* Copyright (C) 2001-2003 Andreas Gruenbacher, <agruen@suse.de>
*/
-#include <linux/init.h>
-#include <linux/sched.h>
-#include <linux/slab.h>
-#include <linux/capability.h>
-#include <linux/fs.h>
-#include <linux/ext3_jbd.h>
-#include <linux/ext3_fs.h>
+#include "ext3.h"
#include "xattr.h"
#include "acl.h"
* David S. Miller (davem@caip.rutgers.edu), 1995
*/
-#include <linux/time.h>
-#include <linux/capability.h>
-#include <linux/fs.h>
-#include <linux/slab.h>
-#include <linux/jbd.h>
-#include <linux/ext3_fs.h>
-#include <linux/ext3_jbd.h>
#include <linux/quotaops.h>
-#include <linux/buffer_head.h>
#include <linux/blkdev.h>
-#include <trace/events/ext3.h>
+#include "ext3.h"
/*
* balloc.c contains the blocks allocation and deallocation routines
* Universite Pierre et Marie Curie (Paris VI)
*/
-#include <linux/buffer_head.h>
-#include <linux/jbd.h>
-#include <linux/ext3_fs.h>
+#include "ext3.h"
#ifdef EXT3FS_DEBUG
*
*/
-#include <linux/fs.h>
-#include <linux/jbd.h>
-#include <linux/ext3_fs.h>
-#include <linux/buffer_head.h>
-#include <linux/slab.h>
-#include <linux/rbtree.h>
+#include "ext3.h"
static unsigned char ext3_filetype_table[] = {
DT_UNKNOWN, DT_REG, DT_DIR, DT_CHR, DT_BLK, DT_FIFO, DT_SOCK, DT_LNK
/*
- * linux/include/linux/ext3_fs.h
+ * Written by Stephen C. Tweedie <sct@redhat.com>, 1999
+ *
+ * Copyright 1998--1999 Red Hat corp --- All Rights Reserved
+ *
+ * This file is part of the Linux kernel and is made available under
+ * the terms of the GNU General Public License, version 2, or at your
+ * option, any later version, incorporated herein by reference.
*
* 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
-
-#include <linux/types.h>
+#include <linux/fs.h>
+#include <linux/jbd.h>
#include <linux/magic.h>
#include <linux/bug.h>
+#include <linux/blockgroup_lock.h>
/*
* The second extended filesystem constants/structures
#define EXT3_MIN_BLOCK_SIZE 1024
#define EXT3_MAX_BLOCK_SIZE 65536
#define EXT3_MIN_BLOCK_LOG_SIZE 10
-#ifdef __KERNEL__
-# define EXT3_BLOCK_SIZE(s) ((s)->s_blocksize)
-#else
-# define EXT3_BLOCK_SIZE(s) (EXT3_MIN_BLOCK_SIZE << (s)->s_log_block_size)
-#endif
+#define EXT3_BLOCK_SIZE(s) ((s)->s_blocksize)
#define EXT3_ADDR_PER_BLOCK(s) (EXT3_BLOCK_SIZE(s) / sizeof (__u32))
-#ifdef __KERNEL__
-# define EXT3_BLOCK_SIZE_BITS(s) ((s)->s_blocksize_bits)
-#else
-# define EXT3_BLOCK_SIZE_BITS(s) ((s)->s_log_block_size + 10)
-#endif
-#ifdef __KERNEL__
+#define EXT3_BLOCK_SIZE_BITS(s) ((s)->s_blocksize_bits)
#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)
-#else
-#define EXT3_INODE_SIZE(s) (((s)->s_rev_level == EXT3_GOOD_OLD_REV) ? \
- EXT3_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 : \
- (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
-#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)
-#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))
-#endif
+#define EXT3_FRAG_SIZE(s) (EXT3_SB(s)->s_frag_size)
+#define EXT3_FRAGS_PER_BLOCK(s) (EXT3_SB(s)->s_frags_per_block)
/*
* Structure of a blocks group descriptor
/*
* 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)
-#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)
-#endif
+#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)
/*
* Constants relative to the data blocks
#define i_size_high i_dir_acl
-#if defined(__KERNEL__) || defined(__linux__)
#define i_reserved1 osd1.linux1.l_i_reserved1
#define i_frag osd2.linux2.l_i_frag
#define i_fsize osd2.linux2.l_i_fsize
#define i_gid_high osd2.linux2.l_i_gid_high
#define i_reserved2 osd2.linux2.l_i_reserved2
-#elif defined(__GNU__)
-
-#define i_translator osd1.hurd1.h_i_translator
-#define i_frag osd2.hurd2.h_i_frag;
-#define i_fsize osd2.hurd2.h_i_fsize;
-#define i_uid_high osd2.hurd2.h_i_uid_high
-#define i_gid_high osd2.hurd2.h_i_gid_high
-#define i_author osd2.hurd2.h_i_author
-
-#elif defined(__masix__)
-
-#define i_reserved1 osd1.masix1.m_i_reserved1
-#define i_frag osd2.masix2.m_i_frag
-#define i_fsize osd2.masix2.m_i_fsize
-#define i_reserved2 osd2.masix2.m_i_reserved2
-
-#endif /* defined(__KERNEL__) || defined(__linux__) */
-
/*
* File system states
*/
__u32 s_reserved[162]; /* Padding to the end of the block */
};
-#ifdef __KERNEL__
-#include <linux/ext3_fs_i.h>
-#include <linux/ext3_fs_sb.h>
+/* data type for block offset of block group */
+typedef int ext3_grpblk_t;
+
+/* data type for filesystem-wide blocks number */
+typedef unsigned long ext3_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 ext3_reserve_window_node {
+ struct rb_node rsv_node;
+ __u32 rsv_goal_size;
+ __u32 rsv_alloc_hit;
+ struct ext3_reserve_window rsv_window;
+};
+
+struct ext3_block_alloc_info {
+ /* information about reservation window */
+ struct ext3_reserve_window_node rsv_window_node;
+ /*
+ * was i_next_alloc_block in ext3_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
+ * is the *physical* companion to i_next_alloc_block.
+ * it 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;
+};
+
+#define rsv_start rsv_window._rsv_start
+#define rsv_end rsv_window._rsv_end
+
+/*
+ * third extended file system inode data in memory
+ */
+struct ext3_inode_info {
+ __le32 i_data[15]; /* unconverted */
+ __u32 i_flags;
+#ifdef EXT3_FRAGMENTS
+ __u32 i_faddr;
+ __u8 i_frag_no;
+ __u8 i_frag_size;
+#endif
+ ext3_fsblk_t i_file_acl;
+ __u32 i_dir_acl;
+ __u32 i_dtime;
+
+ /*
+ * i_block_group is the number of the block group which contains
+ * this file's inode. Constant across the lifetime of the inode,
+ * it is ued for making block allocation decisions - we try to
+ * place a file's data blocks near its inode block, and new inodes
+ * near to their parent directory's inode.
+ */
+ __u32 i_block_group;
+ unsigned long i_state_flags; /* Dynamic state flags for ext3 */
+
+ /* block reservation info */
+ struct ext3_block_alloc_info *i_block_alloc_info;
+
+ __u32 i_dir_start_lookup;
+#ifdef CONFIG_EXT3_FS_XATTR
+ /*
+ * Extended attributes can be read independently of the main file
+ * data. Taking i_mutex even when reading would cause contention
+ * between readers of EAs and writers of regular file data, so
+ * instead we synchronize on xattr_sem when reading or changing
+ * EAs.
+ */
+ struct rw_semaphore xattr_sem;
+#endif
+
+ struct list_head i_orphan; /* unlinked but open inodes */
+
+ /*
+ * 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
+ * set i_disksize to 0 until the truncate is actually under way.
+ *
+ * The intent is that i_disksize always represents the blocks which
+ * are used by this file. This allows recovery to restart truncate
+ * on orphans if we crash during truncate. We actually write i_disksize
+ * into the on-disk inode when writing inodes out, instead of i_size.
+ *
+ * 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).
+ */
+ loff_t i_disksize;
+
+ /* on-disk additional length */
+ __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
+ * data tree are chopped off during truncate. We can't do that in
+ * ext3 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
+ * by other means, so we have truncate_mutex.
+ */
+ struct mutex truncate_mutex;
+
+ /*
+ * Transactions that contain inode's metadata needed to complete
+ * fsync and fdatasync, respectively.
+ */
+ atomic_t i_sync_tid;
+ atomic_t i_datasync_tid;
+
+ struct inode vfs_inode;
+};
+
+/*
+ * third extended-fs super-block data in memory
+ */
+struct ext3_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_frags_per_group;/* Number of fragments in a group */
+ unsigned long s_blocks_per_group;/* Number of blocks in a group */
+ unsigned long s_inodes_per_group;/* Number of inodes in a group */
+ unsigned long s_itb_per_group; /* Number of inode table blocks per group */
+ unsigned long s_gdb_count; /* Number of group descriptor blocks */
+ unsigned long s_desc_per_block; /* Number of group descriptors per block */
+ unsigned long s_groups_count; /* Number of groups in the fs */
+ unsigned long s_overhead_last; /* Last calculated overhead */
+ unsigned long s_blocks_last; /* Last seen block count */
+ 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 buffer_head ** s_group_desc;
+ unsigned long s_mount_opt;
+ ext3_fsblk_t s_sb_block;
+ uid_t s_resuid;
+ gid_t s_resgid;
+ unsigned short s_mount_state;
+ unsigned short s_pad;
+ int s_addr_per_block_bits;
+ int s_desc_per_block_bits;
+ int s_inode_size;
+ int s_first_ino;
+ spinlock_t s_next_gen_lock;
+ u32 s_next_generation;
+ u32 s_hash_seed[4];
+ int s_def_hash_version;
+ int s_hash_unsigned; /* 3 if hash should be signed, 0 if not */
+ struct percpu_counter s_freeblocks_counter;
+ struct percpu_counter s_freeinodes_counter;
+ struct percpu_counter s_dirs_counter;
+ struct blockgroup_lock *s_blockgroup_lock;
+
+ /* 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;
+
+ /* Journaling */
+ struct inode * s_journal_inode;
+ struct journal_s * s_journal;
+ struct list_head s_orphan;
+ struct mutex s_orphan_lock;
+ struct mutex s_resize_lock;
+ unsigned long s_commit_interval;
+ struct block_device *journal_bdev;
+#ifdef CONFIG_QUOTA
+ char *s_qf_names[MAXQUOTAS]; /* Names of quota files with journalled quota */
+ int s_jquota_fmt; /* Format of quota to use */
+#endif
+};
+
+static inline spinlock_t *
+sb_bgl_lock(struct ext3_sb_info *sbi, unsigned int block_group)
+{
+ return bgl_lock_ptr(sbi->s_blockgroup_lock, block_group);
+}
+
static inline struct ext3_sb_info * EXT3_SB(struct super_block *sb)
{
return sb->s_fs_info;
{
clear_bit(bit, &EXT3_I(inode)->i_state_flags);
}
-#else
-/* Assume that user mode programs are passing in an ext3fs 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)
-#endif
#define NEXT_ORPHAN(inode) EXT3_I(inode)->i_dtime
#define DX_HASH_HALF_MD4_UNSIGNED 4
#define DX_HASH_TEA_UNSIGNED 5
-#ifdef __KERNEL__
-
/* hash info structure used by the directory hash */
struct dx_hash_info
{
extern const struct inode_operations ext3_symlink_inode_operations;
extern const struct inode_operations ext3_fast_symlink_inode_operations;
+#define EXT3_JOURNAL(inode) (EXT3_SB((inode)->i_sb)->s_journal)
+
+/* Define the number of blocks we need to account to a transaction to
+ * modify one block of data.
+ *
+ * We may have to touch one inode, one bitmap buffer, up to three
+ * indirection blocks, the group and superblock summaries, and the data
+ * block to complete the transaction. */
+
+#define EXT3_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 the minimum size for a transaction which modifies data. This
+ * needs to take into account the fact that we may end up modifying two
+ * quota files too (one for the group, one for the user quota). The
+ * 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 + \
+ EXT3_MAXQUOTAS_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) (EXT3_MAXQUOTAS_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
+ * write(2) and truncate(2) we can write more than this, but we always
+ * start off at the maximum transaction size and grow the transaction
+ * optimistically as we go. */
+
+#define EXT3_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
+ * transaction or to start a new one. Reserve enough space here for
+ * inode, bitmap, superblock, group and indirection updates for at least
+ * one block, plus two quota updates. Quota allocations are not
+ * needed. */
+
+#define EXT3_RESERVE_TRANS_BLOCKS 12U
+
+#define EXT3_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)
+/* 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)
+#else
+#define EXT3_QUOTA_TRANS_BLOCKS(sb) 0
+#define EXT3_QUOTA_INIT_BLOCKS(sb) 0
+#define EXT3_QUOTA_DEL_BLOCKS(sb) 0
+#endif
+#define EXT3_MAXQUOTAS_TRANS_BLOCKS(sb) (MAXQUOTAS*EXT3_QUOTA_TRANS_BLOCKS(sb))
+#define EXT3_MAXQUOTAS_INIT_BLOCKS(sb) (MAXQUOTAS*EXT3_QUOTA_INIT_BLOCKS(sb))
+#define EXT3_MAXQUOTAS_DEL_BLOCKS(sb) (MAXQUOTAS*EXT3_QUOTA_DEL_BLOCKS(sb))
+
+int
+ext3_mark_iloc_dirty(handle_t *handle,
+ struct inode *inode,
+ struct ext3_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 ext3_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
+ * been done yet.
+ */
+
+static inline void ext3_journal_release_buffer(handle_t *handle,
+ struct buffer_head *bh)
+{
+ journal_release_buffer(handle, bh);
+}
+
+void ext3_journal_abort_handle(const char *caller, const char *err_fn,
+ struct buffer_head *bh, handle_t *handle, int err);
+
+int __ext3_journal_get_undo_access(const char *where, handle_t *handle,
+ struct buffer_head *bh);
+
+int __ext3_journal_get_write_access(const char *where, handle_t *handle,
+ struct buffer_head *bh);
+
+int __ext3_journal_forget(const char *where, handle_t *handle,
+ struct buffer_head *bh);
-#endif /* __KERNEL__ */
+int __ext3_journal_revoke(const char *where, handle_t *handle,
+ unsigned long blocknr, struct buffer_head *bh);
+
+int __ext3_journal_get_create_access(const char *where,
+ handle_t *handle, struct buffer_head *bh);
+
+int __ext3_journal_dirty_metadata(const char *where,
+ handle_t *handle, struct buffer_head *bh);
+
+#define ext3_journal_get_undo_access(handle, bh) \
+ __ext3_journal_get_undo_access(__func__, (handle), (bh))
+#define ext3_journal_get_write_access(handle, bh) \
+ __ext3_journal_get_write_access(__func__, (handle), (bh))
+#define ext3_journal_revoke(handle, blocknr, bh) \
+ __ext3_journal_revoke(__func__, (handle), (blocknr), (bh))
+#define ext3_journal_get_create_access(handle, bh) \
+ __ext3_journal_get_create_access(__func__, (handle), (bh))
+#define ext3_journal_dirty_metadata(handle, bh) \
+ __ext3_journal_dirty_metadata(__func__, (handle), (bh))
+#define ext3_journal_forget(handle, bh) \
+ __ext3_journal_forget(__func__, (handle), (bh))
+
+int ext3_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);
+
+static inline handle_t *ext3_journal_start(struct inode *inode, int nblocks)
+{
+ return ext3_journal_start_sb(inode->i_sb, nblocks);
+}
+
+#define ext3_journal_stop(handle) \
+ __ext3_journal_stop(__func__, (handle))
+
+static inline handle_t *ext3_journal_current_handle(void)
+{
+ return journal_current_handle();
+}
+
+static inline int ext3_journal_extend(handle_t *handle, int nblocks)
+{
+ return journal_extend(handle, nblocks);
+}
+
+static inline int ext3_journal_restart(handle_t *handle, int nblocks)
+{
+ return journal_restart(handle, nblocks);
+}
+
+static inline int ext3_journal_blocks_per_page(struct inode *inode)
+{
+ return journal_blocks_per_page(inode);
+}
+
+static inline int ext3_journal_force_commit(journal_t *journal)
+{
+ return journal_force_commit(journal);
+}
+
+/* super.c */
+int ext3_force_commit(struct super_block *sb);
+
+static inline int ext3_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)
+ return 1;
+ if (EXT3_I(inode)->i_flags & EXT3_JOURNAL_DATA_FL)
+ return 1;
+ return 0;
+}
+
+static inline int ext3_should_order_data(struct inode *inode)
+{
+ if (!S_ISREG(inode->i_mode))
+ return 0;
+ if (EXT3_I(inode)->i_flags & EXT3_JOURNAL_DATA_FL)
+ return 0;
+ if (test_opt(inode->i_sb, DATA_FLAGS) == EXT3_MOUNT_ORDERED_DATA)
+ return 1;
+ return 0;
+}
+
+static inline int ext3_should_writeback_data(struct inode *inode)
+{
+ if (!S_ISREG(inode->i_mode))
+ return 0;
+ if (EXT3_I(inode)->i_flags & EXT3_JOURNAL_DATA_FL)
+ return 0;
+ if (test_opt(inode->i_sb, DATA_FLAGS) == EXT3_MOUNT_WRITEBACK_DATA)
+ return 1;
+ return 0;
+}
-#endif /* _LINUX_EXT3_FS_H */
+#include <trace/events/ext3.h>
* Interface between ext3 and JBD
*/
-#include <linux/ext3_jbd.h>
+#include "ext3.h"
int __ext3_journal_get_undo_access(const char *where, handle_t *handle,
struct buffer_head *bh)
* (jj@sunsite.ms.mff.cuni.cz)
*/
-#include <linux/time.h>
-#include <linux/fs.h>
-#include <linux/jbd.h>
#include <linux/quotaops.h>
-#include <linux/ext3_fs.h>
-#include <linux/ext3_jbd.h>
+#include "ext3.h"
#include "xattr.h"
#include "acl.h"
* we can depend on generic_block_fdatasync() to sync the data blocks.
*/
-#include <linux/time.h>
#include <linux/blkdev.h>
-#include <linux/fs.h>
-#include <linux/sched.h>
#include <linux/writeback.h>
-#include <linux/jbd.h>
-#include <linux/ext3_fs.h>
-#include <linux/ext3_jbd.h>
-#include <trace/events/ext3.h>
+#include "ext3.h"
/*
* akpm: A new design for ext3_sync_file().
* License.
*/
-#include <linux/fs.h>
-#include <linux/jbd.h>
-#include <linux/ext3_fs.h>
+#include "ext3.h"
#include <linux/cryptohash.h>
#define DELTA 0x9E3779B9
* David S. Miller (davem@caip.rutgers.edu), 1995
*/
-#include <linux/time.h>
-#include <linux/fs.h>
-#include <linux/jbd.h>
-#include <linux/ext3_fs.h>
-#include <linux/ext3_jbd.h>
-#include <linux/stat.h>
-#include <linux/string.h>
#include <linux/quotaops.h>
-#include <linux/buffer_head.h>
#include <linux/random.h>
-#include <linux/bitops.h>
-#include <trace/events/ext3.h>
-
-#include <asm/byteorder.h>
+#include "ext3.h"
#include "xattr.h"
#include "acl.h"
* Assorted race fixes, rewrite of ext3_get_block() by Al Viro, 2000
*/
-#include <linux/fs.h>
-#include <linux/time.h>
-#include <linux/ext3_jbd.h>
-#include <linux/jbd.h>
#include <linux/highuid.h>
-#include <linux/pagemap.h>
#include <linux/quotaops.h>
-#include <linux/string.h>
-#include <linux/buffer_head.h>
#include <linux/writeback.h>
#include <linux/mpage.h>
-#include <linux/uio.h>
-#include <linux/bio.h>
-#include <linux/fiemap.h>
#include <linux/namei.h>
-#include <trace/events/ext3.h>
+#include "ext3.h"
#include "xattr.h"
#include "acl.h"
* Universite Pierre et Marie Curie (Paris VI)
*/
-#include <linux/fs.h>
-#include <linux/jbd.h>
-#include <linux/capability.h>
-#include <linux/ext3_fs.h>
-#include <linux/ext3_jbd.h>
#include <linux/mount.h>
-#include <linux/time.h>
#include <linux/compat.h>
#include <asm/uaccess.h>
+#include "ext3.h"
long ext3_ioctl(struct file *filp, unsigned int cmd, unsigned long arg)
{
* Theodore Ts'o, 2002
*/
-#include <linux/fs.h>
-#include <linux/pagemap.h>
-#include <linux/jbd.h>
-#include <linux/time.h>
-#include <linux/ext3_fs.h>
-#include <linux/ext3_jbd.h>
-#include <linux/fcntl.h>
-#include <linux/stat.h>
-#include <linux/string.h>
#include <linux/quotaops.h>
-#include <linux/buffer_head.h>
-#include <linux/bio.h>
-#include <trace/events/ext3.h>
-
+#include "ext3.h"
#include "namei.h"
#include "xattr.h"
#include "acl.h"
#define EXT3FS_DEBUG
-#include <linux/ext3_jbd.h>
-
-#include <linux/errno.h>
-#include <linux/slab.h>
+#include "ext3.h"
#define outside(b, first, last) ((b) < (first) || (b) >= (last))
*/
#include <linux/module.h>
-#include <linux/string.h>
-#include <linux/fs.h>
-#include <linux/time.h>
-#include <linux/jbd.h>
-#include <linux/ext3_fs.h>
-#include <linux/ext3_jbd.h>
-#include <linux/slab.h>
-#include <linux/init.h>
#include <linux/blkdev.h>
#include <linux/parser.h>
-#include <linux/buffer_head.h>
#include <linux/exportfs.h>
-#include <linux/vfs.h>
+#include <linux/statfs.h>
#include <linux/random.h>
#include <linux/mount.h>
-#include <linux/namei.h>
#include <linux/quotaops.h>
#include <linux/seq_file.h>
#include <linux/log2.h>
#include <asm/uaccess.h>
+#define CREATE_TRACE_POINTS
+
+#include "ext3.h"
#include "xattr.h"
#include "acl.h"
#include "namei.h"
-#define CREATE_TRACE_POINTS
-#include <trace/events/ext3.h>
-
#ifdef CONFIG_EXT3_DEFAULTS_TO_ORDERED
#define EXT3_MOUNT_DEFAULT_DATA_MODE EXT3_MOUNT_ORDERED_DATA
#else
* ext3 symlink handling code
*/
-#include <linux/fs.h>
-#include <linux/jbd.h>
-#include <linux/ext3_fs.h>
#include <linux/namei.h>
+#include "ext3.h"
#include "xattr.h"
static void * ext3_follow_link(struct dentry *dentry, struct nameidata *nd)
* by the buffer lock.
*/
-#include <linux/init.h>
-#include <linux/fs.h>
-#include <linux/slab.h>
-#include <linux/ext3_jbd.h>
-#include <linux/ext3_fs.h>
+#include "ext3.h"
#include <linux/mbcache.h>
#include <linux/quotaops.h>
-#include <linux/rwsem.h>
#include "xattr.h"
#include "acl.h"
* Handler for storing security labels as extended attributes.
*/
-#include <linux/slab.h>
-#include <linux/string.h>
-#include <linux/fs.h>
-#include <linux/ext3_jbd.h>
-#include <linux/ext3_fs.h>
#include <linux/security.h>
+#include "ext3.h"
#include "xattr.h"
static size_t
* Copyright (C) 2003 by Andreas Gruenbacher, <a.gruenbacher@computer.org>
*/
-#include <linux/string.h>
-#include <linux/capability.h>
-#include <linux/fs.h>
-#include <linux/ext3_jbd.h>
-#include <linux/ext3_fs.h>
+#include "ext3.h"
#include "xattr.h"
static size_t
* Copyright (C) 2001 by Andreas Gruenbacher, <a.gruenbacher@computer.org>
*/
-#include <linux/string.h>
-#include <linux/fs.h>
-#include <linux/ext3_jbd.h>
-#include <linux/ext3_fs.h>
+#include "ext3.h"
#include "xattr.h"
static size_t
+++ /dev/null
-/*
- * linux/include/linux/ext3_fs_i.h
- *
- * Copyright (C) 1992, 1993, 1994, 1995
- * Remy Card (card@masi.ibp.fr)
- * Laboratoire MASI - Institut Blaise Pascal
- * Universite Pierre et Marie Curie (Paris VI)
- *
- * from
- *
- * linux/include/linux/minix_fs_i.h
- *
- * Copyright (C) 1991, 1992 Linus Torvalds
- */
-
-#ifndef _LINUX_EXT3_FS_I
-#define _LINUX_EXT3_FS_I
-
-#include <linux/rwsem.h>
-#include <linux/rbtree.h>
-#include <linux/seqlock.h>
-#include <linux/mutex.h>
-
-/* data type for block offset of block group */
-typedef int ext3_grpblk_t;
-
-/* data type for filesystem-wide blocks number */
-typedef unsigned long ext3_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 ext3_reserve_window_node {
- struct rb_node rsv_node;
- __u32 rsv_goal_size;
- __u32 rsv_alloc_hit;
- struct ext3_reserve_window rsv_window;
-};
-
-struct ext3_block_alloc_info {
- /* information about reservation window */
- struct ext3_reserve_window_node rsv_window_node;
- /*
- * was i_next_alloc_block in ext3_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
- * is the *physical* companion to i_next_alloc_block.
- * it 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;
-};
-
-#define rsv_start rsv_window._rsv_start
-#define rsv_end rsv_window._rsv_end
-
-/*
- * third extended file system inode data in memory
- */
-struct ext3_inode_info {
- __le32 i_data[15]; /* unconverted */
- __u32 i_flags;
-#ifdef EXT3_FRAGMENTS
- __u32 i_faddr;
- __u8 i_frag_no;
- __u8 i_frag_size;
-#endif
- ext3_fsblk_t i_file_acl;
- __u32 i_dir_acl;
- __u32 i_dtime;
-
- /*
- * i_block_group is the number of the block group which contains
- * this file's inode. Constant across the lifetime of the inode,
- * it is ued for making block allocation decisions - we try to
- * place a file's data blocks near its inode block, and new inodes
- * near to their parent directory's inode.
- */
- __u32 i_block_group;
- unsigned long i_state_flags; /* Dynamic state flags for ext3 */
-
- /* block reservation info */
- struct ext3_block_alloc_info *i_block_alloc_info;
-
- __u32 i_dir_start_lookup;
-#ifdef CONFIG_EXT3_FS_XATTR
- /*
- * Extended attributes can be read independently of the main file
- * data. Taking i_mutex even when reading would cause contention
- * between readers of EAs and writers of regular file data, so
- * instead we synchronize on xattr_sem when reading or changing
- * EAs.
- */
- struct rw_semaphore xattr_sem;
-#endif
-
- struct list_head i_orphan; /* unlinked but open inodes */
-
- /*
- * 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
- * set i_disksize to 0 until the truncate is actually under way.
- *
- * The intent is that i_disksize always represents the blocks which
- * are used by this file. This allows recovery to restart truncate
- * on orphans if we crash during truncate. We actually write i_disksize
- * into the on-disk inode when writing inodes out, instead of i_size.
- *
- * 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).
- */
- loff_t i_disksize;
-
- /* on-disk additional length */
- __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
- * data tree are chopped off during truncate. We can't do that in
- * ext3 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
- * by other means, so we have truncate_mutex.
- */
- struct mutex truncate_mutex;
-
- /*
- * Transactions that contain inode's metadata needed to complete
- * fsync and fdatasync, respectively.
- */
- atomic_t i_sync_tid;
- atomic_t i_datasync_tid;
-
- struct inode vfs_inode;
-};
-
-#endif /* _LINUX_EXT3_FS_I */
+++ /dev/null
-/*
- * linux/include/linux/ext3_fs_sb.h
- *
- * Copyright (C) 1992, 1993, 1994, 1995
- * Remy Card (card@masi.ibp.fr)
- * Laboratoire MASI - Institut Blaise Pascal
- * Universite Pierre et Marie Curie (Paris VI)
- *
- * from
- *
- * linux/include/linux/minix_fs_sb.h
- *
- * Copyright (C) 1991, 1992 Linus Torvalds
- */
-
-#ifndef _LINUX_EXT3_FS_SB
-#define _LINUX_EXT3_FS_SB
-
-#ifdef __KERNEL__
-#include <linux/timer.h>
-#include <linux/wait.h>
-#include <linux/blockgroup_lock.h>
-#include <linux/percpu_counter.h>
-#endif
-#include <linux/rbtree.h>
-
-/*
- * third extended-fs super-block data in memory
- */
-struct ext3_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_frags_per_group;/* Number of fragments in a group */
- unsigned long s_blocks_per_group;/* Number of blocks in a group */
- unsigned long s_inodes_per_group;/* Number of inodes in a group */
- unsigned long s_itb_per_group; /* Number of inode table blocks per group */
- unsigned long s_gdb_count; /* Number of group descriptor blocks */
- unsigned long s_desc_per_block; /* Number of group descriptors per block */
- unsigned long s_groups_count; /* Number of groups in the fs */
- unsigned long s_overhead_last; /* Last calculated overhead */
- unsigned long s_blocks_last; /* Last seen block count */
- 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 buffer_head ** s_group_desc;
- unsigned long s_mount_opt;
- ext3_fsblk_t s_sb_block;
- uid_t s_resuid;
- gid_t s_resgid;
- unsigned short s_mount_state;
- unsigned short s_pad;
- int s_addr_per_block_bits;
- int s_desc_per_block_bits;
- int s_inode_size;
- int s_first_ino;
- spinlock_t s_next_gen_lock;
- u32 s_next_generation;
- u32 s_hash_seed[4];
- int s_def_hash_version;
- int s_hash_unsigned; /* 3 if hash should be signed, 0 if not */
- struct percpu_counter s_freeblocks_counter;
- struct percpu_counter s_freeinodes_counter;
- struct percpu_counter s_dirs_counter;
- struct blockgroup_lock *s_blockgroup_lock;
-
- /* 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;
-
- /* Journaling */
- struct inode * s_journal_inode;
- struct journal_s * s_journal;
- struct list_head s_orphan;
- struct mutex s_orphan_lock;
- struct mutex s_resize_lock;
- unsigned long s_commit_interval;
- struct block_device *journal_bdev;
-#ifdef CONFIG_QUOTA
- char *s_qf_names[MAXQUOTAS]; /* Names of quota files with journalled quota */
- int s_jquota_fmt; /* Format of quota to use */
-#endif
-};
-
-static inline spinlock_t *
-sb_bgl_lock(struct ext3_sb_info *sbi, unsigned int block_group)
-{
- return bgl_lock_ptr(sbi->s_blockgroup_lock, block_group);
-}
-
-#endif /* _LINUX_EXT3_FS_SB */
+++ /dev/null
-/*
- * linux/include/linux/ext3_jbd.h
- *
- * Written by Stephen C. Tweedie <sct@redhat.com>, 1999
- *
- * Copyright 1998--1999 Red Hat corp --- All Rights Reserved
- *
- * This file is part of the Linux kernel and is made available under
- * 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.
- */
-
-#ifndef _LINUX_EXT3_JBD_H
-#define _LINUX_EXT3_JBD_H
-
-#include <linux/fs.h>
-#include <linux/jbd.h>
-#include <linux/ext3_fs.h>
-
-#define EXT3_JOURNAL(inode) (EXT3_SB((inode)->i_sb)->s_journal)
-
-/* Define the number of blocks we need to account to a transaction to
- * modify one block of data.
- *
- * We may have to touch one inode, one bitmap buffer, up to three
- * indirection blocks, the group and superblock summaries, and the data
- * block to complete the transaction. */
-
-#define EXT3_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 the minimum size for a transaction which modifies data. This
- * needs to take into account the fact that we may end up modifying two
- * quota files too (one for the group, one for the user quota). The
- * 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 + \
- EXT3_MAXQUOTAS_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) (EXT3_MAXQUOTAS_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
- * write(2) and truncate(2) we can write more than this, but we always
- * start off at the maximum transaction size and grow the transaction
- * optimistically as we go. */
-
-#define EXT3_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
- * transaction or to start a new one. Reserve enough space here for
- * inode, bitmap, superblock, group and indirection updates for at least
- * one block, plus two quota updates. Quota allocations are not
- * needed. */
-
-#define EXT3_RESERVE_TRANS_BLOCKS 12U
-
-#define EXT3_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)
-/* 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)
-#else
-#define EXT3_QUOTA_TRANS_BLOCKS(sb) 0
-#define EXT3_QUOTA_INIT_BLOCKS(sb) 0
-#define EXT3_QUOTA_DEL_BLOCKS(sb) 0
-#endif
-#define EXT3_MAXQUOTAS_TRANS_BLOCKS(sb) (MAXQUOTAS*EXT3_QUOTA_TRANS_BLOCKS(sb))
-#define EXT3_MAXQUOTAS_INIT_BLOCKS(sb) (MAXQUOTAS*EXT3_QUOTA_INIT_BLOCKS(sb))
-#define EXT3_MAXQUOTAS_DEL_BLOCKS(sb) (MAXQUOTAS*EXT3_QUOTA_DEL_BLOCKS(sb))
-
-int
-ext3_mark_iloc_dirty(handle_t *handle,
- struct inode *inode,
- struct ext3_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 ext3_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
- * been done yet.
- */
-
-static inline void ext3_journal_release_buffer(handle_t *handle,
- struct buffer_head *bh)
-{
- journal_release_buffer(handle, bh);
-}
-
-void ext3_journal_abort_handle(const char *caller, const char *err_fn,
- struct buffer_head *bh, handle_t *handle, int err);
-
-int __ext3_journal_get_undo_access(const char *where, handle_t *handle,
- struct buffer_head *bh);
-
-int __ext3_journal_get_write_access(const char *where, handle_t *handle,
- struct buffer_head *bh);
-
-int __ext3_journal_forget(const char *where, handle_t *handle,
- struct buffer_head *bh);
-
-int __ext3_journal_revoke(const char *where, handle_t *handle,
- unsigned long blocknr, struct buffer_head *bh);
-
-int __ext3_journal_get_create_access(const char *where,
- handle_t *handle, struct buffer_head *bh);
-
-int __ext3_journal_dirty_metadata(const char *where,
- handle_t *handle, struct buffer_head *bh);
-
-#define ext3_journal_get_undo_access(handle, bh) \
- __ext3_journal_get_undo_access(__func__, (handle), (bh))
-#define ext3_journal_get_write_access(handle, bh) \
- __ext3_journal_get_write_access(__func__, (handle), (bh))
-#define ext3_journal_revoke(handle, blocknr, bh) \
- __ext3_journal_revoke(__func__, (handle), (blocknr), (bh))
-#define ext3_journal_get_create_access(handle, bh) \
- __ext3_journal_get_create_access(__func__, (handle), (bh))
-#define ext3_journal_dirty_metadata(handle, bh) \
- __ext3_journal_dirty_metadata(__func__, (handle), (bh))
-#define ext3_journal_forget(handle, bh) \
- __ext3_journal_forget(__func__, (handle), (bh))
-
-int ext3_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);
-
-static inline handle_t *ext3_journal_start(struct inode *inode, int nblocks)
-{
- return ext3_journal_start_sb(inode->i_sb, nblocks);
-}
-
-#define ext3_journal_stop(handle) \
- __ext3_journal_stop(__func__, (handle))
-
-static inline handle_t *ext3_journal_current_handle(void)
-{
- return journal_current_handle();
-}
-
-static inline int ext3_journal_extend(handle_t *handle, int nblocks)
-{
- return journal_extend(handle, nblocks);
-}
-
-static inline int ext3_journal_restart(handle_t *handle, int nblocks)
-{
- return journal_restart(handle, nblocks);
-}
-
-static inline int ext3_journal_blocks_per_page(struct inode *inode)
-{
- return journal_blocks_per_page(inode);
-}
-
-static inline int ext3_journal_force_commit(journal_t *journal)
-{
- return journal_force_commit(journal);
-}
-
-/* super.c */
-int ext3_force_commit(struct super_block *sb);
-
-static inline int ext3_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)
- return 1;
- if (EXT3_I(inode)->i_flags & EXT3_JOURNAL_DATA_FL)
- return 1;
- return 0;
-}
-
-static inline int ext3_should_order_data(struct inode *inode)
-{
- if (!S_ISREG(inode->i_mode))
- return 0;
- if (EXT3_I(inode)->i_flags & EXT3_JOURNAL_DATA_FL)
- return 0;
- if (test_opt(inode->i_sb, DATA_FLAGS) == EXT3_MOUNT_ORDERED_DATA)
- return 1;
- return 0;
-}
-
-static inline int ext3_should_writeback_data(struct inode *inode)
-{
- if (!S_ISREG(inode->i_mode))
- return 0;
- if (EXT3_I(inode)->i_flags & EXT3_JOURNAL_DATA_FL)
- return 0;
- if (test_opt(inode->i_sb, DATA_FLAGS) == EXT3_MOUNT_WRITEBACK_DATA)
- return 1;
- return 0;
-}
-
-#endif /* _LINUX_EXT3_JBD_H */
git.openpandora.org / pandora-kernel.git / commitdiff