
* in separate transaction */
if (new_dentry->d_inode)
DQUOT_INIT(new_dentry->d_inode);
- handle = ext3_journal_start(old_dir, 2 *
- EXT3_DATA_TRANS_BLOCKS(old_dir->i_sb) +
- EXT3_INDEX_EXTRA_TRANS_BLOCKS + 2);
+ handle = ext4_journal_start(old_dir, 2 *
+ EXT4_DATA_TRANS_BLOCKS(old_dir->i_sb) +
+ EXT4_INDEX_EXTRA_TRANS_BLOCKS + 2);
if (IS_ERR(handle))
return PTR_ERR(handle);
if (IS_DIRSYNC(old_dir) || IS_DIRSYNC(new_dir))
handle->h_sync = 1;
- old_bh = ext3_find_entry (old_dentry, &old_de);
+ old_bh = ext4_find_entry (old_dentry, &old_de);
/*
* Check for inode number is _not_ due to possible IO errors.
* We might rmdir the source, keep it as pwd of some process
goto end_rename;
new_inode = new_dentry->d_inode;
- new_bh = ext3_find_entry (new_dentry, &new_de);
+ new_bh = ext4_find_entry (new_dentry, &new_de);
if (new_bh) {
if (!new_inode) {
brelse (new_bh);
goto end_rename;
}
retval = -EIO;
- dir_bh = ext3_bread (handle, old_inode, 0, 0, &retval);
+ dir_bh = ext4_bread (handle, old_inode, 0, 0, &retval);
if (!dir_bh)
goto end_rename;
if (le32_to_cpu(PARENT_INO(dir_bh->b_data)) != old_dir->i_ino)
goto end_rename;
retval = -EMLINK;
if (!new_inode && new_dir!=old_dir &&
- new_dir->i_nlink >= EXT3_LINK_MAX)
+ new_dir->i_nlink >= EXT4_LINK_MAX)
goto end_rename;
}
if (!new_bh) {
- retval = ext3_add_entry (handle, new_dentry, old_inode);
+ retval = ext4_add_entry (handle, new_dentry, old_inode);
if (retval)
goto end_rename;
} else {
BUFFER_TRACE(new_bh, "get write access");
- ext3_journal_get_write_access(handle, new_bh);
+ ext4_journal_get_write_access(handle, new_bh);
new_de->inode = cpu_to_le32(old_inode->i_ino);
- if (EXT3_HAS_INCOMPAT_FEATURE(new_dir->i_sb,
- EXT3_FEATURE_INCOMPAT_FILETYPE))
+ if (EXT4_HAS_INCOMPAT_FEATURE(new_dir->i_sb,
+ EXT4_FEATURE_INCOMPAT_FILETYPE))
new_de->file_type = old_de->file_type;
new_dir->i_version++;
- BUFFER_TRACE(new_bh, "call ext3_journal_dirty_metadata");
- ext3_journal_dirty_metadata(handle, new_bh);
+ BUFFER_TRACE(new_bh, "call ext4_journal_dirty_metadata");
+ ext4_journal_dirty_metadata(handle, new_bh);
brelse(new_bh);
new_bh = NULL;
}
* rename.
*/
old_inode->i_ctime = CURRENT_TIME_SEC;
- ext3_mark_inode_dirty(handle, old_inode);
+ ext4_mark_inode_dirty(handle, old_inode);
/*
* ok, that's it
if (le32_to_cpu(old_de->inode) != old_inode->i_ino ||
old_de->name_len != old_dentry->d_name.len ||
strncmp(old_de->name, old_dentry->d_name.name, old_de->name_len) ||
- (retval = ext3_delete_entry(handle, old_dir,
+ (retval = ext4_delete_entry(handle, old_dir,
old_de, old_bh)) == -ENOENT) {
/* old_de could have moved from under us during htree split, so
* make sure that we are deleting the right entry. We might
* also be pointing to a stale entry in the unused part of
* old_bh so just checking inum and the name isn't enough. */
struct buffer_head *old_bh2;
- struct ext3_dir_entry_2 *old_de2;
+ struct ext4_dir_entry_2 *old_de2;
- old_bh2 = ext3_find_entry(old_dentry, &old_de2);
+ old_bh2 = ext4_find_entry(old_dentry, &old_de2);
if (old_bh2) {
- retval = ext3_delete_entry(handle, old_dir,
+ retval = ext4_delete_entry(handle, old_dir,
old_de2, old_bh2);
brelse(old_bh2);
}
}
if (retval) {
- ext3_warning(old_dir->i_sb, "ext3_rename",
+ ext4_warning(old_dir->i_sb, "ext4_rename",
"Deleting old file (%lu), %d, error=%d",
old_dir->i_ino, old_dir->i_nlink, retval);
}
new_inode->i_ctime = CURRENT_TIME_SEC;
}
old_dir->i_ctime = old_dir->i_mtime = CURRENT_TIME_SEC;
- ext3_update_dx_flag(old_dir);
+ ext4_update_dx_flag(old_dir);
if (dir_bh) {
BUFFER_TRACE(dir_bh, "get_write_access");
- ext3_journal_get_write_access(handle, dir_bh);
+ ext4_journal_get_write_access(handle, dir_bh);
PARENT_INO(dir_bh->b_data) = cpu_to_le32(new_dir->i_ino);
- BUFFER_TRACE(dir_bh, "call ext3_journal_dirty_metadata");
- ext3_journal_dirty_metadata(handle, dir_bh);
+ BUFFER_TRACE(dir_bh, "call ext4_journal_dirty_metadata");
+ ext4_journal_dirty_metadata(handle, dir_bh);
drop_nlink(old_dir);
if (new_inode) {
drop_nlink(new_inode);
} else {
inc_nlink(new_dir);
- ext3_update_dx_flag(new_dir);
- ext3_mark_inode_dirty(handle, new_dir);
+ ext4_update_dx_flag(new_dir);
+ ext4_mark_inode_dirty(handle, new_dir);
}
}
- ext3_mark_inode_dirty(handle, old_dir);
+ ext4_mark_inode_dirty(handle, old_dir);
if (new_inode) {
- ext3_mark_inode_dirty(handle, new_inode);
+ ext4_mark_inode_dirty(handle, new_inode);
if (!new_inode->i_nlink)
- ext3_orphan_add(handle, new_inode);
+ ext4_orphan_add(handle, new_inode);
}
retval = 0;
brelse (dir_bh);
brelse (old_bh);
brelse (new_bh);
- ext3_journal_stop(handle);
+ ext4_journal_stop(handle);
return retval;
}
/*
* directories can handle most operations...
*/
-struct inode_operations ext3_dir_inode_operations = {
- .create = ext3_create,
- .lookup = ext3_lookup,
- .link = ext3_link,
- .unlink = ext3_unlink,
- .symlink = ext3_symlink,
- .mkdir = ext3_mkdir,
- .rmdir = ext3_rmdir,
- .mknod = ext3_mknod,
- .rename = ext3_rename,
- .setattr = ext3_setattr,
-#ifdef CONFIG_EXT3_FS_XATTR
+struct inode_operations ext4_dir_inode_operations = {
+ .create = ext4_create,
+ .lookup = ext4_lookup,
+ .link = ext4_link,
+ .unlink = ext4_unlink,
+ .symlink = ext4_symlink,
+ .mkdir = ext4_mkdir,
+ .rmdir = ext4_rmdir,
+ .mknod = ext4_mknod,
+ .rename = ext4_rename,
+ .setattr = ext4_setattr,
+#ifdef CONFIG_EXT4DEV_FS_XATTR
.setxattr = generic_setxattr,
.getxattr = generic_getxattr,
- .listxattr = ext3_listxattr,
+ .listxattr = ext4_listxattr,
.removexattr = generic_removexattr,
#endif
- .permission = ext3_permission,
+ .permission = ext4_permission,
};
-struct inode_operations ext3_special_inode_operations = {
- .setattr = ext3_setattr,
-#ifdef CONFIG_EXT3_FS_XATTR
+struct inode_operations ext4_special_inode_operations = {
+ .setattr = ext4_setattr,
+#ifdef CONFIG_EXT4DEV_FS_XATTR
.setxattr = generic_setxattr,
.getxattr = generic_getxattr,
- .listxattr = ext3_listxattr,
+ .listxattr = ext4_listxattr,
.removexattr = generic_removexattr,
#endif
- .permission = ext3_permission,
+ .permission = ext4_permission,
};
-/* linux/fs/ext3/namei.h
+/* linux/fs/ext4/namei.h
*
* Copyright (C) 2005 Simtec Electronics
* Ben Dooks <ben@simtec.co.uk>
*
*/
-extern struct dentry *ext3_get_parent(struct dentry *child);
+extern struct dentry *ext4_get_parent(struct dentry *child);
/*
- * linux/fs/ext3/resize.c
+ * linux/fs/ext4/resize.c
*
- * Support for resizing an ext3 filesystem while it is mounted.
+ * Support for resizing an ext4 filesystem while it is mounted.
*
* Copyright (C) 2001, 2002 Andreas Dilger <adilger@clusterfs.com>
*
*/
-#define EXT3FS_DEBUG
+#define EXT4FS_DEBUG
#include <linux/sched.h>
#include <linux/smp_lock.h>
-#include <linux/ext3_jbd.h>
+#include <linux/ext4_jbd.h>
#include <linux/errno.h>
#include <linux/slab.h>
#define inside(b, first, last) ((b) >= (first) && (b) < (last))
static int verify_group_input(struct super_block *sb,
- struct ext3_new_group_data *input)
+ struct ext4_new_group_data *input)
{
- struct ext3_sb_info *sbi = EXT3_SB(sb);
- struct ext3_super_block *es = sbi->s_es;
- ext3_fsblk_t start = le32_to_cpu(es->s_blocks_count);
- ext3_fsblk_t end = start + input->blocks_count;
+ struct ext4_sb_info *sbi = EXT4_SB(sb);
+ struct ext4_super_block *es = sbi->s_es;
+ ext4_fsblk_t start = le32_to_cpu(es->s_blocks_count);
+ ext4_fsblk_t end = start + input->blocks_count;
unsigned group = input->group;
- ext3_fsblk_t itend = input->inode_table + sbi->s_itb_per_group;
- unsigned overhead = ext3_bg_has_super(sb, group) ?
- (1 + ext3_bg_num_gdb(sb, group) +
+ ext4_fsblk_t itend = input->inode_table + sbi->s_itb_per_group;
+ unsigned overhead = ext4_bg_has_super(sb, group) ?
+ (1 + ext4_bg_num_gdb(sb, group) +
le16_to_cpu(es->s_reserved_gdt_blocks)) : 0;
- ext3_fsblk_t metaend = start + overhead;
+ ext4_fsblk_t metaend = start + overhead;
struct buffer_head *bh = NULL;
- ext3_grpblk_t free_blocks_count;
+ ext4_grpblk_t free_blocks_count;
int err = -EINVAL;
input->free_blocks_count = free_blocks_count =
input->blocks_count - 2 - overhead - sbi->s_itb_per_group;
if (test_opt(sb, DEBUG))
- printk(KERN_DEBUG "EXT3-fs: adding %s group %u: %u blocks "
+ printk(KERN_DEBUG "EXT4-fs: adding %s group %u: %u blocks "
"(%d free, %u reserved)\n",
- ext3_bg_has_super(sb, input->group) ? "normal" :
+ ext4_bg_has_super(sb, input->group) ? "normal" :
"no-super", input->group, input->blocks_count,
free_blocks_count, input->reserved_blocks);
if (group != sbi->s_groups_count)
- ext3_warning(sb, __FUNCTION__,
+ ext4_warning(sb, __FUNCTION__,
"Cannot add at group %u (only %lu groups)",
input->group, sbi->s_groups_count);
else if ((start - le32_to_cpu(es->s_first_data_block)) %
- EXT3_BLOCKS_PER_GROUP(sb))
- ext3_warning(sb, __FUNCTION__, "Last group not full");
+ EXT4_BLOCKS_PER_GROUP(sb))
+ ext4_warning(sb, __FUNCTION__, "Last group not full");
else if (input->reserved_blocks > input->blocks_count / 5)
- ext3_warning(sb, __FUNCTION__, "Reserved blocks too high (%u)",
+ ext4_warning(sb, __FUNCTION__, "Reserved blocks too high (%u)",
input->reserved_blocks);
else if (free_blocks_count < 0)
- ext3_warning(sb, __FUNCTION__, "Bad blocks count %u",
+ ext4_warning(sb, __FUNCTION__, "Bad blocks count %u",
input->blocks_count);
else if (!(bh = sb_bread(sb, end - 1)))
- ext3_warning(sb, __FUNCTION__,
+ ext4_warning(sb, __FUNCTION__,
"Cannot read last block ("E3FSBLK")",
end - 1);
else if (outside(input->block_bitmap, start, end))
- ext3_warning(sb, __FUNCTION__,
+ ext4_warning(sb, __FUNCTION__,
"Block bitmap not in group (block %u)",
input->block_bitmap);
else if (outside(input->inode_bitmap, start, end))
- ext3_warning(sb, __FUNCTION__,
+ ext4_warning(sb, __FUNCTION__,
"Inode bitmap not in group (block %u)",
input->inode_bitmap);
else if (outside(input->inode_table, start, end) ||
outside(itend - 1, start, end))
- ext3_warning(sb, __FUNCTION__,
+ ext4_warning(sb, __FUNCTION__,
"Inode table not in group (blocks %u-"E3FSBLK")",
input->inode_table, itend - 1);
else if (input->inode_bitmap == input->block_bitmap)
- ext3_warning(sb, __FUNCTION__,
+ ext4_warning(sb, __FUNCTION__,
"Block bitmap same as inode bitmap (%u)",
input->block_bitmap);
else if (inside(input->block_bitmap, input->inode_table, itend))
- ext3_warning(sb, __FUNCTION__,
+ ext4_warning(sb, __FUNCTION__,
"Block bitmap (%u) in inode table (%u-"E3FSBLK")",
input->block_bitmap, input->inode_table, itend-1);
else if (inside(input->inode_bitmap, input->inode_table, itend))
- ext3_warning(sb, __FUNCTION__,
+ ext4_warning(sb, __FUNCTION__,
"Inode bitmap (%u) in inode table (%u-"E3FSBLK")",
input->inode_bitmap, input->inode_table, itend-1);
else if (inside(input->block_bitmap, start, metaend))
- ext3_warning(sb, __FUNCTION__,
+ ext4_warning(sb, __FUNCTION__,
"Block bitmap (%u) in GDT table"
" ("E3FSBLK"-"E3FSBLK")",
input->block_bitmap, start, metaend - 1);
else if (inside(input->inode_bitmap, start, metaend))
- ext3_warning(sb, __FUNCTION__,
+ ext4_warning(sb, __FUNCTION__,
"Inode bitmap (%u) in GDT table"
" ("E3FSBLK"-"E3FSBLK")",
input->inode_bitmap, start, metaend - 1);
else if (inside(input->inode_table, start, metaend) ||
inside(itend - 1, start, metaend))
- ext3_warning(sb, __FUNCTION__,
+ ext4_warning(sb, __FUNCTION__,
"Inode table (%u-"E3FSBLK") overlaps"
"GDT table ("E3FSBLK"-"E3FSBLK")",
input->inode_table, itend - 1, start, metaend - 1);
}
static struct buffer_head *bclean(handle_t *handle, struct super_block *sb,
- ext3_fsblk_t blk)
+ ext4_fsblk_t blk)
{
struct buffer_head *bh;
int err;
bh = sb_getblk(sb, blk);
if (!bh)
return ERR_PTR(-EIO);
- if ((err = ext3_journal_get_write_access(handle, bh))) {
+ if ((err = ext4_journal_get_write_access(handle, bh))) {
brelse(bh);
bh = ERR_PTR(err);
} else {
if (start_bit >= end_bit)
return;
- ext3_debug("mark end bits +%d through +%d used\n", start_bit, end_bit);
+ ext4_debug("mark end bits +%d through +%d used\n", start_bit, end_bit);
for (i = start_bit; i < ((start_bit + 7) & ~7UL); i++)
- ext3_set_bit(i, bitmap);
+ ext4_set_bit(i, bitmap);
if (i < end_bit)
memset(bitmap + (i >> 3), 0xff, (end_bit - i) >> 3);
}
* If any part of this fails, we simply abort the resize.
*/
static int setup_new_group_blocks(struct super_block *sb,
- struct ext3_new_group_data *input)
+ struct ext4_new_group_data *input)
{
- struct ext3_sb_info *sbi = EXT3_SB(sb);
- ext3_fsblk_t start = ext3_group_first_block_no(sb, input->group);
- int reserved_gdb = ext3_bg_has_super(sb, input->group) ?
+ struct ext4_sb_info *sbi = EXT4_SB(sb);
+ ext4_fsblk_t start = ext4_group_first_block_no(sb, input->group);
+ int reserved_gdb = ext4_bg_has_super(sb, input->group) ?
le16_to_cpu(sbi->s_es->s_reserved_gdt_blocks) : 0;
- unsigned long gdblocks = ext3_bg_num_gdb(sb, input->group);
+ unsigned long gdblocks = ext4_bg_num_gdb(sb, input->group);
struct buffer_head *bh;
handle_t *handle;
- ext3_fsblk_t block;
- ext3_grpblk_t bit;
+ ext4_fsblk_t block;
+ ext4_grpblk_t bit;
int i;
int err = 0, err2;
- handle = ext3_journal_start_sb(sb, reserved_gdb + gdblocks +
+ handle = ext4_journal_start_sb(sb, reserved_gdb + gdblocks +
2 + sbi->s_itb_per_group);
if (IS_ERR(handle))
return PTR_ERR(handle);
goto exit_journal;
}
- if (ext3_bg_has_super(sb, input->group)) {
- ext3_debug("mark backup superblock %#04lx (+0)\n", start);
- ext3_set_bit(0, bh->b_data);
+ if (ext4_bg_has_super(sb, input->group)) {
+ ext4_debug("mark backup superblock %#04lx (+0)\n", start);
+ ext4_set_bit(0, bh->b_data);
}
/* Copy all of the GDT blocks into the backup in this group */
i < gdblocks; i++, block++, bit++) {
struct buffer_head *gdb;
- ext3_debug("update backup group %#04lx (+%d)\n", block, bit);
+ ext4_debug("update backup group %#04lx (+%d)\n", block, bit);
gdb = sb_getblk(sb, block);
if (!gdb) {
err = -EIO;
goto exit_bh;
}
- if ((err = ext3_journal_get_write_access(handle, gdb))) {
+ if ((err = ext4_journal_get_write_access(handle, gdb))) {
brelse(gdb);
goto exit_bh;
}
memcpy(gdb->b_data, sbi->s_group_desc[i]->b_data, bh->b_size);
set_buffer_uptodate(gdb);
unlock_buffer(bh);
- ext3_journal_dirty_metadata(handle, gdb);
- ext3_set_bit(bit, bh->b_data);
+ ext4_journal_dirty_metadata(handle, gdb);
+ ext4_set_bit(bit, bh->b_data);
brelse(gdb);
}
i < reserved_gdb; i++, block++, bit++) {
struct buffer_head *gdb;
- ext3_debug("clear reserved block %#04lx (+%d)\n", block, bit);
+ ext4_debug("clear reserved block %#04lx (+%d)\n", block, bit);
if (IS_ERR(gdb = bclean(handle, sb, block))) {
err = PTR_ERR(bh);
goto exit_bh;
}
- ext3_journal_dirty_metadata(handle, gdb);
- ext3_set_bit(bit, bh->b_data);
+ ext4_journal_dirty_metadata(handle, gdb);
+ ext4_set_bit(bit, bh->b_data);
brelse(gdb);
}
- ext3_debug("mark block bitmap %#04x (+%ld)\n", input->block_bitmap,
+ ext4_debug("mark block bitmap %#04x (+%ld)\n", input->block_bitmap,
input->block_bitmap - start);
- ext3_set_bit(input->block_bitmap - start, bh->b_data);
- ext3_debug("mark inode bitmap %#04x (+%ld)\n", input->inode_bitmap,
+ ext4_set_bit(input->block_bitmap - start, bh->b_data);
+ ext4_debug("mark inode bitmap %#04x (+%ld)\n", input->inode_bitmap,
input->inode_bitmap - start);
- ext3_set_bit(input->inode_bitmap - start, bh->b_data);
+ ext4_set_bit(input->inode_bitmap - start, bh->b_data);
/* Zero out all of the inode table blocks */
for (i = 0, block = input->inode_table, bit = block - start;
i < sbi->s_itb_per_group; i++, bit++, block++) {
struct buffer_head *it;
- ext3_debug("clear inode block %#04lx (+%d)\n", block, bit);
+ ext4_debug("clear inode block %#04lx (+%d)\n", block, bit);
if (IS_ERR(it = bclean(handle, sb, block))) {
err = PTR_ERR(it);
goto exit_bh;
}
- ext3_journal_dirty_metadata(handle, it);
+ ext4_journal_dirty_metadata(handle, it);
brelse(it);
- ext3_set_bit(bit, bh->b_data);
+ ext4_set_bit(bit, bh->b_data);
}
- mark_bitmap_end(input->blocks_count, EXT3_BLOCKS_PER_GROUP(sb),
+ mark_bitmap_end(input->blocks_count, EXT4_BLOCKS_PER_GROUP(sb),
bh->b_data);
- ext3_journal_dirty_metadata(handle, bh);
+ ext4_journal_dirty_metadata(handle, bh);
brelse(bh);
/* Mark unused entries in inode bitmap used */
- ext3_debug("clear inode bitmap %#04x (+%ld)\n",
+ ext4_debug("clear inode bitmap %#04x (+%ld)\n",
input->inode_bitmap, input->inode_bitmap - start);
if (IS_ERR(bh = bclean(handle, sb, input->inode_bitmap))) {
err = PTR_ERR(bh);
goto exit_journal;
}
- mark_bitmap_end(EXT3_INODES_PER_GROUP(sb), EXT3_BLOCKS_PER_GROUP(sb),
+ mark_bitmap_end(EXT4_INODES_PER_GROUP(sb), EXT4_BLOCKS_PER_GROUP(sb),
bh->b_data);
- ext3_journal_dirty_metadata(handle, bh);
+ ext4_journal_dirty_metadata(handle, bh);
exit_bh:
brelse(bh);
exit_journal:
unlock_super(sb);
- if ((err2 = ext3_journal_stop(handle)) && !err)
+ if ((err2 = ext4_journal_stop(handle)) && !err)
err = err2;
return err;
/*
* Iterate through the groups which hold BACKUP superblock/GDT copies in an
- * ext3 filesystem. The counters should be initialized to 1, 5, and 7 before
+ * ext4 filesystem. The counters should be initialized to 1, 5, and 7 before
* calling this for the first time. In a sparse filesystem it will be the
* sequence of powers of 3, 5, and 7: 1, 3, 5, 7, 9, 25, 27, 49, 81, ...
* For a non-sparse filesystem it will be every group: 1, 2, 3, 4, ...
*/
-static unsigned ext3_list_backups(struct super_block *sb, unsigned *three,
+static unsigned ext4_list_backups(struct super_block *sb, unsigned *three,
unsigned *five, unsigned *seven)
{
unsigned *min = three;
int mult = 3;
unsigned ret;
- if (!EXT3_HAS_RO_COMPAT_FEATURE(sb,
- EXT3_FEATURE_RO_COMPAT_SPARSE_SUPER)) {
+ if (!EXT4_HAS_RO_COMPAT_FEATURE(sb,
+ EXT4_FEATURE_RO_COMPAT_SPARSE_SUPER)) {
ret = *min;
*min += 1;
return ret;
static int verify_reserved_gdb(struct super_block *sb,
struct buffer_head *primary)
{
- const ext3_fsblk_t blk = primary->b_blocknr;
- const unsigned long end = EXT3_SB(sb)->s_groups_count;
+ const ext4_fsblk_t blk = primary->b_blocknr;
+ const unsigned long end = EXT4_SB(sb)->s_groups_count;
unsigned three = 1;
unsigned five = 5;
unsigned seven = 7;
__le32 *p = (__le32 *)primary->b_data;
int gdbackups = 0;
- while ((grp = ext3_list_backups(sb, &three, &five, &seven)) < end) {
- if (le32_to_cpu(*p++) != grp * EXT3_BLOCKS_PER_GROUP(sb) + blk){
- ext3_warning(sb, __FUNCTION__,
+ while ((grp = ext4_list_backups(sb, &three, &five, &seven)) < end) {
+ if (le32_to_cpu(*p++) != grp * EXT4_BLOCKS_PER_GROUP(sb) + blk){
+ ext4_warning(sb, __FUNCTION__,
"reserved GDT "E3FSBLK
" missing grp %d ("E3FSBLK")",
blk, grp,
- grp * EXT3_BLOCKS_PER_GROUP(sb) + blk);
+ grp * EXT4_BLOCKS_PER_GROUP(sb) + blk);
return -EINVAL;
}
- if (++gdbackups > EXT3_ADDR_PER_BLOCK(sb))
+ if (++gdbackups > EXT4_ADDR_PER_BLOCK(sb))
return -EFBIG;
}
* fail once we start modifying the data on disk, because JBD has no rollback.
*/
static int add_new_gdb(handle_t *handle, struct inode *inode,
- struct ext3_new_group_data *input,
+ struct ext4_new_group_data *input,
struct buffer_head **primary)
{
struct super_block *sb = inode->i_sb;
- struct ext3_super_block *es = EXT3_SB(sb)->s_es;
- unsigned long gdb_num = input->group / EXT3_DESC_PER_BLOCK(sb);
- ext3_fsblk_t gdblock = EXT3_SB(sb)->s_sbh->b_blocknr + 1 + gdb_num;
+ struct ext4_super_block *es = EXT4_SB(sb)->s_es;
+ unsigned long gdb_num = input->group / EXT4_DESC_PER_BLOCK(sb);
+ ext4_fsblk_t gdblock = EXT4_SB(sb)->s_sbh->b_blocknr + 1 + gdb_num;
struct buffer_head **o_group_desc, **n_group_desc;
struct buffer_head *dind;
int gdbackups;
- struct ext3_iloc iloc;
+ struct ext4_iloc iloc;
__le32 *data;
int err;
if (test_opt(sb, DEBUG))
printk(KERN_DEBUG
- "EXT3-fs: ext3_add_new_gdb: adding group block %lu\n",
+ "EXT4-fs: ext4_add_new_gdb: adding group block %lu\n",
gdb_num);
/*
* because the user tools have no way of handling this. Probably a
* bad time to do it anyways.
*/
- if (EXT3_SB(sb)->s_sbh->b_blocknr !=
- le32_to_cpu(EXT3_SB(sb)->s_es->s_first_data_block)) {
- ext3_warning(sb, __FUNCTION__,
+ if (EXT4_SB(sb)->s_sbh->b_blocknr !=
+ le32_to_cpu(EXT4_SB(sb)->s_es->s_first_data_block)) {
+ ext4_warning(sb, __FUNCTION__,
"won't resize using backup superblock at %llu",
- (unsigned long long)EXT3_SB(sb)->s_sbh->b_blocknr);
+ (unsigned long long)EXT4_SB(sb)->s_sbh->b_blocknr);
return -EPERM;
}
goto exit_bh;
}
- data = EXT3_I(inode)->i_data + EXT3_DIND_BLOCK;
+ data = EXT4_I(inode)->i_data + EXT4_DIND_BLOCK;
dind = sb_bread(sb, le32_to_cpu(*data));
if (!dind) {
err = -EIO;
}
data = (__le32 *)dind->b_data;
- if (le32_to_cpu(data[gdb_num % EXT3_ADDR_PER_BLOCK(sb)]) != gdblock) {
- ext3_warning(sb, __FUNCTION__,
+ if (le32_to_cpu(data[gdb_num % EXT4_ADDR_PER_BLOCK(sb)]) != gdblock) {
+ ext4_warning(sb, __FUNCTION__,
"new group %u GDT block "E3FSBLK" not reserved",
input->group, gdblock);
err = -EINVAL;
goto exit_dind;
}
- if ((err = ext3_journal_get_write_access(handle, EXT3_SB(sb)->s_sbh)))
+ if ((err = ext4_journal_get_write_access(handle, EXT4_SB(sb)->s_sbh)))
goto exit_dind;
- if ((err = ext3_journal_get_write_access(handle, *primary)))
+ if ((err = ext4_journal_get_write_access(handle, *primary)))
goto exit_sbh;
- if ((err = ext3_journal_get_write_access(handle, dind)))
+ if ((err = ext4_journal_get_write_access(handle, dind)))
goto exit_primary;
- /* ext3_reserve_inode_write() gets a reference on the iloc */
- if ((err = ext3_reserve_inode_write(handle, inode, &iloc)))
+ /* ext4_reserve_inode_write() gets a reference on the iloc */
+ if ((err = ext4_reserve_inode_write(handle, inode, &iloc)))
goto exit_dindj;
n_group_desc = kmalloc((gdb_num + 1) * sizeof(struct buffer_head *),
GFP_KERNEL);
if (!n_group_desc) {
err = -ENOMEM;
- ext3_warning (sb, __FUNCTION__,
+ ext4_warning (sb, __FUNCTION__,
"not enough memory for %lu groups", gdb_num + 1);
goto exit_inode;
}
* these blocks, because they are marked as in-use from being in the
* reserved inode, and will become GDT blocks (primary and backup).
*/
- data[gdb_num % EXT3_ADDR_PER_BLOCK(sb)] = 0;
- ext3_journal_dirty_metadata(handle, dind);
+ data[gdb_num % EXT4_ADDR_PER_BLOCK(sb)] = 0;
+ ext4_journal_dirty_metadata(handle, dind);
brelse(dind);
inode->i_blocks -= (gdbackups + 1) * sb->s_blocksize >> 9;
- ext3_mark_iloc_dirty(handle, inode, &iloc);
+ ext4_mark_iloc_dirty(handle, inode, &iloc);
memset((*primary)->b_data, 0, sb->s_blocksize);
- ext3_journal_dirty_metadata(handle, *primary);
+ ext4_journal_dirty_metadata(handle, *primary);
- o_group_desc = EXT3_SB(sb)->s_group_desc;
+ o_group_desc = EXT4_SB(sb)->s_group_desc;
memcpy(n_group_desc, o_group_desc,
- EXT3_SB(sb)->s_gdb_count * sizeof(struct buffer_head *));
+ EXT4_SB(sb)->s_gdb_count * sizeof(struct buffer_head *));
n_group_desc[gdb_num] = *primary;
- EXT3_SB(sb)->s_group_desc = n_group_desc;
- EXT3_SB(sb)->s_gdb_count++;
+ EXT4_SB(sb)->s_group_desc = n_group_desc;
+ EXT4_SB(sb)->s_gdb_count++;
kfree(o_group_desc);
es->s_reserved_gdt_blocks =
cpu_to_le16(le16_to_cpu(es->s_reserved_gdt_blocks) - 1);
- ext3_journal_dirty_metadata(handle, EXT3_SB(sb)->s_sbh);
+ ext4_journal_dirty_metadata(handle, EXT4_SB(sb)->s_sbh);
return 0;
exit_inode:
- //ext3_journal_release_buffer(handle, iloc.bh);
+ //ext4_journal_release_buffer(handle, iloc.bh);
brelse(iloc.bh);
exit_dindj:
- //ext3_journal_release_buffer(handle, dind);
+ //ext4_journal_release_buffer(handle, dind);
exit_primary:
- //ext3_journal_release_buffer(handle, *primary);
+ //ext4_journal_release_buffer(handle, *primary);
exit_sbh:
- //ext3_journal_release_buffer(handle, *primary);
+ //ext4_journal_release_buffer(handle, *primary);
exit_dind:
brelse(dind);
exit_bh:
brelse(*primary);
- ext3_debug("leaving with error %d\n", err);
+ ext4_debug("leaving with error %d\n", err);
return err;
}
* backup GDT blocks are stored in their reserved primary GDT block.
*/
static int reserve_backup_gdb(handle_t *handle, struct inode *inode,
- struct ext3_new_group_data *input)
+ struct ext4_new_group_data *input)
{
struct super_block *sb = inode->i_sb;
- int reserved_gdb =le16_to_cpu(EXT3_SB(sb)->s_es->s_reserved_gdt_blocks);
+ int reserved_gdb =le16_to_cpu(EXT4_SB(sb)->s_es->s_reserved_gdt_blocks);
struct buffer_head **primary;
struct buffer_head *dind;
- struct ext3_iloc iloc;
- ext3_fsblk_t blk;
+ struct ext4_iloc iloc;
+ ext4_fsblk_t blk;
__le32 *data, *end;
int gdbackups = 0;
int res, i;
if (!primary)
return -ENOMEM;
- data = EXT3_I(inode)->i_data + EXT3_DIND_BLOCK;
+ data = EXT4_I(inode)->i_data + EXT4_DIND_BLOCK;
dind = sb_bread(sb, le32_to_cpu(*data));
if (!dind) {
err = -EIO;
goto exit_free;
}
- blk = EXT3_SB(sb)->s_sbh->b_blocknr + 1 + EXT3_SB(sb)->s_gdb_count;
- data = (__le32 *)dind->b_data + EXT3_SB(sb)->s_gdb_count;
- end = (__le32 *)dind->b_data + EXT3_ADDR_PER_BLOCK(sb);
+ blk = EXT4_SB(sb)->s_sbh->b_blocknr + 1 + EXT4_SB(sb)->s_gdb_count;
+ data = (__le32 *)dind->b_data + EXT4_SB(sb)->s_gdb_count;
+ end = (__le32 *)dind->b_data + EXT4_ADDR_PER_BLOCK(sb);
/* Get each reserved primary GDT block and verify it holds backups */
for (res = 0; res < reserved_gdb; res++, blk++) {
if (le32_to_cpu(*data) != blk) {
- ext3_warning(sb, __FUNCTION__,
+ ext4_warning(sb, __FUNCTION__,
"reserved block "E3FSBLK
" not at offset %ld",
blk,
}
for (i = 0; i < reserved_gdb; i++) {
- if ((err = ext3_journal_get_write_access(handle, primary[i]))) {
+ if ((err = ext4_journal_get_write_access(handle, primary[i]))) {
/*
int j;
for (j = 0; j < i; j++)
- ext3_journal_release_buffer(handle, primary[j]);
+ ext4_journal_release_buffer(handle, primary[j]);
*/
goto exit_bh;
}
}
- if ((err = ext3_reserve_inode_write(handle, inode, &iloc)))
+ if ((err = ext4_reserve_inode_write(handle, inode, &iloc)))
goto exit_bh;
/*
* Finally we can add each of the reserved backup GDT blocks from
* the new group to its reserved primary GDT block.
*/
- blk = input->group * EXT3_BLOCKS_PER_GROUP(sb);
+ blk = input->group * EXT4_BLOCKS_PER_GROUP(sb);
for (i = 0; i < reserved_gdb; i++) {
int err2;
data = (__le32 *)primary[i]->b_data;
primary[i]->b_blocknr, gdbackups,
blk + primary[i]->b_blocknr); */
data[gdbackups] = cpu_to_le32(blk + primary[i]->b_blocknr);
- err2 = ext3_journal_dirty_metadata(handle, primary[i]);
+ err2 = ext4_journal_dirty_metadata(handle, primary[i]);
if (!err)
err = err2;
}
inode->i_blocks += reserved_gdb * sb->s_blocksize >> 9;
- ext3_mark_iloc_dirty(handle, inode, &iloc);
+ ext4_mark_iloc_dirty(handle, inode, &iloc);
exit_bh:
while (--res >= 0)
}
/*
- * Update the backup copies of the ext3 metadata. These don't need to be part
+ * Update the backup copies of the ext4 metadata. These don't need to be part
* of the main resize transaction, because e2fsck will re-write them if there
* is a problem (basically only OOM will cause a problem). However, we
* _should_ update the backups if possible, in case the primary gets trashed
static void update_backups(struct super_block *sb,
int blk_off, char *data, int size)
{
- struct ext3_sb_info *sbi = EXT3_SB(sb);
+ struct ext4_sb_info *sbi = EXT4_SB(sb);
const unsigned long last = sbi->s_groups_count;
- const int bpg = EXT3_BLOCKS_PER_GROUP(sb);
+ const int bpg = EXT4_BLOCKS_PER_GROUP(sb);
unsigned three = 1;
unsigned five = 5;
unsigned seven = 7;
handle_t *handle;
int err = 0, err2;
- handle = ext3_journal_start_sb(sb, EXT3_MAX_TRANS_DATA);
+ handle = ext4_journal_start_sb(sb, EXT4_MAX_TRANS_DATA);
if (IS_ERR(handle)) {
group = 1;
err = PTR_ERR(handle);
goto exit_err;
}
- while ((group = ext3_list_backups(sb, &three, &five, &seven)) < last) {
+ while ((group = ext4_list_backups(sb, &three, &five, &seven)) < last) {
struct buffer_head *bh;
/* Out of journal space, and can't get more - abort - so sad */
if (handle->h_buffer_credits == 0 &&
- ext3_journal_extend(handle, EXT3_MAX_TRANS_DATA) &&
- (err = ext3_journal_restart(handle, EXT3_MAX_TRANS_DATA)))
+ ext4_journal_extend(handle, EXT4_MAX_TRANS_DATA) &&
+ (err = ext4_journal_restart(handle, EXT4_MAX_TRANS_DATA)))
break;
bh = sb_getblk(sb, group * bpg + blk_off);
err = -EIO;
break;
}
- ext3_debug("update metadata backup %#04lx\n",
+ ext4_debug("update metadata backup %#04lx\n",
(unsigned long)bh->b_blocknr);
- if ((err = ext3_journal_get_write_access(handle, bh)))
+ if ((err = ext4_journal_get_write_access(handle, bh)))
break;
lock_buffer(bh);
memcpy(bh->b_data, data, size);
memset(bh->b_data + size, 0, rest);
set_buffer_uptodate(bh);
unlock_buffer(bh);
- ext3_journal_dirty_metadata(handle, bh);
+ ext4_journal_dirty_metadata(handle, bh);
brelse(bh);
}
- if ((err2 = ext3_journal_stop(handle)) && !err)
+ if ((err2 = ext4_journal_stop(handle)) && !err)
err = err2;
/*
*/
exit_err:
if (err) {
- ext3_warning(sb, __FUNCTION__,
+ ext4_warning(sb, __FUNCTION__,
"can't update backup for group %d (err %d), "
"forcing fsck on next reboot", group, err);
- sbi->s_mount_state &= ~EXT3_VALID_FS;
- sbi->s_es->s_state &= cpu_to_le16(~EXT3_VALID_FS);
+ sbi->s_mount_state &= ~EXT4_VALID_FS;
+ sbi->s_es->s_state &= cpu_to_le16(~EXT4_VALID_FS);
mark_buffer_dirty(sbi->s_sbh);
}
}
* not really "added" the group at all. We re-check that we are still
* adding in the last group in case things have changed since verifying.
*/
-int ext3_group_add(struct super_block *sb, struct ext3_new_group_data *input)
+int ext4_group_add(struct super_block *sb, struct ext4_new_group_data *input)
{
- struct ext3_sb_info *sbi = EXT3_SB(sb);
- struct ext3_super_block *es = sbi->s_es;
- int reserved_gdb = ext3_bg_has_super(sb, input->group) ?
+ struct ext4_sb_info *sbi = EXT4_SB(sb);
+ struct ext4_super_block *es = sbi->s_es;
+ int reserved_gdb = ext4_bg_has_super(sb, input->group) ?
le16_to_cpu(es->s_reserved_gdt_blocks) : 0;
struct buffer_head *primary = NULL;
- struct ext3_group_desc *gdp;
+ struct ext4_group_desc *gdp;
struct inode *inode = NULL;
handle_t *handle;
int gdb_off, gdb_num;
int err, err2;
- gdb_num = input->group / EXT3_DESC_PER_BLOCK(sb);
- gdb_off = input->group % EXT3_DESC_PER_BLOCK(sb);
+ gdb_num = input->group / EXT4_DESC_PER_BLOCK(sb);
+ gdb_off = input->group % EXT4_DESC_PER_BLOCK(sb);
- if (gdb_off == 0 && !EXT3_HAS_RO_COMPAT_FEATURE(sb,
- EXT3_FEATURE_RO_COMPAT_SPARSE_SUPER)) {
- ext3_warning(sb, __FUNCTION__,
+ if (gdb_off == 0 && !EXT4_HAS_RO_COMPAT_FEATURE(sb,
+ EXT4_FEATURE_RO_COMPAT_SPARSE_SUPER)) {
+ ext4_warning(sb, __FUNCTION__,
"Can't resize non-sparse filesystem further");
return -EPERM;
}
if (le32_to_cpu(es->s_blocks_count) + input->blocks_count <
le32_to_cpu(es->s_blocks_count)) {
- ext3_warning(sb, __FUNCTION__, "blocks_count overflow\n");
+ ext4_warning(sb, __FUNCTION__, "blocks_count overflow\n");
return -EINVAL;
}
- if (le32_to_cpu(es->s_inodes_count) + EXT3_INODES_PER_GROUP(sb) <
+ if (le32_to_cpu(es->s_inodes_count) + EXT4_INODES_PER_GROUP(sb) <
le32_to_cpu(es->s_inodes_count)) {
- ext3_warning(sb, __FUNCTION__, "inodes_count overflow\n");
+ ext4_warning(sb, __FUNCTION__, "inodes_count overflow\n");
return -EINVAL;
}
if (reserved_gdb || gdb_off == 0) {
- if (!EXT3_HAS_COMPAT_FEATURE(sb,
- EXT3_FEATURE_COMPAT_RESIZE_INODE)){
- ext3_warning(sb, __FUNCTION__,
+ if (!EXT4_HAS_COMPAT_FEATURE(sb,
+ EXT4_FEATURE_COMPAT_RESIZE_INODE)){
+ ext4_warning(sb, __FUNCTION__,
"No reserved GDT blocks, can't resize");
return -EPERM;
}
- inode = iget(sb, EXT3_RESIZE_INO);
+ inode = iget(sb, EXT4_RESIZE_INO);
if (!inode || is_bad_inode(inode)) {
- ext3_warning(sb, __FUNCTION__,
+ ext4_warning(sb, __FUNCTION__,
"Error opening resize inode");
iput(inode);
return -ENOENT;
* are adding a group with superblock/GDT backups we will also
* modify each of the reserved GDT dindirect blocks.
*/
- handle = ext3_journal_start_sb(sb,
- ext3_bg_has_super(sb, input->group) ?
+ handle = ext4_journal_start_sb(sb,
+ ext4_bg_has_super(sb, input->group) ?
3 + reserved_gdb : 4);
if (IS_ERR(handle)) {
err = PTR_ERR(handle);
lock_super(sb);
if (input->group != sbi->s_groups_count) {
- ext3_warning(sb, __FUNCTION__,
+ ext4_warning(sb, __FUNCTION__,
"multiple resizers run on filesystem!");
err = -EBUSY;
goto exit_journal;
}
- if ((err = ext3_journal_get_write_access(handle, sbi->s_sbh)))
+ if ((err = ext4_journal_get_write_access(handle, sbi->s_sbh)))
goto exit_journal;
/*
*/
if (gdb_off) {
primary = sbi->s_group_desc[gdb_num];
- if ((err = ext3_journal_get_write_access(handle, primary)))
+ if ((err = ext4_journal_get_write_access(handle, primary)))
goto exit_journal;
- if (reserved_gdb && ext3_bg_num_gdb(sb, input->group) &&
+ if (reserved_gdb && ext4_bg_num_gdb(sb, input->group) &&
(err = reserve_backup_gdb(handle, inode, input)))
goto exit_journal;
} else if ((err = add_new_gdb(handle, inode, input, &primary)))
*/
/* Update group descriptor block for new group */
- gdp = (struct ext3_group_desc *)primary->b_data + gdb_off;
+ gdp = (struct ext4_group_desc *)primary->b_data + gdb_off;
gdp->bg_block_bitmap = cpu_to_le32(input->block_bitmap);
gdp->bg_inode_bitmap = cpu_to_le32(input->inode_bitmap);
gdp->bg_inode_table = cpu_to_le32(input->inode_table);
gdp->bg_free_blocks_count = cpu_to_le16(input->free_blocks_count);
- gdp->bg_free_inodes_count = cpu_to_le16(EXT3_INODES_PER_GROUP(sb));
+ gdp->bg_free_inodes_count = cpu_to_le16(EXT4_INODES_PER_GROUP(sb));
/*
* Make the new blocks and inodes valid next. We do this before
es->s_blocks_count = cpu_to_le32(le32_to_cpu(es->s_blocks_count) +
input->blocks_count);
es->s_inodes_count = cpu_to_le32(le32_to_cpu(es->s_inodes_count) +
- EXT3_INODES_PER_GROUP(sb));
+ EXT4_INODES_PER_GROUP(sb));
/*
* We need to protect s_groups_count against other CPUs seeing
/* Update the global fs size fields */
sbi->s_groups_count++;
- ext3_journal_dirty_metadata(handle, primary);
+ ext4_journal_dirty_metadata(handle, primary);
/* Update the reserved block counts only once the new group is
* active. */
percpu_counter_mod(&sbi->s_freeblocks_counter,
input->free_blocks_count);
percpu_counter_mod(&sbi->s_freeinodes_counter,
- EXT3_INODES_PER_GROUP(sb));
+ EXT4_INODES_PER_GROUP(sb));
- ext3_journal_dirty_metadata(handle, sbi->s_sbh);
+ ext4_journal_dirty_metadata(handle, sbi->s_sbh);
sb->s_dirt = 1;
exit_journal:
unlock_super(sb);
- if ((err2 = ext3_journal_stop(handle)) && !err)
+ if ((err2 = ext4_journal_stop(handle)) && !err)
err = err2;
if (!err) {
update_backups(sb, sbi->s_sbh->b_blocknr, (char *)es,
- sizeof(struct ext3_super_block));
+ sizeof(struct ext4_super_block));
update_backups(sb, primary->b_blocknr, primary->b_data,
primary->b_size);
}
exit_put:
iput(inode);
return err;
-} /* ext3_group_add */
+} /* ext4_group_add */
/* Extend the filesystem to the new number of blocks specified. This entry
* point is only used to extend the current filesystem to the end of the last
* existing group. It can be accessed via ioctl, or by "remount,resize=<size>"
* for emergencies (because it has no dependencies on reserved blocks).
*
- * If we _really_ wanted, we could use default values to call ext3_group_add()
+ * If we _really_ wanted, we could use default values to call ext4_group_add()
* allow the "remount" trick to work for arbitrary resizing, assuming enough
* GDT blocks are reserved to grow to the desired size.
*/
-int ext3_group_extend(struct super_block *sb, struct ext3_super_block *es,
- ext3_fsblk_t n_blocks_count)
+int ext4_group_extend(struct super_block *sb, struct ext4_super_block *es,
+ ext4_fsblk_t n_blocks_count)
{
- ext3_fsblk_t o_blocks_count;
+ ext4_fsblk_t o_blocks_count;
unsigned long o_groups_count;
- ext3_grpblk_t last;
- ext3_grpblk_t add;
+ ext4_grpblk_t last;
+ ext4_grpblk_t add;
struct buffer_head * bh;
handle_t *handle;
int err;
* yet: we're going to revalidate es->s_blocks_count after
* taking lock_super() below. */
o_blocks_count = le32_to_cpu(es->s_blocks_count);
- o_groups_count = EXT3_SB(sb)->s_groups_count;
+ o_groups_count = EXT4_SB(sb)->s_groups_count;
if (test_opt(sb, DEBUG))
- printk(KERN_DEBUG "EXT3-fs: extending last group from "E3FSBLK" uto "E3FSBLK" blocks\n",
+ printk(KERN_DEBUG "EXT4-fs: extending last group from "E3FSBLK" uto "E3FSBLK" blocks\n",
o_blocks_count, n_blocks_count);
if (n_blocks_count == 0 || n_blocks_count == o_blocks_count)
return 0;
if (n_blocks_count > (sector_t)(~0ULL) >> (sb->s_blocksize_bits - 9)) {
- printk(KERN_ERR "EXT3-fs: filesystem on %s:"
+ printk(KERN_ERR "EXT4-fs: filesystem on %s:"
" too large to resize to %lu blocks safely\n",
sb->s_id, n_blocks_count);
if (sizeof(sector_t) < 8)
- ext3_warning(sb, __FUNCTION__,
+ ext4_warning(sb, __FUNCTION__,
"CONFIG_LBD not enabled\n");
return -EINVAL;
}
if (n_blocks_count < o_blocks_count) {
- ext3_warning(sb, __FUNCTION__,
+ ext4_warning(sb, __FUNCTION__,
"can't shrink FS - resize aborted");
return -EBUSY;
}
/* Handle the remaining blocks in the last group only. */
last = (o_blocks_count - le32_to_cpu(es->s_first_data_block)) %
- EXT3_BLOCKS_PER_GROUP(sb);
+ EXT4_BLOCKS_PER_GROUP(sb);
if (last == 0) {
- ext3_warning(sb, __FUNCTION__,
+ ext4_warning(sb, __FUNCTION__,
"need to use ext2online to resize further");
return -EPERM;
}
- add = EXT3_BLOCKS_PER_GROUP(sb) - last;
+ add = EXT4_BLOCKS_PER_GROUP(sb) - last;
if (o_blocks_count + add < o_blocks_count) {
- ext3_warning(sb, __FUNCTION__, "blocks_count overflow");
+ ext4_warning(sb, __FUNCTION__, "blocks_count overflow");
return -EINVAL;
}
add = n_blocks_count - o_blocks_count;
if (o_blocks_count + add < n_blocks_count)
- ext3_warning(sb, __FUNCTION__,
+ ext4_warning(sb, __FUNCTION__,
"will only finish group ("E3FSBLK
" blocks, %u new)",
o_blocks_count + add, add);
/* See if the device is actually as big as what was requested */
bh = sb_bread(sb, o_blocks_count + add -1);
if (!bh) {
- ext3_warning(sb, __FUNCTION__,
+ ext4_warning(sb, __FUNCTION__,
"can't read last block, resize aborted");
return -ENOSPC;
}
brelse(bh);
/* We will update the superblock, one block bitmap, and
- * one group descriptor via ext3_free_blocks().
+ * one group descriptor via ext4_free_blocks().
*/
- handle = ext3_journal_start_sb(sb, 3);
+ handle = ext4_journal_start_sb(sb, 3);
if (IS_ERR(handle)) {
err = PTR_ERR(handle);
- ext3_warning(sb, __FUNCTION__, "error %d on journal start",err);
+ ext4_warning(sb, __FUNCTION__, "error %d on journal start",err);
goto exit_put;
}
lock_super(sb);
if (o_blocks_count != le32_to_cpu(es->s_blocks_count)) {
- ext3_warning(sb, __FUNCTION__,
+ ext4_warning(sb, __FUNCTION__,
"multiple resizers run on filesystem!");
unlock_super(sb);
err = -EBUSY;
goto exit_put;
}
- if ((err = ext3_journal_get_write_access(handle,
- EXT3_SB(sb)->s_sbh))) {
- ext3_warning(sb, __FUNCTION__,
+ if ((err = ext4_journal_get_write_access(handle,
+ EXT4_SB(sb)->s_sbh))) {
+ ext4_warning(sb, __FUNCTION__,
"error %d on journal write access", err);
unlock_super(sb);
- ext3_journal_stop(handle);
+ ext4_journal_stop(handle);
goto exit_put;
}
es->s_blocks_count = cpu_to_le32(o_blocks_count + add);
- ext3_journal_dirty_metadata(handle, EXT3_SB(sb)->s_sbh);
+ ext4_journal_dirty_metadata(handle, EXT4_SB(sb)->s_sbh);
sb->s_dirt = 1;
unlock_super(sb);
- ext3_debug("freeing blocks %lu through "E3FSBLK"\n", o_blocks_count,
+ ext4_debug("freeing blocks %lu through "E3FSBLK"\n", o_blocks_count,
o_blocks_count + add);
- ext3_free_blocks_sb(handle, sb, o_blocks_count, add, &freed_blocks);
- ext3_debug("freed blocks "E3FSBLK" through "E3FSBLK"\n", o_blocks_count,
+ ext4_free_blocks_sb(handle, sb, o_blocks_count, add, &freed_blocks);
+ ext4_debug("freed blocks "E3FSBLK" through "E3FSBLK"\n", o_blocks_count,
o_blocks_count + add);
- if ((err = ext3_journal_stop(handle)))
+ if ((err = ext4_journal_stop(handle)))
goto exit_put;
if (test_opt(sb, DEBUG))
- printk(KERN_DEBUG "EXT3-fs: extended group to %u blocks\n",
+ printk(KERN_DEBUG "EXT4-fs: extended group to %u blocks\n",
le32_to_cpu(es->s_blocks_count));
- update_backups(sb, EXT3_SB(sb)->s_sbh->b_blocknr, (char *)es,
- sizeof(struct ext3_super_block));
+ update_backups(sb, EXT4_SB(sb)->s_sbh->b_blocknr, (char *)es,
+ sizeof(struct ext4_super_block));
exit_put:
return err;
-} /* ext3_group_extend */
+} /* ext4_group_extend */
/*
- * linux/fs/ext3/super.c
+ * linux/fs/ext4/super.c
*
* Copyright (C) 1992, 1993, 1994, 1995
* Remy Card (card@masi.ibp.fr)
#include <linux/fs.h>
#include <linux/time.h>
#include <linux/jbd.h>
-#include <linux/ext3_fs.h>
-#include <linux/ext3_jbd.h>
+#include <linux/ext4_fs.h>
+#include <linux/ext4_jbd.h>
#include <linux/slab.h>
#include <linux/init.h>
#include <linux/blkdev.h>
#include "acl.h"
#include "namei.h"
-static int ext3_load_journal(struct super_block *, struct ext3_super_block *,
+static int ext4_load_journal(struct super_block *, struct ext4_super_block *,
unsigned long journal_devnum);
-static int ext3_create_journal(struct super_block *, struct ext3_super_block *,
+static int ext4_create_journal(struct super_block *, struct ext4_super_block *,
unsigned int);
-static void ext3_commit_super (struct super_block * sb,
- struct ext3_super_block * es,
+static void ext4_commit_super (struct super_block * sb,
+ struct ext4_super_block * es,
int sync);
-static void ext3_mark_recovery_complete(struct super_block * sb,
- struct ext3_super_block * es);
-static void ext3_clear_journal_err(struct super_block * sb,
- struct ext3_super_block * es);
-static int ext3_sync_fs(struct super_block *sb, int wait);
-static const char *ext3_decode_error(struct super_block * sb, int errno,
+static void ext4_mark_recovery_complete(struct super_block * sb,
+ struct ext4_super_block * es);
+static void ext4_clear_journal_err(struct super_block * sb,
+ struct ext4_super_block * es);
+static int ext4_sync_fs(struct super_block *sb, int wait);
+static const char *ext4_decode_error(struct super_block * sb, int errno,
char nbuf[16]);
-static int ext3_remount (struct super_block * sb, int * flags, char * data);
-static int ext3_statfs (struct dentry * dentry, struct kstatfs * buf);
-static void ext3_unlockfs(struct super_block *sb);
-static void ext3_write_super (struct super_block * sb);
-static void ext3_write_super_lockfs(struct super_block *sb);
+static int ext4_remount (struct super_block * sb, int * flags, char * data);
+static int ext4_statfs (struct dentry * dentry, struct kstatfs * buf);
+static void ext4_unlockfs(struct super_block *sb);
+static void ext4_write_super (struct super_block * sb);
+static void ext4_write_super_lockfs(struct super_block *sb);
/*
* Wrappers for journal_start/end.
* that sync() will call the filesystem's write_super callback if
* appropriate.
*/
-handle_t *ext3_journal_start_sb(struct super_block *sb, int nblocks)
+handle_t *ext4_journal_start_sb(struct super_block *sb, int nblocks)
{
journal_t *journal;
/* Special case here: if the journal has aborted behind our
* backs (eg. EIO in the commit thread), then we still need to
* take the FS itself readonly cleanly. */
- journal = EXT3_SB(sb)->s_journal;
+ journal = EXT4_SB(sb)->s_journal;
if (is_journal_aborted(journal)) {
- ext3_abort(sb, __FUNCTION__,
+ ext4_abort(sb, __FUNCTION__,
"Detected aborted journal");
return ERR_PTR(-EROFS);
}
* that sync() will call the filesystem's write_super callback if
* appropriate.
*/
-int __ext3_journal_stop(const char *where, handle_t *handle)
+int __ext4_journal_stop(const char *where, handle_t *handle)
{
struct super_block *sb;
int err;
if (!err)
err = rc;
if (err)
- __ext3_std_error(sb, where, err);
+ __ext4_std_error(sb, where, err);
return err;
}
-void ext3_journal_abort_handle(const char *caller, const char *err_fn,
+void ext4_journal_abort_handle(const char *caller, const char *err_fn,
struct buffer_head *bh, handle_t *handle, int err)
{
char nbuf[16];
- const char *errstr = ext3_decode_error(NULL, err, nbuf);
+ const char *errstr = ext4_decode_error(NULL, err, nbuf);
if (bh)
BUFFER_TRACE(bh, "abort");
* inconsistencies detected or read IO failures.
*
* On ext2, we can store the error state of the filesystem in the
- * superblock. That is not possible on ext3, because we may have other
+ * superblock. That is not possible on ext4, because we may have other
* write ordering constraints on the superblock which prevent us from
* writing it out straight away; and given that the journal is about to
* be aborted, we can't rely on the current, or future, transactions to
* that error until we've noted it down and cleared it.
*/
-static void ext3_handle_error(struct super_block *sb)
+static void ext4_handle_error(struct super_block *sb)
{
- struct ext3_super_block *es = EXT3_SB(sb)->s_es;
+ struct ext4_super_block *es = EXT4_SB(sb)->s_es;
- EXT3_SB(sb)->s_mount_state |= EXT3_ERROR_FS;
- es->s_state |= cpu_to_le16(EXT3_ERROR_FS);
+ EXT4_SB(sb)->s_mount_state |= EXT4_ERROR_FS;
+ es->s_state |= cpu_to_le16(EXT4_ERROR_FS);
if (sb->s_flags & MS_RDONLY)
return;
if (!test_opt (sb, ERRORS_CONT)) {
- journal_t *journal = EXT3_SB(sb)->s_journal;
+ journal_t *journal = EXT4_SB(sb)->s_journal;
- EXT3_SB(sb)->s_mount_opt |= EXT3_MOUNT_ABORT;
+ EXT4_SB(sb)->s_mount_opt |= EXT4_MOUNT_ABORT;
if (journal)
journal_abort(journal, -EIO);
}
printk (KERN_CRIT "Remounting filesystem read-only\n");
sb->s_flags |= MS_RDONLY;
}
- ext3_commit_super(sb, es, 1);
+ ext4_commit_super(sb, es, 1);
if (test_opt(sb, ERRORS_PANIC))
- panic("EXT3-fs (device %s): panic forced after error\n",
+ panic("EXT4-fs (device %s): panic forced after error\n",
sb->s_id);
}
-void ext3_error (struct super_block * sb, const char * function,
+void ext4_error (struct super_block * sb, const char * function,
const char * fmt, ...)
{
va_list args;
va_start(args, fmt);
- printk(KERN_CRIT "EXT3-fs error (device %s): %s: ",sb->s_id, function);
+ printk(KERN_CRIT "EXT4-fs error (device %s): %s: ",sb->s_id, function);
vprintk(fmt, args);
printk("\n");
va_end(args);
- ext3_handle_error(sb);
+ ext4_handle_error(sb);
}
-static const char *ext3_decode_error(struct super_block * sb, int errno,
+static const char *ext4_decode_error(struct super_block * sb, int errno,
char nbuf[16])
{
char *errstr = NULL;
errstr = "Out of memory";
break;
case -EROFS:
- if (!sb || EXT3_SB(sb)->s_journal->j_flags & JFS_ABORT)
+ if (!sb || EXT4_SB(sb)->s_journal->j_flags & JFS_ABORT)
errstr = "Journal has aborted";
else
errstr = "Readonly filesystem";
return errstr;
}
-/* __ext3_std_error decodes expected errors from journaling functions
+/* __ext4_std_error decodes expected errors from journaling functions
* automatically and invokes the appropriate error response. */
-void __ext3_std_error (struct super_block * sb, const char * function,
+void __ext4_std_error (struct super_block * sb, const char * function,
int errno)
{
char nbuf[16];
(sb->s_flags & MS_RDONLY))
return;
- errstr = ext3_decode_error(sb, errno, nbuf);
- printk (KERN_CRIT "EXT3-fs error (device %s) in %s: %s\n",
+ errstr = ext4_decode_error(sb, errno, nbuf);
+ printk (KERN_CRIT "EXT4-fs error (device %s) in %s: %s\n",
sb->s_id, function, errstr);
- ext3_handle_error(sb);
+ ext4_handle_error(sb);
}
/*
- * ext3_abort is a much stronger failure handler than ext3_error. The
+ * ext4_abort is a much stronger failure handler than ext4_error. The
* abort function may be used to deal with unrecoverable failures such
* as journal IO errors or ENOMEM at a critical moment in log management.
*
* case we take the easy way out and panic immediately.
*/
-void ext3_abort (struct super_block * sb, const char * function,
+void ext4_abort (struct super_block * sb, const char * function,
const char * fmt, ...)
{
va_list args;
- printk (KERN_CRIT "ext3_abort called.\n");
+ printk (KERN_CRIT "ext4_abort called.\n");
va_start(args, fmt);
- printk(KERN_CRIT "EXT3-fs error (device %s): %s: ",sb->s_id, function);
+ printk(KERN_CRIT "EXT4-fs error (device %s): %s: ",sb->s_id, function);
vprintk(fmt, args);
printk("\n");
va_end(args);
if (test_opt(sb, ERRORS_PANIC))
- panic("EXT3-fs panic from previous error\n");
+ panic("EXT4-fs panic from previous error\n");
if (sb->s_flags & MS_RDONLY)
return;
printk(KERN_CRIT "Remounting filesystem read-only\n");
- EXT3_SB(sb)->s_mount_state |= EXT3_ERROR_FS;
+ EXT4_SB(sb)->s_mount_state |= EXT4_ERROR_FS;
sb->s_flags |= MS_RDONLY;
- EXT3_SB(sb)->s_mount_opt |= EXT3_MOUNT_ABORT;
- journal_abort(EXT3_SB(sb)->s_journal, -EIO);
+ EXT4_SB(sb)->s_mount_opt |= EXT4_MOUNT_ABORT;
+ journal_abort(EXT4_SB(sb)->s_journal, -EIO);
}
-void ext3_warning (struct super_block * sb, const char * function,
+void ext4_warning (struct super_block * sb, const char * function,
const char * fmt, ...)
{
va_list args;
va_start(args, fmt);
- printk(KERN_WARNING "EXT3-fs warning (device %s): %s: ",
+ printk(KERN_WARNING "EXT4-fs warning (device %s): %s: ",
sb->s_id, function);
vprintk(fmt, args);
printk("\n");
va_end(args);
}
-void ext3_update_dynamic_rev(struct super_block *sb)
+void ext4_update_dynamic_rev(struct super_block *sb)
{
- struct ext3_super_block *es = EXT3_SB(sb)->s_es;
+ struct ext4_super_block *es = EXT4_SB(sb)->s_es;
- if (le32_to_cpu(es->s_rev_level) > EXT3_GOOD_OLD_REV)
+ if (le32_to_cpu(es->s_rev_level) > EXT4_GOOD_OLD_REV)
return;
- ext3_warning(sb, __FUNCTION__,
+ ext4_warning(sb, __FUNCTION__,
"updating to rev %d because of new feature flag, "
"running e2fsck is recommended",
- EXT3_DYNAMIC_REV);
+ EXT4_DYNAMIC_REV);
- es->s_first_ino = cpu_to_le32(EXT3_GOOD_OLD_FIRST_INO);
- es->s_inode_size = cpu_to_le16(EXT3_GOOD_OLD_INODE_SIZE);
- es->s_rev_level = cpu_to_le32(EXT3_DYNAMIC_REV);
+ es->s_first_ino = cpu_to_le32(EXT4_GOOD_OLD_FIRST_INO);
+ es->s_inode_size = cpu_to_le16(EXT4_GOOD_OLD_INODE_SIZE);
+ es->s_rev_level = cpu_to_le32(EXT4_DYNAMIC_REV);
/* leave es->s_feature_*compat flags alone */
/* es->s_uuid will be set by e2fsck if empty */
/*
* Open the external journal device
*/
-static struct block_device *ext3_blkdev_get(dev_t dev)
+static struct block_device *ext4_blkdev_get(dev_t dev)
{
struct block_device *bdev;
char b[BDEVNAME_SIZE];
return bdev;
fail:
- printk(KERN_ERR "EXT3: failed to open journal device %s: %ld\n",
+ printk(KERN_ERR "EXT4: failed to open journal device %s: %ld\n",
__bdevname(dev, b), PTR_ERR(bdev));
return NULL;
}
/*
* Release the journal device
*/
-static int ext3_blkdev_put(struct block_device *bdev)
+static int ext4_blkdev_put(struct block_device *bdev)
{
bd_release(bdev);
return blkdev_put(bdev);
}
-static int ext3_blkdev_remove(struct ext3_sb_info *sbi)
+static int ext4_blkdev_remove(struct ext4_sb_info *sbi)
{
struct block_device *bdev;
int ret = -ENODEV;
bdev = sbi->journal_bdev;
if (bdev) {
- ret = ext3_blkdev_put(bdev);
+ ret = ext4_blkdev_put(bdev);
sbi->journal_bdev = NULL;
}
return ret;
static inline struct inode *orphan_list_entry(struct list_head *l)
{
- return &list_entry(l, struct ext3_inode_info, i_orphan)->vfs_inode;
+ return &list_entry(l, struct ext4_inode_info, i_orphan)->vfs_inode;
}
-static void dump_orphan_list(struct super_block *sb, struct ext3_sb_info *sbi)
+static void dump_orphan_list(struct super_block *sb, struct ext4_sb_info *sbi)
{
struct list_head *l;
}
}
-static void ext3_put_super (struct super_block * sb)
+static void ext4_put_super (struct super_block * sb)
{
- struct ext3_sb_info *sbi = EXT3_SB(sb);
- struct ext3_super_block *es = sbi->s_es;
+ struct ext4_sb_info *sbi = EXT4_SB(sb);
+ struct ext4_super_block *es = sbi->s_es;
int i;
- ext3_xattr_put_super(sb);
+ ext4_xattr_put_super(sb);
journal_destroy(sbi->s_journal);
if (!(sb->s_flags & MS_RDONLY)) {
- EXT3_CLEAR_INCOMPAT_FEATURE(sb, EXT3_FEATURE_INCOMPAT_RECOVER);
+ EXT4_CLEAR_INCOMPAT_FEATURE(sb, EXT4_FEATURE_INCOMPAT_RECOVER);
es->s_state = cpu_to_le16(sbi->s_mount_state);
BUFFER_TRACE(sbi->s_sbh, "marking dirty");
mark_buffer_dirty(sbi->s_sbh);
- ext3_commit_super(sb, es, 1);
+ ext4_commit_super(sb, es, 1);
}
for (i = 0; i < sbi->s_gdb_count; i++)
*/
sync_blockdev(sbi->journal_bdev);
invalidate_bdev(sbi->journal_bdev, 0);
- ext3_blkdev_remove(sbi);
+ ext4_blkdev_remove(sbi);
}
sb->s_fs_info = NULL;
kfree(sbi);
return;
}
-static kmem_cache_t *ext3_inode_cachep;
+static kmem_cache_t *ext4_inode_cachep;
/*
* Called inside transaction, so use GFP_NOFS
*/
-static struct inode *ext3_alloc_inode(struct super_block *sb)
+static struct inode *ext4_alloc_inode(struct super_block *sb)
{
- struct ext3_inode_info *ei;
+ struct ext4_inode_info *ei;
- ei = kmem_cache_alloc(ext3_inode_cachep, SLAB_NOFS);
+ ei = kmem_cache_alloc(ext4_inode_cachep, SLAB_NOFS);
if (!ei)
return NULL;
-#ifdef CONFIG_EXT3_FS_POSIX_ACL
- ei->i_acl = EXT3_ACL_NOT_CACHED;
- ei->i_default_acl = EXT3_ACL_NOT_CACHED;
+#ifdef CONFIG_EXT4DEV_FS_POSIX_ACL
+ ei->i_acl = EXT4_ACL_NOT_CACHED;
+ ei->i_default_acl = EXT4_ACL_NOT_CACHED;
#endif
ei->i_block_alloc_info = NULL;
ei->vfs_inode.i_version = 1;
return &ei->vfs_inode;
}
-static void ext3_destroy_inode(struct inode *inode)
+static void ext4_destroy_inode(struct inode *inode)
{
- kmem_cache_free(ext3_inode_cachep, EXT3_I(inode));
+ kmem_cache_free(ext4_inode_cachep, EXT4_I(inode));
}
static void init_once(void * foo, kmem_cache_t * cachep, unsigned long flags)
{
- struct ext3_inode_info *ei = (struct ext3_inode_info *) foo;
+ struct ext4_inode_info *ei = (struct ext4_inode_info *) foo;
if ((flags & (SLAB_CTOR_VERIFY|SLAB_CTOR_CONSTRUCTOR)) ==
SLAB_CTOR_CONSTRUCTOR) {
INIT_LIST_HEAD(&ei->i_orphan);
-#ifdef CONFIG_EXT3_FS_XATTR
+#ifdef CONFIG_EXT4DEV_FS_XATTR
init_rwsem(&ei->xattr_sem);
#endif
mutex_init(&ei->truncate_mutex);
static int init_inodecache(void)
{
- ext3_inode_cachep = kmem_cache_create("ext3_inode_cache",
- sizeof(struct ext3_inode_info),
+ ext4_inode_cachep = kmem_cache_create("ext4_inode_cache",
+ sizeof(struct ext4_inode_info),
0, (SLAB_RECLAIM_ACCOUNT|
SLAB_MEM_SPREAD),
init_once, NULL);
- if (ext3_inode_cachep == NULL)
+ if (ext4_inode_cachep == NULL)
return -ENOMEM;
return 0;
}
static void destroy_inodecache(void)
{
- kmem_cache_destroy(ext3_inode_cachep);
+ kmem_cache_destroy(ext4_inode_cachep);
}
-static void ext3_clear_inode(struct inode *inode)
+static void ext4_clear_inode(struct inode *inode)
{
- struct ext3_block_alloc_info *rsv = EXT3_I(inode)->i_block_alloc_info;
-#ifdef CONFIG_EXT3_FS_POSIX_ACL
- if (EXT3_I(inode)->i_acl &&
- EXT3_I(inode)->i_acl != EXT3_ACL_NOT_CACHED) {
- posix_acl_release(EXT3_I(inode)->i_acl);
- EXT3_I(inode)->i_acl = EXT3_ACL_NOT_CACHED;
- }
- if (EXT3_I(inode)->i_default_acl &&
- EXT3_I(inode)->i_default_acl != EXT3_ACL_NOT_CACHED) {
- posix_acl_release(EXT3_I(inode)->i_default_acl);
- EXT3_I(inode)->i_default_acl = EXT3_ACL_NOT_CACHED;
+ struct ext4_block_alloc_info *rsv = EXT4_I(inode)->i_block_alloc_info;
+#ifdef CONFIG_EXT4DEV_FS_POSIX_ACL
+ if (EXT4_I(inode)->i_acl &&
+ EXT4_I(inode)->i_acl != EXT4_ACL_NOT_CACHED) {
+ posix_acl_release(EXT4_I(inode)->i_acl);
+ EXT4_I(inode)->i_acl = EXT4_ACL_NOT_CACHED;
+ }
+ if (EXT4_I(inode)->i_default_acl &&
+ EXT4_I(inode)->i_default_acl != EXT4_ACL_NOT_CACHED) {
+ posix_acl_release(EXT4_I(inode)->i_default_acl);
+ EXT4_I(inode)->i_default_acl = EXT4_ACL_NOT_CACHED;
}
#endif
- ext3_discard_reservation(inode);
- EXT3_I(inode)->i_block_alloc_info = NULL;
+ ext4_discard_reservation(inode);
+ EXT4_I(inode)->i_block_alloc_info = NULL;
if (unlikely(rsv))
kfree(rsv);
}
-static inline void ext3_show_quota_options(struct seq_file *seq, struct super_block *sb)
+static inline void ext4_show_quota_options(struct seq_file *seq, struct super_block *sb)
{
#if defined(CONFIG_QUOTA)
- struct ext3_sb_info *sbi = EXT3_SB(sb);
+ struct ext4_sb_info *sbi = EXT4_SB(sb);
if (sbi->s_jquota_fmt)
seq_printf(seq, ",jqfmt=%s",
if (sbi->s_qf_names[GRPQUOTA])
seq_printf(seq, ",grpjquota=%s", sbi->s_qf_names[GRPQUOTA]);
- if (sbi->s_mount_opt & EXT3_MOUNT_USRQUOTA)
+ if (sbi->s_mount_opt & EXT4_MOUNT_USRQUOTA)
seq_puts(seq, ",usrquota");
- if (sbi->s_mount_opt & EXT3_MOUNT_GRPQUOTA)
+ if (sbi->s_mount_opt & EXT4_MOUNT_GRPQUOTA)
seq_puts(seq, ",grpquota");
#endif
}
-static int ext3_show_options(struct seq_file *seq, struct vfsmount *vfs)
+static int ext4_show_options(struct seq_file *seq, struct vfsmount *vfs)
{
struct super_block *sb = vfs->mnt_sb;
- if (test_opt(sb, DATA_FLAGS) == EXT3_MOUNT_JOURNAL_DATA)
+ if (test_opt(sb, DATA_FLAGS) == EXT4_MOUNT_JOURNAL_DATA)
seq_puts(seq, ",data=journal");
- else if (test_opt(sb, DATA_FLAGS) == EXT3_MOUNT_ORDERED_DATA)
+ else if (test_opt(sb, DATA_FLAGS) == EXT4_MOUNT_ORDERED_DATA)
seq_puts(seq, ",data=ordered");
- else if (test_opt(sb, DATA_FLAGS) == EXT3_MOUNT_WRITEBACK_DATA)
+ else if (test_opt(sb, DATA_FLAGS) == EXT4_MOUNT_WRITEBACK_DATA)
seq_puts(seq, ",data=writeback");
- ext3_show_quota_options(seq, sb);
+ ext4_show_quota_options(seq, sb);
return 0;
}
-static struct dentry *ext3_get_dentry(struct super_block *sb, void *vobjp)
+static struct dentry *ext4_get_dentry(struct super_block *sb, void *vobjp)
{
__u32 *objp = vobjp;
unsigned long ino = objp[0];
struct inode *inode;
struct dentry *result;
- if (ino < EXT3_FIRST_INO(sb) && ino != EXT3_ROOT_INO)
+ if (ino < EXT4_FIRST_INO(sb) && ino != EXT4_ROOT_INO)
return ERR_PTR(-ESTALE);
- if (ino > le32_to_cpu(EXT3_SB(sb)->s_es->s_inodes_count))
+ if (ino > le32_to_cpu(EXT4_SB(sb)->s_es->s_inodes_count))
return ERR_PTR(-ESTALE);
/* iget isn't really right if the inode is currently unallocated!!
*
- * ext3_read_inode will return a bad_inode if the inode had been
+ * ext4_read_inode will return a bad_inode if the inode had been
* deleted, so we should be safe.
*
* Currently we don't know the generation for parent directory, so
#define QTYPE2NAME(t) ((t)==USRQUOTA?"user":"group")
#define QTYPE2MOPT(on, t) ((t)==USRQUOTA?((on)##USRJQUOTA):((on)##GRPJQUOTA))
-static int ext3_dquot_initialize(struct inode *inode, int type);
-static int ext3_dquot_drop(struct inode *inode);
-static int ext3_write_dquot(struct dquot *dquot);
-static int ext3_acquire_dquot(struct dquot *dquot);
-static int ext3_release_dquot(struct dquot *dquot);
-static int ext3_mark_dquot_dirty(struct dquot *dquot);
-static int ext3_write_info(struct super_block *sb, int type);
-static int ext3_quota_on(struct super_block *sb, int type, int format_id, char *path);
-static int ext3_quota_on_mount(struct super_block *sb, int type);
-static ssize_t ext3_quota_read(struct super_block *sb, int type, char *data,
+static int ext4_dquot_initialize(struct inode *inode, int type);
+static int ext4_dquot_drop(struct inode *inode);
+static int ext4_write_dquot(struct dquot *dquot);
+static int ext4_acquire_dquot(struct dquot *dquot);
+static int ext4_release_dquot(struct dquot *dquot);
+static int ext4_mark_dquot_dirty(struct dquot *dquot);
+static int ext4_write_info(struct super_block *sb, int type);
+static int ext4_quota_on(struct super_block *sb, int type, int format_id, char *path);
+static int ext4_quota_on_mount(struct super_block *sb, int type);
+static ssize_t ext4_quota_read(struct super_block *sb, int type, char *data,
size_t len, loff_t off);
-static ssize_t ext3_quota_write(struct super_block *sb, int type,
+static ssize_t ext4_quota_write(struct super_block *sb, int type,
const char *data, size_t len, loff_t off);
-static struct dquot_operations ext3_quota_operations = {
- .initialize = ext3_dquot_initialize,
- .drop = ext3_dquot_drop,
+static struct dquot_operations ext4_quota_operations = {
+ .initialize = ext4_dquot_initialize,
+ .drop = ext4_dquot_drop,
.alloc_space = dquot_alloc_space,
.alloc_inode = dquot_alloc_inode,
.free_space = dquot_free_space,
.free_inode = dquot_free_inode,
.transfer = dquot_transfer,
- .write_dquot = ext3_write_dquot,
- .acquire_dquot = ext3_acquire_dquot,
- .release_dquot = ext3_release_dquot,
- .mark_dirty = ext3_mark_dquot_dirty,
- .write_info = ext3_write_info
+ .write_dquot = ext4_write_dquot,
+ .acquire_dquot = ext4_acquire_dquot,
+ .release_dquot = ext4_release_dquot,
+ .mark_dirty = ext4_mark_dquot_dirty,
+ .write_info = ext4_write_info
};
-static struct quotactl_ops ext3_qctl_operations = {
- .quota_on = ext3_quota_on,
+static struct quotactl_ops ext4_qctl_operations = {
+ .quota_on = ext4_quota_on,
.quota_off = vfs_quota_off,
.quota_sync = vfs_quota_sync,
.get_info = vfs_get_dqinfo,
};
#endif
-static struct super_operations ext3_sops = {
- .alloc_inode = ext3_alloc_inode,
- .destroy_inode = ext3_destroy_inode,
- .read_inode = ext3_read_inode,
- .write_inode = ext3_write_inode,
- .dirty_inode = ext3_dirty_inode,
- .delete_inode = ext3_delete_inode,
- .put_super = ext3_put_super,
- .write_super = ext3_write_super,
- .sync_fs = ext3_sync_fs,
- .write_super_lockfs = ext3_write_super_lockfs,
- .unlockfs = ext3_unlockfs,
- .statfs = ext3_statfs,
- .remount_fs = ext3_remount,
- .clear_inode = ext3_clear_inode,
- .show_options = ext3_show_options,
+static struct super_operations ext4_sops = {
+ .alloc_inode = ext4_alloc_inode,
+ .destroy_inode = ext4_destroy_inode,
+ .read_inode = ext4_read_inode,
+ .write_inode = ext4_write_inode,
+ .dirty_inode = ext4_dirty_inode,
+ .delete_inode = ext4_delete_inode,
+ .put_super = ext4_put_super,
+ .write_super = ext4_write_super,
+ .sync_fs = ext4_sync_fs,
+ .write_super_lockfs = ext4_write_super_lockfs,
+ .unlockfs = ext4_unlockfs,
+ .statfs = ext4_statfs,
+ .remount_fs = ext4_remount,
+ .clear_inode = ext4_clear_inode,
+ .show_options = ext4_show_options,
#ifdef CONFIG_QUOTA
- .quota_read = ext3_quota_read,
- .quota_write = ext3_quota_write,
+ .quota_read = ext4_quota_read,
+ .quota_write = ext4_quota_write,
#endif
};
-static struct export_operations ext3_export_ops = {
- .get_parent = ext3_get_parent,
- .get_dentry = ext3_get_dentry,
+static struct export_operations ext4_export_ops = {
+ .get_parent = ext4_get_parent,
+ .get_dentry = ext4_get_dentry,
};
enum {
{Opt_resize, "resize"},
};
-static ext3_fsblk_t get_sb_block(void **data)
+static ext4_fsblk_t get_sb_block(void **data)
{
- ext3_fsblk_t sb_block;
+ ext4_fsblk_t sb_block;
char *options = (char *) *data;
if (!options || strncmp(options, "sb=", 3) != 0)
return 1; /* Default location */
options += 3;
- /*todo: use simple_strtoll with >32bit ext3 */
+ /*todo: use simple_strtoll with >32bit ext4 */
sb_block = simple_strtoul(options, &options, 0);
if (*options && *options != ',') {
- printk("EXT3-fs: Invalid sb specification: %s\n",
+ printk("EXT4-fs: Invalid sb specification: %s\n",
(char *) *data);
return 1;
}
static int parse_options (char *options, struct super_block *sb,
unsigned int *inum, unsigned long *journal_devnum,
- ext3_fsblk_t *n_blocks_count, int is_remount)
+ ext4_fsblk_t *n_blocks_count, int is_remount)
{
- struct ext3_sb_info *sbi = EXT3_SB(sb);
+ struct ext4_sb_info *sbi = EXT4_SB(sb);
char * p;
substring_t args[MAX_OPT_ARGS];
int data_opt = 0;
case Opt_orlov:
clear_opt (sbi->s_mount_opt, OLDALLOC);
break;
-#ifdef CONFIG_EXT3_FS_XATTR
+#ifdef CONFIG_EXT4DEV_FS_XATTR
case Opt_user_xattr:
set_opt (sbi->s_mount_opt, XATTR_USER);
break;
#else
case Opt_user_xattr:
case Opt_nouser_xattr:
- printk("EXT3 (no)user_xattr options not supported\n");
+ printk("EXT4 (no)user_xattr options not supported\n");
break;
#endif
-#ifdef CONFIG_EXT3_FS_POSIX_ACL
+#ifdef CONFIG_EXT4DEV_FS_POSIX_ACL
case Opt_acl:
set_opt(sbi->s_mount_opt, POSIX_ACL);
break;
#else
case Opt_acl:
case Opt_noacl:
- printk("EXT3 (no)acl options not supported\n");
+ printk("EXT4 (no)acl options not supported\n");
break;
#endif
case Opt_reservation:
user to specify an existing inode to be the
journal file. */
if (is_remount) {
- printk(KERN_ERR "EXT3-fs: cannot specify "
+ printk(KERN_ERR "EXT4-fs: cannot specify "
"journal on remount\n");
return 0;
}
break;
case Opt_journal_inum:
if (is_remount) {
- printk(KERN_ERR "EXT3-fs: cannot specify "
+ printk(KERN_ERR "EXT4-fs: cannot specify "
"journal on remount\n");
return 0;
}
break;
case Opt_journal_dev:
if (is_remount) {
- printk(KERN_ERR "EXT3-fs: cannot specify "
+ printk(KERN_ERR "EXT4-fs: cannot specify "
"journal on remount\n");
return 0;
}
sbi->s_commit_interval = HZ * option;
break;
case Opt_data_journal:
- data_opt = EXT3_MOUNT_JOURNAL_DATA;
+ data_opt = EXT4_MOUNT_JOURNAL_DATA;
goto datacheck;
case Opt_data_ordered:
- data_opt = EXT3_MOUNT_ORDERED_DATA;
+ data_opt = EXT4_MOUNT_ORDERED_DATA;
goto datacheck;
case Opt_data_writeback:
- data_opt = EXT3_MOUNT_WRITEBACK_DATA;
+ data_opt = EXT4_MOUNT_WRITEBACK_DATA;
datacheck:
if (is_remount) {
- if ((sbi->s_mount_opt & EXT3_MOUNT_DATA_FLAGS)
+ if ((sbi->s_mount_opt & EXT4_MOUNT_DATA_FLAGS)
!= data_opt) {
printk(KERN_ERR
- "EXT3-fs: cannot change data "
+ "EXT4-fs: cannot change data "
"mode on remount\n");
return 0;
}
} else {
- sbi->s_mount_opt &= ~EXT3_MOUNT_DATA_FLAGS;
+ sbi->s_mount_opt &= ~EXT4_MOUNT_DATA_FLAGS;
sbi->s_mount_opt |= data_opt;
}
break;
set_qf_name:
if (sb_any_quota_enabled(sb)) {
printk(KERN_ERR
- "EXT3-fs: Cannot change journalled "
+ "EXT4-fs: Cannot change journalled "
"quota options when quota turned on.\n");
return 0;
}
qname = match_strdup(&args[0]);
if (!qname) {
printk(KERN_ERR
- "EXT3-fs: not enough memory for "
+ "EXT4-fs: not enough memory for "
"storing quotafile name.\n");
return 0;
}
if (sbi->s_qf_names[qtype] &&
strcmp(sbi->s_qf_names[qtype], qname)) {
printk(KERN_ERR
- "EXT3-fs: %s quota file already "
+ "EXT4-fs: %s quota file already "
"specified.\n", QTYPE2NAME(qtype));
kfree(qname);
return 0;
sbi->s_qf_names[qtype] = qname;
if (strchr(sbi->s_qf_names[qtype], '/')) {
printk(KERN_ERR
- "EXT3-fs: quotafile must be on "
+ "EXT4-fs: quotafile must be on "
"filesystem root.\n");
kfree(sbi->s_qf_names[qtype]);
sbi->s_qf_names[qtype] = NULL;
qtype = GRPQUOTA;
clear_qf_name:
if (sb_any_quota_enabled(sb)) {
- printk(KERN_ERR "EXT3-fs: Cannot change "
+ printk(KERN_ERR "EXT4-fs: Cannot change "
"journalled quota options when "
"quota turned on.\n");
return 0;
break;
case Opt_noquota:
if (sb_any_quota_enabled(sb)) {
- printk(KERN_ERR "EXT3-fs: Cannot change quota "
+ printk(KERN_ERR "EXT4-fs: Cannot change quota "
"options when quota turned on.\n");
return 0;
}
case Opt_jqfmt_vfsold:
case Opt_jqfmt_vfsv0:
printk(KERN_ERR
- "EXT3-fs: journalled quota options not "
+ "EXT4-fs: journalled quota options not "
"supported.\n");
break;
case Opt_noquota:
break;
case Opt_resize:
if (!is_remount) {
- printk("EXT3-fs: resize option only available "
+ printk("EXT4-fs: resize option only available "
"for remount\n");
return 0;
}
break;
default:
printk (KERN_ERR
- "EXT3-fs: Unrecognized mount option \"%s\" "
+ "EXT4-fs: Unrecognized mount option \"%s\" "
"or missing value\n", p);
return 0;
}
}
#ifdef CONFIG_QUOTA
if (sbi->s_qf_names[USRQUOTA] || sbi->s_qf_names[GRPQUOTA]) {
- if ((sbi->s_mount_opt & EXT3_MOUNT_USRQUOTA) &&
+ if ((sbi->s_mount_opt & EXT4_MOUNT_USRQUOTA) &&
sbi->s_qf_names[USRQUOTA])
clear_opt(sbi->s_mount_opt, USRQUOTA);
- if ((sbi->s_mount_opt & EXT3_MOUNT_GRPQUOTA) &&
+ if ((sbi->s_mount_opt & EXT4_MOUNT_GRPQUOTA) &&
sbi->s_qf_names[GRPQUOTA])
clear_opt(sbi->s_mount_opt, GRPQUOTA);
if ((sbi->s_qf_names[USRQUOTA] &&
- (sbi->s_mount_opt & EXT3_MOUNT_GRPQUOTA)) ||
+ (sbi->s_mount_opt & EXT4_MOUNT_GRPQUOTA)) ||
(sbi->s_qf_names[GRPQUOTA] &&
- (sbi->s_mount_opt & EXT3_MOUNT_USRQUOTA))) {
- printk(KERN_ERR "EXT3-fs: old and new quota "
+ (sbi->s_mount_opt & EXT4_MOUNT_USRQUOTA))) {
+ printk(KERN_ERR "EXT4-fs: old and new quota "
"format mixing.\n");
return 0;
}
if (!sbi->s_jquota_fmt) {
- printk(KERN_ERR "EXT3-fs: journalled quota format "
+ printk(KERN_ERR "EXT4-fs: journalled quota format "
"not specified.\n");
return 0;
}
} else {
if (sbi->s_jquota_fmt) {
- printk(KERN_ERR "EXT3-fs: journalled quota format "
+ printk(KERN_ERR "EXT4-fs: journalled quota format "
"specified with no journalling "
"enabled.\n");
return 0;
return 1;
}
-static int ext3_setup_super(struct super_block *sb, struct ext3_super_block *es,
+static int ext4_setup_super(struct super_block *sb, struct ext4_super_block *es,
int read_only)
{
- struct ext3_sb_info *sbi = EXT3_SB(sb);
+ struct ext4_sb_info *sbi = EXT4_SB(sb);
int res = 0;
- if (le32_to_cpu(es->s_rev_level) > EXT3_MAX_SUPP_REV) {
- printk (KERN_ERR "EXT3-fs warning: revision level too high, "
+ if (le32_to_cpu(es->s_rev_level) > EXT4_MAX_SUPP_REV) {
+ printk (KERN_ERR "EXT4-fs warning: revision level too high, "
"forcing read-only mode\n");
res = MS_RDONLY;
}
if (read_only)
return res;
- if (!(sbi->s_mount_state & EXT3_VALID_FS))
- printk (KERN_WARNING "EXT3-fs warning: mounting unchecked fs, "
+ if (!(sbi->s_mount_state & EXT4_VALID_FS))
+ printk (KERN_WARNING "EXT4-fs warning: mounting unchecked fs, "
"running e2fsck is recommended\n");
- else if ((sbi->s_mount_state & EXT3_ERROR_FS))
+ else if ((sbi->s_mount_state & EXT4_ERROR_FS))
printk (KERN_WARNING
- "EXT3-fs warning: mounting fs with errors, "
+ "EXT4-fs warning: mounting fs with errors, "
"running e2fsck is recommended\n");
else if ((__s16) le16_to_cpu(es->s_max_mnt_count) >= 0 &&
le16_to_cpu(es->s_mnt_count) >=
(unsigned short) (__s16) le16_to_cpu(es->s_max_mnt_count))
printk (KERN_WARNING
- "EXT3-fs warning: maximal mount count reached, "
+ "EXT4-fs warning: maximal mount count reached, "
"running e2fsck is recommended\n");
else if (le32_to_cpu(es->s_checkinterval) &&
(le32_to_cpu(es->s_lastcheck) +
le32_to_cpu(es->s_checkinterval) <= get_seconds()))
printk (KERN_WARNING
- "EXT3-fs warning: checktime reached, "
+ "EXT4-fs warning: checktime reached, "
"running e2fsck is recommended\n");
#if 0
/* @@@ We _will_ want to clear the valid bit if we find
inconsistencies, to force a fsck at reboot. But for
a plain journaled filesystem we can keep it set as
valid forever! :) */
- es->s_state = cpu_to_le16(le16_to_cpu(es->s_state) & ~EXT3_VALID_FS);
+ es->s_state = cpu_to_le16(le16_to_cpu(es->s_state) & ~EXT4_VALID_FS);
#endif
if (!(__s16) le16_to_cpu(es->s_max_mnt_count))
- es->s_max_mnt_count = cpu_to_le16(EXT3_DFL_MAX_MNT_COUNT);
+ es->s_max_mnt_count = cpu_to_le16(EXT4_DFL_MAX_MNT_COUNT);
es->s_mnt_count=cpu_to_le16(le16_to_cpu(es->s_mnt_count) + 1);
es->s_mtime = cpu_to_le32(get_seconds());
- ext3_update_dynamic_rev(sb);
- EXT3_SET_INCOMPAT_FEATURE(sb, EXT3_FEATURE_INCOMPAT_RECOVER);
+ ext4_update_dynamic_rev(sb);
+ EXT4_SET_INCOMPAT_FEATURE(sb, EXT4_FEATURE_INCOMPAT_RECOVER);
- ext3_commit_super(sb, es, 1);
+ ext4_commit_super(sb, es, 1);
if (test_opt(sb, DEBUG))
- printk(KERN_INFO "[EXT3 FS bs=%lu, gc=%lu, "
+ printk(KERN_INFO "[EXT4 FS bs=%lu, gc=%lu, "
"bpg=%lu, ipg=%lu, mo=%04lx]\n",
sb->s_blocksize,
sbi->s_groups_count,
- EXT3_BLOCKS_PER_GROUP(sb),
- EXT3_INODES_PER_GROUP(sb),
+ EXT4_BLOCKS_PER_GROUP(sb),
+ EXT4_INODES_PER_GROUP(sb),
sbi->s_mount_opt);
- printk(KERN_INFO "EXT3 FS on %s, ", sb->s_id);
- if (EXT3_SB(sb)->s_journal->j_inode == NULL) {
+ printk(KERN_INFO "EXT4 FS on %s, ", sb->s_id);
+ if (EXT4_SB(sb)->s_journal->j_inode == NULL) {
char b[BDEVNAME_SIZE];
printk("external journal on %s\n",
- bdevname(EXT3_SB(sb)->s_journal->j_dev, b));
+ bdevname(EXT4_SB(sb)->s_journal->j_dev, b));
} else {
printk("internal journal\n");
}
}
/* Called at mount-time, super-block is locked */
-static int ext3_check_descriptors (struct super_block * sb)
+static int ext4_check_descriptors (struct super_block * sb)
{
- struct ext3_sb_info *sbi = EXT3_SB(sb);
- ext3_fsblk_t first_block = le32_to_cpu(sbi->s_es->s_first_data_block);
- ext3_fsblk_t last_block;
- struct ext3_group_desc * gdp = NULL;
+ struct ext4_sb_info *sbi = EXT4_SB(sb);
+ ext4_fsblk_t first_block = le32_to_cpu(sbi->s_es->s_first_data_block);
+ ext4_fsblk_t last_block;
+ struct ext4_group_desc * gdp = NULL;
int desc_block = 0;
int i;
- ext3_debug ("Checking group descriptors");
+ ext4_debug ("Checking group descriptors");
for (i = 0; i < sbi->s_groups_count; i++)
{
last_block = le32_to_cpu(sbi->s_es->s_blocks_count) - 1;
else
last_block = first_block +
- (EXT3_BLOCKS_PER_GROUP(sb) - 1);
+ (EXT4_BLOCKS_PER_GROUP(sb) - 1);
- if ((i % EXT3_DESC_PER_BLOCK(sb)) == 0)
- gdp = (struct ext3_group_desc *)
+ if ((i % EXT4_DESC_PER_BLOCK(sb)) == 0)
+ gdp = (struct ext4_group_desc *)
sbi->s_group_desc[desc_block++]->b_data;
if (le32_to_cpu(gdp->bg_block_bitmap) < first_block ||
le32_to_cpu(gdp->bg_block_bitmap) > last_block)
{
- ext3_error (sb, "ext3_check_descriptors",
+ ext4_error (sb, "ext4_check_descriptors",
"Block bitmap for group %d"
" not in group (block %lu)!",
i, (unsigned long)
if (le32_to_cpu(gdp->bg_inode_bitmap) < first_block ||
le32_to_cpu(gdp->bg_inode_bitmap) > last_block)
{
- ext3_error (sb, "ext3_check_descriptors",
+ ext4_error (sb, "ext4_check_descriptors",
"Inode bitmap for group %d"
" not in group (block %lu)!",
i, (unsigned long)
le32_to_cpu(gdp->bg_inode_table) + sbi->s_itb_per_group >
last_block)
{
- ext3_error (sb, "ext3_check_descriptors",
+ ext4_error (sb, "ext4_check_descriptors",
"Inode table for group %d"
" not in group (block %lu)!",
i, (unsigned long)
le32_to_cpu(gdp->bg_inode_table));
return 0;
}
- first_block += EXT3_BLOCKS_PER_GROUP(sb);
+ first_block += EXT4_BLOCKS_PER_GROUP(sb);
gdp++;
}
- sbi->s_es->s_free_blocks_count=cpu_to_le32(ext3_count_free_blocks(sb));
- sbi->s_es->s_free_inodes_count=cpu_to_le32(ext3_count_free_inodes(sb));
+ sbi->s_es->s_free_blocks_count=cpu_to_le32(ext4_count_free_blocks(sb));
+ sbi->s_es->s_free_inodes_count=cpu_to_le32(ext4_count_free_inodes(sb));
return 1;
}
-/* ext3_orphan_cleanup() walks a singly-linked list of inodes (starting at
+/* ext4_orphan_cleanup() walks a singly-linked list of inodes (starting at
* the superblock) which were deleted from all directories, but held open by
* a process at the time of a crash. We walk the list and try to delete these
* inodes at recovery time (only with a read-write filesystem).
* We only do an iget() and an iput() on each inode, which is very safe if we
* accidentally point at an in-use or already deleted inode. The worst that
* can happen in this case is that we get a "bit already cleared" message from
- * ext3_free_inode(). The only reason we would point at a wrong inode is if
+ * ext4_free_inode(). The only reason we would point at a wrong inode is if
* e2fsck was run on this filesystem, and it must have already done the orphan
* inode cleanup for us, so we can safely abort without any further action.
*/
-static void ext3_orphan_cleanup (struct super_block * sb,
- struct ext3_super_block * es)
+static void ext4_orphan_cleanup (struct super_block * sb,
+ struct ext4_super_block * es)
{
unsigned int s_flags = sb->s_flags;
int nr_orphans = 0, nr_truncates = 0;
return;
}
- if (EXT3_SB(sb)->s_mount_state & EXT3_ERROR_FS) {
+ if (EXT4_SB(sb)->s_mount_state & EXT4_ERROR_FS) {
if (es->s_last_orphan)
jbd_debug(1, "Errors on filesystem, "
"clearing orphan list.\n");
}
if (s_flags & MS_RDONLY) {
- printk(KERN_INFO "EXT3-fs: %s: orphan cleanup on readonly fs\n",
+ printk(KERN_INFO "EXT4-fs: %s: orphan cleanup on readonly fs\n",
sb->s_id);
sb->s_flags &= ~MS_RDONLY;
}
sb->s_flags |= MS_ACTIVE;
/* Turn on quotas so that they are updated correctly */
for (i = 0; i < MAXQUOTAS; i++) {
- if (EXT3_SB(sb)->s_qf_names[i]) {
- int ret = ext3_quota_on_mount(sb, i);
+ if (EXT4_SB(sb)->s_qf_names[i]) {
+ int ret = ext4_quota_on_mount(sb, i);
if (ret < 0)
printk(KERN_ERR
- "EXT3-fs: Cannot turn on journalled "
+ "EXT4-fs: Cannot turn on journalled "
"quota: error %d\n", ret);
}
}
struct inode *inode;
if (!(inode =
- ext3_orphan_get(sb, le32_to_cpu(es->s_last_orphan)))) {
+ ext4_orphan_get(sb, le32_to_cpu(es->s_last_orphan)))) {
es->s_last_orphan = 0;
break;
}
- list_add(&EXT3_I(inode)->i_orphan, &EXT3_SB(sb)->s_orphan);
+ list_add(&EXT4_I(inode)->i_orphan, &EXT4_SB(sb)->s_orphan);
DQUOT_INIT(inode);
if (inode->i_nlink) {
printk(KERN_DEBUG
__FUNCTION__, inode->i_ino, inode->i_size);
jbd_debug(2, "truncating inode %lu to %Ld bytes\n",
inode->i_ino, inode->i_size);
- ext3_truncate(inode);
+ ext4_truncate(inode);
nr_truncates++;
} else {
printk(KERN_DEBUG
#define PLURAL(x) (x), ((x)==1) ? "" : "s"
if (nr_orphans)
- printk(KERN_INFO "EXT3-fs: %s: %d orphan inode%s deleted\n",
+ printk(KERN_INFO "EXT4-fs: %s: %d orphan inode%s deleted\n",
sb->s_id, PLURAL(nr_orphans));
if (nr_truncates)
- printk(KERN_INFO "EXT3-fs: %s: %d truncate%s cleaned up\n",
+ printk(KERN_INFO "EXT4-fs: %s: %d truncate%s cleaned up\n",
sb->s_id, PLURAL(nr_truncates));
#ifdef CONFIG_QUOTA
/* Turn quotas off */
* block limit, and also a limit of (2^32 - 1) 512-byte sectors in i_blocks.
* We need to be 1 filesystem block less than the 2^32 sector limit.
*/
-static loff_t ext3_max_size(int bits)
+static loff_t ext4_max_size(int bits)
{
- loff_t res = EXT3_NDIR_BLOCKS;
+ loff_t res = EXT4_NDIR_BLOCKS;
/* This constant is calculated to be the largest file size for a
* dense, 4k-blocksize file such that the total number of
* sectors in the file, including data and all indirect blocks,
return res;
}
-static ext3_fsblk_t descriptor_loc(struct super_block *sb,
- ext3_fsblk_t logic_sb_block,
+static ext4_fsblk_t descriptor_loc(struct super_block *sb,
+ ext4_fsblk_t logic_sb_block,
int nr)
{
- struct ext3_sb_info *sbi = EXT3_SB(sb);
+ struct ext4_sb_info *sbi = EXT4_SB(sb);
unsigned long bg, first_meta_bg;
int has_super = 0;
first_meta_bg = le32_to_cpu(sbi->s_es->s_first_meta_bg);
- if (!EXT3_HAS_INCOMPAT_FEATURE(sb, EXT3_FEATURE_INCOMPAT_META_BG) ||
+ if (!EXT4_HAS_INCOMPAT_FEATURE(sb, EXT4_FEATURE_INCOMPAT_META_BG) ||
nr < first_meta_bg)
return (logic_sb_block + nr + 1);
bg = sbi->s_desc_per_block * nr;
- if (ext3_bg_has_super(sb, bg))
+ if (ext4_bg_has_super(sb, bg))
has_super = 1;
- return (has_super + ext3_group_first_block_no(sb, bg));
+ return (has_super + ext4_group_first_block_no(sb, bg));
}
-static int ext3_fill_super (struct super_block *sb, void *data, int silent)
+static int ext4_fill_super (struct super_block *sb, void *data, int silent)
{
struct buffer_head * bh;
- struct ext3_super_block *es = NULL;
- struct ext3_sb_info *sbi;
- ext3_fsblk_t block;
- ext3_fsblk_t sb_block = get_sb_block(&data);
- ext3_fsblk_t logic_sb_block;
+ struct ext4_super_block *es = NULL;
+ struct ext4_sb_info *sbi;
+ ext4_fsblk_t block;
+ ext4_fsblk_t sb_block = get_sb_block(&data);
+ ext4_fsblk_t logic_sb_block;
unsigned long offset = 0;
unsigned int journal_inum = 0;
unsigned long journal_devnum = 0;
return -ENOMEM;
sb->s_fs_info = sbi;
sbi->s_mount_opt = 0;
- sbi->s_resuid = EXT3_DEF_RESUID;
- sbi->s_resgid = EXT3_DEF_RESGID;
+ sbi->s_resuid = EXT4_DEF_RESUID;
+ sbi->s_resgid = EXT4_DEF_RESGID;
unlock_kernel();
- blocksize = sb_min_blocksize(sb, EXT3_MIN_BLOCK_SIZE);
+ blocksize = sb_min_blocksize(sb, EXT4_MIN_BLOCK_SIZE);
if (!blocksize) {
- printk(KERN_ERR "EXT3-fs: unable to set blocksize\n");
+ printk(KERN_ERR "EXT4-fs: unable to set blocksize\n");
goto out_fail;
}
/*
- * The ext3 superblock will not be buffer aligned for other than 1kB
+ * The ext4 superblock will not be buffer aligned for other than 1kB
* block sizes. We need to calculate the offset from buffer start.
*/
- if (blocksize != EXT3_MIN_BLOCK_SIZE) {
- logic_sb_block = (sb_block * EXT3_MIN_BLOCK_SIZE) / blocksize;
- offset = (sb_block * EXT3_MIN_BLOCK_SIZE) % blocksize;
+ if (blocksize != EXT4_MIN_BLOCK_SIZE) {
+ logic_sb_block = (sb_block * EXT4_MIN_BLOCK_SIZE) / blocksize;
+ offset = (sb_block * EXT4_MIN_BLOCK_SIZE) % blocksize;
} else {
logic_sb_block = sb_block;
}
if (!(bh = sb_bread(sb, logic_sb_block))) {
- printk (KERN_ERR "EXT3-fs: unable to read superblock\n");
+ printk (KERN_ERR "EXT4-fs: unable to read superblock\n");
goto out_fail;
}
/*
* Note: s_es must be initialized as soon as possible because
- * some ext3 macro-instructions depend on its value
+ * some ext4 macro-instructions depend on its value
*/
- es = (struct ext3_super_block *) (((char *)bh->b_data) + offset);
+ es = (struct ext4_super_block *) (((char *)bh->b_data) + offset);
sbi->s_es = es;
sb->s_magic = le16_to_cpu(es->s_magic);
- if (sb->s_magic != EXT3_SUPER_MAGIC)
- goto cantfind_ext3;
+ if (sb->s_magic != EXT4_SUPER_MAGIC)
+ goto cantfind_ext4;
/* Set defaults before we parse the mount options */
def_mount_opts = le32_to_cpu(es->s_default_mount_opts);
- if (def_mount_opts & EXT3_DEFM_DEBUG)
+ if (def_mount_opts & EXT4_DEFM_DEBUG)
set_opt(sbi->s_mount_opt, DEBUG);
- if (def_mount_opts & EXT3_DEFM_BSDGROUPS)
+ if (def_mount_opts & EXT4_DEFM_BSDGROUPS)
set_opt(sbi->s_mount_opt, GRPID);
- if (def_mount_opts & EXT3_DEFM_UID16)
+ if (def_mount_opts & EXT4_DEFM_UID16)
set_opt(sbi->s_mount_opt, NO_UID32);
- if (def_mount_opts & EXT3_DEFM_XATTR_USER)
+ if (def_mount_opts & EXT4_DEFM_XATTR_USER)
set_opt(sbi->s_mount_opt, XATTR_USER);
- if (def_mount_opts & EXT3_DEFM_ACL)
+ if (def_mount_opts & EXT4_DEFM_ACL)
set_opt(sbi->s_mount_opt, POSIX_ACL);
- if ((def_mount_opts & EXT3_DEFM_JMODE) == EXT3_DEFM_JMODE_DATA)
- sbi->s_mount_opt |= EXT3_MOUNT_JOURNAL_DATA;
- else if ((def_mount_opts & EXT3_DEFM_JMODE) == EXT3_DEFM_JMODE_ORDERED)
- sbi->s_mount_opt |= EXT3_MOUNT_ORDERED_DATA;
- else if ((def_mount_opts & EXT3_DEFM_JMODE) == EXT3_DEFM_JMODE_WBACK)
- sbi->s_mount_opt |= EXT3_MOUNT_WRITEBACK_DATA;
-
- if (le16_to_cpu(sbi->s_es->s_errors) == EXT3_ERRORS_PANIC)
+ if ((def_mount_opts & EXT4_DEFM_JMODE) == EXT4_DEFM_JMODE_DATA)
+ sbi->s_mount_opt |= EXT4_MOUNT_JOURNAL_DATA;
+ else if ((def_mount_opts & EXT4_DEFM_JMODE) == EXT4_DEFM_JMODE_ORDERED)
+ sbi->s_mount_opt |= EXT4_MOUNT_ORDERED_DATA;
+ else if ((def_mount_opts & EXT4_DEFM_JMODE) == EXT4_DEFM_JMODE_WBACK)
+ sbi->s_mount_opt |= EXT4_MOUNT_WRITEBACK_DATA;
+
+ if (le16_to_cpu(sbi->s_es->s_errors) == EXT4_ERRORS_PANIC)
set_opt(sbi->s_mount_opt, ERRORS_PANIC);
- else if (le16_to_cpu(sbi->s_es->s_errors) == EXT3_ERRORS_RO)
+ else if (le16_to_cpu(sbi->s_es->s_errors) == EXT4_ERRORS_RO)
set_opt(sbi->s_mount_opt, ERRORS_RO);
sbi->s_resuid = le16_to_cpu(es->s_def_resuid);
goto failed_mount;
sb->s_flags = (sb->s_flags & ~MS_POSIXACL) |
- ((sbi->s_mount_opt & EXT3_MOUNT_POSIX_ACL) ? MS_POSIXACL : 0);
+ ((sbi->s_mount_opt & EXT4_MOUNT_POSIX_ACL) ? MS_POSIXACL : 0);
- if (le32_to_cpu(es->s_rev_level) == EXT3_GOOD_OLD_REV &&
- (EXT3_HAS_COMPAT_FEATURE(sb, ~0U) ||
- EXT3_HAS_RO_COMPAT_FEATURE(sb, ~0U) ||
- EXT3_HAS_INCOMPAT_FEATURE(sb, ~0U)))
+ if (le32_to_cpu(es->s_rev_level) == EXT4_GOOD_OLD_REV &&
+ (EXT4_HAS_COMPAT_FEATURE(sb, ~0U) ||
+ EXT4_HAS_RO_COMPAT_FEATURE(sb, ~0U) ||
+ EXT4_HAS_INCOMPAT_FEATURE(sb, ~0U)))
printk(KERN_WARNING
- "EXT3-fs warning: feature flags set on rev 0 fs, "
+ "EXT4-fs warning: feature flags set on rev 0 fs, "
"running e2fsck is recommended\n");
/*
* Check feature flags regardless of the revision level, since we
* previously didn't change the revision level when setting the flags,
* so there is a chance incompat flags are set on a rev 0 filesystem.
*/
- features = EXT3_HAS_INCOMPAT_FEATURE(sb, ~EXT3_FEATURE_INCOMPAT_SUPP);
+ features = EXT4_HAS_INCOMPAT_FEATURE(sb, ~EXT4_FEATURE_INCOMPAT_SUPP);
if (features) {
- printk(KERN_ERR "EXT3-fs: %s: couldn't mount because of "
+ printk(KERN_ERR "EXT4-fs: %s: couldn't mount because of "
"unsupported optional features (%x).\n",
sb->s_id, le32_to_cpu(features));
goto failed_mount;
}
- features = EXT3_HAS_RO_COMPAT_FEATURE(sb, ~EXT3_FEATURE_RO_COMPAT_SUPP);
+ features = EXT4_HAS_RO_COMPAT_FEATURE(sb, ~EXT4_FEATURE_RO_COMPAT_SUPP);
if (!(sb->s_flags & MS_RDONLY) && features) {
- printk(KERN_ERR "EXT3-fs: %s: couldn't mount RDWR because of "
+ printk(KERN_ERR "EXT4-fs: %s: couldn't mount RDWR because of "
"unsupported optional features (%x).\n",
sb->s_id, le32_to_cpu(features));
goto failed_mount;
}
blocksize = BLOCK_SIZE << le32_to_cpu(es->s_log_block_size);
- if (blocksize < EXT3_MIN_BLOCK_SIZE ||
- blocksize > EXT3_MAX_BLOCK_SIZE) {
+ if (blocksize < EXT4_MIN_BLOCK_SIZE ||
+ blocksize > EXT4_MAX_BLOCK_SIZE) {
printk(KERN_ERR
- "EXT3-fs: Unsupported filesystem blocksize %d on %s.\n",
+ "EXT4-fs: Unsupported filesystem blocksize %d on %s.\n",
blocksize, sb->s_id);
goto failed_mount;
}
* than the hardware sectorsize for the machine.
*/
if (blocksize < hblock) {
- printk(KERN_ERR "EXT3-fs: blocksize %d too small for "
+ printk(KERN_ERR "EXT4-fs: blocksize %d too small for "
"device blocksize %d.\n", blocksize, hblock);
goto failed_mount;
}
brelse (bh);
sb_set_blocksize(sb, blocksize);
- logic_sb_block = (sb_block * EXT3_MIN_BLOCK_SIZE) / blocksize;
- offset = (sb_block * EXT3_MIN_BLOCK_SIZE) % blocksize;
+ logic_sb_block = (sb_block * EXT4_MIN_BLOCK_SIZE) / blocksize;
+ offset = (sb_block * EXT4_MIN_BLOCK_SIZE) % blocksize;
bh = sb_bread(sb, logic_sb_block);
if (!bh) {
printk(KERN_ERR
- "EXT3-fs: Can't read superblock on 2nd try.\n");
+ "EXT4-fs: Can't read superblock on 2nd try.\n");
goto failed_mount;
}
- es = (struct ext3_super_block *)(((char *)bh->b_data) + offset);
+ es = (struct ext4_super_block *)(((char *)bh->b_data) + offset);
sbi->s_es = es;
- if (es->s_magic != cpu_to_le16(EXT3_SUPER_MAGIC)) {
+ if (es->s_magic != cpu_to_le16(EXT4_SUPER_MAGIC)) {
printk (KERN_ERR
- "EXT3-fs: Magic mismatch, very weird !\n");
+ "EXT4-fs: Magic mismatch, very weird !\n");
goto failed_mount;
}
}
- sb->s_maxbytes = ext3_max_size(sb->s_blocksize_bits);
+ sb->s_maxbytes = ext4_max_size(sb->s_blocksize_bits);
- if (le32_to_cpu(es->s_rev_level) == EXT3_GOOD_OLD_REV) {
- sbi->s_inode_size = EXT3_GOOD_OLD_INODE_SIZE;
- sbi->s_first_ino = EXT3_GOOD_OLD_FIRST_INO;
+ if (le32_to_cpu(es->s_rev_level) == EXT4_GOOD_OLD_REV) {
+ sbi->s_inode_size = EXT4_GOOD_OLD_INODE_SIZE;
+ sbi->s_first_ino = EXT4_GOOD_OLD_FIRST_INO;
} else {
sbi->s_inode_size = le16_to_cpu(es->s_inode_size);
sbi->s_first_ino = le32_to_cpu(es->s_first_ino);
- if ((sbi->s_inode_size < EXT3_GOOD_OLD_INODE_SIZE) ||
+ if ((sbi->s_inode_size < EXT4_GOOD_OLD_INODE_SIZE) ||
(sbi->s_inode_size & (sbi->s_inode_size - 1)) ||
(sbi->s_inode_size > blocksize)) {
printk (KERN_ERR
- "EXT3-fs: unsupported inode size: %d\n",
+ "EXT4-fs: unsupported inode size: %d\n",
sbi->s_inode_size);
goto failed_mount;
}
}
- sbi->s_frag_size = EXT3_MIN_FRAG_SIZE <<
+ sbi->s_frag_size = EXT4_MIN_FRAG_SIZE <<
le32_to_cpu(es->s_log_frag_size);
if (blocksize != sbi->s_frag_size) {
printk(KERN_ERR
- "EXT3-fs: fragsize %lu != blocksize %u (unsupported)\n",
+ "EXT4-fs: fragsize %lu != blocksize %u (unsupported)\n",
sbi->s_frag_size, blocksize);
goto failed_mount;
}
sbi->s_blocks_per_group = le32_to_cpu(es->s_blocks_per_group);
sbi->s_frags_per_group = le32_to_cpu(es->s_frags_per_group);
sbi->s_inodes_per_group = le32_to_cpu(es->s_inodes_per_group);
- if (EXT3_INODE_SIZE(sb) == 0)
- goto cantfind_ext3;
- sbi->s_inodes_per_block = blocksize / EXT3_INODE_SIZE(sb);
+ if (EXT4_INODE_SIZE(sb) == 0)
+ goto cantfind_ext4;
+ sbi->s_inodes_per_block = blocksize / EXT4_INODE_SIZE(sb);
if (sbi->s_inodes_per_block == 0)
- goto cantfind_ext3;
+ goto cantfind_ext4;
sbi->s_itb_per_group = sbi->s_inodes_per_group /
sbi->s_inodes_per_block;
- sbi->s_desc_per_block = blocksize / sizeof(struct ext3_group_desc);
+ sbi->s_desc_per_block = blocksize / sizeof(struct ext4_group_desc);
sbi->s_sbh = bh;
sbi->s_mount_state = le16_to_cpu(es->s_state);
- sbi->s_addr_per_block_bits = log2(EXT3_ADDR_PER_BLOCK(sb));
- sbi->s_desc_per_block_bits = log2(EXT3_DESC_PER_BLOCK(sb));
+ sbi->s_addr_per_block_bits = log2(EXT4_ADDR_PER_BLOCK(sb));
+ sbi->s_desc_per_block_bits = log2(EXT4_DESC_PER_BLOCK(sb));
for (i=0; i < 4; i++)
sbi->s_hash_seed[i] = le32_to_cpu(es->s_hash_seed[i]);
sbi->s_def_hash_version = es->s_def_hash_version;
if (sbi->s_blocks_per_group > blocksize * 8) {
printk (KERN_ERR
- "EXT3-fs: #blocks per group too big: %lu\n",
+ "EXT4-fs: #blocks per group too big: %lu\n",
sbi->s_blocks_per_group);
goto failed_mount;
}
if (sbi->s_frags_per_group > blocksize * 8) {
printk (KERN_ERR
- "EXT3-fs: #fragments per group too big: %lu\n",
+ "EXT4-fs: #fragments per group too big: %lu\n",
sbi->s_frags_per_group);
goto failed_mount;
}
if (sbi->s_inodes_per_group > blocksize * 8) {
printk (KERN_ERR
- "EXT3-fs: #inodes per group too big: %lu\n",
+ "EXT4-fs: #inodes per group too big: %lu\n",
sbi->s_inodes_per_group);
goto failed_mount;
}
if (le32_to_cpu(es->s_blocks_count) >
(sector_t)(~0ULL) >> (sb->s_blocksize_bits - 9)) {
- printk(KERN_ERR "EXT3-fs: filesystem on %s:"
+ printk(KERN_ERR "EXT4-fs: filesystem on %s:"
" too large to mount safely\n", sb->s_id);
if (sizeof(sector_t) < 8)
- printk(KERN_WARNING "EXT3-fs: CONFIG_LBD not "
+ printk(KERN_WARNING "EXT4-fs: CONFIG_LBD not "
"enabled\n");
goto failed_mount;
}
- if (EXT3_BLOCKS_PER_GROUP(sb) == 0)
- goto cantfind_ext3;
+ if (EXT4_BLOCKS_PER_GROUP(sb) == 0)
+ goto cantfind_ext4;
sbi->s_groups_count = ((le32_to_cpu(es->s_blocks_count) -
le32_to_cpu(es->s_first_data_block) - 1)
- / EXT3_BLOCKS_PER_GROUP(sb)) + 1;
- db_count = (sbi->s_groups_count + EXT3_DESC_PER_BLOCK(sb) - 1) /
- EXT3_DESC_PER_BLOCK(sb);
+ / EXT4_BLOCKS_PER_GROUP(sb)) + 1;
+ db_count = (sbi->s_groups_count + EXT4_DESC_PER_BLOCK(sb) - 1) /
+ EXT4_DESC_PER_BLOCK(sb);
sbi->s_group_desc = kmalloc(db_count * sizeof (struct buffer_head *),
GFP_KERNEL);
if (sbi->s_group_desc == NULL) {
- printk (KERN_ERR "EXT3-fs: not enough memory\n");
+ printk (KERN_ERR "EXT4-fs: not enough memory\n");
goto failed_mount;
}
block = descriptor_loc(sb, logic_sb_block, i);
sbi->s_group_desc[i] = sb_bread(sb, block);
if (!sbi->s_group_desc[i]) {
- printk (KERN_ERR "EXT3-fs: "
+ printk (KERN_ERR "EXT4-fs: "
"can't read group descriptor %d\n", i);
db_count = i;
goto failed_mount2;
}
}
- if (!ext3_check_descriptors (sb)) {
- printk(KERN_ERR "EXT3-fs: group descriptors corrupted!\n");
+ if (!ext4_check_descriptors (sb)) {
+ printk(KERN_ERR "EXT4-fs: group descriptors corrupted!\n");
goto failed_mount2;
}
sbi->s_gdb_count = db_count;
spin_lock_init(&sbi->s_next_gen_lock);
percpu_counter_init(&sbi->s_freeblocks_counter,
- ext3_count_free_blocks(sb));
+ ext4_count_free_blocks(sb));
percpu_counter_init(&sbi->s_freeinodes_counter,
- ext3_count_free_inodes(sb));
+ ext4_count_free_inodes(sb));
percpu_counter_init(&sbi->s_dirs_counter,
- ext3_count_dirs(sb));
+ ext4_count_dirs(sb));
/* per fileystem reservation list head & lock */
spin_lock_init(&sbi->s_rsv_window_lock);
* reservation window list --- it gives us a placeholder for
* append-at-start-of-list which makes the allocation logic
* _much_ simpler. */
- sbi->s_rsv_window_head.rsv_start = EXT3_RESERVE_WINDOW_NOT_ALLOCATED;
- sbi->s_rsv_window_head.rsv_end = EXT3_RESERVE_WINDOW_NOT_ALLOCATED;
+ sbi->s_rsv_window_head.rsv_start = EXT4_RESERVE_WINDOW_NOT_ALLOCATED;
+ sbi->s_rsv_window_head.rsv_end = EXT4_RESERVE_WINDOW_NOT_ALLOCATED;
sbi->s_rsv_window_head.rsv_alloc_hit = 0;
sbi->s_rsv_window_head.rsv_goal_size = 0;
- ext3_rsv_window_add(sb, &sbi->s_rsv_window_head);
+ ext4_rsv_window_add(sb, &sbi->s_rsv_window_head);
/*
* set up enough so that it can read an inode
*/
- sb->s_op = &ext3_sops;
- sb->s_export_op = &ext3_export_ops;
- sb->s_xattr = ext3_xattr_handlers;
+ sb->s_op = &ext4_sops;
+ sb->s_export_op = &ext4_export_ops;
+ sb->s_xattr = ext4_xattr_handlers;
#ifdef CONFIG_QUOTA
- sb->s_qcop = &ext3_qctl_operations;
- sb->dq_op = &ext3_quota_operations;
+ sb->s_qcop = &ext4_qctl_operations;
+ sb->dq_op = &ext4_quota_operations;
#endif
INIT_LIST_HEAD(&sbi->s_orphan); /* unlinked but open files */
sb->s_root = NULL;
needs_recovery = (es->s_last_orphan != 0 ||
- EXT3_HAS_INCOMPAT_FEATURE(sb,
- EXT3_FEATURE_INCOMPAT_RECOVER));
+ EXT4_HAS_INCOMPAT_FEATURE(sb,
+ EXT4_FEATURE_INCOMPAT_RECOVER));
/*
* The first inode we look at is the journal inode. Don't try
* root first: it may be modified in the journal!
*/
if (!test_opt(sb, NOLOAD) &&
- EXT3_HAS_COMPAT_FEATURE(sb, EXT3_FEATURE_COMPAT_HAS_JOURNAL)) {
- if (ext3_load_journal(sb, es, journal_devnum))
+ EXT4_HAS_COMPAT_FEATURE(sb, EXT4_FEATURE_COMPAT_HAS_JOURNAL)) {
+ if (ext4_load_journal(sb, es, journal_devnum))
goto failed_mount3;
} else if (journal_inum) {
- if (ext3_create_journal(sb, es, journal_inum))
+ if (ext4_create_journal(sb, es, journal_inum))
goto failed_mount3;
} else {
if (!silent)
printk (KERN_ERR
- "ext3: No journal on filesystem on %s\n",
+ "ext4: No journal on filesystem on %s\n",
sb->s_id);
goto failed_mount3;
}
set_opt(sbi->s_mount_opt, JOURNAL_DATA);
break;
- case EXT3_MOUNT_ORDERED_DATA:
- case EXT3_MOUNT_WRITEBACK_DATA:
+ case EXT4_MOUNT_ORDERED_DATA:
+ case EXT4_MOUNT_WRITEBACK_DATA:
if (!journal_check_available_features
(sbi->s_journal, 0, 0, JFS_FEATURE_INCOMPAT_REVOKE)) {
- printk(KERN_ERR "EXT3-fs: Journal does not support "
+ printk(KERN_ERR "EXT4-fs: Journal does not support "
"requested data journaling mode\n");
goto failed_mount4;
}
}
if (test_opt(sb, NOBH)) {
- if (!(test_opt(sb, DATA_FLAGS) == EXT3_MOUNT_WRITEBACK_DATA)) {
- printk(KERN_WARNING "EXT3-fs: Ignoring nobh option - "
+ if (!(test_opt(sb, DATA_FLAGS) == EXT4_MOUNT_WRITEBACK_DATA)) {
+ printk(KERN_WARNING "EXT4-fs: Ignoring nobh option - "
"its supported only with writeback mode\n");
clear_opt(sbi->s_mount_opt, NOBH);
}
* so we can safely mount the rest of the filesystem now.
*/
- root = iget(sb, EXT3_ROOT_INO);
+ root = iget(sb, EXT4_ROOT_INO);
sb->s_root = d_alloc_root(root);
if (!sb->s_root) {
- printk(KERN_ERR "EXT3-fs: get root inode failed\n");
+ printk(KERN_ERR "EXT4-fs: get root inode failed\n");
iput(root);
goto failed_mount4;
}
if (!S_ISDIR(root->i_mode) || !root->i_blocks || !root->i_size) {
dput(sb->s_root);
sb->s_root = NULL;
- printk(KERN_ERR "EXT3-fs: corrupt root inode, run e2fsck\n");
+ printk(KERN_ERR "EXT4-fs: corrupt root inode, run e2fsck\n");
goto failed_mount4;
}
- ext3_setup_super (sb, es, sb->s_flags & MS_RDONLY);
+ ext4_setup_super (sb, es, sb->s_flags & MS_RDONLY);
/*
* akpm: core read_super() calls in here with the superblock locked.
* That deadlocks, because orphan cleanup needs to lock the superblock
* and aviro says that's the only reason for hanging onto the
* superblock lock.
*/
- EXT3_SB(sb)->s_mount_state |= EXT3_ORPHAN_FS;
- ext3_orphan_cleanup(sb, es);
- EXT3_SB(sb)->s_mount_state &= ~EXT3_ORPHAN_FS;
+ EXT4_SB(sb)->s_mount_state |= EXT4_ORPHAN_FS;
+ ext4_orphan_cleanup(sb, es);
+ EXT4_SB(sb)->s_mount_state &= ~EXT4_ORPHAN_FS;
if (needs_recovery)
- printk (KERN_INFO "EXT3-fs: recovery complete.\n");
- ext3_mark_recovery_complete(sb, es);
- printk (KERN_INFO "EXT3-fs: mounted filesystem with %s data mode.\n",
- test_opt(sb,DATA_FLAGS) == EXT3_MOUNT_JOURNAL_DATA ? "journal":
- test_opt(sb,DATA_FLAGS) == EXT3_MOUNT_ORDERED_DATA ? "ordered":
+ printk (KERN_INFO "EXT4-fs: recovery complete.\n");
+ ext4_mark_recovery_complete(sb, es);
+ printk (KERN_INFO "EXT4-fs: mounted filesystem with %s data mode.\n",
+ test_opt(sb,DATA_FLAGS) == EXT4_MOUNT_JOURNAL_DATA ? "journal":
+ test_opt(sb,DATA_FLAGS) == EXT4_MOUNT_ORDERED_DATA ? "ordered":
"writeback");
lock_kernel();
return 0;
-cantfind_ext3:
+cantfind_ext4:
if (!silent)
- printk(KERN_ERR "VFS: Can't find ext3 filesystem on dev %s.\n",
+ printk(KERN_ERR "VFS: Can't find ext4 filesystem on dev %s.\n",
sb->s_id);
goto failed_mount;
for (i = 0; i < MAXQUOTAS; i++)
kfree(sbi->s_qf_names[i]);
#endif
- ext3_blkdev_remove(sbi);
+ ext4_blkdev_remove(sbi);
brelse(bh);
out_fail:
sb->s_fs_info = NULL;
* initial mount, once the journal has been initialised but before we've
* done any recovery; and again on any subsequent remount.
*/
-static void ext3_init_journal_params(struct super_block *sb, journal_t *journal)
+static void ext4_init_journal_params(struct super_block *sb, journal_t *journal)
{
- struct ext3_sb_info *sbi = EXT3_SB(sb);
+ struct ext4_sb_info *sbi = EXT4_SB(sb);
if (sbi->s_commit_interval)
journal->j_commit_interval = sbi->s_commit_interval;
- /* We could also set up an ext3-specific default for the commit
+ /* We could also set up an ext4-specific default for the commit
* interval here, but for now we'll just fall back to the jbd
* default. */
spin_unlock(&journal->j_state_lock);
}
-static journal_t *ext3_get_journal(struct super_block *sb,
+static journal_t *ext4_get_journal(struct super_block *sb,
unsigned int journal_inum)
{
struct inode *journal_inode;
journal_inode = iget(sb, journal_inum);
if (!journal_inode) {
- printk(KERN_ERR "EXT3-fs: no journal found.\n");
+ printk(KERN_ERR "EXT4-fs: no journal found.\n");
return NULL;
}
if (!journal_inode->i_nlink) {
make_bad_inode(journal_inode);
iput(journal_inode);
- printk(KERN_ERR "EXT3-fs: journal inode is deleted.\n");
+ printk(KERN_ERR "EXT4-fs: journal inode is deleted.\n");
return NULL;
}
jbd_debug(2, "Journal inode found at %p: %Ld bytes\n",
journal_inode, journal_inode->i_size);
if (is_bad_inode(journal_inode) || !S_ISREG(journal_inode->i_mode)) {
- printk(KERN_ERR "EXT3-fs: invalid journal inode.\n");
+ printk(KERN_ERR "EXT4-fs: invalid journal inode.\n");
iput(journal_inode);
return NULL;
}
journal = journal_init_inode(journal_inode);
if (!journal) {
- printk(KERN_ERR "EXT3-fs: Could not load journal inode\n");
+ printk(KERN_ERR "EXT4-fs: Could not load journal inode\n");
iput(journal_inode);
return NULL;
}
journal->j_private = sb;
- ext3_init_journal_params(sb, journal);
+ ext4_init_journal_params(sb, journal);
return journal;
}
-static journal_t *ext3_get_dev_journal(struct super_block *sb,
+static journal_t *ext4_get_dev_journal(struct super_block *sb,
dev_t j_dev)
{
struct buffer_head * bh;
journal_t *journal;
- ext3_fsblk_t start;
- ext3_fsblk_t len;
+ ext4_fsblk_t start;
+ ext4_fsblk_t len;
int hblock, blocksize;
- ext3_fsblk_t sb_block;
+ ext4_fsblk_t sb_block;
unsigned long offset;
- struct ext3_super_block * es;
+ struct ext4_super_block * es;
struct block_device *bdev;
- bdev = ext3_blkdev_get(j_dev);
+ bdev = ext4_blkdev_get(j_dev);
if (bdev == NULL)
return NULL;
if (bd_claim(bdev, sb)) {
printk(KERN_ERR
- "EXT3: failed to claim external journal device.\n");
+ "EXT4: failed to claim external journal device.\n");
blkdev_put(bdev);
return NULL;
}
hblock = bdev_hardsect_size(bdev);
if (blocksize < hblock) {
printk(KERN_ERR
- "EXT3-fs: blocksize too small for journal device.\n");
+ "EXT4-fs: blocksize too small for journal device.\n");
goto out_bdev;
}
- sb_block = EXT3_MIN_BLOCK_SIZE / blocksize;
- offset = EXT3_MIN_BLOCK_SIZE % blocksize;
+ sb_block = EXT4_MIN_BLOCK_SIZE / blocksize;
+ offset = EXT4_MIN_BLOCK_SIZE % blocksize;
set_blocksize(bdev, blocksize);
if (!(bh = __bread(bdev, sb_block, blocksize))) {
- printk(KERN_ERR "EXT3-fs: couldn't read superblock of "
+ printk(KERN_ERR "EXT4-fs: couldn't read superblock of "
"external journal\n");
goto out_bdev;
}
- es = (struct ext3_super_block *) (((char *)bh->b_data) + offset);
- if ((le16_to_cpu(es->s_magic) != EXT3_SUPER_MAGIC) ||
+ es = (struct ext4_super_block *) (((char *)bh->b_data) + offset);
+ if ((le16_to_cpu(es->s_magic) != EXT4_SUPER_MAGIC) ||
!(le32_to_cpu(es->s_feature_incompat) &
- EXT3_FEATURE_INCOMPAT_JOURNAL_DEV)) {
- printk(KERN_ERR "EXT3-fs: external journal has "
+ EXT4_FEATURE_INCOMPAT_JOURNAL_DEV)) {
+ printk(KERN_ERR "EXT4-fs: external journal has "
"bad superblock\n");
brelse(bh);
goto out_bdev;
}
- if (memcmp(EXT3_SB(sb)->s_es->s_journal_uuid, es->s_uuid, 16)) {
- printk(KERN_ERR "EXT3-fs: journal UUID does not match\n");
+ if (memcmp(EXT4_SB(sb)->s_es->s_journal_uuid, es->s_uuid, 16)) {
+ printk(KERN_ERR "EXT4-fs: journal UUID does not match\n");
brelse(bh);
goto out_bdev;
}
journal = journal_init_dev(bdev, sb->s_bdev,
start, len, blocksize);
if (!journal) {
- printk(KERN_ERR "EXT3-fs: failed to create device journal\n");
+ printk(KERN_ERR "EXT4-fs: failed to create device journal\n");
goto out_bdev;
}
journal->j_private = sb;
ll_rw_block(READ, 1, &journal->j_sb_buffer);
wait_on_buffer(journal->j_sb_buffer);
if (!buffer_uptodate(journal->j_sb_buffer)) {
- printk(KERN_ERR "EXT3-fs: I/O error on journal device\n");
+ printk(KERN_ERR "EXT4-fs: I/O error on journal device\n");
goto out_journal;
}
if (be32_to_cpu(journal->j_superblock->s_nr_users) != 1) {
- printk(KERN_ERR "EXT3-fs: External journal has more than one "
+ printk(KERN_ERR "EXT4-fs: External journal has more than one "
"user (unsupported) - %d\n",
be32_to_cpu(journal->j_superblock->s_nr_users));
goto out_journal;
}
- EXT3_SB(sb)->journal_bdev = bdev;
- ext3_init_journal_params(sb, journal);
+ EXT4_SB(sb)->journal_bdev = bdev;
+ ext4_init_journal_params(sb, journal);
return journal;
out_journal:
journal_destroy(journal);
out_bdev:
- ext3_blkdev_put(bdev);
+ ext4_blkdev_put(bdev);
return NULL;
}
-static int ext3_load_journal(struct super_block *sb,
- struct ext3_super_block *es,
+static int ext4_load_journal(struct super_block *sb,
+ struct ext4_super_block *es,
unsigned long journal_devnum)
{
journal_t *journal;
if (journal_devnum &&
journal_devnum != le32_to_cpu(es->s_journal_dev)) {
- printk(KERN_INFO "EXT3-fs: external journal device major/minor "
+ printk(KERN_INFO "EXT4-fs: external journal device major/minor "
"numbers have changed\n");
journal_dev = new_decode_dev(journal_devnum);
} else
* can get read-write access to the device.
*/
- if (EXT3_HAS_INCOMPAT_FEATURE(sb, EXT3_FEATURE_INCOMPAT_RECOVER)) {
+ if (EXT4_HAS_INCOMPAT_FEATURE(sb, EXT4_FEATURE_INCOMPAT_RECOVER)) {
if (sb->s_flags & MS_RDONLY) {
- printk(KERN_INFO "EXT3-fs: INFO: recovery "
+ printk(KERN_INFO "EXT4-fs: INFO: recovery "
"required on readonly filesystem.\n");
if (really_read_only) {
- printk(KERN_ERR "EXT3-fs: write access "
+ printk(KERN_ERR "EXT4-fs: write access "
"unavailable, cannot proceed.\n");
return -EROFS;
}
- printk (KERN_INFO "EXT3-fs: write access will "
+ printk (KERN_INFO "EXT4-fs: write access will "
"be enabled during recovery.\n");
}
}
if (journal_inum && journal_dev) {
- printk(KERN_ERR "EXT3-fs: filesystem has both journal "
+ printk(KERN_ERR "EXT4-fs: filesystem has both journal "
"and inode journals!\n");
return -EINVAL;
}
if (journal_inum) {
- if (!(journal = ext3_get_journal(sb, journal_inum)))
+ if (!(journal = ext4_get_journal(sb, journal_inum)))
return -EINVAL;
} else {
- if (!(journal = ext3_get_dev_journal(sb, journal_dev)))
+ if (!(journal = ext4_get_dev_journal(sb, journal_dev)))
return -EINVAL;
}
if (!really_read_only && test_opt(sb, UPDATE_JOURNAL)) {
err = journal_update_format(journal);
if (err) {
- printk(KERN_ERR "EXT3-fs: error updating journal.\n");
+ printk(KERN_ERR "EXT4-fs: error updating journal.\n");
journal_destroy(journal);
return err;
}
}
- if (!EXT3_HAS_INCOMPAT_FEATURE(sb, EXT3_FEATURE_INCOMPAT_RECOVER))
+ if (!EXT4_HAS_INCOMPAT_FEATURE(sb, EXT4_FEATURE_INCOMPAT_RECOVER))
err = journal_wipe(journal, !really_read_only);
if (!err)
err = journal_load(journal);
if (err) {
- printk(KERN_ERR "EXT3-fs: error loading journal.\n");
+ printk(KERN_ERR "EXT4-fs: error loading journal.\n");
journal_destroy(journal);
return err;
}
- EXT3_SB(sb)->s_journal = journal;
- ext3_clear_journal_err(sb, es);
+ EXT4_SB(sb)->s_journal = journal;
+ ext4_clear_journal_err(sb, es);
if (journal_devnum &&
journal_devnum != le32_to_cpu(es->s_journal_dev)) {
sb->s_dirt = 1;
/* Make sure we flush the recovery flag to disk. */
- ext3_commit_super(sb, es, 1);
+ ext4_commit_super(sb, es, 1);
}
return 0;
}
-static int ext3_create_journal(struct super_block * sb,
- struct ext3_super_block * es,
+static int ext4_create_journal(struct super_block * sb,
+ struct ext4_super_block * es,
unsigned int journal_inum)
{
journal_t *journal;
if (sb->s_flags & MS_RDONLY) {
- printk(KERN_ERR "EXT3-fs: readonly filesystem when trying to "
+ printk(KERN_ERR "EXT4-fs: readonly filesystem when trying to "
"create journal.\n");
return -EROFS;
}
- if (!(journal = ext3_get_journal(sb, journal_inum)))
+ if (!(journal = ext4_get_journal(sb, journal_inum)))
return -EINVAL;
- printk(KERN_INFO "EXT3-fs: creating new journal on inode %u\n",
+ printk(KERN_INFO "EXT4-fs: creating new journal on inode %u\n",
journal_inum);
if (journal_create(journal)) {
- printk(KERN_ERR "EXT3-fs: error creating journal.\n");
+ printk(KERN_ERR "EXT4-fs: error creating journal.\n");
journal_destroy(journal);
return -EIO;
}
- EXT3_SB(sb)->s_journal = journal;
+ EXT4_SB(sb)->s_journal = journal;
- ext3_update_dynamic_rev(sb);
- EXT3_SET_INCOMPAT_FEATURE(sb, EXT3_FEATURE_INCOMPAT_RECOVER);
- EXT3_SET_COMPAT_FEATURE(sb, EXT3_FEATURE_COMPAT_HAS_JOURNAL);
+ ext4_update_dynamic_rev(sb);
+ EXT4_SET_INCOMPAT_FEATURE(sb, EXT4_FEATURE_INCOMPAT_RECOVER);
+ EXT4_SET_COMPAT_FEATURE(sb, EXT4_FEATURE_COMPAT_HAS_JOURNAL);
es->s_journal_inum = cpu_to_le32(journal_inum);
sb->s_dirt = 1;
/* Make sure we flush the recovery flag to disk. */
- ext3_commit_super(sb, es, 1);
+ ext4_commit_super(sb, es, 1);
return 0;
}
-static void ext3_commit_super (struct super_block * sb,
- struct ext3_super_block * es,
+static void ext4_commit_super (struct super_block * sb,
+ struct ext4_super_block * es,
int sync)
{
- struct buffer_head *sbh = EXT3_SB(sb)->s_sbh;
+ struct buffer_head *sbh = EXT4_SB(sb)->s_sbh;
if (!sbh)
return;
es->s_wtime = cpu_to_le32(get_seconds());
- es->s_free_blocks_count = cpu_to_le32(ext3_count_free_blocks(sb));
- es->s_free_inodes_count = cpu_to_le32(ext3_count_free_inodes(sb));
+ es->s_free_blocks_count = cpu_to_le32(ext4_count_free_blocks(sb));
+ es->s_free_inodes_count = cpu_to_le32(ext4_count_free_inodes(sb));
BUFFER_TRACE(sbh, "marking dirty");
mark_buffer_dirty(sbh);
if (sync)
* remounting) the filesystem readonly, then we will end up with a
* consistent fs on disk. Record that fact.
*/
-static void ext3_mark_recovery_complete(struct super_block * sb,
- struct ext3_super_block * es)
+static void ext4_mark_recovery_complete(struct super_block * sb,
+ struct ext4_super_block * es)
{
- journal_t *journal = EXT3_SB(sb)->s_journal;
+ journal_t *journal = EXT4_SB(sb)->s_journal;
journal_lock_updates(journal);
journal_flush(journal);
- if (EXT3_HAS_INCOMPAT_FEATURE(sb, EXT3_FEATURE_INCOMPAT_RECOVER) &&
+ if (EXT4_HAS_INCOMPAT_FEATURE(sb, EXT4_FEATURE_INCOMPAT_RECOVER) &&
sb->s_flags & MS_RDONLY) {
- EXT3_CLEAR_INCOMPAT_FEATURE(sb, EXT3_FEATURE_INCOMPAT_RECOVER);
+ EXT4_CLEAR_INCOMPAT_FEATURE(sb, EXT4_FEATURE_INCOMPAT_RECOVER);
sb->s_dirt = 0;
- ext3_commit_super(sb, es, 1);
+ ext4_commit_super(sb, es, 1);
}
journal_unlock_updates(journal);
}
* has recorded an error from a previous lifetime, move that error to the
* main filesystem now.
*/
-static void ext3_clear_journal_err(struct super_block * sb,
- struct ext3_super_block * es)
+static void ext4_clear_journal_err(struct super_block * sb,
+ struct ext4_super_block * es)
{
journal_t *journal;
int j_errno;
const char *errstr;
- journal = EXT3_SB(sb)->s_journal;
+ journal = EXT4_SB(sb)->s_journal;
/*
* Now check for any error status which may have been recorded in the
- * journal by a prior ext3_error() or ext3_abort()
+ * journal by a prior ext4_error() or ext4_abort()
*/
j_errno = journal_errno(journal);
if (j_errno) {
char nbuf[16];
- errstr = ext3_decode_error(sb, j_errno, nbuf);
- ext3_warning(sb, __FUNCTION__, "Filesystem error recorded "
+ errstr = ext4_decode_error(sb, j_errno, nbuf);
+ ext4_warning(sb, __FUNCTION__, "Filesystem error recorded "
"from previous mount: %s", errstr);
- ext3_warning(sb, __FUNCTION__, "Marking fs in need of "
+ ext4_warning(sb, __FUNCTION__, "Marking fs in need of "
"filesystem check.");
- EXT3_SB(sb)->s_mount_state |= EXT3_ERROR_FS;
- es->s_state |= cpu_to_le16(EXT3_ERROR_FS);
- ext3_commit_super (sb, es, 1);
+ EXT4_SB(sb)->s_mount_state |= EXT4_ERROR_FS;
+ es->s_state |= cpu_to_le16(EXT4_ERROR_FS);
+ ext4_commit_super (sb, es, 1);
journal_clear_err(journal);
}
* Force the running and committing transactions to commit,
* and wait on the commit.
*/
-int ext3_force_commit(struct super_block *sb)
+int ext4_force_commit(struct super_block *sb)
{
journal_t *journal;
int ret;
if (sb->s_flags & MS_RDONLY)
return 0;
- journal = EXT3_SB(sb)->s_journal;
+ journal = EXT4_SB(sb)->s_journal;
sb->s_dirt = 0;
- ret = ext3_journal_force_commit(journal);
+ ret = ext4_journal_force_commit(journal);
return ret;
}
/*
- * Ext3 always journals updates to the superblock itself, so we don't
+ * Ext4 always journals updates to the superblock itself, so we don't
* have to propagate any other updates to the superblock on disk at this
* point. Just start an async writeback to get the buffers on their way
* to the disk.
* This implicitly triggers the writebehind on sync().
*/
-static void ext3_write_super (struct super_block * sb)
+static void ext4_write_super (struct super_block * sb)
{
if (mutex_trylock(&sb->s_lock) != 0)
BUG();
sb->s_dirt = 0;
}
-static int ext3_sync_fs(struct super_block *sb, int wait)
+static int ext4_sync_fs(struct super_block *sb, int wait)
{
tid_t target;
sb->s_dirt = 0;
- if (journal_start_commit(EXT3_SB(sb)->s_journal, &target)) {
+ if (journal_start_commit(EXT4_SB(sb)->s_journal, &target)) {
if (wait)
- log_wait_commit(EXT3_SB(sb)->s_journal, target);
+ log_wait_commit(EXT4_SB(sb)->s_journal, target);
}
return 0;
}
* LVM calls this function before a (read-only) snapshot is created. This
* gives us a chance to flush the journal completely and mark the fs clean.
*/
-static void ext3_write_super_lockfs(struct super_block *sb)
+static void ext4_write_super_lockfs(struct super_block *sb)
{
sb->s_dirt = 0;
if (!(sb->s_flags & MS_RDONLY)) {
- journal_t *journal = EXT3_SB(sb)->s_journal;
+ journal_t *journal = EXT4_SB(sb)->s_journal;
/* Now we set up the journal barrier. */
journal_lock_updates(journal);
journal_flush(journal);
/* Journal blocked and flushed, clear needs_recovery flag. */
- EXT3_CLEAR_INCOMPAT_FEATURE(sb, EXT3_FEATURE_INCOMPAT_RECOVER);
- ext3_commit_super(sb, EXT3_SB(sb)->s_es, 1);
+ EXT4_CLEAR_INCOMPAT_FEATURE(sb, EXT4_FEATURE_INCOMPAT_RECOVER);
+ ext4_commit_super(sb, EXT4_SB(sb)->s_es, 1);
}
}
* Called by LVM after the snapshot is done. We need to reset the RECOVER
* flag here, even though the filesystem is not technically dirty yet.
*/
-static void ext3_unlockfs(struct super_block *sb)
+static void ext4_unlockfs(struct super_block *sb)
{
if (!(sb->s_flags & MS_RDONLY)) {
lock_super(sb);
/* Reser the needs_recovery flag before the fs is unlocked. */
- EXT3_SET_INCOMPAT_FEATURE(sb, EXT3_FEATURE_INCOMPAT_RECOVER);
- ext3_commit_super(sb, EXT3_SB(sb)->s_es, 1);
+ EXT4_SET_INCOMPAT_FEATURE(sb, EXT4_FEATURE_INCOMPAT_RECOVER);
+ ext4_commit_super(sb, EXT4_SB(sb)->s_es, 1);
unlock_super(sb);
- journal_unlock_updates(EXT3_SB(sb)->s_journal);
+ journal_unlock_updates(EXT4_SB(sb)->s_journal);
}
}
-static int ext3_remount (struct super_block * sb, int * flags, char * data)
+static int ext4_remount (struct super_block * sb, int * flags, char * data)
{
- struct ext3_super_block * es;
- struct ext3_sb_info *sbi = EXT3_SB(sb);
- ext3_fsblk_t n_blocks_count = 0;
+ struct ext4_super_block * es;
+ struct ext4_sb_info *sbi = EXT4_SB(sb);
+ ext4_fsblk_t n_blocks_count = 0;
unsigned long old_sb_flags;
- struct ext3_mount_options old_opts;
+ struct ext4_mount_options old_opts;
int err;
#ifdef CONFIG_QUOTA
int i;
goto restore_opts;
}
- if (sbi->s_mount_opt & EXT3_MOUNT_ABORT)
- ext3_abort(sb, __FUNCTION__, "Abort forced by user");
+ if (sbi->s_mount_opt & EXT4_MOUNT_ABORT)
+ ext4_abort(sb, __FUNCTION__, "Abort forced by user");
sb->s_flags = (sb->s_flags & ~MS_POSIXACL) |
- ((sbi->s_mount_opt & EXT3_MOUNT_POSIX_ACL) ? MS_POSIXACL : 0);
+ ((sbi->s_mount_opt & EXT4_MOUNT_POSIX_ACL) ? MS_POSIXACL : 0);
es = sbi->s_es;
- ext3_init_journal_params(sb, sbi->s_journal);
+ ext4_init_journal_params(sb, sbi->s_journal);
if ((*flags & MS_RDONLY) != (sb->s_flags & MS_RDONLY) ||
n_blocks_count > le32_to_cpu(es->s_blocks_count)) {
- if (sbi->s_mount_opt & EXT3_MOUNT_ABORT) {
+ if (sbi->s_mount_opt & EXT4_MOUNT_ABORT) {
err = -EROFS;
goto restore_opts;
}
* readonly, and if so set the rdonly flag and then
* mark the partition as valid again.
*/
- if (!(es->s_state & cpu_to_le16(EXT3_VALID_FS)) &&
- (sbi->s_mount_state & EXT3_VALID_FS))
+ if (!(es->s_state & cpu_to_le16(EXT4_VALID_FS)) &&
+ (sbi->s_mount_state & EXT4_VALID_FS))
es->s_state = cpu_to_le16(sbi->s_mount_state);
- ext3_mark_recovery_complete(sb, es);
+ ext4_mark_recovery_complete(sb, es);
} else {
__le32 ret;
- if ((ret = EXT3_HAS_RO_COMPAT_FEATURE(sb,
- ~EXT3_FEATURE_RO_COMPAT_SUPP))) {
- printk(KERN_WARNING "EXT3-fs: %s: couldn't "
+ if ((ret = EXT4_HAS_RO_COMPAT_FEATURE(sb,
+ ~EXT4_FEATURE_RO_COMPAT_SUPP))) {
+ printk(KERN_WARNING "EXT4-fs: %s: couldn't "
"remount RDWR because of unsupported "
"optional features (%x).\n",
sb->s_id, le32_to_cpu(ret));
* been changed by e2fsck since we originally mounted
* the partition.)
*/
- ext3_clear_journal_err(sb, es);
+ ext4_clear_journal_err(sb, es);
sbi->s_mount_state = le16_to_cpu(es->s_state);
- if ((err = ext3_group_extend(sb, es, n_blocks_count)))
+ if ((err = ext4_group_extend(sb, es, n_blocks_count)))
goto restore_opts;
- if (!ext3_setup_super (sb, es, 0))
+ if (!ext4_setup_super (sb, es, 0))
sb->s_flags &= ~MS_RDONLY;
}
}
return err;
}
-static int ext3_statfs (struct dentry * dentry, struct kstatfs * buf)
+static int ext4_statfs (struct dentry * dentry, struct kstatfs * buf)
{
struct super_block *sb = dentry->d_sb;
- struct ext3_sb_info *sbi = EXT3_SB(sb);
- struct ext3_super_block *es = sbi->s_es;
- ext3_fsblk_t overhead;
+ struct ext4_sb_info *sbi = EXT4_SB(sb);
+ struct ext4_super_block *es = sbi->s_es;
+ ext4_fsblk_t overhead;
int i;
if (test_opt (sb, MINIX_DF))
overhead = 0;
else {
unsigned long ngroups;
- ngroups = EXT3_SB(sb)->s_groups_count;
+ ngroups = EXT4_SB(sb)->s_groups_count;
smp_rmb();
/*
* feature is turned on, then not all groups have this.
*/
for (i = 0; i < ngroups; i++) {
- overhead += ext3_bg_has_super(sb, i) +
- ext3_bg_num_gdb(sb, i);
+ overhead += ext4_bg_has_super(sb, i) +
+ ext4_bg_num_gdb(sb, i);
cond_resched();
}
* Every block group has an inode bitmap, a block
* bitmap, and an inode table.
*/
- overhead += (ngroups * (2 + EXT3_SB(sb)->s_itb_per_group));
+ overhead += (ngroups * (2 + EXT4_SB(sb)->s_itb_per_group));
}
- buf->f_type = EXT3_SUPER_MAGIC;
+ buf->f_type = EXT4_SUPER_MAGIC;
buf->f_bsize = sb->s_blocksize;
buf->f_blocks = le32_to_cpu(es->s_blocks_count) - overhead;
buf->f_bfree = percpu_counter_sum(&sbi->s_freeblocks_counter);
buf->f_bavail = 0;
buf->f_files = le32_to_cpu(es->s_inodes_count);
buf->f_ffree = percpu_counter_sum(&sbi->s_freeinodes_counter);
- buf->f_namelen = EXT3_NAME_LEN;
+ buf->f_namelen = EXT4_NAME_LEN;
return 0;
}
/* Helper function for writing quotas on sync - we need to start transaction before quota file
* is locked for write. Otherwise the are possible deadlocks:
* Process 1 Process 2
- * ext3_create() quota_sync()
+ * ext4_create() quota_sync()
* journal_start() write_dquot()
* DQUOT_INIT() down(dqio_mutex)
* down(dqio_mutex) journal_start()
return sb_dqopt(dquot->dq_sb)->files[dquot->dq_type];
}
-static int ext3_dquot_initialize(struct inode *inode, int type)
+static int ext4_dquot_initialize(struct inode *inode, int type)
{
handle_t *handle;
int ret, err;
/* We may create quota structure so we need to reserve enough blocks */
- handle = ext3_journal_start(inode, 2*EXT3_QUOTA_INIT_BLOCKS(inode->i_sb));
+ handle = ext4_journal_start(inode, 2*EXT4_QUOTA_INIT_BLOCKS(inode->i_sb));
if (IS_ERR(handle))
return PTR_ERR(handle);
ret = dquot_initialize(inode, type);
- err = ext3_journal_stop(handle);
+ err = ext4_journal_stop(handle);
if (!ret)
ret = err;
return ret;
}
-static int ext3_dquot_drop(struct inode *inode)
+static int ext4_dquot_drop(struct inode *inode)
{
handle_t *handle;
int ret, err;
/* We may delete quota structure so we need to reserve enough blocks */
- handle = ext3_journal_start(inode, 2*EXT3_QUOTA_DEL_BLOCKS(inode->i_sb));
+ handle = ext4_journal_start(inode, 2*EXT4_QUOTA_DEL_BLOCKS(inode->i_sb));
if (IS_ERR(handle))
return PTR_ERR(handle);
ret = dquot_drop(inode);
- err = ext3_journal_stop(handle);
+ err = ext4_journal_stop(handle);
if (!ret)
ret = err;
return ret;
}
-static int ext3_write_dquot(struct dquot *dquot)
+static int ext4_write_dquot(struct dquot *dquot)
{
int ret, err;
handle_t *handle;
struct inode *inode;
inode = dquot_to_inode(dquot);
- handle = ext3_journal_start(inode,
- EXT3_QUOTA_TRANS_BLOCKS(dquot->dq_sb));
+ handle = ext4_journal_start(inode,
+ EXT4_QUOTA_TRANS_BLOCKS(dquot->dq_sb));
if (IS_ERR(handle))
return PTR_ERR(handle);
ret = dquot_commit(dquot);
- err = ext3_journal_stop(handle);
+ err = ext4_journal_stop(handle);
if (!ret)
ret = err;
return ret;
}
-static int ext3_acquire_dquot(struct dquot *dquot)
+static int ext4_acquire_dquot(struct dquot *dquot)
{
int ret, err;
handle_t *handle;
- handle = ext3_journal_start(dquot_to_inode(dquot),
- EXT3_QUOTA_INIT_BLOCKS(dquot->dq_sb));
+ handle = ext4_journal_start(dquot_to_inode(dquot),
+ EXT4_QUOTA_INIT_BLOCKS(dquot->dq_sb));
if (IS_ERR(handle))
return PTR_ERR(handle);
ret = dquot_acquire(dquot);
- err = ext3_journal_stop(handle);
+ err = ext4_journal_stop(handle);
if (!ret)
ret = err;
return ret;
}
-static int ext3_release_dquot(struct dquot *dquot)
+static int ext4_release_dquot(struct dquot *dquot)
{
int ret, err;
handle_t *handle;
- handle = ext3_journal_start(dquot_to_inode(dquot),
- EXT3_QUOTA_DEL_BLOCKS(dquot->dq_sb));
+ handle = ext4_journal_start(dquot_to_inode(dquot),
+ EXT4_QUOTA_DEL_BLOCKS(dquot->dq_sb));
if (IS_ERR(handle))
return PTR_ERR(handle);
ret = dquot_release(dquot);
- err = ext3_journal_stop(handle);
+ err = ext4_journal_stop(handle);
if (!ret)
ret = err;
return ret;
}
-static int ext3_mark_dquot_dirty(struct dquot *dquot)
+static int ext4_mark_dquot_dirty(struct dquot *dquot)
{
/* Are we journalling quotas? */
- if (EXT3_SB(dquot->dq_sb)->s_qf_names[USRQUOTA] ||
- EXT3_SB(dquot->dq_sb)->s_qf_names[GRPQUOTA]) {
+ if (EXT4_SB(dquot->dq_sb)->s_qf_names[USRQUOTA] ||
+ EXT4_SB(dquot->dq_sb)->s_qf_names[GRPQUOTA]) {
dquot_mark_dquot_dirty(dquot);
- return ext3_write_dquot(dquot);
+ return ext4_write_dquot(dquot);
} else {
return dquot_mark_dquot_dirty(dquot);
}
}
-static int ext3_write_info(struct super_block *sb, int type)
+static int ext4_write_info(struct super_block *sb, int type)
{
int ret, err;
handle_t *handle;
/* Data block + inode block */
- handle = ext3_journal_start(sb->s_root->d_inode, 2);
+ handle = ext4_journal_start(sb->s_root->d_inode, 2);
if (IS_ERR(handle))
return PTR_ERR(handle);
ret = dquot_commit_info(sb, type);
- err = ext3_journal_stop(handle);
+ err = ext4_journal_stop(handle);
if (!ret)
ret = err;
return ret;
* Turn on quotas during mount time - we need to find
* the quota file and such...
*/
-static int ext3_quota_on_mount(struct super_block *sb, int type)
+static int ext4_quota_on_mount(struct super_block *sb, int type)
{
- return vfs_quota_on_mount(sb, EXT3_SB(sb)->s_qf_names[type],
- EXT3_SB(sb)->s_jquota_fmt, type);
+ return vfs_quota_on_mount(sb, EXT4_SB(sb)->s_qf_names[type],
+ EXT4_SB(sb)->s_jquota_fmt, type);
}
/*
* Standard function to be called on quota_on
*/
-static int ext3_quota_on(struct super_block *sb, int type, int format_id,
+static int ext4_quota_on(struct super_block *sb, int type, int format_id,
char *path)
{
int err;
if (!test_opt(sb, QUOTA))
return -EINVAL;
/* Not journalling quota? */
- if (!EXT3_SB(sb)->s_qf_names[USRQUOTA] &&
- !EXT3_SB(sb)->s_qf_names[GRPQUOTA])
+ if (!EXT4_SB(sb)->s_qf_names[USRQUOTA] &&
+ !EXT4_SB(sb)->s_qf_names[GRPQUOTA])
return vfs_quota_on(sb, type, format_id, path);
err = path_lookup(path, LOOKUP_FOLLOW, &nd);
if (err)
/* Quotafile not of fs root? */
if (nd.dentry->d_parent->d_inode != sb->s_root->d_inode)
printk(KERN_WARNING
- "EXT3-fs: Quota file not on filesystem root. "
+ "EXT4-fs: Quota file not on filesystem root. "
"Journalled quota will not work.\n");
path_release(&nd);
return vfs_quota_on(sb, type, format_id, path);
* acquiring the locks... As quota files are never truncated and quota code
* itself serializes the operations (and noone else should touch the files)
* we don't have to be afraid of races */
-static ssize_t ext3_quota_read(struct super_block *sb, int type, char *data,
+static ssize_t ext4_quota_read(struct super_block *sb, int type, char *data,
size_t len, loff_t off)
{
struct inode *inode = sb_dqopt(sb)->files[type];
- sector_t blk = off >> EXT3_BLOCK_SIZE_BITS(sb);
+ sector_t blk = off >> EXT4_BLOCK_SIZE_BITS(sb);
int err = 0;
int offset = off & (sb->s_blocksize - 1);
int tocopy;
while (toread > 0) {
tocopy = sb->s_blocksize - offset < toread ?
sb->s_blocksize - offset : toread;
- bh = ext3_bread(NULL, inode, blk, 0, &err);
+ bh = ext4_bread(NULL, inode, blk, 0, &err);
if (err)
return err;
if (!bh) /* A hole? */
/* Write to quotafile (we know the transaction is already started and has
* enough credits) */
-static ssize_t ext3_quota_write(struct super_block *sb, int type,
+static ssize_t ext4_quota_write(struct super_block *sb, int type,
const char *data, size_t len, loff_t off)
{
struct inode *inode = sb_dqopt(sb)->files[type];
- sector_t blk = off >> EXT3_BLOCK_SIZE_BITS(sb);
+ sector_t blk = off >> EXT4_BLOCK_SIZE_BITS(sb);
int err = 0;
int offset = off & (sb->s_blocksize - 1);
int tocopy;
- int journal_quota = EXT3_SB(sb)->s_qf_names[type] != NULL;
+ int journal_quota = EXT4_SB(sb)->s_qf_names[type] != NULL;
size_t towrite = len;
struct buffer_head *bh;
handle_t *handle = journal_current_handle();
while (towrite > 0) {
tocopy = sb->s_blocksize - offset < towrite ?
sb->s_blocksize - offset : towrite;
- bh = ext3_bread(handle, inode, blk, 1, &err);
+ bh = ext4_bread(handle, inode, blk, 1, &err);
if (!bh)
goto out;
if (journal_quota) {
- err = ext3_journal_get_write_access(handle, bh);
+ err = ext4_journal_get_write_access(handle, bh);
if (err) {
brelse(bh);
goto out;
flush_dcache_page(bh->b_page);
unlock_buffer(bh);
if (journal_quota)
- err = ext3_journal_dirty_metadata(handle, bh);
+ err = ext4_journal_dirty_metadata(handle, bh);
else {
/* Always do at least ordered writes for quotas */
- err = ext3_journal_dirty_data(handle, bh);
+ err = ext4_journal_dirty_data(handle, bh);
mark_buffer_dirty(bh);
}
brelse(bh);
return err;
if (inode->i_size < off+len-towrite) {
i_size_write(inode, off+len-towrite);
- EXT3_I(inode)->i_disksize = inode->i_size;
+ EXT4_I(inode)->i_disksize = inode->i_size;
}
inode->i_version++;
inode->i_mtime = inode->i_ctime = CURRENT_TIME;
- ext3_mark_inode_dirty(handle, inode);
+ ext4_mark_inode_dirty(handle, inode);
mutex_unlock(&inode->i_mutex);
return len - towrite;
}
#endif
-static int ext3_get_sb(struct file_system_type *fs_type,
+static int ext4_get_sb(struct file_system_type *fs_type,
int flags, const char *dev_name, void *data, struct vfsmount *mnt)
{
- return get_sb_bdev(fs_type, flags, dev_name, data, ext3_fill_super, mnt);
+ return get_sb_bdev(fs_type, flags, dev_name, data, ext4_fill_super, mnt);
}
-static struct file_system_type ext3_fs_type = {
+static struct file_system_type ext4dev_fs_type = {
.owner = THIS_MODULE,
- .name = "ext3",
- .get_sb = ext3_get_sb,
+ .name = "ext4dev",
+ .get_sb = ext4_get_sb,
.kill_sb = kill_block_super,
.fs_flags = FS_REQUIRES_DEV,
};
-static int __init init_ext3_fs(void)
+static int __init init_ext4_fs(void)
{
- int err = init_ext3_xattr();
+ int err = init_ext4_xattr();
if (err)
return err;
err = init_inodecache();
if (err)
goto out1;
- err = register_filesystem(&ext3_fs_type);
+ err = register_filesystem(&ext4dev_fs_type);
if (err)
goto out;
return 0;
out:
destroy_inodecache();
out1:
- exit_ext3_xattr();
+ exit_ext4_xattr();
return err;
}
-static void __exit exit_ext3_fs(void)
+static void __exit exit_ext4_fs(void)
{
- unregister_filesystem(&ext3_fs_type);
+ unregister_filesystem(&ext4dev_fs_type);
destroy_inodecache();
- exit_ext3_xattr();
+ exit_ext4_xattr();
}
MODULE_AUTHOR("Remy Card, Stephen Tweedie, Andrew Morton, Andreas Dilger, Theodore Ts'o and others");
-MODULE_DESCRIPTION("Second Extended Filesystem with journaling extensions");
+MODULE_DESCRIPTION("Fourth Extended Filesystem with extents");
MODULE_LICENSE("GPL");
-module_init(init_ext3_fs)
-module_exit(exit_ext3_fs)
+module_init(init_ext4_fs)
+module_exit(exit_ext4_fs)
/*
- * linux/fs/ext3/symlink.c
+ * linux/fs/ext4/symlink.c
*
* Only fast symlinks left here - the rest is done by generic code. AV, 1999
*
*
* Copyright (C) 1991, 1992 Linus Torvalds
*
- * ext3 symlink handling code
+ * ext4 symlink handling code
*/
#include <linux/fs.h>
#include <linux/jbd.h>
-#include <linux/ext3_fs.h>
+#include <linux/ext4_fs.h>
#include <linux/namei.h>
#include "xattr.h"
-static void * ext3_follow_link(struct dentry *dentry, struct nameidata *nd)
+static void * ext4_follow_link(struct dentry *dentry, struct nameidata *nd)
{
- struct ext3_inode_info *ei = EXT3_I(dentry->d_inode);
+ struct ext4_inode_info *ei = EXT4_I(dentry->d_inode);
nd_set_link(nd, (char*)ei->i_data);
return NULL;
}
-struct inode_operations ext3_symlink_inode_operations = {
+struct inode_operations ext4_symlink_inode_operations = {
.readlink = generic_readlink,
.follow_link = page_follow_link_light,
.put_link = page_put_link,
-#ifdef CONFIG_EXT3_FS_XATTR
+#ifdef CONFIG_EXT4DEV_FS_XATTR
.setxattr = generic_setxattr,
.getxattr = generic_getxattr,
- .listxattr = ext3_listxattr,
+ .listxattr = ext4_listxattr,
.removexattr = generic_removexattr,
#endif
};
-struct inode_operations ext3_fast_symlink_inode_operations = {
+struct inode_operations ext4_fast_symlink_inode_operations = {
.readlink = generic_readlink,
- .follow_link = ext3_follow_link,
-#ifdef CONFIG_EXT3_FS_XATTR
+ .follow_link = ext4_follow_link,
+#ifdef CONFIG_EXT4DEV_FS_XATTR
.setxattr = generic_setxattr,
.getxattr = generic_getxattr,
- .listxattr = ext3_listxattr,
+ .listxattr = ext4_listxattr,
.removexattr = generic_removexattr,
#endif
};
/*
- * linux/fs/ext3/xattr.c
+ * linux/fs/ext4/xattr.c
*
* Copyright (C) 2001-2003 Andreas Gruenbacher, <agruen@suse.de>
*
* Fix by Harrison Xing <harrison@mountainviewdata.com>.
- * Ext3 code with a lot of help from Eric Jarman <ejarman@acm.org>.
+ * Ext4 code with a lot of help from Eric Jarman <ejarman@acm.org>.
* Extended attributes for symlinks and special files added per
* suggestion of Luka Renko <luka.renko@hermes.si>.
* xattr consolidation Copyright (c) 2004 James Morris <jmorris@redhat.com>,
*
* Locking strategy
* ----------------
- * EXT3_I(inode)->i_file_acl is protected by EXT3_I(inode)->xattr_sem.
+ * EXT4_I(inode)->i_file_acl is protected by EXT4_I(inode)->xattr_sem.
* EA blocks are only changed if they are exclusive to an inode, so
* holding xattr_sem also means that nothing but the EA block's reference
* count can change. Multiple writers to the same block are synchronized
#include <linux/init.h>
#include <linux/fs.h>
#include <linux/slab.h>
-#include <linux/ext3_jbd.h>
-#include <linux/ext3_fs.h>
+#include <linux/ext4_jbd.h>
+#include <linux/ext4_fs.h>
#include <linux/mbcache.h>
#include <linux/quotaops.h>
#include <linux/rwsem.h>
#include "xattr.h"
#include "acl.h"
-#define BHDR(bh) ((struct ext3_xattr_header *)((bh)->b_data))
-#define ENTRY(ptr) ((struct ext3_xattr_entry *)(ptr))
+#define BHDR(bh) ((struct ext4_xattr_header *)((bh)->b_data))
+#define ENTRY(ptr) ((struct ext4_xattr_entry *)(ptr))
#define BFIRST(bh) ENTRY(BHDR(bh)+1)
#define IS_LAST_ENTRY(entry) (*(__u32 *)(entry) == 0)
#define IHDR(inode, raw_inode) \
- ((struct ext3_xattr_ibody_header *) \
+ ((struct ext4_xattr_ibody_header *) \
((void *)raw_inode + \
- EXT3_GOOD_OLD_INODE_SIZE + \
- EXT3_I(inode)->i_extra_isize))
-#define IFIRST(hdr) ((struct ext3_xattr_entry *)((hdr)+1))
+ EXT4_GOOD_OLD_INODE_SIZE + \
+ EXT4_I(inode)->i_extra_isize))
+#define IFIRST(hdr) ((struct ext4_xattr_entry *)((hdr)+1))
-#ifdef EXT3_XATTR_DEBUG
+#ifdef EXT4_XATTR_DEBUG
# define ea_idebug(inode, f...) do { \
printk(KERN_DEBUG "inode %s:%lu: ", \
inode->i_sb->s_id, inode->i_ino); \
# define ea_bdebug(f...)
#endif
-static void ext3_xattr_cache_insert(struct buffer_head *);
-static struct buffer_head *ext3_xattr_cache_find(struct inode *,
- struct ext3_xattr_header *,
+static void ext4_xattr_cache_insert(struct buffer_head *);
+static struct buffer_head *ext4_xattr_cache_find(struct inode *,
+ struct ext4_xattr_header *,
struct mb_cache_entry **);
-static void ext3_xattr_rehash(struct ext3_xattr_header *,
- struct ext3_xattr_entry *);
+static void ext4_xattr_rehash(struct ext4_xattr_header *,
+ struct ext4_xattr_entry *);
-static struct mb_cache *ext3_xattr_cache;
+static struct mb_cache *ext4_xattr_cache;
-static struct xattr_handler *ext3_xattr_handler_map[] = {
- [EXT3_XATTR_INDEX_USER] = &ext3_xattr_user_handler,
-#ifdef CONFIG_EXT3_FS_POSIX_ACL
- [EXT3_XATTR_INDEX_POSIX_ACL_ACCESS] = &ext3_xattr_acl_access_handler,
- [EXT3_XATTR_INDEX_POSIX_ACL_DEFAULT] = &ext3_xattr_acl_default_handler,
+static struct xattr_handler *ext4_xattr_handler_map[] = {
+ [EXT4_XATTR_INDEX_USER] = &ext4_xattr_user_handler,
+#ifdef CONFIG_EXT4DEV_FS_POSIX_ACL
+ [EXT4_XATTR_INDEX_POSIX_ACL_ACCESS] = &ext4_xattr_acl_access_handler,
+ [EXT4_XATTR_INDEX_POSIX_ACL_DEFAULT] = &ext4_xattr_acl_default_handler,
#endif
- [EXT3_XATTR_INDEX_TRUSTED] = &ext3_xattr_trusted_handler,
-#ifdef CONFIG_EXT3_FS_SECURITY
- [EXT3_XATTR_INDEX_SECURITY] = &ext3_xattr_security_handler,
+ [EXT4_XATTR_INDEX_TRUSTED] = &ext4_xattr_trusted_handler,
+#ifdef CONFIG_EXT4DEV_FS_SECURITY
+ [EXT4_XATTR_INDEX_SECURITY] = &ext4_xattr_security_handler,
#endif
};
-struct xattr_handler *ext3_xattr_handlers[] = {
- &ext3_xattr_user_handler,
- &ext3_xattr_trusted_handler,
-#ifdef CONFIG_EXT3_FS_POSIX_ACL
- &ext3_xattr_acl_access_handler,
- &ext3_xattr_acl_default_handler,
+struct xattr_handler *ext4_xattr_handlers[] = {
+ &ext4_xattr_user_handler,
+ &ext4_xattr_trusted_handler,
+#ifdef CONFIG_EXT4DEV_FS_POSIX_ACL
+ &ext4_xattr_acl_access_handler,
+ &ext4_xattr_acl_default_handler,
#endif
-#ifdef CONFIG_EXT3_FS_SECURITY
- &ext3_xattr_security_handler,
+#ifdef CONFIG_EXT4DEV_FS_SECURITY
+ &ext4_xattr_security_handler,
#endif
NULL
};
static inline struct xattr_handler *
-ext3_xattr_handler(int name_index)
+ext4_xattr_handler(int name_index)
{
struct xattr_handler *handler = NULL;
- if (name_index > 0 && name_index < ARRAY_SIZE(ext3_xattr_handler_map))
- handler = ext3_xattr_handler_map[name_index];
+ if (name_index > 0 && name_index < ARRAY_SIZE(ext4_xattr_handler_map))
+ handler = ext4_xattr_handler_map[name_index];
return handler;
}
* dentry->d_inode->i_mutex: don't care
*/
ssize_t
-ext3_listxattr(struct dentry *dentry, char *buffer, size_t size)
+ext4_listxattr(struct dentry *dentry, char *buffer, size_t size)
{
- return ext3_xattr_list(dentry->d_inode, buffer, size);
+ return ext4_xattr_list(dentry->d_inode, buffer, size);
}
static int
-ext3_xattr_check_names(struct ext3_xattr_entry *entry, void *end)
+ext4_xattr_check_names(struct ext4_xattr_entry *entry, void *end)
{
while (!IS_LAST_ENTRY(entry)) {
- struct ext3_xattr_entry *next = EXT3_XATTR_NEXT(entry);
+ struct ext4_xattr_entry *next = EXT4_XATTR_NEXT(entry);
if ((void *)next >= end)
return -EIO;
entry = next;
}
static inline int
-ext3_xattr_check_block(struct buffer_head *bh)
+ext4_xattr_check_block(struct buffer_head *bh)
{
int error;
- if (BHDR(bh)->h_magic != cpu_to_le32(EXT3_XATTR_MAGIC) ||
+ if (BHDR(bh)->h_magic != cpu_to_le32(EXT4_XATTR_MAGIC) ||
BHDR(bh)->h_blocks != cpu_to_le32(1))
return -EIO;
- error = ext3_xattr_check_names(BFIRST(bh), bh->b_data + bh->b_size);
+ error = ext4_xattr_check_names(BFIRST(bh), bh->b_data + bh->b_size);
return error;
}
static inline int
-ext3_xattr_check_entry(struct ext3_xattr_entry *entry, size_t size)
+ext4_xattr_check_entry(struct ext4_xattr_entry *entry, size_t size)
{
size_t value_size = le32_to_cpu(entry->e_value_size);
}
static int
-ext3_xattr_find_entry(struct ext3_xattr_entry **pentry, int name_index,
+ext4_xattr_find_entry(struct ext4_xattr_entry **pentry, int name_index,
const char *name, size_t size, int sorted)
{
- struct ext3_xattr_entry *entry;
+ struct ext4_xattr_entry *entry;
size_t name_len;
int cmp = 1;
return -EINVAL;
name_len = strlen(name);
entry = *pentry;
- for (; !IS_LAST_ENTRY(entry); entry = EXT3_XATTR_NEXT(entry)) {
+ for (; !IS_LAST_ENTRY(entry); entry = EXT4_XATTR_NEXT(entry)) {
cmp = name_index - entry->e_name_index;
if (!cmp)
cmp = name_len - entry->e_name_len;
break;
}
*pentry = entry;
- if (!cmp && ext3_xattr_check_entry(entry, size))
+ if (!cmp && ext4_xattr_check_entry(entry, size))
return -EIO;
return cmp ? -ENODATA : 0;
}
static int
-ext3_xattr_block_get(struct inode *inode, int name_index, const char *name,
+ext4_xattr_block_get(struct inode *inode, int name_index, const char *name,
void *buffer, size_t buffer_size)
{
struct buffer_head *bh = NULL;
- struct ext3_xattr_entry *entry;
+ struct ext4_xattr_entry *entry;
size_t size;
int error;
name_index, name, buffer, (long)buffer_size);
error = -ENODATA;
- if (!EXT3_I(inode)->i_file_acl)
+ if (!EXT4_I(inode)->i_file_acl)
goto cleanup;
- ea_idebug(inode, "reading block %u", EXT3_I(inode)->i_file_acl);
- bh = sb_bread(inode->i_sb, EXT3_I(inode)->i_file_acl);
+ ea_idebug(inode, "reading block %u", EXT4_I(inode)->i_file_acl);
+ bh = sb_bread(inode->i_sb, EXT4_I(inode)->i_file_acl);
if (!bh)
goto cleanup;
ea_bdebug(bh, "b_count=%d, refcount=%d",
atomic_read(&(bh->b_count)), le32_to_cpu(BHDR(bh)->h_refcount));
- if (ext3_xattr_check_block(bh)) {
-bad_block: ext3_error(inode->i_sb, __FUNCTION__,
+ if (ext4_xattr_check_block(bh)) {
+bad_block: ext4_error(inode->i_sb, __FUNCTION__,
"inode %lu: bad block "E3FSBLK, inode->i_ino,
- EXT3_I(inode)->i_file_acl);
+ EXT4_I(inode)->i_file_acl);
error = -EIO;
goto cleanup;
}
- ext3_xattr_cache_insert(bh);
+ ext4_xattr_cache_insert(bh);
entry = BFIRST(bh);
- error = ext3_xattr_find_entry(&entry, name_index, name, bh->b_size, 1);
+ error = ext4_xattr_find_entry(&entry, name_index, name, bh->b_size, 1);
if (error == -EIO)
goto bad_block;
if (error)
}
static int
-ext3_xattr_ibody_get(struct inode *inode, int name_index, const char *name,
+ext4_xattr_ibody_get(struct inode *inode, int name_index, const char *name,
void *buffer, size_t buffer_size)
{
- struct ext3_xattr_ibody_header *header;
- struct ext3_xattr_entry *entry;
- struct ext3_inode *raw_inode;
- struct ext3_iloc iloc;
+ struct ext4_xattr_ibody_header *header;
+ struct ext4_xattr_entry *entry;
+ struct ext4_inode *raw_inode;
+ struct ext4_iloc iloc;
size_t size;
void *end;
int error;
- if (!(EXT3_I(inode)->i_state & EXT3_STATE_XATTR))
+ if (!(EXT4_I(inode)->i_state & EXT4_STATE_XATTR))
return -ENODATA;
- error = ext3_get_inode_loc(inode, &iloc);
+ error = ext4_get_inode_loc(inode, &iloc);
if (error)
return error;
- raw_inode = ext3_raw_inode(&iloc);
+ raw_inode = ext4_raw_inode(&iloc);
header = IHDR(inode, raw_inode);
entry = IFIRST(header);
- end = (void *)raw_inode + EXT3_SB(inode->i_sb)->s_inode_size;
- error = ext3_xattr_check_names(entry, end);
+ end = (void *)raw_inode + EXT4_SB(inode->i_sb)->s_inode_size;
+ error = ext4_xattr_check_names(entry, end);
if (error)
goto cleanup;
- error = ext3_xattr_find_entry(&entry, name_index, name,
+ error = ext4_xattr_find_entry(&entry, name_index, name,
end - (void *)entry, 0);
if (error)
goto cleanup;
}
/*
- * ext3_xattr_get()
+ * ext4_xattr_get()
*
* Copy an extended attribute into the buffer
* provided, or compute the buffer size required.
* used / required on success.
*/
int
-ext3_xattr_get(struct inode *inode, int name_index, const char *name,
+ext4_xattr_get(struct inode *inode, int name_index, const char *name,
void *buffer, size_t buffer_size)
{
int error;
- down_read(&EXT3_I(inode)->xattr_sem);
- error = ext3_xattr_ibody_get(inode, name_index, name, buffer,
+ down_read(&EXT4_I(inode)->xattr_sem);
+ error = ext4_xattr_ibody_get(inode, name_index, name, buffer,
buffer_size);
if (error == -ENODATA)
- error = ext3_xattr_block_get(inode, name_index, name, buffer,
+ error = ext4_xattr_block_get(inode, name_index, name, buffer,
buffer_size);
- up_read(&EXT3_I(inode)->xattr_sem);
+ up_read(&EXT4_I(inode)->xattr_sem);
return error;
}
static int
-ext3_xattr_list_entries(struct inode *inode, struct ext3_xattr_entry *entry,
+ext4_xattr_list_entries(struct inode *inode, struct ext4_xattr_entry *entry,
char *buffer, size_t buffer_size)
{
size_t rest = buffer_size;
- for (; !IS_LAST_ENTRY(entry); entry = EXT3_XATTR_NEXT(entry)) {
+ for (; !IS_LAST_ENTRY(entry); entry = EXT4_XATTR_NEXT(entry)) {
struct xattr_handler *handler =
- ext3_xattr_handler(entry->e_name_index);
+ ext4_xattr_handler(entry->e_name_index);
if (handler) {
size_t size = handler->list(inode, buffer, rest,
}
static int
-ext3_xattr_block_list(struct inode *inode, char *buffer, size_t buffer_size)
+ext4_xattr_block_list(struct inode *inode, char *buffer, size_t buffer_size)
{
struct buffer_head *bh = NULL;
int error;
buffer, (long)buffer_size);
error = 0;
- if (!EXT3_I(inode)->i_file_acl)
+ if (!EXT4_I(inode)->i_file_acl)
goto cleanup;
- ea_idebug(inode, "reading block %u", EXT3_I(inode)->i_file_acl);
- bh = sb_bread(inode->i_sb, EXT3_I(inode)->i_file_acl);
+ ea_idebug(inode, "reading block %u", EXT4_I(inode)->i_file_acl);
+ bh = sb_bread(inode->i_sb, EXT4_I(inode)->i_file_acl);
error = -EIO;
if (!bh)
goto cleanup;
ea_bdebug(bh, "b_count=%d, refcount=%d",
atomic_read(&(bh->b_count)), le32_to_cpu(BHDR(bh)->h_refcount));
- if (ext3_xattr_check_block(bh)) {
- ext3_error(inode->i_sb, __FUNCTION__,
+ if (ext4_xattr_check_block(bh)) {
+ ext4_error(inode->i_sb, __FUNCTION__,
"inode %lu: bad block "E3FSBLK, inode->i_ino,
- EXT3_I(inode)->i_file_acl);
+ EXT4_I(inode)->i_file_acl);
error = -EIO;
goto cleanup;
}
- ext3_xattr_cache_insert(bh);
- error = ext3_xattr_list_entries(inode, BFIRST(bh), buffer, buffer_size);
+ ext4_xattr_cache_insert(bh);
+ error = ext4_xattr_list_entries(inode, BFIRST(bh), buffer, buffer_size);
cleanup:
brelse(bh);
}
static int
-ext3_xattr_ibody_list(struct inode *inode, char *buffer, size_t buffer_size)
+ext4_xattr_ibody_list(struct inode *inode, char *buffer, size_t buffer_size)
{
- struct ext3_xattr_ibody_header *header;
- struct ext3_inode *raw_inode;
- struct ext3_iloc iloc;
+ struct ext4_xattr_ibody_header *header;
+ struct ext4_inode *raw_inode;
+ struct ext4_iloc iloc;
void *end;
int error;
- if (!(EXT3_I(inode)->i_state & EXT3_STATE_XATTR))
+ if (!(EXT4_I(inode)->i_state & EXT4_STATE_XATTR))
return 0;
- error = ext3_get_inode_loc(inode, &iloc);
+ error = ext4_get_inode_loc(inode, &iloc);
if (error)
return error;
- raw_inode = ext3_raw_inode(&iloc);
+ raw_inode = ext4_raw_inode(&iloc);
header = IHDR(inode, raw_inode);
- end = (void *)raw_inode + EXT3_SB(inode->i_sb)->s_inode_size;
- error = ext3_xattr_check_names(IFIRST(header), end);
+ end = (void *)raw_inode + EXT4_SB(inode->i_sb)->s_inode_size;
+ error = ext4_xattr_check_names(IFIRST(header), end);
if (error)
goto cleanup;
- error = ext3_xattr_list_entries(inode, IFIRST(header),
+ error = ext4_xattr_list_entries(inode, IFIRST(header),
buffer, buffer_size);
cleanup:
}
/*
- * ext3_xattr_list()
+ * ext4_xattr_list()
*
* Copy a list of attribute names into the buffer
* provided, or compute the buffer size required.
* used / required on success.
*/
int
-ext3_xattr_list(struct inode *inode, char *buffer, size_t buffer_size)
+ext4_xattr_list(struct inode *inode, char *buffer, size_t buffer_size)
{
int i_error, b_error;
- down_read(&EXT3_I(inode)->xattr_sem);
- i_error = ext3_xattr_ibody_list(inode, buffer, buffer_size);
+ down_read(&EXT4_I(inode)->xattr_sem);
+ i_error = ext4_xattr_ibody_list(inode, buffer, buffer_size);
if (i_error < 0) {
b_error = 0;
} else {
buffer += i_error;
buffer_size -= i_error;
}
- b_error = ext3_xattr_block_list(inode, buffer, buffer_size);
+ b_error = ext4_xattr_block_list(inode, buffer, buffer_size);
if (b_error < 0)
i_error = 0;
}
- up_read(&EXT3_I(inode)->xattr_sem);
+ up_read(&EXT4_I(inode)->xattr_sem);
return i_error + b_error;
}
/*
- * If the EXT3_FEATURE_COMPAT_EXT_ATTR feature of this file system is
+ * If the EXT4_FEATURE_COMPAT_EXT_ATTR feature of this file system is
* not set, set it.
*/
-static void ext3_xattr_update_super_block(handle_t *handle,
+static void ext4_xattr_update_super_block(handle_t *handle,
struct super_block *sb)
{
- if (EXT3_HAS_COMPAT_FEATURE(sb, EXT3_FEATURE_COMPAT_EXT_ATTR))
+ if (EXT4_HAS_COMPAT_FEATURE(sb, EXT4_FEATURE_COMPAT_EXT_ATTR))
return;
lock_super(sb);
- if (ext3_journal_get_write_access(handle, EXT3_SB(sb)->s_sbh) == 0) {
- EXT3_SB(sb)->s_es->s_feature_compat |=
- cpu_to_le32(EXT3_FEATURE_COMPAT_EXT_ATTR);
+ if (ext4_journal_get_write_access(handle, EXT4_SB(sb)->s_sbh) == 0) {
+ EXT4_SB(sb)->s_es->s_feature_compat |=
+ cpu_to_le32(EXT4_FEATURE_COMPAT_EXT_ATTR);
sb->s_dirt = 1;
- ext3_journal_dirty_metadata(handle, EXT3_SB(sb)->s_sbh);
+ ext4_journal_dirty_metadata(handle, EXT4_SB(sb)->s_sbh);
}
unlock_super(sb);
}
* it; otherwise free the block.
*/
static void
-ext3_xattr_release_block(handle_t *handle, struct inode *inode,
+ext4_xattr_release_block(handle_t *handle, struct inode *inode,
struct buffer_head *bh)
{
struct mb_cache_entry *ce = NULL;
- ce = mb_cache_entry_get(ext3_xattr_cache, bh->b_bdev, bh->b_blocknr);
+ ce = mb_cache_entry_get(ext4_xattr_cache, bh->b_bdev, bh->b_blocknr);
if (BHDR(bh)->h_refcount == cpu_to_le32(1)) {
ea_bdebug(bh, "refcount now=0; freeing");
if (ce)
mb_cache_entry_free(ce);
- ext3_free_blocks(handle, inode, bh->b_blocknr, 1);
+ ext4_free_blocks(handle, inode, bh->b_blocknr, 1);
get_bh(bh);
- ext3_forget(handle, 1, inode, bh, bh->b_blocknr);
+ ext4_forget(handle, 1, inode, bh, bh->b_blocknr);
} else {
- if (ext3_journal_get_write_access(handle, bh) == 0) {
+ if (ext4_journal_get_write_access(handle, bh) == 0) {
lock_buffer(bh);
BHDR(bh)->h_refcount = cpu_to_le32(
le32_to_cpu(BHDR(bh)->h_refcount) - 1);
- ext3_journal_dirty_metadata(handle, bh);
+ ext4_journal_dirty_metadata(handle, bh);
if (IS_SYNC(inode))
handle->h_sync = 1;
DQUOT_FREE_BLOCK(inode, 1);
}
}
-struct ext3_xattr_info {
+struct ext4_xattr_info {
int name_index;
const char *name;
const void *value;
size_t value_len;
};
-struct ext3_xattr_search {
- struct ext3_xattr_entry *first;
+struct ext4_xattr_search {
+ struct ext4_xattr_entry *first;
void *base;
void *end;
- struct ext3_xattr_entry *here;
+ struct ext4_xattr_entry *here;
int not_found;
};
static int
-ext3_xattr_set_entry(struct ext3_xattr_info *i, struct ext3_xattr_search *s)
+ext4_xattr_set_entry(struct ext4_xattr_info *i, struct ext4_xattr_search *s)
{
- struct ext3_xattr_entry *last;
+ struct ext4_xattr_entry *last;
size_t free, min_offs = s->end - s->base, name_len = strlen(i->name);
/* Compute min_offs and last. */
last = s->first;
- for (; !IS_LAST_ENTRY(last); last = EXT3_XATTR_NEXT(last)) {
+ for (; !IS_LAST_ENTRY(last); last = EXT4_XATTR_NEXT(last)) {
if (!last->e_value_block && last->e_value_size) {
size_t offs = le16_to_cpu(last->e_value_offs);
if (offs < min_offs)
if (!s->not_found) {
if (!s->here->e_value_block && s->here->e_value_size) {
size_t size = le32_to_cpu(s->here->e_value_size);
- free += EXT3_XATTR_SIZE(size);
+ free += EXT4_XATTR_SIZE(size);
}
- free += EXT3_XATTR_LEN(name_len);
+ free += EXT4_XATTR_LEN(name_len);
}
if (i->value) {
- if (free < EXT3_XATTR_SIZE(i->value_len) ||
- free < EXT3_XATTR_LEN(name_len) +
- EXT3_XATTR_SIZE(i->value_len))
+ if (free < EXT4_XATTR_SIZE(i->value_len) ||
+ free < EXT4_XATTR_LEN(name_len) +
+ EXT4_XATTR_SIZE(i->value_len))
return -ENOSPC;
}
if (i->value && s->not_found) {
/* Insert the new name. */
- size_t size = EXT3_XATTR_LEN(name_len);
+ size_t size = EXT4_XATTR_LEN(name_len);
size_t rest = (void *)last - (void *)s->here + sizeof(__u32);
memmove((void *)s->here + size, s->here, rest);
memset(s->here, 0, size);
void *first_val = s->base + min_offs;
size_t offs = le16_to_cpu(s->here->e_value_offs);
void *val = s->base + offs;
- size_t size = EXT3_XATTR_SIZE(
+ size_t size = EXT4_XATTR_SIZE(
le32_to_cpu(s->here->e_value_size));
- if (i->value && size == EXT3_XATTR_SIZE(i->value_len)) {
+ if (i->value && size == EXT4_XATTR_SIZE(i->value_len)) {
/* The old and the new value have the same
size. Just replace. */
s->here->e_value_size =
cpu_to_le32(i->value_len);
- memset(val + size - EXT3_XATTR_PAD, 0,
- EXT3_XATTR_PAD); /* Clear pad bytes. */
+ memset(val + size - EXT4_XATTR_PAD, 0,
+ EXT4_XATTR_PAD); /* Clear pad bytes. */
memcpy(val, i->value, i->value_len);
return 0;
}
last->e_value_size && o < offs)
last->e_value_offs =
cpu_to_le16(o + size);
- last = EXT3_XATTR_NEXT(last);
+ last = EXT4_XATTR_NEXT(last);
}
}
if (!i->value) {
/* Remove the old name. */
- size_t size = EXT3_XATTR_LEN(name_len);
+ size_t size = EXT4_XATTR_LEN(name_len);
last = ENTRY((void *)last - size);
memmove(s->here, (void *)s->here + size,
(void *)last - (void *)s->here + sizeof(__u32));
/* Insert the new value. */
s->here->e_value_size = cpu_to_le32(i->value_len);
if (i->value_len) {
- size_t size = EXT3_XATTR_SIZE(i->value_len);
+ size_t size = EXT4_XATTR_SIZE(i->value_len);
void *val = s->base + min_offs - size;
s->here->e_value_offs = cpu_to_le16(min_offs - size);
- memset(val + size - EXT3_XATTR_PAD, 0,
- EXT3_XATTR_PAD); /* Clear the pad bytes. */
+ memset(val + size - EXT4_XATTR_PAD, 0,
+ EXT4_XATTR_PAD); /* Clear the pad bytes. */
memcpy(val, i->value, i->value_len);
}
}
return 0;
}
-struct ext3_xattr_block_find {
- struct ext3_xattr_search s;
+struct ext4_xattr_block_find {
+ struct ext4_xattr_search s;
struct buffer_head *bh;
};
static int
-ext3_xattr_block_find(struct inode *inode, struct ext3_xattr_info *i,
- struct ext3_xattr_block_find *bs)
+ext4_xattr_block_find(struct inode *inode, struct ext4_xattr_info *i,
+ struct ext4_xattr_block_find *bs)
{
struct super_block *sb = inode->i_sb;
int error;
ea_idebug(inode, "name=%d.%s, value=%p, value_len=%ld",
i->name_index, i->name, i->value, (long)i->value_len);
- if (EXT3_I(inode)->i_file_acl) {
+ if (EXT4_I(inode)->i_file_acl) {
/* The inode already has an extended attribute block. */
- bs->bh = sb_bread(sb, EXT3_I(inode)->i_file_acl);
+ bs->bh = sb_bread(sb, EXT4_I(inode)->i_file_acl);
error = -EIO;
if (!bs->bh)
goto cleanup;
ea_bdebug(bs->bh, "b_count=%d, refcount=%d",
atomic_read(&(bs->bh->b_count)),
le32_to_cpu(BHDR(bs->bh)->h_refcount));
- if (ext3_xattr_check_block(bs->bh)) {
- ext3_error(sb, __FUNCTION__,
+ if (ext4_xattr_check_block(bs->bh)) {
+ ext4_error(sb, __FUNCTION__,
"inode %lu: bad block "E3FSBLK, inode->i_ino,
- EXT3_I(inode)->i_file_acl);
+ EXT4_I(inode)->i_file_acl);
error = -EIO;
goto cleanup;
}
bs->s.first = BFIRST(bs->bh);
bs->s.end = bs->bh->b_data + bs->bh->b_size;
bs->s.here = bs->s.first;
- error = ext3_xattr_find_entry(&bs->s.here, i->name_index,
+ error = ext4_xattr_find_entry(&bs->s.here, i->name_index,
i->name, bs->bh->b_size, 1);
if (error && error != -ENODATA)
goto cleanup;
}
static int
-ext3_xattr_block_set(handle_t *handle, struct inode *inode,
- struct ext3_xattr_info *i,
- struct ext3_xattr_block_find *bs)
+ext4_xattr_block_set(handle_t *handle, struct inode *inode,
+ struct ext4_xattr_info *i,
+ struct ext4_xattr_block_find *bs)
{
struct super_block *sb = inode->i_sb;
struct buffer_head *new_bh = NULL;
- struct ext3_xattr_search *s = &bs->s;
+ struct ext4_xattr_search *s = &bs->s;
struct mb_cache_entry *ce = NULL;
int error;
-#define header(x) ((struct ext3_xattr_header *)(x))
+#define header(x) ((struct ext4_xattr_header *)(x))
if (i->value && i->value_len > sb->s_blocksize)
return -ENOSPC;
if (s->base) {
- ce = mb_cache_entry_get(ext3_xattr_cache, bs->bh->b_bdev,
+ ce = mb_cache_entry_get(ext4_xattr_cache, bs->bh->b_bdev,
bs->bh->b_blocknr);
if (header(s->base)->h_refcount == cpu_to_le32(1)) {
if (ce) {
ce = NULL;
}
ea_bdebug(bs->bh, "modifying in-place");
- error = ext3_journal_get_write_access(handle, bs->bh);
+ error = ext4_journal_get_write_access(handle, bs->bh);
if (error)
goto cleanup;
lock_buffer(bs->bh);
- error = ext3_xattr_set_entry(i, s);
+ error = ext4_xattr_set_entry(i, s);
if (!error) {
if (!IS_LAST_ENTRY(s->first))
- ext3_xattr_rehash(header(s->base),
+ ext4_xattr_rehash(header(s->base),
s->here);
- ext3_xattr_cache_insert(bs->bh);
+ ext4_xattr_cache_insert(bs->bh);
}
unlock_buffer(bs->bh);
if (error == -EIO)
goto bad_block;
if (!error)
- error = ext3_journal_dirty_metadata(handle,
+ error = ext4_journal_dirty_metadata(handle,
bs->bh);
if (error)
goto cleanup;
if (s->base == NULL)
goto cleanup;
memset(s->base, 0, sb->s_blocksize);
- header(s->base)->h_magic = cpu_to_le32(EXT3_XATTR_MAGIC);
+ header(s->base)->h_magic = cpu_to_le32(EXT4_XATTR_MAGIC);
header(s->base)->h_blocks = cpu_to_le32(1);
header(s->base)->h_refcount = cpu_to_le32(1);
s->first = ENTRY(header(s->base)+1);
s->end = s->base + sb->s_blocksize;
}
- error = ext3_xattr_set_entry(i, s);
+ error = ext4_xattr_set_entry(i, s);
if (error == -EIO)
goto bad_block;
if (error)
goto cleanup;
if (!IS_LAST_ENTRY(s->first))
- ext3_xattr_rehash(header(s->base), s->here);
+ ext4_xattr_rehash(header(s->base), s->here);
inserted:
if (!IS_LAST_ENTRY(s->first)) {
- new_bh = ext3_xattr_cache_find(inode, header(s->base), &ce);
+ new_bh = ext4_xattr_cache_find(inode, header(s->base), &ce);
if (new_bh) {
/* We found an identical block in the cache. */
if (new_bh == bs->bh)
error = -EDQUOT;
if (DQUOT_ALLOC_BLOCK(inode, 1))
goto cleanup;
- error = ext3_journal_get_write_access(handle,
+ error = ext4_journal_get_write_access(handle,
new_bh);
if (error)
goto cleanup_dquot;
ea_bdebug(new_bh, "reusing; refcount now=%d",
le32_to_cpu(BHDR(new_bh)->h_refcount));
unlock_buffer(new_bh);
- error = ext3_journal_dirty_metadata(handle,
+ error = ext4_journal_dirty_metadata(handle,
new_bh);
if (error)
goto cleanup_dquot;
get_bh(new_bh);
} else {
/* We need to allocate a new block */
- ext3_fsblk_t goal = le32_to_cpu(
- EXT3_SB(sb)->s_es->s_first_data_block) +
- (ext3_fsblk_t)EXT3_I(inode)->i_block_group *
- EXT3_BLOCKS_PER_GROUP(sb);
- ext3_fsblk_t block = ext3_new_block(handle, inode,
+ ext4_fsblk_t goal = le32_to_cpu(
+ EXT4_SB(sb)->s_es->s_first_data_block) +
+ (ext4_fsblk_t)EXT4_I(inode)->i_block_group *
+ EXT4_BLOCKS_PER_GROUP(sb);
+ ext4_fsblk_t block = ext4_new_block(handle, inode,
goal, &error);
if (error)
goto cleanup;
new_bh = sb_getblk(sb, block);
if (!new_bh) {
getblk_failed:
- ext3_free_blocks(handle, inode, block, 1);
+ ext4_free_blocks(handle, inode, block, 1);
error = -EIO;
goto cleanup;
}
lock_buffer(new_bh);
- error = ext3_journal_get_create_access(handle, new_bh);
+ error = ext4_journal_get_create_access(handle, new_bh);
if (error) {
unlock_buffer(new_bh);
goto getblk_failed;
memcpy(new_bh->b_data, s->base, new_bh->b_size);
set_buffer_uptodate(new_bh);
unlock_buffer(new_bh);
- ext3_xattr_cache_insert(new_bh);
- error = ext3_journal_dirty_metadata(handle, new_bh);
+ ext4_xattr_cache_insert(new_bh);
+ error = ext4_journal_dirty_metadata(handle, new_bh);
if (error)
goto cleanup;
}
}
/* Update the inode. */
- EXT3_I(inode)->i_file_acl = new_bh ? new_bh->b_blocknr : 0;
+ EXT4_I(inode)->i_file_acl = new_bh ? new_bh->b_blocknr : 0;
/* Drop the previous xattr block. */
if (bs->bh && bs->bh != new_bh)
- ext3_xattr_release_block(handle, inode, bs->bh);
+ ext4_xattr_release_block(handle, inode, bs->bh);
error = 0;
cleanup:
goto cleanup;
bad_block:
- ext3_error(inode->i_sb, __FUNCTION__,
+ ext4_error(inode->i_sb, __FUNCTION__,
"inode %lu: bad block "E3FSBLK, inode->i_ino,
- EXT3_I(inode)->i_file_acl);
+ EXT4_I(inode)->i_file_acl);
goto cleanup;
#undef header
}
-struct ext3_xattr_ibody_find {
- struct ext3_xattr_search s;
- struct ext3_iloc iloc;
+struct ext4_xattr_ibody_find {
+ struct ext4_xattr_search s;
+ struct ext4_iloc iloc;
};
static int
-ext3_xattr_ibody_find(struct inode *inode, struct ext3_xattr_info *i,
- struct ext3_xattr_ibody_find *is)
+ext4_xattr_ibody_find(struct inode *inode, struct ext4_xattr_info *i,
+ struct ext4_xattr_ibody_find *is)
{
- struct ext3_xattr_ibody_header *header;
- struct ext3_inode *raw_inode;
+ struct ext4_xattr_ibody_header *header;
+ struct ext4_inode *raw_inode;
int error;
- if (EXT3_I(inode)->i_extra_isize == 0)
+ if (EXT4_I(inode)->i_extra_isize == 0)
return 0;
- raw_inode = ext3_raw_inode(&is->iloc);
+ raw_inode = ext4_raw_inode(&is->iloc);
header = IHDR(inode, raw_inode);
is->s.base = is->s.first = IFIRST(header);
is->s.here = is->s.first;
- is->s.end = (void *)raw_inode + EXT3_SB(inode->i_sb)->s_inode_size;
- if (EXT3_I(inode)->i_state & EXT3_STATE_XATTR) {
- error = ext3_xattr_check_names(IFIRST(header), is->s.end);
+ is->s.end = (void *)raw_inode + EXT4_SB(inode->i_sb)->s_inode_size;
+ if (EXT4_I(inode)->i_state & EXT4_STATE_XATTR) {
+ error = ext4_xattr_check_names(IFIRST(header), is->s.end);
if (error)
return error;
/* Find the named attribute. */
- error = ext3_xattr_find_entry(&is->s.here, i->name_index,
+ error = ext4_xattr_find_entry(&is->s.here, i->name_index,
i->name, is->s.end -
(void *)is->s.base, 0);
if (error && error != -ENODATA)
}
static int
-ext3_xattr_ibody_set(handle_t *handle, struct inode *inode,
- struct ext3_xattr_info *i,
- struct ext3_xattr_ibody_find *is)
+ext4_xattr_ibody_set(handle_t *handle, struct inode *inode,
+ struct ext4_xattr_info *i,
+ struct ext4_xattr_ibody_find *is)
{
- struct ext3_xattr_ibody_header *header;
- struct ext3_xattr_search *s = &is->s;
+ struct ext4_xattr_ibody_header *header;
+ struct ext4_xattr_search *s = &is->s;
int error;
- if (EXT3_I(inode)->i_extra_isize == 0)
+ if (EXT4_I(inode)->i_extra_isize == 0)
return -ENOSPC;
- error = ext3_xattr_set_entry(i, s);
+ error = ext4_xattr_set_entry(i, s);
if (error)
return error;
- header = IHDR(inode, ext3_raw_inode(&is->iloc));
+ header = IHDR(inode, ext4_raw_inode(&is->iloc));
if (!IS_LAST_ENTRY(s->first)) {
- header->h_magic = cpu_to_le32(EXT3_XATTR_MAGIC);
- EXT3_I(inode)->i_state |= EXT3_STATE_XATTR;
+ header->h_magic = cpu_to_le32(EXT4_XATTR_MAGIC);
+ EXT4_I(inode)->i_state |= EXT4_STATE_XATTR;
} else {
header->h_magic = cpu_to_le32(0);
- EXT3_I(inode)->i_state &= ~EXT3_STATE_XATTR;
+ EXT4_I(inode)->i_state &= ~EXT4_STATE_XATTR;
}
return 0;
}
/*
- * ext3_xattr_set_handle()
+ * ext4_xattr_set_handle()
*
* Create, replace or remove an extended attribute for this inode. Buffer
* is NULL to remove an existing extended attribute, and non-NULL to
* Returns 0, or a negative error number on failure.
*/
int
-ext3_xattr_set_handle(handle_t *handle, struct inode *inode, int name_index,
+ext4_xattr_set_handle(handle_t *handle, struct inode *inode, int name_index,
const char *name, const void *value, size_t value_len,
int flags)
{
- struct ext3_xattr_info i = {
+ struct ext4_xattr_info i = {
.name_index = name_index,
.name = name,
.value = value,
.value_len = value_len,
};
- struct ext3_xattr_ibody_find is = {
+ struct ext4_xattr_ibody_find is = {
.s = { .not_found = -ENODATA, },
};
- struct ext3_xattr_block_find bs = {
+ struct ext4_xattr_block_find bs = {
.s = { .not_found = -ENODATA, },
};
int error;
return -EINVAL;
if (strlen(name) > 255)
return -ERANGE;
- down_write(&EXT3_I(inode)->xattr_sem);
- error = ext3_get_inode_loc(inode, &is.iloc);
+ down_write(&EXT4_I(inode)->xattr_sem);
+ error = ext4_get_inode_loc(inode, &is.iloc);
if (error)
goto cleanup;
- if (EXT3_I(inode)->i_state & EXT3_STATE_NEW) {
- struct ext3_inode *raw_inode = ext3_raw_inode(&is.iloc);
- memset(raw_inode, 0, EXT3_SB(inode->i_sb)->s_inode_size);
- EXT3_I(inode)->i_state &= ~EXT3_STATE_NEW;
+ if (EXT4_I(inode)->i_state & EXT4_STATE_NEW) {
+ struct ext4_inode *raw_inode = ext4_raw_inode(&is.iloc);
+ memset(raw_inode, 0, EXT4_SB(inode->i_sb)->s_inode_size);
+ EXT4_I(inode)->i_state &= ~EXT4_STATE_NEW;
}
- error = ext3_xattr_ibody_find(inode, &i, &is);
+ error = ext4_xattr_ibody_find(inode, &i, &is);
if (error)
goto cleanup;
if (is.s.not_found)
- error = ext3_xattr_block_find(inode, &i, &bs);
+ error = ext4_xattr_block_find(inode, &i, &bs);
if (error)
goto cleanup;
if (is.s.not_found && bs.s.not_found) {
if (flags & XATTR_CREATE)
goto cleanup;
}
- error = ext3_journal_get_write_access(handle, is.iloc.bh);
+ error = ext4_journal_get_write_access(handle, is.iloc.bh);
if (error)
goto cleanup;
if (!value) {
if (!is.s.not_found)
- error = ext3_xattr_ibody_set(handle, inode, &i, &is);
+ error = ext4_xattr_ibody_set(handle, inode, &i, &is);
else if (!bs.s.not_found)
- error = ext3_xattr_block_set(handle, inode, &i, &bs);
+ error = ext4_xattr_block_set(handle, inode, &i, &bs);
} else {
- error = ext3_xattr_ibody_set(handle, inode, &i, &is);
+ error = ext4_xattr_ibody_set(handle, inode, &i, &is);
if (!error && !bs.s.not_found) {
i.value = NULL;
- error = ext3_xattr_block_set(handle, inode, &i, &bs);
+ error = ext4_xattr_block_set(handle, inode, &i, &bs);
} else if (error == -ENOSPC) {
- error = ext3_xattr_block_set(handle, inode, &i, &bs);
+ error = ext4_xattr_block_set(handle, inode, &i, &bs);
if (error)
goto cleanup;
if (!is.s.not_found) {
i.value = NULL;
- error = ext3_xattr_ibody_set(handle, inode, &i,
+ error = ext4_xattr_ibody_set(handle, inode, &i,
&is);
}
}
}
if (!error) {
- ext3_xattr_update_super_block(handle, inode->i_sb);
+ ext4_xattr_update_super_block(handle, inode->i_sb);
inode->i_ctime = CURRENT_TIME_SEC;
- error = ext3_mark_iloc_dirty(handle, inode, &is.iloc);
+ error = ext4_mark_iloc_dirty(handle, inode, &is.iloc);
/*
- * The bh is consumed by ext3_mark_iloc_dirty, even with
+ * The bh is consumed by ext4_mark_iloc_dirty, even with
* error != 0.
*/
is.iloc.bh = NULL;
cleanup:
brelse(is.iloc.bh);
brelse(bs.bh);
- up_write(&EXT3_I(inode)->xattr_sem);
+ up_write(&EXT4_I(inode)->xattr_sem);
return error;
}
/*
- * ext3_xattr_set()
+ * ext4_xattr_set()
*
- * Like ext3_xattr_set_handle, but start from an inode. This extended
+ * Like ext4_xattr_set_handle, but start from an inode. This extended
* attribute modification is a filesystem transaction by itself.
*
* Returns 0, or a negative error number on failure.
*/
int
-ext3_xattr_set(struct inode *inode, int name_index, const char *name,
+ext4_xattr_set(struct inode *inode, int name_index, const char *name,
const void *value, size_t value_len, int flags)
{
handle_t *handle;
int error, retries = 0;
retry:
- handle = ext3_journal_start(inode, EXT3_DATA_TRANS_BLOCKS(inode->i_sb));
+ handle = ext4_journal_start(inode, EXT4_DATA_TRANS_BLOCKS(inode->i_sb));
if (IS_ERR(handle)) {
error = PTR_ERR(handle);
} else {
int error2;
- error = ext3_xattr_set_handle(handle, inode, name_index, name,
+ error = ext4_xattr_set_handle(handle, inode, name_index, name,
value, value_len, flags);
- error2 = ext3_journal_stop(handle);
+ error2 = ext4_journal_stop(handle);
if (error == -ENOSPC &&
- ext3_should_retry_alloc(inode->i_sb, &retries))
+ ext4_should_retry_alloc(inode->i_sb, &retries))
goto retry;
if (error == 0)
error = error2;
}
/*
- * ext3_xattr_delete_inode()
+ * ext4_xattr_delete_inode()
*
* Free extended attribute resources associated with this inode. This
* is called immediately before an inode is freed. We have exclusive
* access to the inode.
*/
void
-ext3_xattr_delete_inode(handle_t *handle, struct inode *inode)
+ext4_xattr_delete_inode(handle_t *handle, struct inode *inode)
{
struct buffer_head *bh = NULL;
- if (!EXT3_I(inode)->i_file_acl)
+ if (!EXT4_I(inode)->i_file_acl)
goto cleanup;
- bh = sb_bread(inode->i_sb, EXT3_I(inode)->i_file_acl);
+ bh = sb_bread(inode->i_sb, EXT4_I(inode)->i_file_acl);
if (!bh) {
- ext3_error(inode->i_sb, __FUNCTION__,
+ ext4_error(inode->i_sb, __FUNCTION__,
"inode %lu: block "E3FSBLK" read error", inode->i_ino,
- EXT3_I(inode)->i_file_acl);
+ EXT4_I(inode)->i_file_acl);
goto cleanup;
}
- if (BHDR(bh)->h_magic != cpu_to_le32(EXT3_XATTR_MAGIC) ||
+ if (BHDR(bh)->h_magic != cpu_to_le32(EXT4_XATTR_MAGIC) ||
BHDR(bh)->h_blocks != cpu_to_le32(1)) {
- ext3_error(inode->i_sb, __FUNCTION__,
+ ext4_error(inode->i_sb, __FUNCTION__,
"inode %lu: bad block "E3FSBLK, inode->i_ino,
- EXT3_I(inode)->i_file_acl);
+ EXT4_I(inode)->i_file_acl);
goto cleanup;
}
- ext3_xattr_release_block(handle, inode, bh);
- EXT3_I(inode)->i_file_acl = 0;
+ ext4_xattr_release_block(handle, inode, bh);
+ EXT4_I(inode)->i_file_acl = 0;
cleanup:
brelse(bh);
}
/*
- * ext3_xattr_put_super()
+ * ext4_xattr_put_super()
*
* This is called when a file system is unmounted.
*/
void
-ext3_xattr_put_super(struct super_block *sb)
+ext4_xattr_put_super(struct super_block *sb)
{
mb_cache_shrink(sb->s_bdev);
}
/*
- * ext3_xattr_cache_insert()
+ * ext4_xattr_cache_insert()
*
* Create a new entry in the extended attribute cache, and insert
* it unless such an entry is already in the cache.
* Returns 0, or a negative error number on failure.
*/
static void
-ext3_xattr_cache_insert(struct buffer_head *bh)
+ext4_xattr_cache_insert(struct buffer_head *bh)
{
__u32 hash = le32_to_cpu(BHDR(bh)->h_hash);
struct mb_cache_entry *ce;
int error;
- ce = mb_cache_entry_alloc(ext3_xattr_cache);
+ ce = mb_cache_entry_alloc(ext4_xattr_cache);
if (!ce) {
ea_bdebug(bh, "out of memory");
return;
}
/*
- * ext3_xattr_cmp()
+ * ext4_xattr_cmp()
*
* Compare two extended attribute blocks for equality.
*
* a negative error number on errors.
*/
static int
-ext3_xattr_cmp(struct ext3_xattr_header *header1,
- struct ext3_xattr_header *header2)
+ext4_xattr_cmp(struct ext4_xattr_header *header1,
+ struct ext4_xattr_header *header2)
{
- struct ext3_xattr_entry *entry1, *entry2;
+ struct ext4_xattr_entry *entry1, *entry2;
entry1 = ENTRY(header1+1);
entry2 = ENTRY(header2+1);
le32_to_cpu(entry1->e_value_size)))
return 1;
- entry1 = EXT3_XATTR_NEXT(entry1);
- entry2 = EXT3_XATTR_NEXT(entry2);
+ entry1 = EXT4_XATTR_NEXT(entry1);
+ entry2 = EXT4_XATTR_NEXT(entry2);
}
if (!IS_LAST_ENTRY(entry2))
return 1;
}
/*
- * ext3_xattr_cache_find()
+ * ext4_xattr_cache_find()
*
* Find an identical extended attribute block.
*
* not found or an error occurred.
*/
static struct buffer_head *
-ext3_xattr_cache_find(struct inode *inode, struct ext3_xattr_header *header,
+ext4_xattr_cache_find(struct inode *inode, struct ext4_xattr_header *header,
struct mb_cache_entry **pce)
{
__u32 hash = le32_to_cpu(header->h_hash);
return NULL; /* never share */
ea_idebug(inode, "looking for cached blocks [%x]", (int)hash);
again:
- ce = mb_cache_entry_find_first(ext3_xattr_cache, 0,
+ ce = mb_cache_entry_find_first(ext4_xattr_cache, 0,
inode->i_sb->s_bdev, hash);
while (ce) {
struct buffer_head *bh;
}
bh = sb_bread(inode->i_sb, ce->e_block);
if (!bh) {
- ext3_error(inode->i_sb, __FUNCTION__,
+ ext4_error(inode->i_sb, __FUNCTION__,
"inode %lu: block %lu read error",
inode->i_ino, (unsigned long) ce->e_block);
} else if (le32_to_cpu(BHDR(bh)->h_refcount) >=
- EXT3_XATTR_REFCOUNT_MAX) {
+ EXT4_XATTR_REFCOUNT_MAX) {
ea_idebug(inode, "block %lu refcount %d>=%d",
(unsigned long) ce->e_block,
le32_to_cpu(BHDR(bh)->h_refcount),
- EXT3_XATTR_REFCOUNT_MAX);
- } else if (ext3_xattr_cmp(header, BHDR(bh)) == 0) {
+ EXT4_XATTR_REFCOUNT_MAX);
+ } else if (ext4_xattr_cmp(header, BHDR(bh)) == 0) {
*pce = ce;
return bh;
}
#define VALUE_HASH_SHIFT 16
/*
- * ext3_xattr_hash_entry()
+ * ext4_xattr_hash_entry()
*
* Compute the hash of an extended attribute.
*/
-static inline void ext3_xattr_hash_entry(struct ext3_xattr_header *header,
- struct ext3_xattr_entry *entry)
+static inline void ext4_xattr_hash_entry(struct ext4_xattr_header *header,
+ struct ext4_xattr_entry *entry)
{
__u32 hash = 0;
char *name = entry->e_name;
__le32 *value = (__le32 *)((char *)header +
le16_to_cpu(entry->e_value_offs));
for (n = (le32_to_cpu(entry->e_value_size) +
- EXT3_XATTR_ROUND) >> EXT3_XATTR_PAD_BITS; n; n--) {
+ EXT4_XATTR_ROUND) >> EXT4_XATTR_PAD_BITS; n; n--) {
hash = (hash << VALUE_HASH_SHIFT) ^
(hash >> (8*sizeof(hash) - VALUE_HASH_SHIFT)) ^
le32_to_cpu(*value++);
#define BLOCK_HASH_SHIFT 16
/*
- * ext3_xattr_rehash()
+ * ext4_xattr_rehash()
*
* Re-compute the extended attribute hash value after an entry has changed.
*/
-static void ext3_xattr_rehash(struct ext3_xattr_header *header,
- struct ext3_xattr_entry *entry)
+static void ext4_xattr_rehash(struct ext4_xattr_header *header,
+ struct ext4_xattr_entry *entry)
{
- struct ext3_xattr_entry *here;
+ struct ext4_xattr_entry *here;
__u32 hash = 0;
- ext3_xattr_hash_entry(header, entry);
+ ext4_xattr_hash_entry(header, entry);
here = ENTRY(header+1);
while (!IS_LAST_ENTRY(here)) {
if (!here->e_hash) {
hash = (hash << BLOCK_HASH_SHIFT) ^
(hash >> (8*sizeof(hash) - BLOCK_HASH_SHIFT)) ^
le32_to_cpu(here->e_hash);
- here = EXT3_XATTR_NEXT(here);
+ here = EXT4_XATTR_NEXT(here);
}
header->h_hash = cpu_to_le32(hash);
}
#undef BLOCK_HASH_SHIFT
int __init
-init_ext3_xattr(void)
+init_ext4_xattr(void)
{
- ext3_xattr_cache = mb_cache_create("ext3_xattr", NULL,
+ ext4_xattr_cache = mb_cache_create("ext4_xattr", NULL,
sizeof(struct mb_cache_entry) +
sizeof(((struct mb_cache_entry *) 0)->e_indexes[0]), 1, 6);
- if (!ext3_xattr_cache)
+ if (!ext4_xattr_cache)
return -ENOMEM;
return 0;
}
void
-exit_ext3_xattr(void)
+exit_ext4_xattr(void)
{
- if (ext3_xattr_cache)
- mb_cache_destroy(ext3_xattr_cache);
- ext3_xattr_cache = NULL;
+ if (ext4_xattr_cache)
+ mb_cache_destroy(ext4_xattr_cache);
+ ext4_xattr_cache = NULL;
}
/*
- File: fs/ext3/xattr.h
+ File: fs/ext4/xattr.h
- On-disk format of extended attributes for the ext3 filesystem.
+ On-disk format of extended attributes for the ext4 filesystem.
(C) 2001 Andreas Gruenbacher, <a.gruenbacher@computer.org>
*/
#include <linux/xattr.h>
/* Magic value in attribute blocks */
-#define EXT3_XATTR_MAGIC 0xEA020000
+#define EXT4_XATTR_MAGIC 0xEA020000
/* Maximum number of references to one attribute block */
-#define EXT3_XATTR_REFCOUNT_MAX 1024
+#define EXT4_XATTR_REFCOUNT_MAX 1024
/* Name indexes */
-#define EXT3_XATTR_INDEX_USER 1
-#define EXT3_XATTR_INDEX_POSIX_ACL_ACCESS 2
-#define EXT3_XATTR_INDEX_POSIX_ACL_DEFAULT 3
-#define EXT3_XATTR_INDEX_TRUSTED 4
-#define EXT3_XATTR_INDEX_LUSTRE 5
-#define EXT3_XATTR_INDEX_SECURITY 6
-
-struct ext3_xattr_header {
+#define EXT4_XATTR_INDEX_USER 1
+#define EXT4_XATTR_INDEX_POSIX_ACL_ACCESS 2
+#define EXT4_XATTR_INDEX_POSIX_ACL_DEFAULT 3
+#define EXT4_XATTR_INDEX_TRUSTED 4
+#define EXT4_XATTR_INDEX_LUSTRE 5
+#define EXT4_XATTR_INDEX_SECURITY 6
+
+struct ext4_xattr_header {
__le32 h_magic; /* magic number for identification */
__le32 h_refcount; /* reference count */
__le32 h_blocks; /* number of disk blocks used */
__u32 h_reserved[4]; /* zero right now */
};
-struct ext3_xattr_ibody_header {
+struct ext4_xattr_ibody_header {
__le32 h_magic; /* magic number for identification */
};
-struct ext3_xattr_entry {
+struct ext4_xattr_entry {
__u8 e_name_len; /* length of name */
__u8 e_name_index; /* attribute name index */
__le16 e_value_offs; /* offset in disk block of value */
char e_name[0]; /* attribute name */
};
-#define EXT3_XATTR_PAD_BITS 2
-#define EXT3_XATTR_PAD (1<<EXT3_XATTR_PAD_BITS)
-#define EXT3_XATTR_ROUND (EXT3_XATTR_PAD-1)
-#define EXT3_XATTR_LEN(name_len) \
- (((name_len) + EXT3_XATTR_ROUND + \
- sizeof(struct ext3_xattr_entry)) & ~EXT3_XATTR_ROUND)
-#define EXT3_XATTR_NEXT(entry) \
- ( (struct ext3_xattr_entry *)( \
- (char *)(entry) + EXT3_XATTR_LEN((entry)->e_name_len)) )
-#define EXT3_XATTR_SIZE(size) \
- (((size) + EXT3_XATTR_ROUND) & ~EXT3_XATTR_ROUND)
+#define EXT4_XATTR_PAD_BITS 2
+#define EXT4_XATTR_PAD (1<<EXT4_XATTR_PAD_BITS)
+#define EXT4_XATTR_ROUND (EXT4_XATTR_PAD-1)
+#define EXT4_XATTR_LEN(name_len) \
+ (((name_len) + EXT4_XATTR_ROUND + \
+ sizeof(struct ext4_xattr_entry)) & ~EXT4_XATTR_ROUND)
+#define EXT4_XATTR_NEXT(entry) \
+ ( (struct ext4_xattr_entry *)( \
+ (char *)(entry) + EXT4_XATTR_LEN((entry)->e_name_len)) )
+#define EXT4_XATTR_SIZE(size) \
+ (((size) + EXT4_XATTR_ROUND) & ~EXT4_XATTR_ROUND)
-# ifdef CONFIG_EXT3_FS_XATTR
+# ifdef CONFIG_EXT4DEV_FS_XATTR
-extern struct xattr_handler ext3_xattr_user_handler;
-extern struct xattr_handler ext3_xattr_trusted_handler;
-extern struct xattr_handler ext3_xattr_acl_access_handler;
-extern struct xattr_handler ext3_xattr_acl_default_handler;
-extern struct xattr_handler ext3_xattr_security_handler;
+extern struct xattr_handler ext4_xattr_user_handler;
+extern struct xattr_handler ext4_xattr_trusted_handler;
+extern struct xattr_handler ext4_xattr_acl_access_handler;
+extern struct xattr_handler ext4_xattr_acl_default_handler;
+extern struct xattr_handler ext4_xattr_security_handler;
-extern ssize_t ext3_listxattr(struct dentry *, char *, size_t);
+extern ssize_t ext4_listxattr(struct dentry *, char *, size_t);
-extern int ext3_xattr_get(struct inode *, int, const char *, void *, size_t);
-extern int ext3_xattr_list(struct inode *, char *, size_t);
-extern int ext3_xattr_set(struct inode *, int, const char *, const void *, size_t, int);
-extern int ext3_xattr_set_handle(handle_t *, struct inode *, int, const char *, const void *, size_t, int);
+extern int ext4_xattr_get(struct inode *, int, const char *, void *, size_t);
+extern int ext4_xattr_list(struct inode *, char *, size_t);
+extern int ext4_xattr_set(struct inode *, int, const char *, const void *, size_t, int);
+extern int ext4_xattr_set_handle(handle_t *, struct inode *, int, const char *, const void *, size_t, int);
-extern void ext3_xattr_delete_inode(handle_t *, struct inode *);
-extern void ext3_xattr_put_super(struct super_block *);
+extern void ext4_xattr_delete_inode(handle_t *, struct inode *);
+extern void ext4_xattr_put_super(struct super_block *);
-extern int init_ext3_xattr(void);
-extern void exit_ext3_xattr(void);
+extern int init_ext4_xattr(void);
+extern void exit_ext4_xattr(void);
-extern struct xattr_handler *ext3_xattr_handlers[];
+extern struct xattr_handler *ext4_xattr_handlers[];
-# else /* CONFIG_EXT3_FS_XATTR */
+# else /* CONFIG_EXT4DEV_FS_XATTR */
static inline int
-ext3_xattr_get(struct inode *inode, int name_index, const char *name,
+ext4_xattr_get(struct inode *inode, int name_index, const char *name,
void *buffer, size_t size, int flags)
{
return -EOPNOTSUPP;
}
static inline int
-ext3_xattr_list(struct inode *inode, void *buffer, size_t size)
+ext4_xattr_list(struct inode *inode, void *buffer, size_t size)
{
return -EOPNOTSUPP;
}
static inline int
-ext3_xattr_set(struct inode *inode, int name_index, const char *name,
+ext4_xattr_set(struct inode *inode, int name_index, const char *name,
const void *value, size_t size, int flags)
{
return -EOPNOTSUPP;
}
static inline int
-ext3_xattr_set_handle(handle_t *handle, struct inode *inode, int name_index,
+ext4_xattr_set_handle(handle_t *handle, struct inode *inode, int name_index,
const char *name, const void *value, size_t size, int flags)
{
return -EOPNOTSUPP;
}
static inline void
-ext3_xattr_delete_inode(handle_t *handle, struct inode *inode)
+ext4_xattr_delete_inode(handle_t *handle, struct inode *inode)
{
}
static inline void
-ext3_xattr_put_super(struct super_block *sb)
+ext4_xattr_put_super(struct super_block *sb)
{
}
static inline int
-init_ext3_xattr(void)
+init_ext4_xattr(void)
{
return 0;
}
static inline void
-exit_ext3_xattr(void)
+exit_ext4_xattr(void)
{
}
-#define ext3_xattr_handlers NULL
+#define ext4_xattr_handlers NULL
-# endif /* CONFIG_EXT3_FS_XATTR */
+# endif /* CONFIG_EXT4DEV_FS_XATTR */
-#ifdef CONFIG_EXT3_FS_SECURITY
-extern int ext3_init_security(handle_t *handle, struct inode *inode,
+#ifdef CONFIG_EXT4DEV_FS_SECURITY
+extern int ext4_init_security(handle_t *handle, struct inode *inode,
struct inode *dir);
#else
-static inline int ext3_init_security(handle_t *handle, struct inode *inode,
+static inline int ext4_init_security(handle_t *handle, struct inode *inode,
struct inode *dir)
{
return 0;
/*
- * linux/fs/ext3/xattr_security.c
+ * linux/fs/ext4/xattr_security.c
* Handler for storing security labels as extended attributes.
*/
#include <linux/string.h>
#include <linux/fs.h>
#include <linux/smp_lock.h>
-#include <linux/ext3_jbd.h>
-#include <linux/ext3_fs.h>
+#include <linux/ext4_jbd.h>
+#include <linux/ext4_fs.h>
#include <linux/security.h>
#include "xattr.h"
static size_t
-ext3_xattr_security_list(struct inode *inode, char *list, size_t list_size,
+ext4_xattr_security_list(struct inode *inode, char *list, size_t list_size,
const char *name, size_t name_len)
{
const size_t prefix_len = sizeof(XATTR_SECURITY_PREFIX)-1;
}
static int
-ext3_xattr_security_get(struct inode *inode, const char *name,
+ext4_xattr_security_get(struct inode *inode, const char *name,
void *buffer, size_t size)
{
if (strcmp(name, "") == 0)
return -EINVAL;
- return ext3_xattr_get(inode, EXT3_XATTR_INDEX_SECURITY, name,
+ return ext4_xattr_get(inode, EXT4_XATTR_INDEX_SECURITY, name,
buffer, size);
}
static int
-ext3_xattr_security_set(struct inode *inode, const char *name,
+ext4_xattr_security_set(struct inode *inode, const char *name,
const void *value, size_t size, int flags)
{
if (strcmp(name, "") == 0)
return -EINVAL;
- return ext3_xattr_set(inode, EXT3_XATTR_INDEX_SECURITY, name,
+ return ext4_xattr_set(inode, EXT4_XATTR_INDEX_SECURITY, name,
value, size, flags);
}
int
-ext3_init_security(handle_t *handle, struct inode *inode, struct inode *dir)
+ext4_init_security(handle_t *handle, struct inode *inode, struct inode *dir)
{
int err;
size_t len;
return 0;
return err;
}
- err = ext3_xattr_set_handle(handle, inode, EXT3_XATTR_INDEX_SECURITY,
+ err = ext4_xattr_set_handle(handle, inode, EXT4_XATTR_INDEX_SECURITY,
name, value, len, 0);
kfree(name);
kfree(value);
return err;
}
-struct xattr_handler ext3_xattr_security_handler = {
+struct xattr_handler ext4_xattr_security_handler = {
.prefix = XATTR_SECURITY_PREFIX,
- .list = ext3_xattr_security_list,
- .get = ext3_xattr_security_get,
- .set = ext3_xattr_security_set,
+ .list = ext4_xattr_security_list,
+ .get = ext4_xattr_security_get,
+ .set = ext4_xattr_security_set,
};
/*
- * linux/fs/ext3/xattr_trusted.c
+ * linux/fs/ext4/xattr_trusted.c
* Handler for trusted extended attributes.
*
* Copyright (C) 2003 by Andreas Gruenbacher, <a.gruenbacher@computer.org>
#include <linux/capability.h>
#include <linux/fs.h>
#include <linux/smp_lock.h>
-#include <linux/ext3_jbd.h>
-#include <linux/ext3_fs.h>
+#include <linux/ext4_jbd.h>
+#include <linux/ext4_fs.h>
#include "xattr.h"
#define XATTR_TRUSTED_PREFIX "trusted."
static size_t
-ext3_xattr_trusted_list(struct inode *inode, char *list, size_t list_size,
+ext4_xattr_trusted_list(struct inode *inode, char *list, size_t list_size,
const char *name, size_t name_len)
{
const size_t prefix_len = sizeof(XATTR_TRUSTED_PREFIX)-1;
}
static int
-ext3_xattr_trusted_get(struct inode *inode, const char *name,
+ext4_xattr_trusted_get(struct inode *inode, const char *name,
void *buffer, size_t size)
{
if (strcmp(name, "") == 0)
return -EINVAL;
- return ext3_xattr_get(inode, EXT3_XATTR_INDEX_TRUSTED, name,
+ return ext4_xattr_get(inode, EXT4_XATTR_INDEX_TRUSTED, name,
buffer, size);
}
static int
-ext3_xattr_trusted_set(struct inode *inode, const char *name,
+ext4_xattr_trusted_set(struct inode *inode, const char *name,
const void *value, size_t size, int flags)
{
if (strcmp(name, "") == 0)
return -EINVAL;
- return ext3_xattr_set(inode, EXT3_XATTR_INDEX_TRUSTED, name,
+ return ext4_xattr_set(inode, EXT4_XATTR_INDEX_TRUSTED, name,
value, size, flags);
}
-struct xattr_handler ext3_xattr_trusted_handler = {
+struct xattr_handler ext4_xattr_trusted_handler = {
.prefix = XATTR_TRUSTED_PREFIX,
- .list = ext3_xattr_trusted_list,
- .get = ext3_xattr_trusted_get,
- .set = ext3_xattr_trusted_set,
+ .list = ext4_xattr_trusted_list,
+ .get = ext4_xattr_trusted_get,
+ .set = ext4_xattr_trusted_set,
};
/*
- * linux/fs/ext3/xattr_user.c
+ * linux/fs/ext4/xattr_user.c
* Handler for extended user attributes.
*
* Copyright (C) 2001 by Andreas Gruenbacher, <a.gruenbacher@computer.org>
#include <linux/string.h>
#include <linux/fs.h>
#include <linux/smp_lock.h>
-#include <linux/ext3_jbd.h>
-#include <linux/ext3_fs.h>
+#include <linux/ext4_jbd.h>
+#include <linux/ext4_fs.h>
#include "xattr.h"
#define XATTR_USER_PREFIX "user."
static size_t
-ext3_xattr_user_list(struct inode *inode, char *list, size_t list_size,
+ext4_xattr_user_list(struct inode *inode, char *list, size_t list_size,
const char *name, size_t name_len)
{
const size_t prefix_len = sizeof(XATTR_USER_PREFIX)-1;
}
static int
-ext3_xattr_user_get(struct inode *inode, const char *name,
+ext4_xattr_user_get(struct inode *inode, const char *name,
void *buffer, size_t size)
{
if (strcmp(name, "") == 0)
return -EINVAL;
if (!test_opt(inode->i_sb, XATTR_USER))
return -EOPNOTSUPP;
- return ext3_xattr_get(inode, EXT3_XATTR_INDEX_USER, name, buffer, size);
+ return ext4_xattr_get(inode, EXT4_XATTR_INDEX_USER, name, buffer, size);
}
static int
-ext3_xattr_user_set(struct inode *inode, const char *name,
+ext4_xattr_user_set(struct inode *inode, const char *name,
const void *value, size_t size, int flags)
{
if (strcmp(name, "") == 0)
return -EINVAL;
if (!test_opt(inode->i_sb, XATTR_USER))
return -EOPNOTSUPP;
- return ext3_xattr_set(inode, EXT3_XATTR_INDEX_USER, name,
+ return ext4_xattr_set(inode, EXT4_XATTR_INDEX_USER, name,
value, size, flags);
}
-struct xattr_handler ext3_xattr_user_handler = {
+struct xattr_handler ext4_xattr_user_handler = {
.prefix = XATTR_USER_PREFIX,
- .list = ext3_xattr_user_list,
- .get = ext3_xattr_user_get,
- .set = ext3_xattr_user_set,
+ .list = ext4_xattr_user_list,
+ .get = ext4_xattr_user_get,
+ .set = ext4_xattr_user_set,
};
/*
- * linux/include/linux/ext3_fs.h
+ * linux/include/linux/ext4_fs.h
*
* Copyright (C) 1992, 1993, 1994, 1995
* Remy Card (card@masi.ibp.fr)
* Copyright (C) 1991, 1992 Linus Torvalds
*/
-#ifndef _LINUX_EXT3_FS_H
-#define _LINUX_EXT3_FS_H
+#ifndef _LINUX_EXT4_FS_H
+#define _LINUX_EXT4_FS_H
#include <linux/types.h>
#include <linux/magic.h>
*/
/*
- * Define EXT3FS_DEBUG to produce debug messages
+ * Define EXT4FS_DEBUG to produce debug messages
*/
-#undef EXT3FS_DEBUG
+#undef EXT4FS_DEBUG
/*
- * Define EXT3_RESERVATION to reserve data blocks for expanding files
+ * Define EXT4_RESERVATION to reserve data blocks for expanding files
*/
-#define EXT3_DEFAULT_RESERVE_BLOCKS 8
+#define EXT4_DEFAULT_RESERVE_BLOCKS 8
/*max window size: 1024(direct blocks) + 3([t,d]indirect blocks) */
-#define EXT3_MAX_RESERVE_BLOCKS 1027
-#define EXT3_RESERVE_WINDOW_NOT_ALLOCATED 0
+#define EXT4_MAX_RESERVE_BLOCKS 1027
+#define EXT4_RESERVE_WINDOW_NOT_ALLOCATED 0
/*
* Always enable hashed directories
*/
-#define CONFIG_EXT3_INDEX
+#define CONFIG_EXT4_INDEX
/*
* Debug code
*/
-#ifdef EXT3FS_DEBUG
-#define ext3_debug(f, a...) \
+#ifdef EXT4FS_DEBUG
+#define ext4_debug(f, a...) \
do { \
- printk (KERN_DEBUG "EXT3-fs DEBUG (%s, %d): %s:", \
+ printk (KERN_DEBUG "EXT4-fs DEBUG (%s, %d): %s:", \
__FILE__, __LINE__, __FUNCTION__); \
printk (KERN_DEBUG f, ## a); \
} while (0)
#else
-#define ext3_debug(f, a...) do {} while (0)
+#define ext4_debug(f, a...) do {} while (0)
#endif
/*
* Special inodes numbers
*/
-#define EXT3_BAD_INO 1 /* Bad blocks inode */
-#define EXT3_ROOT_INO 2 /* Root inode */
-#define EXT3_BOOT_LOADER_INO 5 /* Boot loader inode */
-#define EXT3_UNDEL_DIR_INO 6 /* Undelete directory inode */
-#define EXT3_RESIZE_INO 7 /* Reserved group descriptors inode */
-#define EXT3_JOURNAL_INO 8 /* Journal inode */
+#define EXT4_BAD_INO 1 /* Bad blocks inode */
+#define EXT4_ROOT_INO 2 /* Root inode */
+#define EXT4_BOOT_LOADER_INO 5 /* Boot loader inode */
+#define EXT4_UNDEL_DIR_INO 6 /* Undelete directory inode */
+#define EXT4_RESIZE_INO 7 /* Reserved group descriptors inode */
+#define EXT4_JOURNAL_INO 8 /* Journal inode */
-/* First non-reserved inode for old ext3 filesystems */
-#define EXT3_GOOD_OLD_FIRST_INO 11
+/* First non-reserved inode for old ext4 filesystems */
+#define EXT4_GOOD_OLD_FIRST_INO 11
/*
* Maximal count of links to a file
*/
-#define EXT3_LINK_MAX 32000
+#define EXT4_LINK_MAX 32000
/*
* Macro-instructions used to manage several block sizes
*/
-#define EXT3_MIN_BLOCK_SIZE 1024
-#define EXT3_MAX_BLOCK_SIZE 4096
-#define EXT3_MIN_BLOCK_LOG_SIZE 10
+#define EXT4_MIN_BLOCK_SIZE 1024
+#define EXT4_MAX_BLOCK_SIZE 4096
+#define EXT4_MIN_BLOCK_LOG_SIZE 10
#ifdef __KERNEL__
-# define EXT3_BLOCK_SIZE(s) ((s)->s_blocksize)
+# define EXT4_BLOCK_SIZE(s) ((s)->s_blocksize)
#else
-# define EXT3_BLOCK_SIZE(s) (EXT3_MIN_BLOCK_SIZE << (s)->s_log_block_size)
+# define EXT4_BLOCK_SIZE(s) (EXT4_MIN_BLOCK_SIZE << (s)->s_log_block_size)
#endif
-#define EXT3_ADDR_PER_BLOCK(s) (EXT3_BLOCK_SIZE(s) / sizeof (__u32))
+#define EXT4_ADDR_PER_BLOCK(s) (EXT4_BLOCK_SIZE(s) / sizeof (__u32))
#ifdef __KERNEL__
-# define EXT3_BLOCK_SIZE_BITS(s) ((s)->s_blocksize_bits)
+# define EXT4_BLOCK_SIZE_BITS(s) ((s)->s_blocksize_bits)
#else
-# define EXT3_BLOCK_SIZE_BITS(s) ((s)->s_log_block_size + 10)
+# define EXT4_BLOCK_SIZE_BITS(s) ((s)->s_log_block_size + 10)
#endif
#ifdef __KERNEL__
-#define EXT3_ADDR_PER_BLOCK_BITS(s) (EXT3_SB(s)->s_addr_per_block_bits)
-#define EXT3_INODE_SIZE(s) (EXT3_SB(s)->s_inode_size)
-#define EXT3_FIRST_INO(s) (EXT3_SB(s)->s_first_ino)
+#define EXT4_ADDR_PER_BLOCK_BITS(s) (EXT4_SB(s)->s_addr_per_block_bits)
+#define EXT4_INODE_SIZE(s) (EXT4_SB(s)->s_inode_size)
+#define EXT4_FIRST_INO(s) (EXT4_SB(s)->s_first_ino)
#else
-#define EXT3_INODE_SIZE(s) (((s)->s_rev_level == EXT3_GOOD_OLD_REV) ? \
- EXT3_GOOD_OLD_INODE_SIZE : \
+#define EXT4_INODE_SIZE(s) (((s)->s_rev_level == EXT4_GOOD_OLD_REV) ? \
+ EXT4_GOOD_OLD_INODE_SIZE : \
(s)->s_inode_size)
-#define EXT3_FIRST_INO(s) (((s)->s_rev_level == EXT3_GOOD_OLD_REV) ? \
- EXT3_GOOD_OLD_FIRST_INO : \
+#define EXT4_FIRST_INO(s) (((s)->s_rev_level == EXT4_GOOD_OLD_REV) ? \
+ EXT4_GOOD_OLD_FIRST_INO : \
(s)->s_first_ino)
#endif
/*
* Macro-instructions used to manage fragments
*/
-#define EXT3_MIN_FRAG_SIZE 1024
-#define EXT3_MAX_FRAG_SIZE 4096
-#define EXT3_MIN_FRAG_LOG_SIZE 10
+#define EXT4_MIN_FRAG_SIZE 1024
+#define EXT4_MAX_FRAG_SIZE 4096
+#define EXT4_MIN_FRAG_LOG_SIZE 10
#ifdef __KERNEL__
-# define EXT3_FRAG_SIZE(s) (EXT3_SB(s)->s_frag_size)
-# define EXT3_FRAGS_PER_BLOCK(s) (EXT3_SB(s)->s_frags_per_block)
+# define EXT4_FRAG_SIZE(s) (EXT4_SB(s)->s_frag_size)
+# define EXT4_FRAGS_PER_BLOCK(s) (EXT4_SB(s)->s_frags_per_block)
#else
-# define EXT3_FRAG_SIZE(s) (EXT3_MIN_FRAG_SIZE << (s)->s_log_frag_size)
-# define EXT3_FRAGS_PER_BLOCK(s) (EXT3_BLOCK_SIZE(s) / EXT3_FRAG_SIZE(s))
+# define EXT4_FRAG_SIZE(s) (EXT4_MIN_FRAG_SIZE << (s)->s_log_frag_size)
+# define EXT4_FRAGS_PER_BLOCK(s) (EXT4_BLOCK_SIZE(s) / EXT4_FRAG_SIZE(s))
#endif
/*
* Structure of a blocks group descriptor
*/
-struct ext3_group_desc
+struct ext4_group_desc
{
__le32 bg_block_bitmap; /* Blocks bitmap block */
__le32 bg_inode_bitmap; /* Inodes bitmap block */
* Macro-instructions used to manage group descriptors
*/
#ifdef __KERNEL__
-# define EXT3_BLOCKS_PER_GROUP(s) (EXT3_SB(s)->s_blocks_per_group)
-# define EXT3_DESC_PER_BLOCK(s) (EXT3_SB(s)->s_desc_per_block)
-# define EXT3_INODES_PER_GROUP(s) (EXT3_SB(s)->s_inodes_per_group)
-# define EXT3_DESC_PER_BLOCK_BITS(s) (EXT3_SB(s)->s_desc_per_block_bits)
+# define EXT4_BLOCKS_PER_GROUP(s) (EXT4_SB(s)->s_blocks_per_group)
+# define EXT4_DESC_PER_BLOCK(s) (EXT4_SB(s)->s_desc_per_block)
+# define EXT4_INODES_PER_GROUP(s) (EXT4_SB(s)->s_inodes_per_group)
+# define EXT4_DESC_PER_BLOCK_BITS(s) (EXT4_SB(s)->s_desc_per_block_bits)
#else
-# define EXT3_BLOCKS_PER_GROUP(s) ((s)->s_blocks_per_group)
-# define EXT3_DESC_PER_BLOCK(s) (EXT3_BLOCK_SIZE(s) / sizeof (struct ext3_group_desc))
-# define EXT3_INODES_PER_GROUP(s) ((s)->s_inodes_per_group)
+# define EXT4_BLOCKS_PER_GROUP(s) ((s)->s_blocks_per_group)
+# define EXT4_DESC_PER_BLOCK(s) (EXT4_BLOCK_SIZE(s) / sizeof (struct ext4_group_desc))
+# define EXT4_INODES_PER_GROUP(s) ((s)->s_inodes_per_group)
#endif
/*
* Constants relative to the data blocks
*/
-#define EXT3_NDIR_BLOCKS 12
-#define EXT3_IND_BLOCK EXT3_NDIR_BLOCKS
-#define EXT3_DIND_BLOCK (EXT3_IND_BLOCK + 1)
-#define EXT3_TIND_BLOCK (EXT3_DIND_BLOCK + 1)
-#define EXT3_N_BLOCKS (EXT3_TIND_BLOCK + 1)
+#define EXT4_NDIR_BLOCKS 12
+#define EXT4_IND_BLOCK EXT4_NDIR_BLOCKS
+#define EXT4_DIND_BLOCK (EXT4_IND_BLOCK + 1)
+#define EXT4_TIND_BLOCK (EXT4_DIND_BLOCK + 1)
+#define EXT4_N_BLOCKS (EXT4_TIND_BLOCK + 1)
/*
* Inode flags
*/
-#define EXT3_SECRM_FL 0x00000001 /* Secure deletion */
-#define EXT3_UNRM_FL 0x00000002 /* Undelete */
-#define EXT3_COMPR_FL 0x00000004 /* Compress file */
-#define EXT3_SYNC_FL 0x00000008 /* Synchronous updates */
-#define EXT3_IMMUTABLE_FL 0x00000010 /* Immutable file */
-#define EXT3_APPEND_FL 0x00000020 /* writes to file may only append */
-#define EXT3_NODUMP_FL 0x00000040 /* do not dump file */
-#define EXT3_NOATIME_FL 0x00000080 /* do not update atime */
+#define EXT4_SECRM_FL 0x00000001 /* Secure deletion */
+#define EXT4_UNRM_FL 0x00000002 /* Undelete */
+#define EXT4_COMPR_FL 0x00000004 /* Compress file */
+#define EXT4_SYNC_FL 0x00000008 /* Synchronous updates */
+#define EXT4_IMMUTABLE_FL 0x00000010 /* Immutable file */
+#define EXT4_APPEND_FL 0x00000020 /* writes to file may only append */
+#define EXT4_NODUMP_FL 0x00000040 /* do not dump file */
+#define EXT4_NOATIME_FL 0x00000080 /* do not update atime */
/* Reserved for compression usage... */
-#define EXT3_DIRTY_FL 0x00000100
-#define EXT3_COMPRBLK_FL 0x00000200 /* One or more compressed clusters */
-#define EXT3_NOCOMPR_FL 0x00000400 /* Don't compress */
-#define EXT3_ECOMPR_FL 0x00000800 /* Compression error */
+#define EXT4_DIRTY_FL 0x00000100
+#define EXT4_COMPRBLK_FL 0x00000200 /* One or more compressed clusters */
+#define EXT4_NOCOMPR_FL 0x00000400 /* Don't compress */
+#define EXT4_ECOMPR_FL 0x00000800 /* Compression error */
/* End compression flags --- maybe not all used */
-#define EXT3_INDEX_FL 0x00001000 /* hash-indexed directory */
-#define EXT3_IMAGIC_FL 0x00002000 /* AFS directory */
-#define EXT3_JOURNAL_DATA_FL 0x00004000 /* file data should be journaled */
-#define EXT3_NOTAIL_FL 0x00008000 /* file tail should not be merged */
-#define EXT3_DIRSYNC_FL 0x00010000 /* dirsync behaviour (directories only) */
-#define EXT3_TOPDIR_FL 0x00020000 /* Top of directory hierarchies*/
-#define EXT3_RESERVED_FL 0x80000000 /* reserved for ext3 lib */
+#define EXT4_INDEX_FL 0x00001000 /* hash-indexed directory */
+#define EXT4_IMAGIC_FL 0x00002000 /* AFS directory */
+#define EXT4_JOURNAL_DATA_FL 0x00004000 /* file data should be journaled */
+#define EXT4_NOTAIL_FL 0x00008000 /* file tail should not be merged */
+#define EXT4_DIRSYNC_FL 0x00010000 /* dirsync behaviour (directories only) */
+#define EXT4_TOPDIR_FL 0x00020000 /* Top of directory hierarchies*/
+#define EXT4_RESERVED_FL 0x80000000 /* reserved for ext4 lib */
-#define EXT3_FL_USER_VISIBLE 0x0003DFFF /* User visible flags */
-#define EXT3_FL_USER_MODIFIABLE 0x000380FF /* User modifiable flags */
+#define EXT4_FL_USER_VISIBLE 0x0003DFFF /* User visible flags */
+#define EXT4_FL_USER_MODIFIABLE 0x000380FF /* User modifiable flags */
/*
* Inode dynamic state flags
*/
-#define EXT3_STATE_JDATA 0x00000001 /* journaled data exists */
-#define EXT3_STATE_NEW 0x00000002 /* inode is newly created */
-#define EXT3_STATE_XATTR 0x00000004 /* has in-inode xattrs */
+#define EXT4_STATE_JDATA 0x00000001 /* journaled data exists */
+#define EXT4_STATE_NEW 0x00000002 /* inode is newly created */
+#define EXT4_STATE_XATTR 0x00000004 /* has in-inode xattrs */
/* Used to pass group descriptor data when online resize is done */
-struct ext3_new_group_input {
+struct ext4_new_group_input {
__u32 group; /* Group number for this data */
__u32 block_bitmap; /* Absolute block number of block bitmap */
__u32 inode_bitmap; /* Absolute block number of inode bitmap */
__u16 unused;
};
-/* The struct ext3_new_group_input in kernel space, with free_blocks_count */
-struct ext3_new_group_data {
+/* The struct ext4_new_group_input in kernel space, with free_blocks_count */
+struct ext4_new_group_data {
__u32 group;
__u32 block_bitmap;
__u32 inode_bitmap;
/*
* ioctl commands
*/
-#define EXT3_IOC_GETFLAGS FS_IOC_GETFLAGS
-#define EXT3_IOC_SETFLAGS FS_IOC_SETFLAGS
-#define EXT3_IOC_GETVERSION _IOR('f', 3, long)
-#define EXT3_IOC_SETVERSION _IOW('f', 4, long)
-#define EXT3_IOC_GROUP_EXTEND _IOW('f', 7, unsigned long)
-#define EXT3_IOC_GROUP_ADD _IOW('f', 8,struct ext3_new_group_input)
-#define EXT3_IOC_GETVERSION_OLD FS_IOC_GETVERSION
-#define EXT3_IOC_SETVERSION_OLD FS_IOC_SETVERSION
+#define EXT4_IOC_GETFLAGS FS_IOC_GETFLAGS
+#define EXT4_IOC_SETFLAGS FS_IOC_SETFLAGS
+#define EXT4_IOC_GETVERSION _IOR('f', 3, long)
+#define EXT4_IOC_SETVERSION _IOW('f', 4, long)
+#define EXT4_IOC_GROUP_EXTEND _IOW('f', 7, unsigned long)
+#define EXT4_IOC_GROUP_ADD _IOW('f', 8,struct ext4_new_group_input)
+#define EXT4_IOC_GETVERSION_OLD FS_IOC_GETVERSION
+#define EXT4_IOC_SETVERSION_OLD FS_IOC_SETVERSION
#ifdef CONFIG_JBD_DEBUG
-#define EXT3_IOC_WAIT_FOR_READONLY _IOR('f', 99, long)
+#define EXT4_IOC_WAIT_FOR_READONLY _IOR('f', 99, long)
#endif
-#define EXT3_IOC_GETRSVSZ _IOR('f', 5, long)
-#define EXT3_IOC_SETRSVSZ _IOW('f', 6, long)
+#define EXT4_IOC_GETRSVSZ _IOR('f', 5, long)
+#define EXT4_IOC_SETRSVSZ _IOW('f', 6, long)
/*
* ioctl commands in 32 bit emulation
*/
-#define EXT3_IOC32_GETFLAGS FS_IOC32_GETFLAGS
-#define EXT3_IOC32_SETFLAGS FS_IOC32_SETFLAGS
-#define EXT3_IOC32_GETVERSION _IOR('f', 3, int)
-#define EXT3_IOC32_SETVERSION _IOW('f', 4, int)
-#define EXT3_IOC32_GETRSVSZ _IOR('f', 5, int)
-#define EXT3_IOC32_SETRSVSZ _IOW('f', 6, int)
-#define EXT3_IOC32_GROUP_EXTEND _IOW('f', 7, unsigned int)
+#define EXT4_IOC32_GETFLAGS FS_IOC32_GETFLAGS
+#define EXT4_IOC32_SETFLAGS FS_IOC32_SETFLAGS
+#define EXT4_IOC32_GETVERSION _IOR('f', 3, int)
+#define EXT4_IOC32_SETVERSION _IOW('f', 4, int)
+#define EXT4_IOC32_GETRSVSZ _IOR('f', 5, int)
+#define EXT4_IOC32_SETRSVSZ _IOW('f', 6, int)
+#define EXT4_IOC32_GROUP_EXTEND _IOW('f', 7, unsigned int)
#ifdef CONFIG_JBD_DEBUG
-#define EXT3_IOC32_WAIT_FOR_READONLY _IOR('f', 99, int)
+#define EXT4_IOC32_WAIT_FOR_READONLY _IOR('f', 99, int)
#endif
-#define EXT3_IOC32_GETVERSION_OLD FS_IOC32_GETVERSION
-#define EXT3_IOC32_SETVERSION_OLD FS_IOC32_SETVERSION
+#define EXT4_IOC32_GETVERSION_OLD FS_IOC32_GETVERSION
+#define EXT4_IOC32_SETVERSION_OLD FS_IOC32_SETVERSION
/*
* Mount options
*/
-struct ext3_mount_options {
+struct ext4_mount_options {
unsigned long s_mount_opt;
uid_t s_resuid;
gid_t s_resgid;
/*
* Structure of an inode on the disk
*/
-struct ext3_inode {
+struct ext4_inode {
__le16 i_mode; /* File mode */
__le16 i_uid; /* Low 16 bits of Owner Uid */
__le32 i_size; /* Size in bytes */
__u32 m_i_reserved1;
} masix1;
} osd1; /* OS dependent 1 */
- __le32 i_block[EXT3_N_BLOCKS];/* Pointers to blocks */
+ __le32 i_block[EXT4_N_BLOCKS];/* Pointers to blocks */
__le32 i_generation; /* File version (for NFS) */
__le32 i_file_acl; /* File ACL */
__le32 i_dir_acl; /* Directory ACL */
/*
* File system states
*/
-#define EXT3_VALID_FS 0x0001 /* Unmounted cleanly */
-#define EXT3_ERROR_FS 0x0002 /* Errors detected */
-#define EXT3_ORPHAN_FS 0x0004 /* Orphans being recovered */
+#define EXT4_VALID_FS 0x0001 /* Unmounted cleanly */
+#define EXT4_ERROR_FS 0x0002 /* Errors detected */
+#define EXT4_ORPHAN_FS 0x0004 /* Orphans being recovered */
/*
* Mount flags
*/
-#define EXT3_MOUNT_CHECK 0x00001 /* Do mount-time checks */
-#define EXT3_MOUNT_OLDALLOC 0x00002 /* Don't use the new Orlov allocator */
-#define EXT3_MOUNT_GRPID 0x00004 /* Create files with directory's group */
-#define EXT3_MOUNT_DEBUG 0x00008 /* Some debugging messages */
-#define EXT3_MOUNT_ERRORS_CONT 0x00010 /* Continue on errors */
-#define EXT3_MOUNT_ERRORS_RO 0x00020 /* Remount fs ro on errors */
-#define EXT3_MOUNT_ERRORS_PANIC 0x00040 /* Panic on errors */
-#define EXT3_MOUNT_MINIX_DF 0x00080 /* Mimics the Minix statfs */
-#define EXT3_MOUNT_NOLOAD 0x00100 /* Don't use existing journal*/
-#define EXT3_MOUNT_ABORT 0x00200 /* Fatal error detected */
-#define EXT3_MOUNT_DATA_FLAGS 0x00C00 /* Mode for data writes: */
-#define EXT3_MOUNT_JOURNAL_DATA 0x00400 /* Write data to journal */
-#define EXT3_MOUNT_ORDERED_DATA 0x00800 /* Flush data before commit */
-#define EXT3_MOUNT_WRITEBACK_DATA 0x00C00 /* No data ordering */
-#define EXT3_MOUNT_UPDATE_JOURNAL 0x01000 /* Update the journal format */
-#define EXT3_MOUNT_NO_UID32 0x02000 /* Disable 32-bit UIDs */
-#define EXT3_MOUNT_XATTR_USER 0x04000 /* Extended user attributes */
-#define EXT3_MOUNT_POSIX_ACL 0x08000 /* POSIX Access Control Lists */
-#define EXT3_MOUNT_RESERVATION 0x10000 /* Preallocation */
-#define EXT3_MOUNT_BARRIER 0x20000 /* Use block barriers */
-#define EXT3_MOUNT_NOBH 0x40000 /* No bufferheads */
-#define EXT3_MOUNT_QUOTA 0x80000 /* Some quota option set */
-#define EXT3_MOUNT_USRQUOTA 0x100000 /* "old" user quota */
-#define EXT3_MOUNT_GRPQUOTA 0x200000 /* "old" group quota */
-
-/* Compatibility, for having both ext2_fs.h and ext3_fs.h included at once */
+#define EXT4_MOUNT_CHECK 0x00001 /* Do mount-time checks */
+#define EXT4_MOUNT_OLDALLOC 0x00002 /* Don't use the new Orlov allocator */
+#define EXT4_MOUNT_GRPID 0x00004 /* Create files with directory's group */
+#define EXT4_MOUNT_DEBUG 0x00008 /* Some debugging messages */
+#define EXT4_MOUNT_ERRORS_CONT 0x00010 /* Continue on errors */
+#define EXT4_MOUNT_ERRORS_RO 0x00020 /* Remount fs ro on errors */
+#define EXT4_MOUNT_ERRORS_PANIC 0x00040 /* Panic on errors */
+#define EXT4_MOUNT_MINIX_DF 0x00080 /* Mimics the Minix statfs */
+#define EXT4_MOUNT_NOLOAD 0x00100 /* Don't use existing journal*/
+#define EXT4_MOUNT_ABORT 0x00200 /* Fatal error detected */
+#define EXT4_MOUNT_DATA_FLAGS 0x00C00 /* Mode for data writes: */
+#define EXT4_MOUNT_JOURNAL_DATA 0x00400 /* Write data to journal */
+#define EXT4_MOUNT_ORDERED_DATA 0x00800 /* Flush data before commit */
+#define EXT4_MOUNT_WRITEBACK_DATA 0x00C00 /* No data ordering */
+#define EXT4_MOUNT_UPDATE_JOURNAL 0x01000 /* Update the journal format */
+#define EXT4_MOUNT_NO_UID32 0x02000 /* Disable 32-bit UIDs */
+#define EXT4_MOUNT_XATTR_USER 0x04000 /* Extended user attributes */
+#define EXT4_MOUNT_POSIX_ACL 0x08000 /* POSIX Access Control Lists */
+#define EXT4_MOUNT_RESERVATION 0x10000 /* Preallocation */
+#define EXT4_MOUNT_BARRIER 0x20000 /* Use block barriers */
+#define EXT4_MOUNT_NOBH 0x40000 /* No bufferheads */
+#define EXT4_MOUNT_QUOTA 0x80000 /* Some quota option set */
+#define EXT4_MOUNT_USRQUOTA 0x100000 /* "old" user quota */
+#define EXT4_MOUNT_GRPQUOTA 0x200000 /* "old" group quota */
+
+/* Compatibility, for having both ext2_fs.h and ext4_fs.h included at once */
#ifndef _LINUX_EXT2_FS_H
-#define clear_opt(o, opt) o &= ~EXT3_MOUNT_##opt
-#define set_opt(o, opt) o |= EXT3_MOUNT_##opt
-#define test_opt(sb, opt) (EXT3_SB(sb)->s_mount_opt & \
- EXT3_MOUNT_##opt)
+#define clear_opt(o, opt) o &= ~EXT4_MOUNT_##opt
+#define set_opt(o, opt) o |= EXT4_MOUNT_##opt
+#define test_opt(sb, opt) (EXT4_SB(sb)->s_mount_opt & \
+ EXT4_MOUNT_##opt)
#else
-#define EXT2_MOUNT_NOLOAD EXT3_MOUNT_NOLOAD
-#define EXT2_MOUNT_ABORT EXT3_MOUNT_ABORT
-#define EXT2_MOUNT_DATA_FLAGS EXT3_MOUNT_DATA_FLAGS
+#define EXT2_MOUNT_NOLOAD EXT4_MOUNT_NOLOAD
+#define EXT2_MOUNT_ABORT EXT4_MOUNT_ABORT
+#define EXT2_MOUNT_DATA_FLAGS EXT4_MOUNT_DATA_FLAGS
#endif
-#define ext3_set_bit ext2_set_bit
-#define ext3_set_bit_atomic ext2_set_bit_atomic
-#define ext3_clear_bit ext2_clear_bit
-#define ext3_clear_bit_atomic ext2_clear_bit_atomic
-#define ext3_test_bit ext2_test_bit
-#define ext3_find_first_zero_bit ext2_find_first_zero_bit
-#define ext3_find_next_zero_bit ext2_find_next_zero_bit
+#define ext4_set_bit ext2_set_bit
+#define ext4_set_bit_atomic ext2_set_bit_atomic
+#define ext4_clear_bit ext2_clear_bit
+#define ext4_clear_bit_atomic ext2_clear_bit_atomic
+#define ext4_test_bit ext2_test_bit
+#define ext4_find_first_zero_bit ext2_find_first_zero_bit
+#define ext4_find_next_zero_bit ext2_find_next_zero_bit
/*
* Maximal mount counts between two filesystem checks
*/
-#define EXT3_DFL_MAX_MNT_COUNT 20 /* Allow 20 mounts */
-#define EXT3_DFL_CHECKINTERVAL 0 /* Don't use interval check */
+#define EXT4_DFL_MAX_MNT_COUNT 20 /* Allow 20 mounts */
+#define EXT4_DFL_CHECKINTERVAL 0 /* Don't use interval check */
/*
* Behaviour when detecting errors
*/
-#define EXT3_ERRORS_CONTINUE 1 /* Continue execution */
-#define EXT3_ERRORS_RO 2 /* Remount fs read-only */
-#define EXT3_ERRORS_PANIC 3 /* Panic */
-#define EXT3_ERRORS_DEFAULT EXT3_ERRORS_CONTINUE
+#define EXT4_ERRORS_CONTINUE 1 /* Continue execution */
+#define EXT4_ERRORS_RO 2 /* Remount fs read-only */
+#define EXT4_ERRORS_PANIC 3 /* Panic */
+#define EXT4_ERRORS_DEFAULT EXT4_ERRORS_CONTINUE
/*
* Structure of the super block
*/
-struct ext3_super_block {
+struct ext4_super_block {
/*00*/ __le32 s_inodes_count; /* Inodes count */
__le32 s_blocks_count; /* Blocks count */
__le32 s_r_blocks_count; /* Reserved blocks count */
/*50*/ __le16 s_def_resuid; /* Default uid for reserved blocks */
__le16 s_def_resgid; /* Default gid for reserved blocks */
/*
- * These fields are for EXT3_DYNAMIC_REV superblocks only.
+ * These fields are for EXT4_DYNAMIC_REV superblocks only.
*
* Note: the difference between the compatible feature set and
* the incompatible feature set is that if there is a bit set
/*C8*/ __le32 s_algorithm_usage_bitmap; /* For compression */
/*
* Performance hints. Directory preallocation should only
- * happen if the EXT3_FEATURE_COMPAT_DIR_PREALLOC flag is on.
+ * happen if the EXT4_FEATURE_COMPAT_DIR_PREALLOC flag is on.
*/
__u8 s_prealloc_blocks; /* Nr of blocks to try to preallocate*/
__u8 s_prealloc_dir_blocks; /* Nr to preallocate for dirs */
__le16 s_reserved_gdt_blocks; /* Per group desc for online growth */
/*
- * Journaling support valid if EXT3_FEATURE_COMPAT_HAS_JOURNAL set.
+ * Journaling support valid if EXT4_FEATURE_COMPAT_HAS_JOURNAL set.
*/
/*D0*/ __u8 s_journal_uuid[16]; /* uuid of journal superblock */
/*E0*/ __le32 s_journal_inum; /* inode number of journal file */
};
#ifdef __KERNEL__
-#include <linux/ext3_fs_i.h>
-#include <linux/ext3_fs_sb.h>
-static inline struct ext3_sb_info * EXT3_SB(struct super_block *sb)
+#include <linux/ext4_fs_i.h>
+#include <linux/ext4_fs_sb.h>
+static inline struct ext4_sb_info * EXT4_SB(struct super_block *sb)
{
return sb->s_fs_info;
}
-static inline struct ext3_inode_info *EXT3_I(struct inode *inode)
+static inline struct ext4_inode_info *EXT4_I(struct inode *inode)
{
- return container_of(inode, struct ext3_inode_info, vfs_inode);
+ return container_of(inode, struct ext4_inode_info, vfs_inode);
}
-static inline int ext3_valid_inum(struct super_block *sb, unsigned long ino)
+static inline int ext4_valid_inum(struct super_block *sb, unsigned long ino)
{
- return ino == EXT3_ROOT_INO ||
- ino == EXT3_JOURNAL_INO ||
- ino == EXT3_RESIZE_INO ||
- (ino >= EXT3_FIRST_INO(sb) &&
- ino <= le32_to_cpu(EXT3_SB(sb)->s_es->s_inodes_count));
+ return ino == EXT4_ROOT_INO ||
+ ino == EXT4_JOURNAL_INO ||
+ ino == EXT4_RESIZE_INO ||
+ (ino >= EXT4_FIRST_INO(sb) &&
+ ino <= le32_to_cpu(EXT4_SB(sb)->s_es->s_inodes_count));
}
#else
-/* Assume that user mode programs are passing in an ext3fs superblock, not
+/* Assume that user mode programs are passing in an ext4fs superblock, not
* a kernel struct super_block. This will allow us to call the feature-test
* macros from user land. */
-#define EXT3_SB(sb) (sb)
+#define EXT4_SB(sb) (sb)
#endif
-#define NEXT_ORPHAN(inode) EXT3_I(inode)->i_dtime
+#define NEXT_ORPHAN(inode) EXT4_I(inode)->i_dtime
/*
* Codes for operating systems
*/
-#define EXT3_OS_LINUX 0
-#define EXT3_OS_HURD 1
-#define EXT3_OS_MASIX 2
-#define EXT3_OS_FREEBSD 3
-#define EXT3_OS_LITES 4
+#define EXT4_OS_LINUX 0
+#define EXT4_OS_HURD 1
+#define EXT4_OS_MASIX 2
+#define EXT4_OS_FREEBSD 3
+#define EXT4_OS_LITES 4
/*
* Revision levels
*/
-#define EXT3_GOOD_OLD_REV 0 /* The good old (original) format */
-#define EXT3_DYNAMIC_REV 1 /* V2 format w/ dynamic inode sizes */
+#define EXT4_GOOD_OLD_REV 0 /* The good old (original) format */
+#define EXT4_DYNAMIC_REV 1 /* V2 format w/ dynamic inode sizes */
-#define EXT3_CURRENT_REV EXT3_GOOD_OLD_REV
-#define EXT3_MAX_SUPP_REV EXT3_DYNAMIC_REV
+#define EXT4_CURRENT_REV EXT4_GOOD_OLD_REV
+#define EXT4_MAX_SUPP_REV EXT4_DYNAMIC_REV
-#define EXT3_GOOD_OLD_INODE_SIZE 128
+#define EXT4_GOOD_OLD_INODE_SIZE 128
/*
* Feature set definitions
*/
-#define EXT3_HAS_COMPAT_FEATURE(sb,mask) \
- ( EXT3_SB(sb)->s_es->s_feature_compat & cpu_to_le32(mask) )
-#define EXT3_HAS_RO_COMPAT_FEATURE(sb,mask) \
- ( EXT3_SB(sb)->s_es->s_feature_ro_compat & cpu_to_le32(mask) )
-#define EXT3_HAS_INCOMPAT_FEATURE(sb,mask) \
- ( EXT3_SB(sb)->s_es->s_feature_incompat & cpu_to_le32(mask) )
-#define EXT3_SET_COMPAT_FEATURE(sb,mask) \
- EXT3_SB(sb)->s_es->s_feature_compat |= cpu_to_le32(mask)
-#define EXT3_SET_RO_COMPAT_FEATURE(sb,mask) \
- EXT3_SB(sb)->s_es->s_feature_ro_compat |= cpu_to_le32(mask)
-#define EXT3_SET_INCOMPAT_FEATURE(sb,mask) \
- EXT3_SB(sb)->s_es->s_feature_incompat |= cpu_to_le32(mask)
-#define EXT3_CLEAR_COMPAT_FEATURE(sb,mask) \
- EXT3_SB(sb)->s_es->s_feature_compat &= ~cpu_to_le32(mask)
-#define EXT3_CLEAR_RO_COMPAT_FEATURE(sb,mask) \
- EXT3_SB(sb)->s_es->s_feature_ro_compat &= ~cpu_to_le32(mask)
-#define EXT3_CLEAR_INCOMPAT_FEATURE(sb,mask) \
- EXT3_SB(sb)->s_es->s_feature_incompat &= ~cpu_to_le32(mask)
-
-#define EXT3_FEATURE_COMPAT_DIR_PREALLOC 0x0001
-#define EXT3_FEATURE_COMPAT_IMAGIC_INODES 0x0002
-#define EXT3_FEATURE_COMPAT_HAS_JOURNAL 0x0004
-#define EXT3_FEATURE_COMPAT_EXT_ATTR 0x0008
-#define EXT3_FEATURE_COMPAT_RESIZE_INODE 0x0010
-#define EXT3_FEATURE_COMPAT_DIR_INDEX 0x0020
-
-#define EXT3_FEATURE_RO_COMPAT_SPARSE_SUPER 0x0001
-#define EXT3_FEATURE_RO_COMPAT_LARGE_FILE 0x0002
-#define EXT3_FEATURE_RO_COMPAT_BTREE_DIR 0x0004
-
-#define EXT3_FEATURE_INCOMPAT_COMPRESSION 0x0001
-#define EXT3_FEATURE_INCOMPAT_FILETYPE 0x0002
-#define EXT3_FEATURE_INCOMPAT_RECOVER 0x0004 /* Needs recovery */
-#define EXT3_FEATURE_INCOMPAT_JOURNAL_DEV 0x0008 /* Journal device */
-#define EXT3_FEATURE_INCOMPAT_META_BG 0x0010
-
-#define EXT3_FEATURE_COMPAT_SUPP EXT2_FEATURE_COMPAT_EXT_ATTR
-#define EXT3_FEATURE_INCOMPAT_SUPP (EXT3_FEATURE_INCOMPAT_FILETYPE| \
- EXT3_FEATURE_INCOMPAT_RECOVER| \
- EXT3_FEATURE_INCOMPAT_META_BG)
-#define EXT3_FEATURE_RO_COMPAT_SUPP (EXT3_FEATURE_RO_COMPAT_SPARSE_SUPER| \
- EXT3_FEATURE_RO_COMPAT_LARGE_FILE| \
- EXT3_FEATURE_RO_COMPAT_BTREE_DIR)
+#define EXT4_HAS_COMPAT_FEATURE(sb,mask) \
+ ( EXT4_SB(sb)->s_es->s_feature_compat & cpu_to_le32(mask) )
+#define EXT4_HAS_RO_COMPAT_FEATURE(sb,mask) \
+ ( EXT4_SB(sb)->s_es->s_feature_ro_compat & cpu_to_le32(mask) )
+#define EXT4_HAS_INCOMPAT_FEATURE(sb,mask) \
+ ( EXT4_SB(sb)->s_es->s_feature_incompat & cpu_to_le32(mask) )
+#define EXT4_SET_COMPAT_FEATURE(sb,mask) \
+ EXT4_SB(sb)->s_es->s_feature_compat |= cpu_to_le32(mask)
+#define EXT4_SET_RO_COMPAT_FEATURE(sb,mask) \
+ EXT4_SB(sb)->s_es->s_feature_ro_compat |= cpu_to_le32(mask)
+#define EXT4_SET_INCOMPAT_FEATURE(sb,mask) \
+ EXT4_SB(sb)->s_es->s_feature_incompat |= cpu_to_le32(mask)
+#define EXT4_CLEAR_COMPAT_FEATURE(sb,mask) \
+ EXT4_SB(sb)->s_es->s_feature_compat &= ~cpu_to_le32(mask)
+#define EXT4_CLEAR_RO_COMPAT_FEATURE(sb,mask) \
+ EXT4_SB(sb)->s_es->s_feature_ro_compat &= ~cpu_to_le32(mask)
+#define EXT4_CLEAR_INCOMPAT_FEATURE(sb,mask) \
+ EXT4_SB(sb)->s_es->s_feature_incompat &= ~cpu_to_le32(mask)
+
+#define EXT4_FEATURE_COMPAT_DIR_PREALLOC 0x0001
+#define EXT4_FEATURE_COMPAT_IMAGIC_INODES 0x0002
+#define EXT4_FEATURE_COMPAT_HAS_JOURNAL 0x0004
+#define EXT4_FEATURE_COMPAT_EXT_ATTR 0x0008
+#define EXT4_FEATURE_COMPAT_RESIZE_INODE 0x0010
+#define EXT4_FEATURE_COMPAT_DIR_INDEX 0x0020
+
+#define EXT4_FEATURE_RO_COMPAT_SPARSE_SUPER 0x0001
+#define EXT4_FEATURE_RO_COMPAT_LARGE_FILE 0x0002
+#define EXT4_FEATURE_RO_COMPAT_BTREE_DIR 0x0004
+
+#define EXT4_FEATURE_INCOMPAT_COMPRESSION 0x0001
+#define EXT4_FEATURE_INCOMPAT_FILETYPE 0x0002
+#define EXT4_FEATURE_INCOMPAT_RECOVER 0x0004 /* Needs recovery */
+#define EXT4_FEATURE_INCOMPAT_JOURNAL_DEV 0x0008 /* Journal device */
+#define EXT4_FEATURE_INCOMPAT_META_BG 0x0010
+
+#define EXT4_FEATURE_COMPAT_SUPP EXT2_FEATURE_COMPAT_EXT_ATTR
+#define EXT4_FEATURE_INCOMPAT_SUPP (EXT4_FEATURE_INCOMPAT_FILETYPE| \
+ EXT4_FEATURE_INCOMPAT_RECOVER| \
+ EXT4_FEATURE_INCOMPAT_META_BG)
+#define EXT4_FEATURE_RO_COMPAT_SUPP (EXT4_FEATURE_RO_COMPAT_SPARSE_SUPER| \
+ EXT4_FEATURE_RO_COMPAT_LARGE_FILE| \
+ EXT4_FEATURE_RO_COMPAT_BTREE_DIR)
/*
* Default values for user and/or group using reserved blocks
*/
-#define EXT3_DEF_RESUID 0
-#define EXT3_DEF_RESGID 0
+#define EXT4_DEF_RESUID 0
+#define EXT4_DEF_RESGID 0
/*
* Default mount options
*/
-#define EXT3_DEFM_DEBUG 0x0001
-#define EXT3_DEFM_BSDGROUPS 0x0002
-#define EXT3_DEFM_XATTR_USER 0x0004
-#define EXT3_DEFM_ACL 0x0008
-#define EXT3_DEFM_UID16 0x0010
-#define EXT3_DEFM_JMODE 0x0060
-#define EXT3_DEFM_JMODE_DATA 0x0020
-#define EXT3_DEFM_JMODE_ORDERED 0x0040
-#define EXT3_DEFM_JMODE_WBACK 0x0060
+#define EXT4_DEFM_DEBUG 0x0001
+#define EXT4_DEFM_BSDGROUPS 0x0002
+#define EXT4_DEFM_XATTR_USER 0x0004
+#define EXT4_DEFM_ACL 0x0008
+#define EXT4_DEFM_UID16 0x0010
+#define EXT4_DEFM_JMODE 0x0060
+#define EXT4_DEFM_JMODE_DATA 0x0020
+#define EXT4_DEFM_JMODE_ORDERED 0x0040
+#define EXT4_DEFM_JMODE_WBACK 0x0060
/*
* Structure of a directory entry
*/
-#define EXT3_NAME_LEN 255
+#define EXT4_NAME_LEN 255
-struct ext3_dir_entry {
+struct ext4_dir_entry {
__le32 inode; /* Inode number */
__le16 rec_len; /* Directory entry length */
__le16 name_len; /* Name length */
- char name[EXT3_NAME_LEN]; /* File name */
+ char name[EXT4_NAME_LEN]; /* File name */
};
/*
- * The new version of the directory entry. Since EXT3 structures are
+ * The new version of the directory entry. Since EXT4 structures are
* stored in intel byte order, and the name_len field could never be
* bigger than 255 chars, it's safe to reclaim the extra byte for the
* file_type field.
*/
-struct ext3_dir_entry_2 {
+struct ext4_dir_entry_2 {
__le32 inode; /* Inode number */
__le16 rec_len; /* Directory entry length */
__u8 name_len; /* Name length */
__u8 file_type;
- char name[EXT3_NAME_LEN]; /* File name */
+ char name[EXT4_NAME_LEN]; /* File name */
};
/*
- * Ext3 directory file types. Only the low 3 bits are used. The
+ * Ext4 directory file types. Only the low 3 bits are used. The
* other bits are reserved for now.
*/
-#define EXT3_FT_UNKNOWN 0
-#define EXT3_FT_REG_FILE 1
-#define EXT3_FT_DIR 2
-#define EXT3_FT_CHRDEV 3
-#define EXT3_FT_BLKDEV 4
-#define EXT3_FT_FIFO 5
-#define EXT3_FT_SOCK 6
-#define EXT3_FT_SYMLINK 7
+#define EXT4_FT_UNKNOWN 0
+#define EXT4_FT_REG_FILE 1
+#define EXT4_FT_DIR 2
+#define EXT4_FT_CHRDEV 3
+#define EXT4_FT_BLKDEV 4
+#define EXT4_FT_FIFO 5
+#define EXT4_FT_SOCK 6
+#define EXT4_FT_SYMLINK 7
-#define EXT3_FT_MAX 8
+#define EXT4_FT_MAX 8
/*
- * EXT3_DIR_PAD defines the directory entries boundaries
+ * EXT4_DIR_PAD defines the directory entries boundaries
*
* NOTE: It must be a multiple of 4
*/
-#define EXT3_DIR_PAD 4
-#define EXT3_DIR_ROUND (EXT3_DIR_PAD - 1)
-#define EXT3_DIR_REC_LEN(name_len) (((name_len) + 8 + EXT3_DIR_ROUND) & \
- ~EXT3_DIR_ROUND)
+#define EXT4_DIR_PAD 4
+#define EXT4_DIR_ROUND (EXT4_DIR_PAD - 1)
+#define EXT4_DIR_REC_LEN(name_len) (((name_len) + 8 + EXT4_DIR_ROUND) & \
+ ~EXT4_DIR_ROUND)
/*
* Hash Tree Directory indexing
* (c) Daniel Phillips, 2001
*/
-#ifdef CONFIG_EXT3_INDEX
- #define is_dx(dir) (EXT3_HAS_COMPAT_FEATURE(dir->i_sb, \
- EXT3_FEATURE_COMPAT_DIR_INDEX) && \
- (EXT3_I(dir)->i_flags & EXT3_INDEX_FL))
-#define EXT3_DIR_LINK_MAX(dir) (!is_dx(dir) && (dir)->i_nlink >= EXT3_LINK_MAX)
-#define EXT3_DIR_LINK_EMPTY(dir) ((dir)->i_nlink == 2 || (dir)->i_nlink == 1)
+#ifdef CONFIG_EXT4_INDEX
+ #define is_dx(dir) (EXT4_HAS_COMPAT_FEATURE(dir->i_sb, \
+ EXT4_FEATURE_COMPAT_DIR_INDEX) && \
+ (EXT4_I(dir)->i_flags & EXT4_INDEX_FL))
+#define EXT4_DIR_LINK_MAX(dir) (!is_dx(dir) && (dir)->i_nlink >= EXT4_LINK_MAX)
+#define EXT4_DIR_LINK_EMPTY(dir) ((dir)->i_nlink == 2 || (dir)->i_nlink == 1)
#else
#define is_dx(dir) 0
-#define EXT3_DIR_LINK_MAX(dir) ((dir)->i_nlink >= EXT3_LINK_MAX)
-#define EXT3_DIR_LINK_EMPTY(dir) ((dir)->i_nlink == 2)
+#define EXT4_DIR_LINK_MAX(dir) ((dir)->i_nlink >= EXT4_LINK_MAX)
+#define EXT4_DIR_LINK_EMPTY(dir) ((dir)->i_nlink == 2)
#endif
/* Legal values for the dx_root hash_version field: */
u32 *seed;
};
-#define EXT3_HTREE_EOF 0x7fffffff
+#define EXT4_HTREE_EOF 0x7fffffff
/*
- * Control parameters used by ext3_htree_next_block
+ * Control parameters used by ext4_htree_next_block
*/
#define HASH_NB_ALWAYS 1
/*
* Describe an inode's exact location on disk and in memory
*/
-struct ext3_iloc
+struct ext4_iloc
{
struct buffer_head *bh;
unsigned long offset;
unsigned long block_group;
};
-static inline struct ext3_inode *ext3_raw_inode(struct ext3_iloc *iloc)
+static inline struct ext4_inode *ext4_raw_inode(struct ext4_iloc *iloc)
{
- return (struct ext3_inode *) (iloc->bh->b_data + iloc->offset);
+ return (struct ext4_inode *) (iloc->bh->b_data + iloc->offset);
}
/*
};
/* calculate the first block number of the group */
-static inline ext3_fsblk_t
-ext3_group_first_block_no(struct super_block *sb, unsigned long group_no)
+static inline ext4_fsblk_t
+ext4_group_first_block_no(struct super_block *sb, unsigned long group_no)
{
- return group_no * (ext3_fsblk_t)EXT3_BLOCKS_PER_GROUP(sb) +
- le32_to_cpu(EXT3_SB(sb)->s_es->s_first_data_block);
+ return group_no * (ext4_fsblk_t)EXT4_BLOCKS_PER_GROUP(sb) +
+ le32_to_cpu(EXT4_SB(sb)->s_es->s_first_data_block);
}
/*
/*
* Ok, these declarations are also in <linux/kernel.h> but none of the
- * ext3 source programs needs to include it so they are duplicated here.
+ * ext4 source programs needs to include it so they are duplicated here.
*/
# define NORET_TYPE /**/
# define ATTRIB_NORET __attribute__((noreturn))
# define NORET_AND noreturn,
/* balloc.c */
-extern int ext3_bg_has_super(struct super_block *sb, int group);
-extern unsigned long ext3_bg_num_gdb(struct super_block *sb, int group);
-extern ext3_fsblk_t ext3_new_block (handle_t *handle, struct inode *inode,
- ext3_fsblk_t goal, int *errp);
-extern ext3_fsblk_t ext3_new_blocks (handle_t *handle, struct inode *inode,
- ext3_fsblk_t goal, unsigned long *count, int *errp);
-extern void ext3_free_blocks (handle_t *handle, struct inode *inode,
- ext3_fsblk_t block, unsigned long count);
-extern void ext3_free_blocks_sb (handle_t *handle, struct super_block *sb,
- ext3_fsblk_t block, unsigned long count,
+extern int ext4_bg_has_super(struct super_block *sb, int group);
+extern unsigned long ext4_bg_num_gdb(struct super_block *sb, int group);
+extern ext4_fsblk_t ext4_new_block (handle_t *handle, struct inode *inode,
+ ext4_fsblk_t goal, int *errp);
+extern ext4_fsblk_t ext4_new_blocks (handle_t *handle, struct inode *inode,
+ ext4_fsblk_t goal, unsigned long *count, int *errp);
+extern void ext4_free_blocks (handle_t *handle, struct inode *inode,
+ ext4_fsblk_t block, unsigned long count);
+extern void ext4_free_blocks_sb (handle_t *handle, struct super_block *sb,
+ ext4_fsblk_t block, unsigned long count,
unsigned long *pdquot_freed_blocks);
-extern ext3_fsblk_t ext3_count_free_blocks (struct super_block *);
-extern void ext3_check_blocks_bitmap (struct super_block *);
-extern struct ext3_group_desc * ext3_get_group_desc(struct super_block * sb,
+extern ext4_fsblk_t ext4_count_free_blocks (struct super_block *);
+extern void ext4_check_blocks_bitmap (struct super_block *);
+extern struct ext4_group_desc * ext4_get_group_desc(struct super_block * sb,
unsigned int block_group,
struct buffer_head ** bh);
-extern int ext3_should_retry_alloc(struct super_block *sb, int *retries);
-extern void ext3_init_block_alloc_info(struct inode *);
-extern void ext3_rsv_window_add(struct super_block *sb, struct ext3_reserve_window_node *rsv);
+extern int ext4_should_retry_alloc(struct super_block *sb, int *retries);
+extern void ext4_init_block_alloc_info(struct inode *);
+extern void ext4_rsv_window_add(struct super_block *sb, struct ext4_reserve_window_node *rsv);
/* dir.c */
-extern int ext3_check_dir_entry(const char *, struct inode *,
- struct ext3_dir_entry_2 *,
+extern int ext4_check_dir_entry(const char *, struct inode *,
+ struct ext4_dir_entry_2 *,
struct buffer_head *, unsigned long);
-extern int ext3_htree_store_dirent(struct file *dir_file, __u32 hash,
+extern int ext4_htree_store_dirent(struct file *dir_file, __u32 hash,
__u32 minor_hash,
- struct ext3_dir_entry_2 *dirent);
-extern void ext3_htree_free_dir_info(struct dir_private_info *p);
+ struct ext4_dir_entry_2 *dirent);
+extern void ext4_htree_free_dir_info(struct dir_private_info *p);
/* fsync.c */
-extern int ext3_sync_file (struct file *, struct dentry *, int);
+extern int ext4_sync_file (struct file *, struct dentry *, int);
/* hash.c */
-extern int ext3fs_dirhash(const char *name, int len, struct
+extern int ext4fs_dirhash(const char *name, int len, struct
dx_hash_info *hinfo);
/* ialloc.c */
-extern struct inode * ext3_new_inode (handle_t *, struct inode *, int);
-extern void ext3_free_inode (handle_t *, struct inode *);
-extern struct inode * ext3_orphan_get (struct super_block *, unsigned long);
-extern unsigned long ext3_count_free_inodes (struct super_block *);
-extern unsigned long ext3_count_dirs (struct super_block *);
-extern void ext3_check_inodes_bitmap (struct super_block *);
-extern unsigned long ext3_count_free (struct buffer_head *, unsigned);
+extern struct inode * ext4_new_inode (handle_t *, struct inode *, int);
+extern void ext4_free_inode (handle_t *, struct inode *);
+extern struct inode * ext4_orphan_get (struct super_block *, unsigned long);
+extern unsigned long ext4_count_free_inodes (struct super_block *);
+extern unsigned long ext4_count_dirs (struct super_block *);
+extern void ext4_check_inodes_bitmap (struct super_block *);
+extern unsigned long ext4_count_free (struct buffer_head *, unsigned);
/* inode.c */
-int ext3_forget(handle_t *handle, int is_metadata, struct inode *inode,
- struct buffer_head *bh, ext3_fsblk_t blocknr);
-struct buffer_head * ext3_getblk (handle_t *, struct inode *, long, int, int *);
-struct buffer_head * ext3_bread (handle_t *, struct inode *, int, int, int *);
-int ext3_get_blocks_handle(handle_t *handle, struct inode *inode,
+int ext4_forget(handle_t *handle, int is_metadata, struct inode *inode,
+ struct buffer_head *bh, ext4_fsblk_t blocknr);
+struct buffer_head * ext4_getblk (handle_t *, struct inode *, long, int, int *);
+struct buffer_head * ext4_bread (handle_t *, struct inode *, int, int, int *);
+int ext4_get_blocks_handle(handle_t *handle, struct inode *inode,
sector_t iblock, unsigned long maxblocks, struct buffer_head *bh_result,
int create, int extend_disksize);
-extern void ext3_read_inode (struct inode *);
-extern int ext3_write_inode (struct inode *, int);
-extern int ext3_setattr (struct dentry *, struct iattr *);
-extern void ext3_delete_inode (struct inode *);
-extern int ext3_sync_inode (handle_t *, struct inode *);
-extern void ext3_discard_reservation (struct inode *);
-extern void ext3_dirty_inode(struct inode *);
-extern int ext3_change_inode_journal_flag(struct inode *, int);
-extern int ext3_get_inode_loc(struct inode *, struct ext3_iloc *);
-extern void ext3_truncate (struct inode *);
-extern void ext3_set_inode_flags(struct inode *);
-extern void ext3_set_aops(struct inode *inode);
+extern void ext4_read_inode (struct inode *);
+extern int ext4_write_inode (struct inode *, int);
+extern int ext4_setattr (struct dentry *, struct iattr *);
+extern void ext4_delete_inode (struct inode *);
+extern int ext4_sync_inode (handle_t *, struct inode *);
+extern void ext4_discard_reservation (struct inode *);
+extern void ext4_dirty_inode(struct inode *);
+extern int ext4_change_inode_journal_flag(struct inode *, int);
+extern int ext4_get_inode_loc(struct inode *, struct ext4_iloc *);
+extern void ext4_truncate (struct inode *);
+extern void ext4_set_inode_flags(struct inode *);
+extern void ext4_set_aops(struct inode *inode);
/* ioctl.c */
-extern int ext3_ioctl (struct inode *, struct file *, unsigned int,
+extern int ext4_ioctl (struct inode *, struct file *, unsigned int,
unsigned long);
-extern long ext3_compat_ioctl (struct file *, unsigned int, unsigned long);
+extern long ext4_compat_ioctl (struct file *, unsigned int, unsigned long);
/* namei.c */
-extern int ext3_orphan_add(handle_t *, struct inode *);
-extern int ext3_orphan_del(handle_t *, struct inode *);
-extern int ext3_htree_fill_tree(struct file *dir_file, __u32 start_hash,
+extern int ext4_orphan_add(handle_t *, struct inode *);
+extern int ext4_orphan_del(handle_t *, struct inode *);
+extern int ext4_htree_fill_tree(struct file *dir_file, __u32 start_hash,
__u32 start_minor_hash, __u32 *next_hash);
/* resize.c */
-extern int ext3_group_add(struct super_block *sb,
- struct ext3_new_group_data *input);
-extern int ext3_group_extend(struct super_block *sb,
- struct ext3_super_block *es,
- ext3_fsblk_t n_blocks_count);
+extern int ext4_group_add(struct super_block *sb,
+ struct ext4_new_group_data *input);
+extern int ext4_group_extend(struct super_block *sb,
+ struct ext4_super_block *es,
+ ext4_fsblk_t n_blocks_count);
/* super.c */
-extern void ext3_error (struct super_block *, const char *, const char *, ...)
+extern void ext4_error (struct super_block *, const char *, const char *, ...)
__attribute__ ((format (printf, 3, 4)));
-extern void __ext3_std_error (struct super_block *, const char *, int);
-extern void ext3_abort (struct super_block *, const char *, const char *, ...)
+extern void __ext4_std_error (struct super_block *, const char *, int);
+extern void ext4_abort (struct super_block *, const char *, const char *, ...)
__attribute__ ((format (printf, 3, 4)));
-extern void ext3_warning (struct super_block *, const char *, const char *, ...)
+extern void ext4_warning (struct super_block *, const char *, const char *, ...)
__attribute__ ((format (printf, 3, 4)));
-extern void ext3_update_dynamic_rev (struct super_block *sb);
+extern void ext4_update_dynamic_rev (struct super_block *sb);
-#define ext3_std_error(sb, errno) \
+#define ext4_std_error(sb, errno) \
do { \
if ((errno)) \
- __ext3_std_error((sb), __FUNCTION__, (errno)); \
+ __ext4_std_error((sb), __FUNCTION__, (errno)); \
} while (0)
/*
*/
/* dir.c */
-extern const struct file_operations ext3_dir_operations;
+extern const struct file_operations ext4_dir_operations;
/* file.c */
-extern struct inode_operations ext3_file_inode_operations;
-extern const struct file_operations ext3_file_operations;
+extern struct inode_operations ext4_file_inode_operations;
+extern const struct file_operations ext4_file_operations;
/* namei.c */
-extern struct inode_operations ext3_dir_inode_operations;
-extern struct inode_operations ext3_special_inode_operations;
+extern struct inode_operations ext4_dir_inode_operations;
+extern struct inode_operations ext4_special_inode_operations;
/* symlink.c */
-extern struct inode_operations ext3_symlink_inode_operations;
-extern struct inode_operations ext3_fast_symlink_inode_operations;
+extern struct inode_operations ext4_symlink_inode_operations;
+extern struct inode_operations ext4_fast_symlink_inode_operations;
#endif /* __KERNEL__ */
-#endif /* _LINUX_EXT3_FS_H */
+#endif /* _LINUX_EXT4_FS_H */
/*
- * linux/include/linux/ext3_fs_i.h
+ * linux/include/linux/ext4_fs_i.h
*
* Copyright (C) 1992, 1993, 1994, 1995
* Remy Card (card@masi.ibp.fr)
* Copyright (C) 1991, 1992 Linus Torvalds
*/
-#ifndef _LINUX_EXT3_FS_I
-#define _LINUX_EXT3_FS_I
+#ifndef _LINUX_EXT4_FS_I
+#define _LINUX_EXT4_FS_I
#include <linux/rwsem.h>
#include <linux/rbtree.h>
#include <linux/mutex.h>
/* data type for block offset of block group */
-typedef int ext3_grpblk_t;
+typedef int ext4_grpblk_t;
/* data type for filesystem-wide blocks number */
-typedef unsigned long ext3_fsblk_t;
+typedef unsigned long ext4_fsblk_t;
#define E3FSBLK "%lu"
-struct ext3_reserve_window {
- ext3_fsblk_t _rsv_start; /* First byte reserved */
- ext3_fsblk_t _rsv_end; /* Last byte reserved or 0 */
+struct ext4_reserve_window {
+ ext4_fsblk_t _rsv_start; /* First byte reserved */
+ ext4_fsblk_t _rsv_end; /* Last byte reserved or 0 */
};
-struct ext3_reserve_window_node {
+struct ext4_reserve_window_node {
struct rb_node rsv_node;
__u32 rsv_goal_size;
__u32 rsv_alloc_hit;
- struct ext3_reserve_window rsv_window;
+ struct ext4_reserve_window rsv_window;
};
-struct ext3_block_alloc_info {
+struct ext4_block_alloc_info {
/* information about reservation window */
- struct ext3_reserve_window_node rsv_window_node;
+ struct ext4_reserve_window_node rsv_window_node;
/*
- * was i_next_alloc_block in ext3_inode_info
+ * was i_next_alloc_block in ext4_inode_info
* is the logical (file-relative) number of the
* most-recently-allocated block in this file.
* We use this for detecting linearly ascending allocation requests.
*/
__u32 last_alloc_logical_block;
/*
- * Was i_next_alloc_goal in ext3_inode_info
+ * Was i_next_alloc_goal in ext4_inode_info
* is the *physical* companion to i_next_alloc_block.
* it the the physical block number of the block which was most-recentl
* allocated to this file. This give us the goal (target) for the next
* allocation when we detect linearly ascending requests.
*/
- ext3_fsblk_t last_alloc_physical_block;
+ ext4_fsblk_t last_alloc_physical_block;
};
#define rsv_start rsv_window._rsv_start
/*
* third extended file system inode data in memory
*/
-struct ext3_inode_info {
+struct ext4_inode_info {
__le32 i_data[15]; /* unconverted */
__u32 i_flags;
-#ifdef EXT3_FRAGMENTS
+#ifdef EXT4_FRAGMENTS
__u32 i_faddr;
__u8 i_frag_no;
__u8 i_frag_size;
#endif
- ext3_fsblk_t i_file_acl;
+ ext4_fsblk_t i_file_acl;
__u32 i_dir_acl;
__u32 i_dtime;
* near to their parent directory's inode.
*/
__u32 i_block_group;
- __u32 i_state; /* Dynamic state flags for ext3 */
+ __u32 i_state; /* Dynamic state flags for ext4 */
/* block reservation info */
- struct ext3_block_alloc_info *i_block_alloc_info;
+ struct ext4_block_alloc_info *i_block_alloc_info;
__u32 i_dir_start_lookup;
-#ifdef CONFIG_EXT3_FS_XATTR
+#ifdef CONFIG_EXT4DEV_FS_XATTR
/*
* Extended attributes can be read independently of the main file
* data. Taking i_mutex even when reading would cause contention
*/
struct rw_semaphore xattr_sem;
#endif
-#ifdef CONFIG_EXT3_FS_POSIX_ACL
+#ifdef CONFIG_EXT4DEV_FS_POSIX_ACL
struct posix_acl *i_acl;
struct posix_acl *i_default_acl;
#endif
/*
* i_disksize keeps track of what the inode size is ON DISK, not
* in memory. During truncate, i_size is set to the new size by
- * the VFS prior to calling ext3_truncate(), but the filesystem won't
+ * the VFS prior to calling ext4_truncate(), but the filesystem won't
* set i_disksize to 0 until the truncate is actually under way.
*
* The intent is that i_disksize always represents the blocks which
*
* The only time when i_disksize and i_size may be different is when
* a truncate is in progress. The only things which change i_disksize
- * are ext3_get_block (growth) and ext3_truncate (shrinkth).
+ * are ext4_get_block (growth) and ext4_truncate (shrinkth).
*/
loff_t i_disksize;
__u16 i_extra_isize;
/*
- * truncate_mutex is for serialising ext3_truncate() against
- * ext3_getblock(). In the 2.4 ext2 design, great chunks of inode's
+ * truncate_mutex is for serialising ext4_truncate() against
+ * ext4_getblock(). In the 2.4 ext2 design, great chunks of inode's
* data tree are chopped off during truncate. We can't do that in
- * ext3 because whenever we perform intermediate commits during
+ * ext4 because whenever we perform intermediate commits during
* truncate, the inode and all the metadata blocks *must* be in a
* consistent state which allows truncation of the orphans to restart
* during recovery. Hence we must fix the get_block-vs-truncate race
struct inode vfs_inode;
};
-#endif /* _LINUX_EXT3_FS_I */
+#endif /* _LINUX_EXT4_FS_I */
/*
- * linux/include/linux/ext3_fs_sb.h
+ * linux/include/linux/ext4_fs_sb.h
*
* Copyright (C) 1992, 1993, 1994, 1995
* Remy Card (card@masi.ibp.fr)
* Copyright (C) 1991, 1992 Linus Torvalds
*/
-#ifndef _LINUX_EXT3_FS_SB
-#define _LINUX_EXT3_FS_SB
+#ifndef _LINUX_EXT4_FS_SB
+#define _LINUX_EXT4_FS_SB
#ifdef __KERNEL__
#include <linux/timer.h>
/*
* third extended-fs super-block data in memory
*/
-struct ext3_sb_info {
+struct ext4_sb_info {
unsigned long s_frag_size; /* Size of a fragment in bytes */
unsigned long s_frags_per_block;/* Number of fragments per block */
unsigned long s_inodes_per_block;/* Number of inodes per block */
unsigned long s_desc_per_block; /* Number of group descriptors per block */
unsigned long s_groups_count; /* Number of groups in the fs */
struct buffer_head * s_sbh; /* Buffer containing the super block */
- struct ext3_super_block * s_es; /* Pointer to the super block in the buffer */
+ struct ext4_super_block * s_es; /* Pointer to the super block in the buffer */
struct buffer_head ** s_group_desc;
unsigned long s_mount_opt;
uid_t s_resuid;
/* root of the per fs reservation window tree */
spinlock_t s_rsv_window_lock;
struct rb_root s_rsv_window_root;
- struct ext3_reserve_window_node s_rsv_window_head;
+ struct ext4_reserve_window_node s_rsv_window_head;
/* Journaling */
struct inode * s_journal_inode;
#endif
};
-#endif /* _LINUX_EXT3_FS_SB */
+#endif /* _LINUX_EXT4_FS_SB */
/*
- * linux/include/linux/ext3_jbd.h
+ * linux/include/linux/ext4_jbd.h
*
* Written by Stephen C. Tweedie <sct@redhat.com>, 1999
*
* the terms of the GNU General Public License, version 2, or at your
* option, any later version, incorporated herein by reference.
*
- * Ext3-specific journaling extensions.
+ * Ext4-specific journaling extensions.
*/
-#ifndef _LINUX_EXT3_JBD_H
-#define _LINUX_EXT3_JBD_H
+#ifndef _LINUX_EXT4_JBD_H
+#define _LINUX_EXT4_JBD_H
#include <linux/fs.h>
#include <linux/jbd.h>
-#include <linux/ext3_fs.h>
+#include <linux/ext4_fs.h>
-#define EXT3_JOURNAL(inode) (EXT3_SB((inode)->i_sb)->s_journal)
+#define EXT4_JOURNAL(inode) (EXT4_SB((inode)->i_sb)->s_journal)
/* Define the number of blocks we need to account to a transaction to
* modify one block of data.
* indirection blocks, the group and superblock summaries, and the data
* block to complete the transaction. */
-#define EXT3_SINGLEDATA_TRANS_BLOCKS 8U
+#define EXT4_SINGLEDATA_TRANS_BLOCKS 8U
/* Extended attribute operations touch at most two data buffers,
* two bitmap buffers, and two group summaries, in addition to the inode
* and the superblock, which are already accounted for. */
-#define EXT3_XATTR_TRANS_BLOCKS 6U
+#define EXT4_XATTR_TRANS_BLOCKS 6U
/* Define the minimum size for a transaction which modifies data. This
* needs to take into account the fact that we may end up modifying two
* superblock only gets updated once, of course, so don't bother
* counting that again for the quota updates. */
-#define EXT3_DATA_TRANS_BLOCKS(sb) (EXT3_SINGLEDATA_TRANS_BLOCKS + \
- EXT3_XATTR_TRANS_BLOCKS - 2 + \
- 2*EXT3_QUOTA_TRANS_BLOCKS(sb))
+#define EXT4_DATA_TRANS_BLOCKS(sb) (EXT4_SINGLEDATA_TRANS_BLOCKS + \
+ EXT4_XATTR_TRANS_BLOCKS - 2 + \
+ 2*EXT4_QUOTA_TRANS_BLOCKS(sb))
/* Delete operations potentially hit one directory's namespace plus an
* entire inode, plus arbitrary amounts of bitmap/indirection data. Be
* generous. We can grow the delete transaction later if necessary. */
-#define EXT3_DELETE_TRANS_BLOCKS(sb) (2 * EXT3_DATA_TRANS_BLOCKS(sb) + 64)
+#define EXT4_DELETE_TRANS_BLOCKS(sb) (2 * EXT4_DATA_TRANS_BLOCKS(sb) + 64)
/* Define an arbitrary limit for the amount of data we will anticipate
* writing to any given transaction. For unbounded transactions such as
* start off at the maximum transaction size and grow the transaction
* optimistically as we go. */
-#define EXT3_MAX_TRANS_DATA 64U
+#define EXT4_MAX_TRANS_DATA 64U
/* We break up a large truncate or write transaction once the handle's
* buffer credits gets this low, we need either to extend the
* one block, plus two quota updates. Quota allocations are not
* needed. */
-#define EXT3_RESERVE_TRANS_BLOCKS 12U
+#define EXT4_RESERVE_TRANS_BLOCKS 12U
-#define EXT3_INDEX_EXTRA_TRANS_BLOCKS 8
+#define EXT4_INDEX_EXTRA_TRANS_BLOCKS 8
#ifdef CONFIG_QUOTA
/* Amount of blocks needed for quota update - we know that the structure was
* allocated so we need to update only inode+data */
-#define EXT3_QUOTA_TRANS_BLOCKS(sb) (test_opt(sb, QUOTA) ? 2 : 0)
+#define EXT4_QUOTA_TRANS_BLOCKS(sb) (test_opt(sb, QUOTA) ? 2 : 0)
/* Amount of blocks needed for quota insert/delete - we do some block writes
* but inode, sb and group updates are done only once */
-#define EXT3_QUOTA_INIT_BLOCKS(sb) (test_opt(sb, QUOTA) ? (DQUOT_INIT_ALLOC*\
- (EXT3_SINGLEDATA_TRANS_BLOCKS-3)+3+DQUOT_INIT_REWRITE) : 0)
-#define EXT3_QUOTA_DEL_BLOCKS(sb) (test_opt(sb, QUOTA) ? (DQUOT_DEL_ALLOC*\
- (EXT3_SINGLEDATA_TRANS_BLOCKS-3)+3+DQUOT_DEL_REWRITE) : 0)
+#define EXT4_QUOTA_INIT_BLOCKS(sb) (test_opt(sb, QUOTA) ? (DQUOT_INIT_ALLOC*\
+ (EXT4_SINGLEDATA_TRANS_BLOCKS-3)+3+DQUOT_INIT_REWRITE) : 0)
+#define EXT4_QUOTA_DEL_BLOCKS(sb) (test_opt(sb, QUOTA) ? (DQUOT_DEL_ALLOC*\
+ (EXT4_SINGLEDATA_TRANS_BLOCKS-3)+3+DQUOT_DEL_REWRITE) : 0)
#else
-#define EXT3_QUOTA_TRANS_BLOCKS(sb) 0
-#define EXT3_QUOTA_INIT_BLOCKS(sb) 0
-#define EXT3_QUOTA_DEL_BLOCKS(sb) 0
+#define EXT4_QUOTA_TRANS_BLOCKS(sb) 0
+#define EXT4_QUOTA_INIT_BLOCKS(sb) 0
+#define EXT4_QUOTA_DEL_BLOCKS(sb) 0
#endif
int
-ext3_mark_iloc_dirty(handle_t *handle,
+ext4_mark_iloc_dirty(handle_t *handle,
struct inode *inode,
- struct ext3_iloc *iloc);
+ struct ext4_iloc *iloc);
/*
* On success, We end up with an outstanding reference count against
* iloc->bh. This _must_ be cleaned up later.
*/
-int ext3_reserve_inode_write(handle_t *handle, struct inode *inode,
- struct ext3_iloc *iloc);
+int ext4_reserve_inode_write(handle_t *handle, struct inode *inode,
+ struct ext4_iloc *iloc);
-int ext3_mark_inode_dirty(handle_t *handle, struct inode *inode);
+int ext4_mark_inode_dirty(handle_t *handle, struct inode *inode);
/*
- * Wrapper functions with which ext3 calls into JBD. The intent here is
- * to allow these to be turned into appropriate stubs so ext3 can control
- * ext2 filesystems, so ext2+ext3 systems only nee one fs. This work hasn't
+ * Wrapper functions with which ext4 calls into JBD. The intent here is
+ * to allow these to be turned into appropriate stubs so ext4 can control
+ * ext2 filesystems, so ext2+ext4 systems only nee one fs. This work hasn't
* been done yet.
*/
-void ext3_journal_abort_handle(const char *caller, const char *err_fn,
+void ext4_journal_abort_handle(const char *caller, const char *err_fn,
struct buffer_head *bh, handle_t *handle, int err);
static inline int
-__ext3_journal_get_undo_access(const char *where, handle_t *handle,
+__ext4_journal_get_undo_access(const char *where, handle_t *handle,
struct buffer_head *bh)
{
int err = journal_get_undo_access(handle, bh);
if (err)
- ext3_journal_abort_handle(where, __FUNCTION__, bh, handle,err);
+ ext4_journal_abort_handle(where, __FUNCTION__, bh, handle,err);
return err;
}
static inline int
-__ext3_journal_get_write_access(const char *where, handle_t *handle,
+__ext4_journal_get_write_access(const char *where, handle_t *handle,
struct buffer_head *bh)
{
int err = journal_get_write_access(handle, bh);
if (err)
- ext3_journal_abort_handle(where, __FUNCTION__, bh, handle,err);
+ ext4_journal_abort_handle(where, __FUNCTION__, bh, handle,err);
return err;
}
static inline void
-ext3_journal_release_buffer(handle_t *handle, struct buffer_head *bh)
+ext4_journal_release_buffer(handle_t *handle, struct buffer_head *bh)
{
journal_release_buffer(handle, bh);
}
static inline int
-__ext3_journal_forget(const char *where, handle_t *handle, struct buffer_head *bh)
+__ext4_journal_forget(const char *where, handle_t *handle, struct buffer_head *bh)
{
int err = journal_forget(handle, bh);
if (err)
- ext3_journal_abort_handle(where, __FUNCTION__, bh, handle,err);
+ ext4_journal_abort_handle(where, __FUNCTION__, bh, handle,err);
return err;
}
static inline int
-__ext3_journal_revoke(const char *where, handle_t *handle,
+__ext4_journal_revoke(const char *where, handle_t *handle,
unsigned long blocknr, struct buffer_head *bh)
{
int err = journal_revoke(handle, blocknr, bh);
if (err)
- ext3_journal_abort_handle(where, __FUNCTION__, bh, handle,err);
+ ext4_journal_abort_handle(where, __FUNCTION__, bh, handle,err);
return err;
}
static inline int
-__ext3_journal_get_create_access(const char *where,
+__ext4_journal_get_create_access(const char *where,
handle_t *handle, struct buffer_head *bh)
{
int err = journal_get_create_access(handle, bh);
if (err)
- ext3_journal_abort_handle(where, __FUNCTION__, bh, handle,err);
+ ext4_journal_abort_handle(where, __FUNCTION__, bh, handle,err);
return err;
}
static inline int
-__ext3_journal_dirty_metadata(const char *where,
+__ext4_journal_dirty_metadata(const char *where,
handle_t *handle, struct buffer_head *bh)
{
int err = journal_dirty_metadata(handle, bh);
if (err)
- ext3_journal_abort_handle(where, __FUNCTION__, bh, handle,err);
+ ext4_journal_abort_handle(where, __FUNCTION__, bh, handle,err);
return err;
}
-#define ext3_journal_get_undo_access(handle, bh) \
- __ext3_journal_get_undo_access(__FUNCTION__, (handle), (bh))
-#define ext3_journal_get_write_access(handle, bh) \
- __ext3_journal_get_write_access(__FUNCTION__, (handle), (bh))
-#define ext3_journal_revoke(handle, blocknr, bh) \
- __ext3_journal_revoke(__FUNCTION__, (handle), (blocknr), (bh))
-#define ext3_journal_get_create_access(handle, bh) \
- __ext3_journal_get_create_access(__FUNCTION__, (handle), (bh))
-#define ext3_journal_dirty_metadata(handle, bh) \
- __ext3_journal_dirty_metadata(__FUNCTION__, (handle), (bh))
-#define ext3_journal_forget(handle, bh) \
- __ext3_journal_forget(__FUNCTION__, (handle), (bh))
+#define ext4_journal_get_undo_access(handle, bh) \
+ __ext4_journal_get_undo_access(__FUNCTION__, (handle), (bh))
+#define ext4_journal_get_write_access(handle, bh) \
+ __ext4_journal_get_write_access(__FUNCTION__, (handle), (bh))
+#define ext4_journal_revoke(handle, blocknr, bh) \
+ __ext4_journal_revoke(__FUNCTION__, (handle), (blocknr), (bh))
+#define ext4_journal_get_create_access(handle, bh) \
+ __ext4_journal_get_create_access(__FUNCTION__, (handle), (bh))
+#define ext4_journal_dirty_metadata(handle, bh) \
+ __ext4_journal_dirty_metadata(__FUNCTION__, (handle), (bh))
+#define ext4_journal_forget(handle, bh) \
+ __ext4_journal_forget(__FUNCTION__, (handle), (bh))
-int ext3_journal_dirty_data(handle_t *handle, struct buffer_head *bh);
+int ext4_journal_dirty_data(handle_t *handle, struct buffer_head *bh);
-handle_t *ext3_journal_start_sb(struct super_block *sb, int nblocks);
-int __ext3_journal_stop(const char *where, handle_t *handle);
+handle_t *ext4_journal_start_sb(struct super_block *sb, int nblocks);
+int __ext4_journal_stop(const char *where, handle_t *handle);
-static inline handle_t *ext3_journal_start(struct inode *inode, int nblocks)
+static inline handle_t *ext4_journal_start(struct inode *inode, int nblocks)
{
- return ext3_journal_start_sb(inode->i_sb, nblocks);
+ return ext4_journal_start_sb(inode->i_sb, nblocks);
}
-#define ext3_journal_stop(handle) \
- __ext3_journal_stop(__FUNCTION__, (handle))
+#define ext4_journal_stop(handle) \
+ __ext4_journal_stop(__FUNCTION__, (handle))
-static inline handle_t *ext3_journal_current_handle(void)
+static inline handle_t *ext4_journal_current_handle(void)
{
return journal_current_handle();
}
-static inline int ext3_journal_extend(handle_t *handle, int nblocks)
+static inline int ext4_journal_extend(handle_t *handle, int nblocks)
{
return journal_extend(handle, nblocks);
}
-static inline int ext3_journal_restart(handle_t *handle, int nblocks)
+static inline int ext4_journal_restart(handle_t *handle, int nblocks)
{
return journal_restart(handle, nblocks);
}
-static inline int ext3_journal_blocks_per_page(struct inode *inode)
+static inline int ext4_journal_blocks_per_page(struct inode *inode)
{
return journal_blocks_per_page(inode);
}
-static inline int ext3_journal_force_commit(journal_t *journal)
+static inline int ext4_journal_force_commit(journal_t *journal)
{
return journal_force_commit(journal);
}
/* super.c */
-int ext3_force_commit(struct super_block *sb);
+int ext4_force_commit(struct super_block *sb);
-static inline int ext3_should_journal_data(struct inode *inode)
+static inline int ext4_should_journal_data(struct inode *inode)
{
if (!S_ISREG(inode->i_mode))
return 1;
- if (test_opt(inode->i_sb, DATA_FLAGS) == EXT3_MOUNT_JOURNAL_DATA)
+ if (test_opt(inode->i_sb, DATA_FLAGS) == EXT4_MOUNT_JOURNAL_DATA)
return 1;
- if (EXT3_I(inode)->i_flags & EXT3_JOURNAL_DATA_FL)
+ if (EXT4_I(inode)->i_flags & EXT4_JOURNAL_DATA_FL)
return 1;
return 0;
}
-static inline int ext3_should_order_data(struct inode *inode)
+static inline int ext4_should_order_data(struct inode *inode)
{
if (!S_ISREG(inode->i_mode))
return 0;
- if (EXT3_I(inode)->i_flags & EXT3_JOURNAL_DATA_FL)
+ if (EXT4_I(inode)->i_flags & EXT4_JOURNAL_DATA_FL)
return 0;
- if (test_opt(inode->i_sb, DATA_FLAGS) == EXT3_MOUNT_ORDERED_DATA)
+ if (test_opt(inode->i_sb, DATA_FLAGS) == EXT4_MOUNT_ORDERED_DATA)
return 1;
return 0;
}
-static inline int ext3_should_writeback_data(struct inode *inode)
+static inline int ext4_should_writeback_data(struct inode *inode)
{
if (!S_ISREG(inode->i_mode))
return 0;
- if (EXT3_I(inode)->i_flags & EXT3_JOURNAL_DATA_FL)
+ if (EXT4_I(inode)->i_flags & EXT4_JOURNAL_DATA_FL)
return 0;
- if (test_opt(inode->i_sb, DATA_FLAGS) == EXT3_MOUNT_WRITEBACK_DATA)
+ if (test_opt(inode->i_sb, DATA_FLAGS) == EXT4_MOUNT_WRITEBACK_DATA)
return 1;
return 0;
}
-#endif /* _LINUX_EXT3_JBD_H */
+#endif /* _LINUX_EXT4_JBD_H */
git.openpandora.org / pandora-kernel.git / commitdiff