* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs-2.6: (41 commits)
fs: add documentation on fallocate hole punching
Gfs2: fail if we try to use hole punch
Btrfs: fail if we try to use hole punch
Ext4: fail if we try to use hole punch
Ocfs2: handle hole punching via fallocate properly
XFS: handle hole punching via fallocate properly
fs: add hole punching to fallocate
vfs: pass struct file to do_truncate on O_TRUNC opens (try #2)
fix signedness mess in rw_verify_area() on 64bit architectures
fs: fix kernel-doc for dcache::prepend_path
fs: fix kernel-doc for dcache::d_validate
sanitize ecryptfs ->mount()
switch afs
move internal-only parts of ncpfs headers to fs/ncpfs
switch ncpfs
switch 9p
pass default dentry_operations to mount_pseudo()
switch hostfs
switch affs
switch configfs
...
on many or all directory inodes on the way down a path walk (to check for
exec permission). These must now be rcu-walk aware (flags & IPERM_RCU). See
Documentation/filesystems/vfs.txt for more details.
+
+--
+[mandatory]
+ In ->fallocate() you must check the mode option passed in. If your
+filesystem does not support hole punching (deallocating space in the middle of a
+file) you must return -EOPNOTSUPP if FALLOC_FL_PUNCH_HOLE is set in mode.
+Currently you can only have FALLOC_FL_PUNCH_HOLE with FALLOC_FL_KEEP_SIZE set,
+so the i_size should not change when hole punching, even when puching the end of
+a file off.
STL_BOARDMAGIC 0xa2267f52 stlbrd include/linux/stallion.h
ENI155_MAGIC 0xa54b872d midway_eprom drivers/atm/eni.h
SCI_MAGIC 0xbabeface gs_port drivers/char/sh-sci.h
-CODA_MAGIC 0xC0DAC0DA coda_file_info include/linux/coda_fs_i.h
+CODA_MAGIC 0xC0DAC0DA coda_file_info fs/coda/coda_fs_i.h
DPMEM_MAGIC 0xc0ffee11 gdt_pci_sram drivers/scsi/gdth.h
STLI_PORTMAGIC 0xe671c7a1 stliport include/linux/istallion.h
YAM_MAGIC 0xF10A7654 yam_port drivers/net/hamradio/yam.c
return get_unmapped_area(file, addr, len, pgoff, flags);
}
+/* forward declaration */
+static static const struct dentry_operations pfmfs_dentry_operations;
static struct dentry *
pfmfs_mount(struct file_system_type *fs_type, int flags, const char *dev_name, void *data)
{
- return mount_pseudo(fs_type, "pfm:", NULL, PFMFS_MAGIC);
+ return mount_pseudo(fs_type, "pfm:", NULL, &pfmfs_dentry_operations,
+ PFMFS_MAGIC);
}
static struct file_system_type pfm_fs_type = {
}
path.mnt = mntget(pfmfs_mnt);
- d_set_d_op(path.dentry, &pfmfs_dentry_operations);
d_add(path.dentry, inode);
file = alloc_file(&path, FMODE_READ, &pfm_file_ops);
static struct dentry *mtd_inodefs_mount(struct file_system_type *fs_type,
int flags, const char *dev_name, void *data)
{
- return mount_pseudo(fs_type, "mtd_inode:", NULL, MTD_INODE_FS_MAGIC);
+ return mount_pseudo(fs_type, "mtd_inode:", NULL, NULL, MTD_INODE_FS_MAGIC);
}
static struct file_system_type mtd_inodefs_type = {
if (dentry) {
alias = d_materialise_unique(dentry, &npi->vfs_inode);
if (alias)
- dput(dentry);
+ dput(alias);
}
dput(dentry);
void
smb_new_dentry(struct dentry *dentry)
{
- struct smb_sb_info *server = server_from_dentry(dentry);
-
- if (server->mnt->flags & SMB_MOUNT_CASE)
- d_set_d_op(dentry, &smbfs_dentry_operations_case);
- else
- d_set_d_op(dentry, &smbfs_dentry_operations);
dentry->d_time = jiffies;
}
struct smb_fattr finfo;
struct inode *inode;
int error;
- struct smb_sb_info *server;
error = -ENAMETOOLONG;
if (dentry->d_name.len > SMB_MAXNAMELEN)
inode = smb_iget(dir->i_sb, &finfo);
if (inode) {
add_entry:
- server = server_from_dentry(dentry);
- if (server->mnt->flags & SMB_MOUNT_CASE)
- d_set_d_op(dentry, &smbfs_dentry_operations_case);
- else
- d_set_d_op(dentry, &smbfs_dentry_operations);
-
d_add(dentry, inode);
smb_renew_times(dentry);
error = 0;
printk(KERN_ERR "smbfs: failed to start smbiod\n");
goto out_no_smbiod;
}
+ if (server->mnt->flags & SMB_MOUNT_CASE)
+ sb->s_d_op = &smbfs_dentry_operations_case;
+ else
+ sb->s_d_op = &smbfs_dentry_operations;
/*
* Keep the super block locked while we get the root inode.
extern const struct file_operations smb_dir_operations;
extern const struct inode_operations smb_dir_inode_operations;
extern const struct inode_operations smb_dir_inode_operations_unix;
+extern const struct dentry_operations smbfs_dentry_operations_case;
+extern const struct dentry_operations smbfs_dentry_operations;
extern void smb_new_dentry(struct dentry *dentry);
extern void smb_renew_times(struct dentry *dentry);
/* cache.c */
int v9fs_dir_release(struct inode *inode, struct file *filp);
int v9fs_file_open(struct inode *inode, struct file *file);
void v9fs_inode2stat(struct inode *inode, struct p9_wstat *stat);
-void v9fs_dentry_release(struct dentry *);
int v9fs_uflags2omode(int uflags, int extended);
ssize_t v9fs_file_readn(struct file *, char *, char __user *, u32, u64);
*
*/
-void v9fs_dentry_release(struct dentry *dentry)
+static void v9fs_dentry_release(struct dentry *dentry)
{
struct v9fs_dentry *dent;
struct p9_fid *temp, *current_fid;
goto error_iput;
inst_out:
- if (v9ses->cache)
- d_set_d_op(dentry, &v9fs_cached_dentry_operations);
- else
- d_set_d_op(dentry, &v9fs_dentry_operations);
-
d_add(dentry, inode);
return NULL;
}
v9fs_fill_super(sb, v9ses, flags, data);
+ if (v9ses->cache)
+ sb->s_d_op = &v9fs_cached_dentry_operations;
+ else
+ sb->s_d_op = &v9fs_dentry_operations;
+
inode = v9fs_get_inode(sb, S_IFDIR | mode);
if (IS_ERR(inode)) {
retval = PTR_ERR(inode);
P9_DPRINTK(P9_DEBUG_VFS, " %p\n", s);
- if (s->s_root)
- v9fs_dentry_release(s->s_root); /* clunk root */
-
kill_anon_super(s);
v9fs_session_cancel(v9ses);
struct object_info obj;
int error;
- d_set_d_op(dentry, &adfs_dentry_operations);
lock_kernel();
error = adfs_dir_lookup_byname(dir, &dentry->d_name, &obj);
if (error == 0) {
asb->s_namelen = ADFS_F_NAME_LEN;
}
+ sb->s_d_op = &adfs_dentry_operations;
root = adfs_iget(sb, &root_obj);
sb->s_root = d_alloc_root(root);
if (!sb->s_root) {
kfree(asb->s_map);
adfs_error(sb, "get root inode failed\n");
goto error;
- } else
- d_set_d_op(sb->s_root, &adfs_dentry_operations);
+ }
unlock_kernel();
return 0;
extern const struct address_space_operations affs_aops_ofs;
extern const struct dentry_operations affs_dentry_operations;
+extern const struct dentry_operations affs_intl_dentry_operations;
static inline void
affs_set_blocksize(struct super_block *sb, int size)
.d_compare = affs_compare_dentry,
};
-static const struct dentry_operations affs_intl_dentry_operations = {
+const struct dentry_operations affs_intl_dentry_operations = {
.d_hash = affs_intl_hash_dentry,
.d_compare = affs_intl_compare_dentry,
};
if (IS_ERR(inode))
return ERR_CAST(inode);
}
- d_set_d_op(dentry, AFFS_SB(sb)->s_flags & SF_INTL ? &affs_intl_dentry_operations : &affs_dentry_operations);
d_add(dentry, inode);
return NULL;
}
goto out_error_noinode;
}
+ if (AFFS_SB(sb)->s_flags & SF_INTL)
+ sb->s_d_op = &affs_intl_dentry_operations;
+ else
+ sb->s_d_op = &affs_dentry_operations;
+
sb->s_root = d_alloc_root(root_inode);
if (!sb->s_root) {
printk(KERN_ERR "AFFS: Get root inode failed\n");
goto out_error;
}
- d_set_d_op(sb->s_root, &affs_dentry_operations);
pr_debug("AFFS: s_flags=%lX\n",sb->s_flags);
return 0;
.setattr = afs_setattr,
};
-static const struct dentry_operations afs_fs_dentry_operations = {
+const struct dentry_operations afs_fs_dentry_operations = {
.d_revalidate = afs_d_revalidate,
.d_delete = afs_d_delete,
.d_release = afs_d_release,
}
success:
- d_set_d_op(dentry, &afs_fs_dentry_operations);
-
d_add(dentry, inode);
_leave(" = 0 { vn=%u u=%u } -> { ino=%lu v=%llu }",
fid.vnode,
* dir.c
*/
extern const struct inode_operations afs_dir_inode_operations;
+extern const struct dentry_operations afs_fs_dentry_operations;
extern const struct file_operations afs_dir_file_operations;
/*
if (!root)
goto error;
+ sb->s_d_op = &afs_fs_dentry_operations;
sb->s_root = root;
_leave(" = 0");
static struct inode *anon_inode_inode;
static const struct file_operations anon_inode_fops;
-static struct dentry *anon_inodefs_mount(struct file_system_type *fs_type,
- int flags, const char *dev_name, void *data)
-{
- return mount_pseudo(fs_type, "anon_inode:", NULL, ANON_INODE_FS_MAGIC);
-}
-
/*
* anon_inodefs_dname() is called from d_path().
*/
dentry->d_name.name);
}
+static const struct dentry_operations anon_inodefs_dentry_operations = {
+ .d_dname = anon_inodefs_dname,
+};
+
+static struct dentry *anon_inodefs_mount(struct file_system_type *fs_type,
+ int flags, const char *dev_name, void *data)
+{
+ return mount_pseudo(fs_type, "anon_inode:", NULL,
+ &anon_inodefs_dentry_operations, ANON_INODE_FS_MAGIC);
+}
+
static struct file_system_type anon_inode_fs_type = {
.name = "anon_inodefs",
.mount = anon_inodefs_mount,
.kill_sb = kill_anon_super,
};
-static const struct dentry_operations anon_inodefs_dentry_operations = {
- .d_dname = anon_inodefs_dname,
-};
/*
* nop .set_page_dirty method so that people can use .page_mkwrite on
*/
ihold(anon_inode_inode);
- d_set_d_op(path.dentry, &anon_inodefs_dentry_operations);
d_instantiate(path.dentry, anon_inode_inode);
error = -ENFILE;
static struct dentry *bd_mount(struct file_system_type *fs_type,
int flags, const char *dev_name, void *data)
{
- return mount_pseudo(fs_type, "bdev:", &bdev_sops, 0x62646576);
+ return mount_pseudo(fs_type, "bdev:", &bdev_sops, NULL, 0x62646576);
}
static struct file_system_type bd_type = {
{
struct btrfs_fs_info *fs_info = btrfs_sb(sb)->fs_info;
struct btrfs_root *root;
- struct dentry *dentry;
struct inode *inode;
struct btrfs_key key;
int index;
return ERR_PTR(-ESTALE);
}
- dentry = d_obtain_alias(inode);
- if (!IS_ERR(dentry))
- d_set_d_op(dentry, &btrfs_dentry_operations);
- return dentry;
+ return d_obtain_alias(inode);
fail:
srcu_read_unlock(&fs_info->subvol_srcu, index);
return ERR_PTR(err);
static struct dentry *btrfs_get_parent(struct dentry *child)
{
struct inode *dir = child->d_inode;
- struct dentry *dentry;
struct btrfs_root *root = BTRFS_I(dir)->root;
struct btrfs_path *path;
struct extent_buffer *leaf;
key.type = BTRFS_INODE_ITEM_KEY;
key.offset = 0;
- dentry = d_obtain_alias(btrfs_iget(root->fs_info->sb, &key, root, NULL));
- if (!IS_ERR(dentry))
- d_set_d_op(dentry, &btrfs_dentry_operations);
- return dentry;
+ return d_obtain_alias(btrfs_iget(root->fs_info->sb, &key, root, NULL));
fail:
btrfs_free_path(path);
return ERR_PTR(ret);
int index;
int ret;
- d_set_d_op(dentry, &btrfs_dentry_operations);
-
if (dentry->d_name.len > BTRFS_NAME_LEN)
return ERR_PTR(-ENAMETOOLONG);
alloc_start = offset & ~mask;
alloc_end = (offset + len + mask) & ~mask;
+ /* We only support the FALLOC_FL_KEEP_SIZE mode */
+ if (mode && (mode != FALLOC_FL_KEEP_SIZE))
+ return -EOPNOTSUPP;
+
/*
* wait for ordered IO before we have any locks. We'll loop again
* below with the locks held.
sb->s_maxbytes = MAX_LFS_FILESIZE;
sb->s_magic = BTRFS_SUPER_MAGIC;
sb->s_op = &btrfs_super_ops;
+ sb->s_d_op = &btrfs_dentry_operations;
sb->s_export_op = &btrfs_export_ops;
sb->s_xattr = btrfs_xattr_handlers;
sb->s_time_gran = 1;
goto out_no_root;
}
+ /* do that *after* d_alloc_root() - we want NULL ->d_op for root here */
+ if (cifs_sb_master_tcon(cifs_sb)->nocase)
+ sb->s_d_op = &cifs_ci_dentry_ops;
+ else
+ sb->s_d_op = &cifs_dentry_ops;
+
#ifdef CONFIG_CIFS_EXPERIMENTAL
if (cifs_sb->mnt_cifs_flags & CIFS_MOUNT_SERVER_INUM) {
cFYI(1, "export ops supported");
return full_path;
}
-static void setup_cifs_dentry(struct cifsTconInfo *tcon,
- struct dentry *direntry,
- struct inode *newinode)
-{
- if (tcon->nocase)
- d_set_d_op(direntry, &cifs_ci_dentry_ops);
- else
- d_set_d_op(direntry, &cifs_dentry_ops);
- d_instantiate(direntry, newinode);
-}
-
/* Inode operations in similar order to how they appear in Linux file fs.h */
int
cifs_create_set_dentry:
if (rc == 0)
- setup_cifs_dentry(tcon, direntry, newinode);
+ d_instantiate(direntry, newinode);
else
cFYI(1, "Create worked, get_inode_info failed rc = %d", rc);
rc = cifs_get_inode_info_unix(&newinode, full_path,
inode->i_sb, xid);
- if (pTcon->nocase)
- d_set_d_op(direntry, &cifs_ci_dentry_ops);
- else
- d_set_d_op(direntry, &cifs_dentry_ops);
if (rc == 0)
d_instantiate(direntry, newinode);
parent_dir_inode->i_sb, xid, NULL);
if ((rc == 0) && (newInode != NULL)) {
- if (pTcon->nocase)
- d_set_d_op(direntry, &cifs_ci_dentry_ops);
- else
- d_set_d_op(direntry, &cifs_dentry_ops);
d_add(direntry, newInode);
if (posix_open) {
filp = lookup_instantiate_filp(nd, direntry,
} else if (rc == -ENOENT) {
rc = 0;
direntry->d_time = jiffies;
- if (pTcon->nocase)
- d_set_d_op(direntry, &cifs_ci_dentry_ops);
- else
- d_set_d_op(direntry, &cifs_dentry_ops);
d_add(direntry, NULL);
/* if it was once a directory (but how can we tell?) we could do
shrink_dcache_parent(direntry); */
/*BB check (cifs_sb->mnt_cifs_flags & CIFS_MOUNT_SET_UID ) to see if need
to set uid/gid */
inc_nlink(inode);
- if (pTcon->nocase)
- d_set_d_op(direntry, &cifs_ci_dentry_ops);
- else
- d_set_d_op(direntry, &cifs_dentry_ops);
cifs_unix_basic_to_fattr(&fattr, pInfo, cifs_sb);
cifs_fill_uniqueid(inode->i_sb, &fattr);
rc = cifs_get_inode_info(&newinode, full_path, NULL,
inode->i_sb, xid, NULL);
- if (pTcon->nocase)
- d_set_d_op(direntry, &cifs_ci_dentry_ops);
- else
- d_set_d_op(direntry, &cifs_dentry_ops);
d_instantiate(direntry, newinode);
/* setting nlink not necessary except in cases where we
* failed to get it from the server or was set bogus */
cFYI(1, "Create symlink ok, getinodeinfo fail rc = %d",
rc);
} else {
- if (pTcon->nocase)
- d_set_d_op(direntry, &cifs_ci_dentry_ops);
- else
- d_set_d_op(direntry, &cifs_dentry_ops);
d_instantiate(direntry, newinode);
}
}
return NULL;
}
- if (cifs_sb_master_tcon(CIFS_SB(sb))->nocase)
- d_set_d_op(dentry, &cifs_ci_dentry_ops);
- else
- d_set_d_op(dentry, &cifs_dentry_ops);
-
alias = d_materialise_unique(dentry, inode);
if (alias != NULL) {
dput(dentry);
#include <linux/spinlock.h>
#include <linux/coda.h>
-#include <linux/coda_linux.h>
#include <linux/coda_psdev.h>
-#include <linux/coda_fs_i.h>
-#include <linux/coda_cache.h>
+#include "coda_linux.h"
+#include "coda_cache.h"
static atomic_t permission_epoch = ATOMIC_INIT(0);
#include <linux/time.h>
#include <linux/coda.h>
-#include <linux/coda_linux.h>
-#include <linux/coda_fs_i.h>
#include <linux/coda_psdev.h>
+#include "coda_linux.h"
static inline int coda_fideq(struct CodaFid *fid1, struct CodaFid *fid2)
{
#include <linux/string.h>
#include <linux/coda.h>
-#include <linux/coda_linux.h>
#include <linux/coda_psdev.h>
-#include <linux/coda_fs_i.h>
+#include "coda_linux.h"
/* initialize the debugging variables */
int coda_fake_statfs;
#include <linux/wait.h>
#include <linux/types.h>
#include <linux/fs.h>
-#include <linux/coda_fs_i.h>
+#include "coda_fs_i.h"
/* operations */
extern const struct inode_operations coda_dir_inode_operations;
extern const struct inode_operations coda_file_inode_operations;
extern const struct inode_operations coda_ioctl_inode_operations;
+extern const struct dentry_operations coda_dentry_operations;
+
extern const struct address_space_operations coda_file_aops;
extern const struct address_space_operations coda_symlink_aops;
#include <asm/uaccess.h>
#include <linux/coda.h>
-#include <linux/coda_linux.h>
#include <linux/coda_psdev.h>
-#include <linux/coda_fs_i.h>
-#include <linux/coda_cache.h>
+#include "coda_linux.h"
+#include "coda_cache.h"
#include "coda_int.h"
}
#define CODA_EIO_ERROR ((void *) (coda_return_EIO))
-static const struct dentry_operations coda_dentry_operations =
+const struct dentry_operations coda_dentry_operations =
{
.d_revalidate = coda_dentry_revalidate,
.d_delete = coda_dentry_delete,
return ERR_PTR(error);
exit:
- d_set_d_op(entry, &coda_dentry_operations);
-
if (inode && (type & CODA_NOCACHE))
coda_flag_inode(inode, C_VATTR | C_PURGE);
#include <asm/uaccess.h>
#include <linux/coda.h>
-#include <linux/coda_linux.h>
-#include <linux/coda_fs_i.h>
#include <linux/coda_psdev.h>
+#include "coda_linux.h"
#include "coda_int.h"
static ssize_t
#include <linux/vmalloc.h>
#include <linux/coda.h>
-#include <linux/coda_linux.h>
#include <linux/coda_psdev.h>
-#include <linux/coda_fs_i.h>
-#include <linux/coda_cache.h>
+#include "coda_linux.h"
+#include "coda_cache.h"
#include "coda_int.h"
sb->s_blocksize_bits = 12;
sb->s_magic = CODA_SUPER_MAGIC;
sb->s_op = &coda_super_operations;
+ sb->s_d_op = &coda_dentry_operations;
sb->s_bdi = &vc->bdi;
/* get root fid from Venus: this needs the root inode */
#include <asm/uaccess.h>
#include <linux/coda.h>
-#include <linux/coda_linux.h>
-#include <linux/coda_fs_i.h>
#include <linux/coda_psdev.h>
+#include "coda_linux.h"
+
/* pioctl ops */
static int coda_ioctl_permission(struct inode *inode, int mask, unsigned int flags);
static long coda_pioctl(struct file *filp, unsigned int cmd,
#include <asm/uaccess.h>
#include <linux/coda.h>
-#include <linux/coda_linux.h>
-#include <linux/coda_fs_i.h>
#include <linux/coda_psdev.h>
+#include "coda_linux.h"
+
#include "coda_int.h"
/* statistics */
#include <linux/pagemap.h>
#include <linux/coda.h>
-#include <linux/coda_linux.h>
#include <linux/coda_psdev.h>
-#include <linux/coda_fs_i.h>
+
+#include "coda_linux.h"
static int coda_symlink_filler(struct file *file, struct page *page)
{
#include <linux/vfs.h>
#include <linux/coda.h>
-#include <linux/coda_linux.h>
#include <linux/coda_psdev.h>
-#include <linux/coda_fs_i.h>
-#include <linux/coda_cache.h>
+#include "coda_linux.h"
+#include "coda_cache.h"
#include "coda_int.h"
extern const struct file_operations bin_fops;
extern const struct inode_operations configfs_dir_inode_operations;
extern const struct inode_operations configfs_symlink_inode_operations;
+extern const struct dentry_operations configfs_dentry_ops;
extern int configfs_symlink(struct inode *dir, struct dentry *dentry,
const char *symname);
return 1;
}
-static const struct dentry_operations configfs_dentry_ops = {
+const struct dentry_operations configfs_dentry_ops = {
.d_iput = configfs_d_iput,
/* simple_delete_dentry() isn't exported */
.d_delete = configfs_d_delete,
return error;
}
- d_set_d_op(dentry, &configfs_dentry_ops);
d_rehash(dentry);
return 0;
*/
if (dentry->d_name.len > NAME_MAX)
return ERR_PTR(-ENAMETOOLONG);
- d_set_d_op(dentry, &configfs_dentry_ops);
d_add(dentry, NULL);
return NULL;
}
ret = -ENOMEM;
child = d_alloc(parent, &name);
if (child) {
- d_set_d_op(child, &configfs_dentry_ops);
d_add(child, NULL);
ret = configfs_attach_group(&parent_group->cg_item,
err = -ENOMEM;
dentry = d_alloc(configfs_sb->s_root, &name);
if (dentry) {
- d_set_d_op(dentry, &configfs_dentry_ops);
d_add(dentry, NULL);
err = configfs_attach_group(sd->s_element, &group->cg_item,
configfs_root_group.cg_item.ci_dentry = root;
root->d_fsdata = &configfs_root;
sb->s_root = root;
+ sb->s_d_op = &configfs_dentry_ops; /* the rest get that */
return 0;
}
__dget_dlock(parent);
dentry->d_parent = parent;
dentry->d_sb = parent->d_sb;
+ d_set_d_op(dentry, dentry->d_sb->s_d_op);
list_add(&dentry->d_u.d_child, &parent->d_subdirs);
spin_unlock(&parent->d_lock);
}
struct dentry *dentry = d_alloc(NULL, name);
if (dentry) {
dentry->d_sb = sb;
+ d_set_d_op(dentry, dentry->d_sb->s_d_op);
dentry->d_parent = dentry;
dentry->d_flags |= DCACHE_DISCONNECTED;
}
res = d_alloc(NULL, &name);
if (res) {
res->d_sb = root_inode->i_sb;
+ d_set_d_op(res, res->d_sb->s_d_op);
res->d_parent = res;
d_instantiate(res, root_inode);
}
/* attach a disconnected dentry */
spin_lock(&tmp->d_lock);
tmp->d_sb = inode->i_sb;
+ d_set_d_op(tmp, tmp->d_sb->s_d_op);
tmp->d_inode = inode;
tmp->d_flags |= DCACHE_DISCONNECTED;
list_add(&tmp->d_alias, &inode->i_dentry);
/**
* d_validate - verify dentry provided from insecure source (deprecated)
* @dentry: The dentry alleged to be valid child of @dparent
- * @dparent: The parent dentry (known to be valid)
+ * @parent: The parent dentry (known to be valid)
*
* An insecure source has sent us a dentry, here we verify it and dget() it.
* This is used by ncpfs in its readdir implementation.
}
/**
- * Prepend path string to a buffer
- *
+ * prepend_path - Prepend path string to a buffer
* @path: the dentry/vfsmount to report
* @root: root vfsmnt/dentry (may be modified by this function)
* @buffer: pointer to the end of the buffer
struct qstr lower_name;
int rc = 0;
- d_set_d_op(ecryptfs_dentry, &ecryptfs_dops);
if ((ecryptfs_dentry->d_name.len == 1
&& !strcmp(ecryptfs_dentry->d_name.name, "."))
|| (ecryptfs_dentry->d_name.len == 2
return rc;
}
-/**
- * ecryptfs_interpose
- * @lower_dentry: Existing dentry in the lower filesystem
- * @dentry: ecryptfs' dentry
- * @sb: ecryptfs's super_block
- * @flags: flags to govern behavior of interpose procedure
- *
- * Interposes upper and lower dentries.
- *
- * Returns zero on success; non-zero otherwise
- */
-int ecryptfs_interpose(struct dentry *lower_dentry, struct dentry *dentry,
- struct super_block *sb, u32 flags)
+static inode *ecryptfs_get_inode(struct inode *lower_inode,
+ struct super_block *sb)
{
- struct inode *lower_inode;
struct inode *inode;
int rc = 0;
if (special_file(lower_inode->i_mode))
init_special_inode(inode, lower_inode->i_mode,
lower_inode->i_rdev);
- d_set_d_op(dentry, &ecryptfs_dops);
fsstack_copy_attr_all(inode, lower_inode);
/* This size will be overwritten for real files w/ headers and
* other metadata */
fsstack_copy_inode_size(inode, lower_inode);
+ return inode;
+out:
+ return ERR_PTR(rc);
+}
+
+/**
+ * ecryptfs_interpose
+ * @lower_dentry: Existing dentry in the lower filesystem
+ * @dentry: ecryptfs' dentry
+ * @sb: ecryptfs's super_block
+ * @flags: flags to govern behavior of interpose procedure
+ *
+ * Interposes upper and lower dentries.
+ *
+ * Returns zero on success; non-zero otherwise
+ */
+int ecryptfs_interpose(struct dentry *lower_dentry, struct dentry *dentry,
+ struct super_block *sb, u32 flags)
+{
+ struct inode *lower_inode = lower_dentry->d_inode;
+ struct inode *inode = ecryptfs_get_inode(lower_inode, sb);
+ if (IS_ERR(inode)
+ return PTR_ERR(inode);
if (flags & ECRYPTFS_INTERPOSE_FLAG_D_ADD)
d_add(dentry, inode);
else
d_instantiate(dentry, inode);
-out:
- return rc;
+ return 0;
}
enum { ecryptfs_opt_sig, ecryptfs_opt_ecryptfs_sig,
struct kmem_cache *ecryptfs_sb_info_cache;
static struct file_system_type ecryptfs_fs_type;
-/**
- * ecryptfs_read_super
- * @sb: The ecryptfs super block
- * @dev_name: The path to mount over
- *
- * Read the super block of the lower filesystem, and use
- * ecryptfs_interpose to create our initial inode and super block
- * struct.
- */
-static int ecryptfs_read_super(struct super_block *sb, const char *dev_name)
-{
- struct path path;
- int rc;
-
- rc = kern_path(dev_name, LOOKUP_FOLLOW | LOOKUP_DIRECTORY, &path);
- if (rc) {
- ecryptfs_printk(KERN_WARNING, "path_lookup() failed\n");
- goto out;
- }
- if (path.dentry->d_sb->s_type == &ecryptfs_fs_type) {
- rc = -EINVAL;
- printk(KERN_ERR "Mount on filesystem of type "
- "eCryptfs explicitly disallowed due to "
- "known incompatibilities\n");
- goto out_free;
- }
- ecryptfs_set_superblock_lower(sb, path.dentry->d_sb);
- sb->s_maxbytes = path.dentry->d_sb->s_maxbytes;
- sb->s_blocksize = path.dentry->d_sb->s_blocksize;
- ecryptfs_set_dentry_lower(sb->s_root, path.dentry);
- ecryptfs_set_dentry_lower_mnt(sb->s_root, path.mnt);
- rc = ecryptfs_interpose(path.dentry, sb->s_root, sb, 0);
- if (rc)
- goto out_free;
- rc = 0;
- goto out;
-out_free:
- path_put(&path);
-out:
- return rc;
-}
-
/**
* ecryptfs_get_sb
* @fs_type
* @flags
* @dev_name: The path to mount over
* @raw_data: The options passed into the kernel
- *
- * The whole ecryptfs_get_sb process is broken into 3 functions:
- * ecryptfs_parse_options(): handle options passed to ecryptfs, if any
- * ecryptfs_read_super(): this accesses the lower filesystem and uses
- * ecryptfs_interpose to perform most of the linking
- * ecryptfs_interpose(): links the lower filesystem into ecryptfs (inode.c)
*/
static struct dentry *ecryptfs_mount(struct file_system_type *fs_type, int flags,
const char *dev_name, void *raw_data)
struct ecryptfs_sb_info *sbi;
struct ecryptfs_dentry_info *root_info;
const char *err = "Getting sb failed";
+ struct inode *inode;
+ struct path path;
int rc;
sbi = kmem_cache_zalloc(ecryptfs_sb_info_cache, GFP_KERNEL);
s->s_flags = flags;
rc = bdi_setup_and_register(&sbi->bdi, "ecryptfs", BDI_CAP_MAP_COPY);
- if (rc) {
- deactivate_locked_super(s);
- goto out;
- }
+ if (rc)
+ goto out1;
ecryptfs_set_superblock_private(s, sbi);
s->s_bdi = &sbi->bdi;
/* ->kill_sb() will take care of sbi after that point */
sbi = NULL;
s->s_op = &ecryptfs_sops;
+ s->s_d_op = &ecryptfs_dops;
- rc = -ENOMEM;
- s->s_root = d_alloc(NULL, &(const struct qstr) {
- .hash = 0,.name = "/",.len = 1});
+ err = "Reading sb failed";
+ rc = kern_path(dev_name, LOOKUP_FOLLOW | LOOKUP_DIRECTORY, &path);
+ if (rc) {
+ ecryptfs_printk(KERN_WARNING, "kern_path() failed\n");
+ goto out1;
+ }
+ if (path.dentry->d_sb->s_type == &ecryptfs_fs_type) {
+ rc = -EINVAL;
+ printk(KERN_ERR "Mount on filesystem of type "
+ "eCryptfs explicitly disallowed due to "
+ "known incompatibilities\n");
+ goto out_free;
+ }
+ ecryptfs_set_superblock_lower(s, path.dentry->d_sb);
+ s->s_maxbytes = path.dentry->d_sb->s_maxbytes;
+ s->s_blocksize = path.dentry->d_sb->s_blocksize;
+
+ inode = ecryptfs_get_inode(path.dentry->d_inode, s);
+ rc = PTR_ERR(inode);
+ if (IS_ERR(inode))
+ goto out_free;
+
+ s->s_root = d_alloc_root(inode);
if (!s->s_root) {
- deactivate_locked_super(s);
- goto out;
+ iput(inode);
+ rc = -ENOMEM;
+ goto out_free;
}
- d_set_d_op(s->s_root, &ecryptfs_dops);
- s->s_root->d_sb = s;
- s->s_root->d_parent = s->s_root;
+ rc = -ENOMEM;
root_info = kmem_cache_zalloc(ecryptfs_dentry_info_cache, GFP_KERNEL);
- if (!root_info) {
- deactivate_locked_super(s);
- goto out;
- }
+ if (!root_info)
+ goto out_free;
+
/* ->kill_sb() will take care of root_info */
ecryptfs_set_dentry_private(s->s_root, root_info);
+ ecryptfs_set_dentry_lower(s->s_root, path.dentry);
+ ecryptfs_set_dentry_lower_mnt(s->s_root, path.mnt);
+
s->s_flags |= MS_ACTIVE;
- rc = ecryptfs_read_super(s, dev_name);
- if (rc) {
- deactivate_locked_super(s);
- err = "Reading sb failed";
- goto out;
- }
return dget(s->s_root);
+out_free:
+ path_put(&path);
+out1:
+ deactivate_locked_super(s);
out:
if (sbi) {
ecryptfs_destroy_mount_crypt_stat(&sbi->mount_crypt_stat);
struct ext4_map_blocks map;
unsigned int credits, blkbits = inode->i_blkbits;
+ /* We only support the FALLOC_FL_KEEP_SIZE mode */
+ if (mode && (mode != FALLOC_FL_KEEP_SIZE))
+ return -EOPNOTSUPP;
+
/*
* currently supporting (pre)allocate mode for extent-based
* files _only_
struct msdos_dir_entry *de, loff_t i_pos);
extern int fat_sync_inode(struct inode *inode);
extern int fat_fill_super(struct super_block *sb, void *data, int silent,
- const struct inode_operations *fs_dir_inode_ops, int isvfat);
+ const struct inode_operations *fs_dir_inode_ops,
+ int isvfat, void (*setup)(struct super_block *));
extern int fat_flush_inodes(struct super_block *sb, struct inode *i1,
struct inode *i2);
struct fid *fid, int fh_len, int fh_type)
{
struct inode *inode = NULL;
- struct dentry *result;
u32 *fh = fid->raw;
if (fh_len < 5 || fh_type != 3)
* the fat_iget lookup again. If that fails, then we are totally out
* of luck. But all that is for another day
*/
- result = d_obtain_alias(inode);
- if (!IS_ERR(result))
- d_set_d_op(result, sb->s_root->d_op);
- return result;
+ return d_obtain_alias(inode);
}
static int
brelse(bh);
parent = d_obtain_alias(inode);
- if (!IS_ERR(parent))
- d_set_d_op(parent, sb->s_root->d_op);
out:
unlock_super(sb);
* Read the super block of an MS-DOS FS.
*/
int fat_fill_super(struct super_block *sb, void *data, int silent,
- const struct inode_operations *fs_dir_inode_ops, int isvfat)
+ const struct inode_operations *fs_dir_inode_ops, int isvfat,
+ void (*setup)(struct super_block *))
{
struct inode *root_inode = NULL, *fat_inode = NULL;
struct buffer_head *bh;
if (error)
goto out_fail;
+ setup(sb); /* flavour-specific stuff that needs options */
+
error = -EIO;
sb_min_blocksize(sb, 512);
bh = sb_bread(sb, 0);
}
out:
unlock_super(sb);
- d_set_d_op(dentry, &msdos_dentry_operations);
- dentry = d_splice_alias(inode, dentry);
- if (dentry)
- d_set_d_op(dentry, &msdos_dentry_operations);
- return dentry;
+ return d_splice_alias(inode, dentry);
error:
unlock_super(sb);
.getattr = fat_getattr,
};
-static int msdos_fill_super(struct super_block *sb, void *data, int silent)
+static void setup(struct super_block *sb)
{
- int res;
-
- lock_super(sb);
- res = fat_fill_super(sb, data, silent, &msdos_dir_inode_operations, 0);
- if (res) {
- unlock_super(sb);
- return res;
- }
-
+ sb->s_d_op = &msdos_dentry_operations;
sb->s_flags |= MS_NOATIME;
- d_set_d_op(sb->s_root, &msdos_dentry_operations);
- unlock_super(sb);
- return 0;
+}
+
+static int msdos_fill_super(struct super_block *sb, void *data, int silent)
+{
+ return fat_fill_super(sb, data, silent, &msdos_dir_inode_operations,
+ 0, setup);
}
static struct dentry *msdos_mount(struct file_system_type *fs_type,
out:
unlock_super(sb);
- d_set_d_op(dentry, sb->s_root->d_op);
dentry->d_time = dentry->d_parent->d_inode->i_version;
dentry = d_splice_alias(inode, dentry);
- if (dentry) {
- d_set_d_op(dentry, sb->s_root->d_op);
+ if (dentry)
dentry->d_time = dentry->d_parent->d_inode->i_version;
- }
return dentry;
error:
.getattr = fat_getattr,
};
-static int vfat_fill_super(struct super_block *sb, void *data, int silent)
+static void setup(struct super_block *sb)
{
- int res;
-
- lock_super(sb);
- res = fat_fill_super(sb, data, silent, &vfat_dir_inode_operations, 1);
- if (res) {
- unlock_super(sb);
- return res;
- }
-
if (MSDOS_SB(sb)->options.name_check != 's')
- d_set_d_op(sb->s_root, &vfat_ci_dentry_ops);
+ sb->s_d_op = &vfat_ci_dentry_ops;
else
- d_set_d_op(sb->s_root, &vfat_dentry_ops);
+ sb->s_d_op = &vfat_dentry_ops;
+}
- unlock_super(sb);
- return 0;
+static int vfat_fill_super(struct super_block *sb, void *data, int silent)
+{
+ return fat_fill_super(sb, data, silent, &vfat_dir_inode_operations,
+ 1, setup);
}
static struct dentry *vfat_mount(struct file_system_type *fs_type,
}
entry = newent ? newent : entry;
- d_set_d_op(entry, &fuse_dentry_operations);
if (outarg_valid)
fuse_change_entry_timeout(entry, &outarg);
else
goto out_iput;
entry = d_obtain_alias(inode);
- if (!IS_ERR(entry) && get_node_id(inode) != FUSE_ROOT_ID) {
- d_set_d_op(entry, &fuse_dentry_operations);
+ if (!IS_ERR(entry) && get_node_id(inode) != FUSE_ROOT_ID)
fuse_invalidate_entry_cache(entry);
- }
return entry;
}
parent = d_obtain_alias(inode);
- if (!IS_ERR(parent) && get_node_id(inode) != FUSE_ROOT_ID) {
- d_set_d_op(parent, &fuse_dentry_operations);
+ if (!IS_ERR(parent) && get_node_id(inode) != FUSE_ROOT_ID)
fuse_invalidate_entry_cache(parent);
- }
return parent;
}
iput(root);
goto err_put_conn;
}
+ /* only now - we want root dentry with NULL ->d_op */
+ sb->s_d_op = &fuse_dentry_operations;
init_req = fuse_request_alloc();
if (!init_req)
static struct dentry *gfs2_get_parent(struct dentry *child)
{
- struct dentry *dentry;
-
- dentry = d_obtain_alias(gfs2_lookupi(child->d_inode, &gfs2_qdotdot, 1));
- if (!IS_ERR(dentry))
- d_set_d_op(dentry, &gfs2_dops);
- return dentry;
+ return d_obtain_alias(gfs2_lookupi(child->d_inode, &gfs2_qdotdot, 1));
}
static struct dentry *gfs2_get_dentry(struct super_block *sb,
{
struct gfs2_sbd *sdp = sb->s_fs_info;
struct inode *inode;
- struct dentry *dentry;
inode = gfs2_ilookup(sb, inum->no_addr);
if (inode) {
return ERR_CAST(inode);
out_inode:
- dentry = d_obtain_alias(inode);
- if (!IS_ERR(dentry))
- d_set_d_op(dentry, &gfs2_dops);
- return dentry;
+ return d_obtain_alias(inode);
}
static struct dentry *gfs2_fh_to_dentry(struct super_block *sb, struct fid *fid,
iput(inode);
return -ENOMEM;
}
- d_set_d_op(dentry, &gfs2_dops);
*dptr = dentry;
return 0;
}
sb->s_magic = GFS2_MAGIC;
sb->s_op = &gfs2_super_ops;
+ sb->s_d_op = &gfs2_dops;
sb->s_export_op = &gfs2_export_ops;
sb->s_xattr = gfs2_xattr_handlers;
sb->s_qcop = &gfs2_quotactl_ops;
{
struct inode *inode = NULL;
- d_set_d_op(dentry, &gfs2_dops);
-
inode = gfs2_lookupi(dir, &dentry->d_name, 0);
if (inode && IS_ERR(inode))
return ERR_CAST(inode);
loff_t next = (offset + len - 1) >> sdp->sd_sb.sb_bsize_shift;
next = (next + 1) << sdp->sd_sb.sb_bsize_shift;
+ /* We only support the FALLOC_FL_KEEP_SIZE mode */
+ if (mode && (mode != FALLOC_FL_KEEP_SIZE))
+ return -EOPNOTSUPP;
+
offset = (offset >> sdp->sd_sb.sb_bsize_shift) <<
sdp->sd_sb.sb_bsize_shift;
struct inode *inode = NULL;
int res;
- d_set_d_op(dentry, &hfs_dentry_operations);
-
hfs_find_init(HFS_SB(dir->i_sb)->cat_tree, &fd);
hfs_cat_build_key(dir->i_sb, fd.search_key, dir->i_ino, &dentry->d_name);
res = hfs_brec_read(&fd, &rec, sizeof(rec));
if (!root_inode)
goto bail_no_root;
+ sb->s_d_op = &hfs_dentry_operations;
res = -ENOMEM;
sb->s_root = d_alloc_root(root_inode);
if (!sb->s_root)
goto bail_iput;
- d_set_d_op(sb->s_root, &hfs_dentry_operations);
-
/* everything's okay */
return 0;
sb = dir->i_sb;
- d_set_d_op(dentry, &hfsplus_dentry_operations);
dentry->d_fsdata = NULL;
hfs_find_init(HFSPLUS_SB(sb)->cat_tree, &fd);
hfsplus_cat_build_key(sb, fd.search_key, dir->i_ino, &dentry->d_name);
err = PTR_ERR(root);
goto cleanup;
}
+ sb->s_d_op = &hfsplus_dentry_operations;
sb->s_root = d_alloc_root(root);
if (!sb->s_root) {
iput(root);
err = -ENOMEM;
goto cleanup;
}
- d_set_d_op(sb->s_root, &hfsplus_dentry_operations);
str.len = sizeof(HFSP_HIDDENDIR_NAME) - 1;
str.name = HFSP_HIDDENDIR_NAME;
goto out_put;
d_add(dentry, inode);
- d_set_d_op(dentry, &hostfs_dentry_ops);
return NULL;
out_put:
sb->s_blocksize_bits = 10;
sb->s_magic = HOSTFS_SUPER_MAGIC;
sb->s_op = &hostfs_sbops;
+ sb->s_d_op = &hostfs_dentry_ops;
sb->s_maxbytes = MAX_LFS_FILESIZE;
/* NULL is printed as <NULL> by sprintf: avoid that. */
return 0;
}
-static const struct dentry_operations hpfs_dentry_operations = {
+const struct dentry_operations hpfs_dentry_operations = {
.d_hash = hpfs_hash_dentry,
.d_compare = hpfs_compare_dentry,
};
-
-void hpfs_set_dentry_operations(struct dentry *dentry)
-{
- d_set_d_op(dentry, &hpfs_dentry_operations);
-}
end:
end_add:
- hpfs_set_dentry_operations(dentry);
unlock_kernel();
d_add(dentry, result);
return NULL;
/* dentry.c */
-void hpfs_set_dentry_operations(struct dentry *);
+extern const struct dentry_operations hpfs_dentry_operations;
/* dir.c */
/* Fill superblock stuff */
s->s_magic = HPFS_SUPER_MAGIC;
s->s_op = &hpfs_sops;
+ s->s_d_op = &hpfs_dentry_operations;
sbi->sb_root = superblock->root;
sbi->sb_fs_size = superblock->n_sectors;
iput(root);
goto bail0;
}
- hpfs_set_dentry_operations(s->s_root);
/*
* find the root directory's . pointer & finish filling in the inode
goto out_iput;
}
- /* get the root dentry */
- s->s_root = d_alloc_root(inode);
- if (!(s->s_root))
- goto out_no_root;
-
table = 0;
if (joliet_level)
table += 2;
if (opt.check == 'r')
table++;
- d_set_d_op(s->s_root, &isofs_dentry_ops[table]);
+
+ s->s_d_op = &isofs_dentry_ops[table];
+
+ /* get the root dentry */
+ s->s_root = d_alloc_root(inode);
+ if (!(s->s_root))
+ goto out_no_root;
kfree(opt.iocharset);
struct inode *inode;
struct page *page;
- d_set_d_op(dentry, dir->i_sb->s_root->d_op);
-
page = alloc_page(GFP_USER);
if (!page)
return ERR_PTR(-ENOMEM);
jfs_info("jfs_lookup: name = %s", name);
- if (JFS_SBI(dip->i_sb)->mntflag & JFS_OS2)
- d_set_d_op(dentry, &jfs_ci_dentry_operations);
-
if ((name[0] == '.') && (len == 1))
inum = dip->i_ino;
else if (strcmp(name, "..") == 0)
return ERR_CAST(ip);
}
- dentry = d_splice_alias(ip, dentry);
-
- if (dentry && (JFS_SBI(dip->i_sb)->mntflag & JFS_OS2))
- d_set_d_op(dentry, &jfs_ci_dentry_operations);
-
- return dentry;
+ return d_splice_alias(ip, dentry);
}
static struct inode *jfs_nfs_get_inode(struct super_block *sb,
sb->s_magic = JFS_SUPER_MAGIC;
+ if (sbi->mntflag & JFS_OS2)
+ sb->s_d_op = &jfs_ci_dentry_operations;
+
inode = jfs_iget(sb, ROOT_I);
if (IS_ERR(inode)) {
ret = PTR_ERR(inode);
if (!sb->s_root)
goto out_no_root;
- if (sbi->mntflag & JFS_OS2)
- d_set_d_op(sb->s_root, &jfs_ci_dentry_operations);
-
/* logical blocks are represented by 40 bits in pxd_t, etc. */
sb->s_maxbytes = ((u64) sb->s_blocksize) << 40;
#if BITS_PER_LONG == 32
* will never be mountable)
*/
struct dentry *mount_pseudo(struct file_system_type *fs_type, char *name,
- const struct super_operations *ops, unsigned long magic)
+ const struct super_operations *ops,
+ const struct dentry_operations *dops, unsigned long magic)
{
struct super_block *s = sget(fs_type, NULL, set_anon_super, NULL);
struct dentry *dentry;
dentry->d_parent = dentry;
d_instantiate(dentry, root);
s->s_root = dentry;
+ s->s_d_op = dops;
s->s_flags |= MS_ACTIVE;
return dget(s->s_root);
struct inode * inode = NULL;
ino_t ino;
- d_set_d_op(dentry, dir->i_sb->s_root->d_op);
-
if (dentry->d_name.len > minix_sb(dir->i_sb)->s_namelen)
return ERR_PTR(-ENAMETOOLONG);
return break_lease(inode, flag);
}
-static int handle_truncate(struct path *path)
+static int handle_truncate(struct file *filp)
{
+ struct path *path = &filp->f_path;
struct inode *inode = path->dentry->d_inode;
int error = get_write_access(inode);
if (error)
if (!error) {
error = do_truncate(path->dentry, 0,
ATTR_MTIME|ATTR_CTIME|ATTR_OPEN,
- NULL);
+ filp);
}
put_write_access(inode);
return error;
}
if (!IS_ERR(filp)) {
if (will_truncate) {
- error = handle_truncate(&nd->path);
+ error = handle_truncate(filp);
if (error) {
fput(filp);
filp = ERR_PTR(error);
#include <asm/uaccess.h>
#include <asm/byteorder.h>
-#include <linux/ncp_fs.h>
-
-#include "ncplib_kernel.h"
+#include "ncp_fs.h"
static void ncp_read_volume_list(struct file *, void *, filldir_t,
struct ncp_cache_control *);
unsigned int, const char *, const struct qstr *);
static int ncp_delete_dentry(const struct dentry *);
-static const struct dentry_operations ncp_dentry_operations =
+const struct dentry_operations ncp_dentry_operations =
{
.d_revalidate = ncp_lookup_validate,
.d_hash = ncp_hash_dentry,
.d_delete = ncp_delete_dentry,
};
-const struct dentry_operations ncp_root_dentry_operations =
-{
- .d_hash = ncp_hash_dentry,
- .d_compare = ncp_compare_dentry,
- .d_delete = ncp_delete_dentry,
-};
-
-
#define ncp_namespace(i) (NCP_SERVER(i)->name_space[NCP_FINFO(i)->volNumber])
static inline int ncp_preserve_entry_case(struct inode *i, __u32 nscreator)
int res, val = 0, len;
__u8 __name[NCP_MAXPATHLEN + 1];
+ if (dentry == dentry->d_sb->s_root)
+ return 1;
+
if (nd->flags & LOOKUP_RCU)
return -ECHILD;
entry->ino = iunique(dir->i_sb, 2);
inode = ncp_iget(dir->i_sb, entry);
if (inode) {
- d_set_d_op(newdent, &ncp_dentry_operations);
d_instantiate(newdent, inode);
if (!hashed)
d_rehash(newdent);
if (inode) {
ncp_new_dentry(dentry);
add_entry:
- d_set_d_op(dentry, &ncp_dentry_operations);
d_add(dentry, inode);
error = 0;
}
#include <linux/vmalloc.h>
#include <linux/sched.h>
-#include <linux/ncp_fs.h>
-#include "ncplib_kernel.h"
+#include "ncp_fs.h"
static int ncp_fsync(struct file *file, int datasync)
{
#include <linux/seq_file.h>
#include <linux/namei.h>
-#include <linux/ncp_fs.h>
-
#include <net/sock.h>
-#include "ncplib_kernel.h"
+#include "ncp_fs.h"
#include "getopt.h"
#define NCP_DEFAULT_FILE_MODE 0600
sb->s_blocksize_bits = 10;
sb->s_magic = NCP_SUPER_MAGIC;
sb->s_op = &ncp_sops;
+ sb->s_d_op = &ncp_dentry_operations;
sb->s_bdi = &server->bdi;
server = NCP_SBP(sb);
sb->s_root = d_alloc_root(root_inode);
if (!sb->s_root)
goto out_no_root;
- d_set_d_op(sb->s_root, &ncp_root_dentry_operations);
return 0;
out_no_root:
#include <linux/vmalloc.h>
#include <linux/sched.h>
-#include <linux/ncp_fs.h>
-
#include <asm/uaccess.h>
-#include "ncplib_kernel.h"
+#include "ncp_fs.h"
/* maximum limit for ncp_objectname_ioctl */
#define NCP_OBJECT_NAME_MAX_LEN 4096
#include <linux/mman.h>
#include <linux/string.h>
#include <linux/fcntl.h>
-#include <linux/ncp_fs.h>
-#include "ncplib_kernel.h"
#include <asm/uaccess.h>
#include <asm/system.h>
+#include "ncp_fs.h"
+
/*
* Fill in the supplied page for mmap
* XXX: how are we excluding truncate/invalidate here? Maybe need to lock
--- /dev/null
+#include <linux/ncp_fs.h>
+#include "ncp_fs_i.h"
+#include "ncp_fs_sb.h"
+
+/* define because it is easy to change PRINTK to {*}PRINTK */
+#define PRINTK(format, args...) printk(KERN_DEBUG format , ## args)
+
+#undef NCPFS_PARANOIA
+#ifdef NCPFS_PARANOIA
+#define PPRINTK(format, args...) PRINTK(format , ## args)
+#else
+#define PPRINTK(format, args...)
+#endif
+
+#ifndef DEBUG_NCP
+#define DEBUG_NCP 0
+#endif
+#if DEBUG_NCP > 0
+#define DPRINTK(format, args...) PRINTK(format , ## args)
+#else
+#define DPRINTK(format, args...)
+#endif
+#if DEBUG_NCP > 1
+#define DDPRINTK(format, args...) PRINTK(format , ## args)
+#else
+#define DDPRINTK(format, args...)
+#endif
+
+#define NCP_MAX_RPC_TIMEOUT (6*HZ)
+
+
+struct ncp_entry_info {
+ struct nw_info_struct i;
+ ino_t ino;
+ int opened;
+ int access;
+ unsigned int volume;
+ __u8 file_handle[6];
+};
+
+static inline struct ncp_server *NCP_SBP(const struct super_block *sb)
+{
+ return sb->s_fs_info;
+}
+
+#define NCP_SERVER(inode) NCP_SBP((inode)->i_sb)
+static inline struct ncp_inode_info *NCP_FINFO(const struct inode *inode)
+{
+ return container_of(inode, struct ncp_inode_info, vfs_inode);
+}
+
+/* linux/fs/ncpfs/inode.c */
+int ncp_notify_change(struct dentry *, struct iattr *);
+struct inode *ncp_iget(struct super_block *, struct ncp_entry_info *);
+void ncp_update_inode(struct inode *, struct ncp_entry_info *);
+void ncp_update_inode2(struct inode *, struct ncp_entry_info *);
+
+/* linux/fs/ncpfs/dir.c */
+extern const struct inode_operations ncp_dir_inode_operations;
+extern const struct file_operations ncp_dir_operations;
+extern const struct dentry_operations ncp_dentry_operations;
+int ncp_conn_logged_in(struct super_block *);
+int ncp_date_dos2unix(__le16 time, __le16 date);
+void ncp_date_unix2dos(int unix_date, __le16 * time, __le16 * date);
+
+/* linux/fs/ncpfs/ioctl.c */
+long ncp_ioctl(struct file *, unsigned int, unsigned long);
+long ncp_compat_ioctl(struct file *, unsigned int, unsigned long);
+
+/* linux/fs/ncpfs/sock.c */
+int ncp_request2(struct ncp_server *server, int function,
+ void* reply, int max_reply_size);
+static inline int ncp_request(struct ncp_server *server, int function) {
+ return ncp_request2(server, function, server->packet, server->packet_size);
+}
+int ncp_connect(struct ncp_server *server);
+int ncp_disconnect(struct ncp_server *server);
+void ncp_lock_server(struct ncp_server *server);
+void ncp_unlock_server(struct ncp_server *server);
+
+/* linux/fs/ncpfs/symlink.c */
+#if defined(CONFIG_NCPFS_EXTRAS) || defined(CONFIG_NCPFS_NFS_NS)
+extern const struct address_space_operations ncp_symlink_aops;
+int ncp_symlink(struct inode*, struct dentry*, const char*);
+#endif
+
+/* linux/fs/ncpfs/file.c */
+extern const struct inode_operations ncp_file_inode_operations;
+extern const struct file_operations ncp_file_operations;
+int ncp_make_open(struct inode *, int);
+
+/* linux/fs/ncpfs/mmap.c */
+int ncp_mmap(struct file *, struct vm_area_struct *);
+
+/* linux/fs/ncpfs/ncplib_kernel.c */
+int ncp_make_closed(struct inode *);
+
+#include "ncplib_kernel.h"
#include <linux/net.h>
#include <linux/mutex.h>
#include <linux/backing-dev.h>
-
-#ifdef __KERNEL__
-
#include <linux/workqueue.h>
#define NCP_DEFAULT_OPTIONS 0 /* 2 for packet signatures */
struct sock;
+struct ncp_mount_data_kernel {
+ unsigned long flags; /* NCP_MOUNT_* flags */
+ unsigned int int_flags; /* internal flags */
+#define NCP_IMOUNT_LOGGEDIN_POSSIBLE 0x0001
+ __kernel_uid32_t mounted_uid; /* Who may umount() this filesystem? */
+ struct pid *wdog_pid; /* Who cares for our watchdog packets? */
+ unsigned int ncp_fd; /* The socket to the ncp port */
+ unsigned int time_out; /* How long should I wait after
+ sending a NCP request? */
+ unsigned int retry_count; /* And how often should I retry? */
+ unsigned char mounted_vol[NCP_VOLNAME_LEN + 1];
+ __kernel_uid32_t uid;
+ __kernel_gid32_t gid;
+ __kernel_mode_t file_mode;
+ __kernel_mode_t dir_mode;
+ int info_fd;
+};
+
struct ncp_server {
struct ncp_mount_data_kernel m; /* Nearly all of the mount data is of
server->conn_status |= 0x01;
}
-#endif /* __KERNEL__ */
-
#endif
-
-#include "ncplib_kernel.h"
+#include "ncp_fs.h"
static inline void assert_server_locked(struct ncp_server *server)
{
#include <linux/ctype.h>
#endif /* CONFIG_NCPFS_NLS */
-#include <linux/ncp_fs.h>
-
#define NCP_MIN_SYMLINK_SIZE 8
#define NCP_MAX_SYMLINK_SIZE 512
#include <linux/string.h>
#include <linux/ncp.h>
#include <linux/bitops.h>
+#include "ncp_fs.h"
#include "ncpsign_kernel.h"
/* i386: 32-bit, little endian, handles mis-alignment */
#ifndef _NCPSIGN_KERNEL_H
#define _NCPSIGN_KERNEL_H
-#include <linux/ncp_fs.h>
-
#ifdef CONFIG_NCPFS_PACKET_SIGNING
void __sign_packet(struct ncp_server *server, const char *data, size_t size, __u32 totalsize, void *sign_buff);
int sign_verify_reply(struct ncp_server *server, const char *data, size_t size, __u32 totalsize, const void *sign_buff);
#include <linux/poll.h>
#include <linux/file.h>
-#include <linux/ncp_fs.h>
+#include "ncp_fs.h"
#include "ncpsign_kernel.h"
#include <linux/errno.h>
#include <linux/fs.h>
-#include <linux/ncp_fs.h>
#include <linux/time.h>
#include <linux/slab.h>
#include <linux/mm.h>
#include <linux/stat.h>
-#include "ncplib_kernel.h"
-
+#include "ncp_fs.h"
/* these magic numbers must appear in the symlink file -- this makes it a bit
more resilient against the magic attributes being set on random files. */
if (dentry == NULL)
return;
- d_set_d_op(dentry, NFS_PROTO(dir)->dentry_ops);
inode = nfs_fhget(dentry->d_sb, entry->fh, entry->fattr);
if (IS_ERR(inode))
goto out;
if (dentry->d_name.len > NFS_SERVER(dir)->namelen)
goto out;
- d_set_d_op(dentry, NFS_PROTO(dir)->dentry_ops);
-
/*
* If we're doing an exclusive create, optimize away the lookup
* but don't hash the dentry.
res = ERR_PTR(-ENAMETOOLONG);
goto out;
}
- d_set_d_op(dentry, NFS_PROTO(dir)->dentry_ops);
/* Let vfs_create() deal with O_EXCL. Instantiate, but don't hash
* the dentry. */
}
security_d_instantiate(ret, inode);
-
- if (ret->d_op == NULL)
- d_set_d_op(ret, server->nfs_client->rpc_ops->dentry_ops);
out:
nfs_free_fattr(fsinfo.fattr);
return ret;
security_d_instantiate(ret, inode);
- if (ret->d_op == NULL)
- d_set_d_op(ret, server->nfs_client->rpc_ops->dentry_ops);
-
out:
nfs_free_fattr(fattr);
dprintk("<-- nfs4_get_root()\n");
s->s_flags = sb_mntdata->mntflags;
s->s_fs_info = server;
+ s->s_d_op = server->nfs_client->rpc_ops->dentry_ops;
ret = set_anon_super(s, server);
if (ret == 0)
server->s_dev = s->s_dev;
}
result = d_obtain_alias(inode);
- if (!IS_ERR(result))
- d_set_d_op(result, &ocfs2_dentry_ops);
- else
+ if (IS_ERR(result))
mlog_errno(PTR_ERR(result));
bail:
}
parent = d_obtain_alias(ocfs2_iget(OCFS2_SB(dir->i_sb), blkno, 0, 0));
- if (!IS_ERR(parent))
- d_set_d_op(parent, &ocfs2_dentry_ops);
bail_unlock:
ocfs2_inode_unlock(dir, 0);
struct ocfs2_super *osb = OCFS2_SB(inode->i_sb);
struct ocfs2_space_resv sr;
int change_size = 1;
+ int cmd = OCFS2_IOC_RESVSP64;
if (!ocfs2_writes_unwritten_extents(osb))
return -EOPNOTSUPP;
if (mode & FALLOC_FL_KEEP_SIZE)
change_size = 0;
+ if (mode & FALLOC_FL_PUNCH_HOLE)
+ cmd = OCFS2_IOC_UNRESVSP64;
+
sr.l_whence = 0;
sr.l_start = (s64)offset;
sr.l_len = (s64)len;
- return __ocfs2_change_file_space(NULL, inode, offset,
- OCFS2_IOC_RESVSP64, &sr, change_size);
+ return __ocfs2_change_file_space(NULL, inode, offset, cmd, &sr,
+ change_size);
}
int ocfs2_check_range_for_refcount(struct inode *inode, loff_t pos,
spin_unlock(&oi->ip_lock);
bail_add:
- d_set_d_op(dentry, &ocfs2_dentry_ops);
ret = d_splice_alias(inode, dentry);
if (inode) {
mlog_errno(status);
goto leave;
}
- d_set_d_op(dentry, &ocfs2_dentry_ops);
status = ocfs2_add_entry(handle, dentry, inode,
OCFS2_I(inode)->ip_blkno, parent_fe_bh,
}
ihold(inode);
- d_set_d_op(dentry, &ocfs2_dentry_ops);
d_instantiate(dentry, inode);
out_commit:
mlog_errno(status);
goto bail;
}
- d_set_d_op(dentry, &ocfs2_dentry_ops);
status = ocfs2_add_entry(handle, dentry, inode,
le64_to_cpu(fe->i_blkno), parent_fe_bh,
goto out_commit;
}
- d_set_d_op(dentry, &ocfs2_dentry_ops);
d_instantiate(dentry, inode);
status = 0;
out_commit:
sb->s_fs_info = osb;
sb->s_op = &ocfs2_sops;
+ sb->s_d_op = &ocfs2_dentry_ops;
sb->s_export_op = &ocfs2_export_ops;
sb->s_qcop = &ocfs2_quotactl_ops;
sb->dq_op = &ocfs2_quota_operations;
return -EINVAL;
/* Return error if mode is not supported */
- if (mode && !(mode & FALLOC_FL_KEEP_SIZE))
+ if (mode & ~(FALLOC_FL_KEEP_SIZE | FALLOC_FL_PUNCH_HOLE))
+ return -EOPNOTSUPP;
+
+ /* Punch hole must have keep size set */
+ if ((mode & FALLOC_FL_PUNCH_HOLE) &&
+ !(mode & FALLOC_FL_KEEP_SIZE))
return -EOPNOTSUPP;
if (!(file->f_mode & FMODE_WRITE))
goto err_inode;
path.mnt = mntget(pipe_mnt);
- d_set_d_op(path.dentry, &pipefs_dentry_operations);
d_instantiate(path.dentry, inode);
err = -ENFILE;
static struct dentry *pipefs_mount(struct file_system_type *fs_type,
int flags, const char *dev_name, void *data)
{
- return mount_pseudo(fs_type, "pipe:", &pipefs_ops, PIPEFS_MAGIC);
+ return mount_pseudo(fs_type, "pipe:", &pipefs_ops,
+ &pipefs_dentry_operations, PIPEFS_MAGIC);
}
static struct file_system_type pipe_fs_type = {
EXPORT_SYMBOL(generic_ro_fops);
-static int
-__negative_fpos_check(struct file *file, loff_t pos, size_t count)
+static inline int unsigned_offsets(struct file *file)
{
- /*
- * pos or pos+count is negative here, check overflow.
- * too big "count" will be caught in rw_verify_area().
- */
- if ((pos < 0) && (pos + count < pos))
- return -EOVERFLOW;
- if (file->f_mode & FMODE_UNSIGNED_OFFSET)
- return 0;
- return -EINVAL;
+ return file->f_mode & FMODE_UNSIGNED_OFFSET;
}
/**
break;
}
- if (offset < 0 && __negative_fpos_check(file, offset, 0))
+ if (offset < 0 && !unsigned_offsets(file))
return -EINVAL;
if (offset > inode->i_sb->s_maxbytes)
return -EINVAL;
offset += file->f_pos;
}
retval = -EINVAL;
- if (offset >= 0 || !__negative_fpos_check(file, offset, 0)) {
+ if (offset >= 0 || unsigned_offsets(file)) {
if (offset != file->f_pos) {
file->f_pos = offset;
file->f_version = 0;
if (unlikely((ssize_t) count < 0))
return retval;
pos = *ppos;
- if (unlikely((pos < 0) || (loff_t) (pos + count) < 0)) {
- retval = __negative_fpos_check(file, pos, count);
- if (retval)
+ if (unlikely(pos < 0)) {
+ if (!unsigned_offsets(file))
+ return retval;
+ if (count >= -pos) /* both values are in 0..LLONG_MAX */
+ return -EOVERFLOW;
+ } else if (unlikely((loff_t) (pos + count) < 0)) {
+ if (!unsigned_offsets(file))
return retval;
}
struct inode * inode = NULL;
ino_t ino;
- d_set_d_op(dentry, dir->i_sb->s_root->d_op);
if (dentry->d_name.len > SYSV_NAMELEN)
return ERR_PTR(-ENAMETOOLONG);
ino = sysv_inode_by_name(dentry);
sb->s_magic = SYSV_MAGIC_BASE + sbi->s_type;
/* set up enough so that it can read an inode */
sb->s_op = &sysv_sops;
+ if (sbi->s_forced_ro)
+ sb->s_flags |= MS_RDONLY;
+ if (sbi->s_truncate)
+ sb->s_d_op = &sysv_dentry_operations;
root_inode = sysv_iget(sb, SYSV_ROOT_INO);
if (IS_ERR(root_inode)) {
printk("SysV FS: get root inode failed\n");
printk("SysV FS: get root dentry failed\n");
return 0;
}
- if (sbi->s_forced_ro)
- sb->s_flags |= MS_RDONLY;
- if (sbi->s_truncate)
- d_set_d_op(sb->s_root, &sysv_dentry_operations);
return 1;
}
loff_t new_size = 0;
xfs_flock64_t bf;
xfs_inode_t *ip = XFS_I(inode);
+ int cmd = XFS_IOC_RESVSP;
/* preallocation on directories not yet supported */
error = -ENODEV;
xfs_ilock(ip, XFS_IOLOCK_EXCL);
+ if (mode & FALLOC_FL_PUNCH_HOLE)
+ cmd = XFS_IOC_UNRESVSP;
+
/* check the new inode size is valid before allocating */
if (!(mode & FALLOC_FL_KEEP_SIZE) &&
offset + len > i_size_read(inode)) {
goto out_unlock;
}
- error = -xfs_change_file_space(ip, XFS_IOC_RESVSP, &bf,
- 0, XFS_ATTR_NOLOCK);
+ error = -xfs_change_file_space(ip, cmd, &bf, 0, XFS_ATTR_NOLOCK);
if (error)
goto out_unlock;
#define _FALLOC_H_
#define FALLOC_FL_KEEP_SIZE 0x01 /* default is extend size */
+#define FALLOC_FL_PUNCH_HOLE 0x02 /* de-allocates range */
#ifdef __KERNEL__
* generic_show_options()
*/
char __rcu *s_options;
+ const struct dentry_operations *s_d_op; /* default d_op for dentries */
};
extern struct timespec current_fs_time(struct super_block *sb);
int (*set)(struct super_block *,void *),
void *data);
extern struct dentry *mount_pseudo(struct file_system_type *, char *,
- const struct super_operations *ops, unsigned long);
+ const struct super_operations *ops,
+ const struct dentry_operations *dops,
+ unsigned long);
extern void simple_set_mnt(struct vfsmount *mnt, struct super_block *sb);
static inline void sb_mark_dirty(struct super_block *sb)
#define NCP_MAXPATHLEN 255
#define NCP_MAXNAMELEN 14
-#ifdef __KERNEL__
-
-#include <linux/ncp_fs_i.h>
-#include <linux/ncp_fs_sb.h>
-
-/* define because it is easy to change PRINTK to {*}PRINTK */
-#define PRINTK(format, args...) printk(KERN_DEBUG format , ## args)
-
-#undef NCPFS_PARANOIA
-#ifdef NCPFS_PARANOIA
-#define PPRINTK(format, args...) PRINTK(format , ## args)
-#else
-#define PPRINTK(format, args...)
-#endif
-
-#ifndef DEBUG_NCP
-#define DEBUG_NCP 0
-#endif
-#if DEBUG_NCP > 0
-#define DPRINTK(format, args...) PRINTK(format , ## args)
-#else
-#define DPRINTK(format, args...)
-#endif
-#if DEBUG_NCP > 1
-#define DDPRINTK(format, args...) PRINTK(format , ## args)
-#else
-#define DDPRINTK(format, args...)
-#endif
-
-#define NCP_MAX_RPC_TIMEOUT (6*HZ)
-
-
-struct ncp_entry_info {
- struct nw_info_struct i;
- ino_t ino;
- int opened;
- int access;
- unsigned int volume;
- __u8 file_handle[6];
-};
-
-static inline struct ncp_server *NCP_SBP(const struct super_block *sb)
-{
- return sb->s_fs_info;
-}
-
-#define NCP_SERVER(inode) NCP_SBP((inode)->i_sb)
-static inline struct ncp_inode_info *NCP_FINFO(const struct inode *inode)
-{
- return container_of(inode, struct ncp_inode_info, vfs_inode);
-}
-
-/* linux/fs/ncpfs/inode.c */
-int ncp_notify_change(struct dentry *, struct iattr *);
-struct inode *ncp_iget(struct super_block *, struct ncp_entry_info *);
-void ncp_update_inode(struct inode *, struct ncp_entry_info *);
-void ncp_update_inode2(struct inode *, struct ncp_entry_info *);
-
-/* linux/fs/ncpfs/dir.c */
-extern const struct inode_operations ncp_dir_inode_operations;
-extern const struct file_operations ncp_dir_operations;
-extern const struct dentry_operations ncp_root_dentry_operations;
-int ncp_conn_logged_in(struct super_block *);
-int ncp_date_dos2unix(__le16 time, __le16 date);
-void ncp_date_unix2dos(int unix_date, __le16 * time, __le16 * date);
-
-/* linux/fs/ncpfs/ioctl.c */
-long ncp_ioctl(struct file *, unsigned int, unsigned long);
-long ncp_compat_ioctl(struct file *, unsigned int, unsigned long);
-
-/* linux/fs/ncpfs/sock.c */
-int ncp_request2(struct ncp_server *server, int function,
- void* reply, int max_reply_size);
-static inline int ncp_request(struct ncp_server *server, int function) {
- return ncp_request2(server, function, server->packet, server->packet_size);
-}
-int ncp_connect(struct ncp_server *server);
-int ncp_disconnect(struct ncp_server *server);
-void ncp_lock_server(struct ncp_server *server);
-void ncp_unlock_server(struct ncp_server *server);
-
-/* linux/fs/ncpfs/symlink.c */
-#if defined(CONFIG_NCPFS_EXTRAS) || defined(CONFIG_NCPFS_NFS_NS)
-extern const struct address_space_operations ncp_symlink_aops;
-int ncp_symlink(struct inode*, struct dentry*, const char*);
-#endif
-
-/* linux/fs/ncpfs/file.c */
-extern const struct inode_operations ncp_file_inode_operations;
-extern const struct file_operations ncp_file_operations;
-int ncp_make_open(struct inode *, int);
-
-/* linux/fs/ncpfs/mmap.c */
-int ncp_mmap(struct file *, struct vm_area_struct *);
-
-/* linux/fs/ncpfs/ncplib_kernel.c */
-int ncp_make_closed(struct inode *);
-
-#endif /* __KERNEL__ */
-
#endif /* _LINUX_NCP_FS_H */
#define NCP_MOUNT_VERSION_V5 (5) /* Text only */
-#ifdef __KERNEL__
-
-struct ncp_mount_data_kernel {
- unsigned long flags; /* NCP_MOUNT_* flags */
- unsigned int int_flags; /* internal flags */
-#define NCP_IMOUNT_LOGGEDIN_POSSIBLE 0x0001
- __kernel_uid32_t mounted_uid; /* Who may umount() this filesystem? */
- struct pid *wdog_pid; /* Who cares for our watchdog packets? */
- unsigned int ncp_fd; /* The socket to the ncp port */
- unsigned int time_out; /* How long should I wait after
- sending a NCP request? */
- unsigned int retry_count; /* And how often should I retry? */
- unsigned char mounted_vol[NCP_VOLNAME_LEN + 1];
- __kernel_uid32_t uid;
- __kernel_gid32_t gid;
- __kernel_mode_t file_mode;
- __kernel_mode_t dir_mode;
- int info_fd;
-};
-
-#endif /* __KERNEL__ */
-
#endif
* -> cgroup_mkdir.
*/
-static struct dentry *cgroup_lookup(struct inode *dir,
- struct dentry *dentry, struct nameidata *nd);
static int cgroup_mkdir(struct inode *dir, struct dentry *dentry, int mode);
static int cgroup_rmdir(struct inode *unused_dir, struct dentry *dentry);
static int cgroup_populate_dir(struct cgroup *cgrp);
static int cgroup_get_rootdir(struct super_block *sb)
{
+ static const struct dentry_operations cgroup_dops = {
+ .d_iput = cgroup_diput,
+ };
+
struct inode *inode =
cgroup_new_inode(S_IFDIR | S_IRUGO | S_IXUGO | S_IWUSR, sb);
struct dentry *dentry;
return -ENOMEM;
}
sb->s_root = dentry;
+ /* for everything else we want ->d_op set */
+ sb->s_d_op = &cgroup_dops;
return 0;
}
};
static const struct inode_operations cgroup_dir_inode_operations = {
- .lookup = cgroup_lookup,
+ .lookup = simple_lookup,
.mkdir = cgroup_mkdir,
.rmdir = cgroup_rmdir,
.rename = cgroup_rename,
return __d_cft(file->f_dentry);
}
-static int cgroup_delete_dentry(const struct dentry *dentry)
-{
- return 1;
-}
-
-static struct dentry *cgroup_lookup(struct inode *dir,
- struct dentry *dentry, struct nameidata *nd)
-{
- static const struct dentry_operations cgroup_dentry_operations = {
- .d_delete = cgroup_delete_dentry,
- .d_iput = cgroup_diput,
- };
-
- if (dentry->d_name.len > NAME_MAX)
- return ERR_PTR(-ENAMETOOLONG);
- d_set_d_op(dentry, &cgroup_dentry_operations);
- d_add(dentry, NULL);
- return NULL;
-}
-
static int cgroup_create_file(struct dentry *dentry, mode_t mode,
struct super_block *sb)
{
.statfs = simple_statfs,
};
-static struct dentry *sockfs_mount(struct file_system_type *fs_type,
- int flags, const char *dev_name, void *data)
-{
- return mount_pseudo(fs_type, "socket:", &sockfs_ops, SOCKFS_MAGIC);
-}
-
-static struct vfsmount *sock_mnt __read_mostly;
-
-static struct file_system_type sock_fs_type = {
- .name = "sockfs",
- .mount = sockfs_mount,
- .kill_sb = kill_anon_super,
-};
-
/*
* sockfs_dname() is called from d_path().
*/
.d_dname = sockfs_dname,
};
+static struct dentry *sockfs_mount(struct file_system_type *fs_type,
+ int flags, const char *dev_name, void *data)
+{
+ return mount_pseudo(fs_type, "socket:", &sockfs_ops,
+ &sockfs_dentry_operations, SOCKFS_MAGIC);
+}
+
+static struct vfsmount *sock_mnt __read_mostly;
+
+static struct file_system_type sock_fs_type = {
+ .name = "sockfs",
+ .mount = sockfs_mount,
+ .kill_sb = kill_anon_super,
+};
+
/*
* Obtains the first available file descriptor and sets it up for use.
*
}
path.mnt = mntget(sock_mnt);
- d_set_d_op(path.dentry, &sockfs_dentry_operations);
d_instantiate(path.dentry, SOCK_INODE(sock));
SOCK_INODE(sock)->i_fop = &socket_file_ops;
git.openpandora.org / pandora-kernel.git / commitdiff