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Merge branch 'next' of git://git.kernel.org/pub/scm/linux/kernel/git/tytso/ext4

Browse Source 
* 'next' of git://git.kernel.org/pub/scm/linux/kernel/git/tytso/ext4: (40 commits)
  ext4: Adding error check after calling ext4_mb_regular_allocator()
  ext4: Fix dirtying of journalled buffers in data=journal mode
  ext4: re-inline ext4_rec_len_(to|from)_disk functions
  jbd2: Remove t_handle_lock from start_this_handle()
  jbd2: Change j_state_lock to be a rwlock_t
  jbd2: Use atomic variables to avoid taking t_handle_lock in jbd2_journal_stop
  ext4: Add mount options in superblock
  ext4: force block allocation on quota_off
  ext4: fix freeze deadlock under IO
  ext4: drop inode from orphan list if ext4_delete_inode() fails
  ext4: check to make make sure bd_dev is set before dereferencing it
  jbd2: Make barrier messages less scary
  ext4: don't print scary messages for allocation failures post-abort
  ext4: fix EFBIG edge case when writing to large non-extent file
  ext4: fix ext4_get_blocks references
  ext4: Always journal quota file modifications
  ext4: Fix potential memory leak in ext4_fill_super
  ext4: Don't error out the fs if the user tries to make a file too big
  ext4: allocate stripe-multiple IOs on stripe boundaries
  ext4: move aio completion after unwritten extent conversion
  ...

Fix up conflicts in fs/ext4/inode.c as per Ted.

Fix up xfs conflicts as per earlier xfs merge.
This commit is contained in:
Linus Torvalds
2010-08-07 13:03:53 -07:00
parent 90e0c22596 6c7a120ac6
commit 09dc942c2a
26 changed files with 917 additions and 654 deletions
Download Patch File Download Diff File Expand all files Collapse all files
fs/ext4/acl.c
+1
View File
@@ -204,6 +204,7 @@ ext4_set_acl(handle_t *handle, struct inode *inode, int type,
return error;
else {
inode->i_mode = mode;
inode->i_ctime = ext4_current_time(inode);
ext4_mark_inode_dirty(handle, inode);
if (error == 0)
acl = NULL;
fs/ext4/balloc.c
+1 -5
View File
@@ -377,14 +377,11 @@ void ext4_add_groupblocks(handle_t *handle, struct super_block *sb,
ext4_grpblk_t bit;
unsigned int i;
struct ext4_group_desc *desc;
struct ext4_super_block *es;
struct ext4_sb_info *sbi;
struct ext4_sb_info *sbi = EXT4_SB(sb);
int err = 0, ret, blk_free_count;
ext4_grpblk_t blocks_freed;
struct ext4_group_info *grp;
sbi = EXT4_SB(sb);
es = sbi->s_es;
ext4_debug("Adding block(s) %llu-%llu\n", block, block + count - 1);
ext4_get_group_no_and_offset(sb, block, &block_group, &bit);
@@ -477,7 +474,6 @@ void ext4_add_groupblocks(handle_t *handle, struct super_block *sb,
ret = ext4_handle_dirty_metadata(handle, NULL, gd_bh);
if (!err)
err = ret;
sb->s_dirt = 1;
error_return:
brelse(bitmap_bh);
fs/ext4/block_validity.c
+6 -2
View File
@@ -229,16 +229,20 @@ int ext4_data_block_valid(struct ext4_sb_info *sbi, ext4_fsblk_t start_blk,
if ((start_blk <= le32_to_cpu(sbi->s_es->s_first_data_block)) ||
(start_blk + count < start_blk) ||
(start_blk + count > ext4_blocks_count(sbi->s_es)))
(start_blk + count > ext4_blocks_count(sbi->s_es))) {
sbi->s_es->s_last_error_block = cpu_to_le64(start_blk);
return 0;
}
while (n) {
entry = rb_entry(n, struct ext4_system_zone, node);
if (start_blk + count - 1 < entry->start_blk)
n = n->rb_left;
else if (start_blk >= (entry->start_blk + entry->count))
n = n->rb_right;
else
else {
sbi->s_es->s_last_error_block = cpu_to_le64(start_blk);
return 0;
}
}
return 1;
}
fs/ext4/dir.c
+12 -11
View File
@@ -61,10 +61,11 @@ static unsigned char get_dtype(struct super_block *sb, int filetype)
}
int ext4_check_dir_entry(const char *function, struct inode *dir,
struct ext4_dir_entry_2 *de,
struct buffer_head *bh,
unsigned int offset)
int __ext4_check_dir_entry(const char *function, unsigned int line,
struct inode *dir,
struct ext4_dir_entry_2 *de,
struct buffer_head *bh,
unsigned int offset)
{
const char *error_msg = NULL;
const int rlen = ext4_rec_len_from_disk(de->rec_len,
@@ -83,11 +84,10 @@ int ext4_check_dir_entry(const char *function, struct inode *dir,
error_msg = "inode out of bounds";
if (error_msg != NULL)
ext4_error_inode(function, dir,
"bad entry in directory: %s - block=%llu"
ext4_error_inode(dir, function, line, bh->b_blocknr,
"bad entry in directory: %s - "
"offset=%u(%u), inode=%u, rec_len=%d, name_len=%d",
error_msg, (unsigned long long) bh->b_blocknr,
(unsigned) (offset%bh->b_size), offset,
error_msg, (unsigned) (offset%bh->b_size), offset,
le32_to_cpu(de->inode),
rlen, de->name_len);
return error_msg == NULL ? 1 : 0;
@@ -121,7 +121,8 @@ static int ext4_readdir(struct file *filp,
* We don't set the inode dirty flag since it's not
* critical that it get flushed back to the disk.
*/
ext4_clear_inode_flag(filp->f_path.dentry->d_inode, EXT4_INODE_INDEX);
ext4_clear_inode_flag(filp->f_path.dentry->d_inode,
EXT4_INODE_INDEX);
}
stored = 0;
offset = filp->f_pos & (sb->s_blocksize - 1);
@@ -193,7 +194,7 @@ revalidate:
while (!error && filp->f_pos < inode->i_size
&& offset < sb->s_blocksize) {
de = (struct ext4_dir_entry_2 *) (bh->b_data + offset);
if (!ext4_check_dir_entry("ext4_readdir", inode, de,
if (!ext4_check_dir_entry(inode, de,
bh, offset)) {
/*
* On error, skip the f_pos to the next block
@@ -343,7 +344,7 @@ int ext4_htree_store_dirent(struct file *dir_file, __u32 hash,
struct dir_private_info *info;
int len;
info = (struct dir_private_info *) dir_file->private_data;
info = dir_file->private_data;
p = &info->root.rb_node;
/* Create and allocate the fname structure */
fs/ext4/ext4.h
+119 -33
View File
@@ -57,10 +57,13 @@
#endif
#define EXT4_ERROR_INODE(inode, fmt, a...) \
ext4_error_inode(__func__, (inode), (fmt), ## a)
ext4_error_inode((inode), __func__, __LINE__, 0, (fmt), ## a)
#define EXT4_ERROR_INODE_BLOCK(inode, block, fmt, a...) \
ext4_error_inode((inode), __func__, __LINE__, (block), (fmt), ## a)
#define EXT4_ERROR_FILE(file, fmt, a...) \
ext4_error_file(__func__, (file), (fmt), ## a)
ext4_error_file(__func__, __LINE__, (file), (fmt), ## a)
/* data type for block offset of block group */
typedef int ext4_grpblk_t;
@@ -167,13 +170,15 @@ struct mpage_da_data {
};
#define EXT4_IO_UNWRITTEN 0x1
typedef struct ext4_io_end {
struct list_head list; /* per-file finished AIO list */
struct list_head list; /* per-file finished IO list */
struct inode *inode; /* file being written to */
unsigned int flag; /* unwritten or not */
struct page *page; /* page struct for buffer write */
loff_t offset; /* offset in the file */
ssize_t size; /* size of the extent */
struct work_struct work; /* data work queue */
struct kiocb *iocb; /* iocb struct for AIO */
int result; /* error value for AIO */
} ext4_io_end_t;
/*
@@ -460,7 +465,7 @@ struct ext4_new_group_data {
};
/*
* Flags used by ext4_get_blocks()
* Flags used by ext4_map_blocks()
*/
/* Allocate any needed blocks and/or convert an unitialized
extent to be an initialized ext4 */
@@ -873,7 +878,6 @@ struct ext4_inode_info {
#define EXT4_MOUNT_POSIX_ACL 0x08000 /* POSIX Access Control Lists */
#define EXT4_MOUNT_NO_AUTO_DA_ALLOC 0x10000 /* No auto delalloc mapping */
#define EXT4_MOUNT_BARRIER 0x20000 /* Use block barriers */
#define EXT4_MOUNT_NOBH 0x40000 /* No bufferheads */
#define EXT4_MOUNT_QUOTA 0x80000 /* Some quota option set */
#define EXT4_MOUNT_USRQUOTA 0x100000 /* "old" user quota */
#define EXT4_MOUNT_GRPQUOTA 0x200000 /* "old" group quota */
@@ -982,7 +986,7 @@ struct ext4_super_block {
__le32 s_last_orphan; /* start of list of inodes to delete */
__le32 s_hash_seed[4]; /* HTREE hash seed */
__u8 s_def_hash_version; /* Default hash version to use */
__u8 s_reserved_char_pad;
__u8 s_jnl_backup_type;
__le16 s_desc_size; /* size of group descriptor */
/*100*/ __le32 s_default_mount_opts;
__le32 s_first_meta_bg; /* First metablock block group */
@@ -1000,12 +1004,34 @@ struct ext4_super_block {
__le64 s_mmp_block; /* Block for multi-mount protection */
__le32 s_raid_stripe_width; /* blocks on all data disks (N*stride)*/
__u8 s_log_groups_per_flex; /* FLEX_BG group size */
__u8 s_reserved_char_pad2;
__u8 s_reserved_char_pad;
__le16 s_reserved_pad;
__le64 s_kbytes_written; /* nr of lifetime kilobytes written */
__u32 s_reserved[160]; /* Padding to the end of the block */
__le32 s_snapshot_inum; /* Inode number of active snapshot */
__le32 s_snapshot_id; /* sequential ID of active snapshot */
__le64 s_snapshot_r_blocks_count; /* reserved blocks for active
snapshot's future use */
__le32 s_snapshot_list; /* inode number of the head of the
on-disk snapshot list */
#define EXT4_S_ERR_START offsetof(struct ext4_super_block, s_error_count)
__le32 s_error_count; /* number of fs errors */
__le32 s_first_error_time; /* first time an error happened */
__le32 s_first_error_ino; /* inode involved in first error */
__le64 s_first_error_block; /* block involved of first error */
__u8 s_first_error_func[32]; /* function where the error happened */
__le32 s_first_error_line; /* line number where error happened */
__le32 s_last_error_time; /* most recent time of an error */
__le32 s_last_error_ino; /* inode involved in last error */
__le32 s_last_error_line; /* line number where error happened */
__le64 s_last_error_block; /* block involved of last error */
__u8 s_last_error_func[32]; /* function where the error happened */
#define EXT4_S_ERR_END offsetof(struct ext4_super_block, s_mount_opts)
__u8 s_mount_opts[64];
__le32 s_reserved[112]; /* Padding to the end of the block */
};
#define EXT4_S_ERR_LEN (EXT4_S_ERR_END - EXT4_S_ERR_START)
#ifdef __KERNEL__
/*
@@ -1143,6 +1169,9 @@ struct ext4_sb_info {
/* workqueue for dio unwritten */
struct workqueue_struct *dio_unwritten_wq;
/* timer for periodic error stats printing */
struct timer_list s_err_report;
};
static inline struct ext4_sb_info *EXT4_SB(struct super_block *sb)
@@ -1313,6 +1342,10 @@ EXT4_INODE_BIT_FNS(state, state_flags)
#define EXT4_DEFM_JMODE_DATA 0x0020
#define EXT4_DEFM_JMODE_ORDERED 0x0040
#define EXT4_DEFM_JMODE_WBACK 0x0060
#define EXT4_DEFM_NOBARRIER 0x0100
#define EXT4_DEFM_BLOCK_VALIDITY 0x0200
#define EXT4_DEFM_DISCARD 0x0400
#define EXT4_DEFM_NODELALLOC 0x0800
/*
* Default journal batch times
@@ -1378,6 +1411,43 @@ struct ext4_dir_entry_2 {
~EXT4_DIR_ROUND)
#define EXT4_MAX_REC_LEN ((1<<16)-1)
/*
* If we ever get support for fs block sizes > page_size, we'll need
* to remove the #if statements in the next two functions...
*/
static inline unsigned int
ext4_rec_len_from_disk(__le16 dlen, unsigned blocksize)
{
unsigned len = le16_to_cpu(dlen);
#if (PAGE_CACHE_SIZE >= 65536)
if (len == EXT4_MAX_REC_LEN || len == 0)
return blocksize;
return (len & 65532) | ((len & 3) << 16);
#else
return len;
#endif
}
static inline __le16 ext4_rec_len_to_disk(unsigned len, unsigned blocksize)
{
if ((len > blocksize) || (blocksize > (1 << 18)) || (len & 3))
BUG();
#if (PAGE_CACHE_SIZE >= 65536)
if (len < 65536)
return cpu_to_le16(len);
if (len == blocksize) {
if (blocksize == 65536)
return cpu_to_le16(EXT4_MAX_REC_LEN);
else
return cpu_to_le16(0);
}
return cpu_to_le16((len & 65532) | ((len >> 16) & 3));
#else
return cpu_to_le16(len);
#endif
}
/*
* Hash Tree Directory indexing
* (c) Daniel Phillips, 2001
@@ -1510,9 +1580,11 @@ extern unsigned ext4_init_block_bitmap(struct super_block *sb,
ext4_init_block_bitmap(sb, NULL, group, desc)
/* dir.c */
extern int ext4_check_dir_entry(const char *, struct inode *,
struct ext4_dir_entry_2 *,
struct buffer_head *, unsigned int);
extern int __ext4_check_dir_entry(const char *, unsigned int, struct inode *,
struct ext4_dir_entry_2 *,
struct buffer_head *, unsigned int);
#define ext4_check_dir_entry(dir, de, bh, offset) \
__ext4_check_dir_entry(__func__, __LINE__, (dir), (de), (bh), (offset))
extern int ext4_htree_store_dirent(struct file *dir_file, __u32 hash,
__u32 minor_hash,
struct ext4_dir_entry_2 *dirent);
@@ -1601,8 +1673,6 @@ extern long ext4_compat_ioctl(struct file *, unsigned int, unsigned long);
extern int ext4_ext_migrate(struct inode *);
/* namei.c */
extern unsigned int ext4_rec_len_from_disk(__le16 dlen, unsigned blocksize);
extern __le16 ext4_rec_len_to_disk(unsigned len, unsigned blocksize);
extern int ext4_orphan_add(handle_t *, struct inode *);
extern int ext4_orphan_del(handle_t *, struct inode *);
extern int ext4_htree_fill_tree(struct file *dir_file, __u32 start_hash,
@@ -1616,25 +1686,38 @@ extern int ext4_group_extend(struct super_block *sb,
ext4_fsblk_t n_blocks_count);
/* super.c */
extern void __ext4_error(struct super_block *, const char *, const char *, ...)
__attribute__ ((format (printf, 3, 4)));
#define ext4_error(sb, message...) __ext4_error(sb, __func__, ## message)
extern void ext4_error_inode(const char *, struct inode *, const char *, ...)
__attribute__ ((format (printf, 3, 4)));
extern void ext4_error_file(const char *, struct file *, const char *, ...)
__attribute__ ((format (printf, 3, 4)));
extern void __ext4_std_error(struct super_block *, const char *, int);
extern void ext4_abort(struct super_block *, const char *, const char *, ...)
__attribute__ ((format (printf, 3, 4)));
extern void __ext4_warning(struct super_block *, const char *,
extern void __ext4_error(struct super_block *, const char *, unsigned int,
const char *, ...)
__attribute__ ((format (printf, 4, 5)));
#define ext4_error(sb, message...) __ext4_error(sb, __func__, \
__LINE__, ## message)
extern void ext4_error_inode(struct inode *, const char *, unsigned int,
ext4_fsblk_t, const char *, ...)
__attribute__ ((format (printf, 5, 6)));
extern void ext4_error_file(struct file *, const char *, unsigned int,
const char *, ...)
__attribute__ ((format (printf, 4, 5)));
extern void __ext4_std_error(struct super_block *, const char *,
unsigned int, int);
extern void __ext4_abort(struct super_block *, const char *, unsigned int,
const char *, ...)
__attribute__ ((format (printf, 4, 5)));
#define ext4_abort(sb, message...) __ext4_abort(sb, __func__, \
__LINE__, ## message)
extern void __ext4_warning(struct super_block *, const char *, unsigned int,
const char *, ...)
__attribute__ ((format (printf, 3, 4)));
#define ext4_warning(sb, message...) __ext4_warning(sb, __func__, ## message)
__attribute__ ((format (printf, 4, 5)));
#define ext4_warning(sb, message...) __ext4_warning(sb, __func__, \
__LINE__, ## message)
extern void ext4_msg(struct super_block *, const char *, const char *, ...)
__attribute__ ((format (printf, 3, 4)));
extern void ext4_grp_locked_error(struct super_block *, ext4_group_t,
const char *, const char *, ...)
__attribute__ ((format (printf, 4, 5)));
extern void __ext4_grp_locked_error(const char *, unsigned int, \
struct super_block *, ext4_group_t, \
unsigned long, ext4_fsblk_t, \
const char *, ...)
__attribute__ ((format (printf, 7, 8)));
#define ext4_grp_locked_error(sb, grp, message...) \
__ext4_grp_locked_error(__func__, __LINE__, (sb), (grp), ## message)
extern void ext4_update_dynamic_rev(struct super_block *sb);
extern int ext4_update_compat_feature(handle_t *handle, struct super_block *sb,
__u32 compat);
@@ -1768,7 +1851,7 @@ static inline unsigned int ext4_flex_bg_size(struct ext4_sb_info *sbi)
#define ext4_std_error(sb, errno) \
do { \
if ((errno)) \
__ext4_std_error((sb), __func__, (errno)); \
__ext4_std_error((sb), __func__, __LINE__, (errno)); \
} while (0)
#ifdef CONFIG_SMP
@@ -1860,6 +1943,12 @@ static inline void ext4_unlock_group(struct super_block *sb,
spin_unlock(ext4_group_lock_ptr(sb, group));
}
static inline void ext4_mark_super_dirty(struct super_block *sb)
{
if (EXT4_SB(sb)->s_journal == NULL)
sb->s_dirt =1;
}
/*
* Inodes and files operations
*/
@@ -1905,9 +1994,6 @@ extern int ext4_convert_unwritten_extents(struct inode *inode, loff_t offset,
ssize_t len);
extern int ext4_map_blocks(handle_t *handle, struct inode *inode,
struct ext4_map_blocks *map, int flags);
extern int ext4_get_blocks(handle_t *handle, struct inode *inode,
sector_t block, unsigned int max_blocks,
struct buffer_head *bh, int flags);
extern int ext4_fiemap(struct inode *inode, struct fiemap_extent_info *fieinfo,
__u64 start, __u64 len);
/* move_extent.c */
fs/ext4/ext4_jbd2.c
+46 -25
View File
@@ -6,29 +6,29 @@
#include <trace/events/ext4.h>
int __ext4_journal_get_undo_access(const char *where, handle_t *handle,
struct buffer_head *bh)
int __ext4_journal_get_undo_access(const char *where, unsigned int line,
handle_t *handle, struct buffer_head *bh)
{
int err = 0;
if (ext4_handle_valid(handle)) {
err = jbd2_journal_get_undo_access(handle, bh);
if (err)
ext4_journal_abort_handle(where, __func__, bh,
ext4_journal_abort_handle(where, line, __func__, bh,
handle, err);
}
return err;
}
int __ext4_journal_get_write_access(const char *where, handle_t *handle,
struct buffer_head *bh)
int __ext4_journal_get_write_access(const char *where, unsigned int line,
handle_t *handle, struct buffer_head *bh)
{
int err = 0;
if (ext4_handle_valid(handle)) {
err = jbd2_journal_get_write_access(handle, bh);
if (err)
ext4_journal_abort_handle(where, __func__, bh,
ext4_journal_abort_handle(where, line, __func__, bh,
handle, err);
}
return err;
@@ -46,9 +46,9 @@ int __ext4_journal_get_write_access(const char *where, handle_t *handle,
* If the handle isn't valid we're not journaling, but we still need to
* call into ext4_journal_revoke() to put the buffer head.
*/
int __ext4_forget(const char *where, handle_t *handle, int is_metadata,
struct inode *inode, struct buffer_head *bh,
ext4_fsblk_t blocknr)
int __ext4_forget(const char *where, unsigned int line, handle_t *handle,
int is_metadata, struct inode *inode,
struct buffer_head *bh, ext4_fsblk_t blocknr)
{
int err;
@@ -79,8 +79,8 @@ int __ext4_forget(const char *where, handle_t *handle, int is_metadata,
BUFFER_TRACE(bh, "call jbd2_journal_forget");
err = jbd2_journal_forget(handle, bh);
if (err)
ext4_journal_abort_handle(where, __func__, bh,
handle, err);
ext4_journal_abort_handle(where, line, __func__,
bh, handle, err);
return err;
}
return 0;
@@ -92,15 +92,16 @@ int __ext4_forget(const char *where, handle_t *handle, int is_metadata,
BUFFER_TRACE(bh, "call jbd2_journal_revoke");
err = jbd2_journal_revoke(handle, blocknr, bh);
if (err) {
ext4_journal_abort_handle(where, __func__, bh, handle, err);
ext4_abort(inode->i_sb, __func__,
ext4_journal_abort_handle(where, line, __func__,
bh, handle, err);
__ext4_abort(inode->i_sb, where, line,
"error %d when attempting revoke", err);
}
BUFFER_TRACE(bh, "exit");
return err;
}
int __ext4_journal_get_create_access(const char *where,
int __ext4_journal_get_create_access(const char *where, unsigned int line,
handle_t *handle, struct buffer_head *bh)
{
int err = 0;
@@ -108,22 +109,23 @@ int __ext4_journal_get_create_access(const char *where,
if (ext4_handle_valid(handle)) {
err = jbd2_journal_get_create_access(handle, bh);
if (err)
ext4_journal_abort_handle(where, __func__, bh,
handle, err);
ext4_journal_abort_handle(where, line, __func__,
bh, handle, err);
}
return err;
}
int __ext4_handle_dirty_metadata(const char *where, handle_t *handle,
struct inode *inode, struct buffer_head *bh)
int __ext4_handle_dirty_metadata(const char *where, unsigned int line,
handle_t *handle, struct inode *inode,
struct buffer_head *bh)
{
int err = 0;
if (ext4_handle_valid(handle)) {
err = jbd2_journal_dirty_metadata(handle, bh);
if (err)
ext4_journal_abort_handle(where, __func__, bh,
handle, err);
ext4_journal_abort_handle(where, line, __func__,
bh, handle, err);
} else {
if (inode)
mark_buffer_dirty_inode(bh, inode);
@@ -132,14 +134,33 @@ int __ext4_handle_dirty_metadata(const char *where, handle_t *handle,
if (inode && inode_needs_sync(inode)) {
sync_dirty_buffer(bh);
if (buffer_req(bh) && !buffer_uptodate(bh)) {
ext4_error(inode->i_sb,
"IO error syncing inode, "
"inode=%lu, block=%llu",
inode->i_ino,
(unsigned long long) bh->b_blocknr);
struct ext4_super_block *es;
es = EXT4_SB(inode->i_sb)->s_es;
es->s_last_error_block =
cpu_to_le64(bh->b_blocknr);
ext4_error_inode(inode, where, line,
bh->b_blocknr,
"IO error syncing itable block");
err = -EIO;
}
}
}
return err;
}
int __ext4_handle_dirty_super(const char *where, unsigned int line,
handle_t *handle, struct super_block *sb)
{
struct buffer_head *bh = EXT4_SB(sb)->s_sbh;
int err = 0;
if (ext4_handle_valid(handle)) {
err = jbd2_journal_dirty_metadata(handle, bh);
if (err)
ext4_journal_abort_handle(where, line, __func__,
bh, handle, err);
} else
sb->s_dirt = 1;
return err;
}
fs/ext4/ext4_jbd2.h
+31 -25
View File
@@ -122,39 +122,47 @@ int ext4_mark_inode_dirty(handle_t *handle, struct inode *inode);
/*
* Wrapper functions with which ext4 calls into JBD.
*/
void ext4_journal_abort_handle(const char *caller, const char *err_fn,
void ext4_journal_abort_handle(const char *caller, unsigned int line,
const char *err_fn,
struct buffer_head *bh, handle_t *handle, int err);
int __ext4_journal_get_undo_access(const char *where, handle_t *handle,
struct buffer_head *bh);
int __ext4_journal_get_undo_access(const char *where, unsigned int line,
handle_t *handle, struct buffer_head *bh);
int __ext4_journal_get_write_access(const char *where, handle_t *handle,
struct buffer_head *bh);
int __ext4_journal_get_write_access(const char *where, unsigned int line,
handle_t *handle, struct buffer_head *bh);
int __ext4_forget(const char *where, handle_t *handle, int is_metadata,
struct inode *inode, struct buffer_head *bh,
ext4_fsblk_t blocknr);
int __ext4_forget(const char *where, unsigned int line, handle_t *handle,
int is_metadata, struct inode *inode,
struct buffer_head *bh, ext4_fsblk_t blocknr);
int __ext4_journal_get_create_access(const char *where,
int __ext4_journal_get_create_access(const char *where, unsigned int line,
handle_t *handle, struct buffer_head *bh);
int __ext4_handle_dirty_metadata(const char *where, handle_t *handle,
struct inode *inode, struct buffer_head *bh);
int __ext4_handle_dirty_metadata(const char *where, unsigned int line,
handle_t *handle, struct inode *inode,
struct buffer_head *bh);
int __ext4_handle_dirty_super(const char *where, unsigned int line,
handle_t *handle, struct super_block *sb);
#define ext4_journal_get_undo_access(handle, bh) \
__ext4_journal_get_undo_access(__func__, (handle), (bh))
__ext4_journal_get_undo_access(__func__, __LINE__, (handle), (bh))
#define ext4_journal_get_write_access(handle, bh) \
__ext4_journal_get_write_access(__func__, (handle), (bh))
__ext4_journal_get_write_access(__func__, __LINE__, (handle), (bh))
#define ext4_forget(handle, is_metadata, inode, bh, block_nr) \
__ext4_forget(__func__, (handle), (is_metadata), (inode), (bh),\
(block_nr))
__ext4_forget(__func__, __LINE__, (handle), (is_metadata), (inode), \
(bh), (block_nr))
#define ext4_journal_get_create_access(handle, bh) \
__ext4_journal_get_create_access(__func__, (handle), (bh))
__ext4_journal_get_create_access(__func__, __LINE__, (handle), (bh))
#define ext4_handle_dirty_metadata(handle, inode, bh) \
__ext4_handle_dirty_metadata(__func__, (handle), (inode), (bh))
__ext4_handle_dirty_metadata(__func__, __LINE__, (handle), (inode), \
(bh))
#define ext4_handle_dirty_super(handle, sb) \
__ext4_handle_dirty_super(__func__, __LINE__, (handle), (sb))
handle_t *ext4_journal_start_sb(struct super_block *sb, int nblocks);
int __ext4_journal_stop(const char *where, handle_t *handle);
int __ext4_journal_stop(const char *where, unsigned int line, handle_t *handle);
#define EXT4_NOJOURNAL_MAX_REF_COUNT ((unsigned long) 4096)
@@ -207,7 +215,7 @@ static inline handle_t *ext4_journal_start(struct inode *inode, int nblocks)
}
#define ext4_journal_stop(handle) \
__ext4_journal_stop(__func__, (handle))
__ext4_journal_stop(__func__, __LINE__, (handle))
static inline handle_t *ext4_journal_current_handle(void)
{
@@ -308,17 +316,15 @@ static inline int ext4_should_writeback_data(struct inode *inode)
* This function controls whether or not we should try to go down the
* dioread_nolock code paths, which makes it safe to avoid taking
* i_mutex for direct I/O reads. This only works for extent-based
* files, and it doesn't work for nobh or if data journaling is
* enabled, since the dioread_nolock code uses b_private to pass
* information back to the I/O completion handler, and this conflicts
* with the jbd's use of b_private.
* files, and it doesn't work if data journaling is enabled, since the
* dioread_nolock code uses b_private to pass information back to the
* I/O completion handler, and this conflicts with the jbd's use of
* b_private.
*/
static inline int ext4_should_dioread_nolock(struct inode *inode)
{
if (!test_opt(inode->i_sb, DIOREAD_NOLOCK))
return 0;
if (test_opt(inode->i_sb, NOBH))
return 0;
if (!S_ISREG(inode->i_mode))
return 0;
if (!(ext4_test_inode_flag(inode, EXT4_INODE_EXTENTS)))
fs/ext4/extents.c
+7 -11
View File
@@ -401,9 +401,9 @@ static int ext4_valid_extent_entries(struct inode *inode,
return 1;
}
static int __ext4_ext_check(const char *function, struct inode *inode,
struct ext4_extent_header *eh,
int depth)
static int __ext4_ext_check(const char *function, unsigned int line,
struct inode *inode, struct ext4_extent_header *eh,
int depth)
{
const char *error_msg;
int max = 0;
@@ -436,7 +436,7 @@ static int __ext4_ext_check(const char *function, struct inode *inode,
return 0;
corrupted:
ext4_error_inode(function, inode,
ext4_error_inode(inode, function, line, 0,
"bad header/extent: %s - magic %x, "
"entries %u, max %u(%u), depth %u(%u)",
error_msg, le16_to_cpu(eh->eh_magic),
@@ -447,7 +447,7 @@ corrupted:
}
#define ext4_ext_check(inode, eh, depth) \
__ext4_ext_check(__func__, inode, eh, depth)
__ext4_ext_check(__func__, __LINE__, inode, eh, depth)
int ext4_ext_check_inode(struct inode *inode)
{
@@ -1083,7 +1083,6 @@ static int ext4_ext_grow_indepth(handle_t *handle, struct inode *inode,
{
struct ext4_ext_path *curp = path;
struct ext4_extent_header *neh;
struct ext4_extent_idx *fidx;
struct buffer_head *bh;
ext4_fsblk_t newblock;
int err = 0;
@@ -1144,10 +1143,10 @@ static int ext4_ext_grow_indepth(handle_t *handle, struct inode *inode,
ext4_idx_store_pblock(curp->p_idx, newblock);
neh = ext_inode_hdr(inode);
fidx = EXT_FIRST_INDEX(neh);
ext_debug("new root: num %d(%d), lblock %d, ptr %llu\n",
le16_to_cpu(neh->eh_entries), le16_to_cpu(neh->eh_max),
le32_to_cpu(fidx->ei_block), idx_pblock(fidx));
le32_to_cpu(EXT_FIRST_INDEX(neh)->ei_block),
idx_pblock(EXT_FIRST_INDEX(neh)));
neh->eh_depth = cpu_to_le16(path->p_depth + 1);
err = ext4_ext_dirty(handle, inode, curp);
@@ -2954,7 +2953,6 @@ static int ext4_split_unwritten_extents(handle_t *handle,
struct ext4_extent *ex1 = NULL;
struct ext4_extent *ex2 = NULL;
struct ext4_extent *ex3 = NULL;
struct ext4_extent_header *eh;
ext4_lblk_t ee_block, eof_block;
unsigned int allocated, ee_len, depth;
ext4_fsblk_t newblock;
@@ -2971,7 +2969,6 @@ static int ext4_split_unwritten_extents(handle_t *handle,
eof_block = map->m_lblk + map->m_len;
depth = ext_depth(inode);
eh = path[depth].p_hdr;
ex = path[depth].p_ext;
ee_block = le32_to_cpu(ex->ee_block);
ee_len = ext4_ext_get_actual_len(ex);
@@ -3058,7 +3055,6 @@ static int ext4_split_unwritten_extents(handle_t *handle,
err = PTR_ERR(path);
goto out;
}
eh = path[depth].p_hdr;
ex = path[depth].p_ext;
if (ex2 != &newex)
ex2 = ex;
fs/ext4/file.c
+3 -2
View File
@@ -70,7 +70,8 @@ ext4_file_write(struct kiocb *iocb, const struct iovec *iov,
struct ext4_sb_info *sbi = EXT4_SB(inode->i_sb);
size_t length = iov_length(iov, nr_segs);
if (pos > sbi->s_bitmap_maxbytes)
if ((pos > sbi->s_bitmap_maxbytes ||
(pos == sbi->s_bitmap_maxbytes && length > 0)))
return -EFBIG;
if (pos + length > sbi->s_bitmap_maxbytes) {
@@ -123,7 +124,7 @@ static int ext4_file_open(struct inode * inode, struct file * filp)
if (!IS_ERR(cp)) {
memcpy(sbi->s_es->s_last_mounted, cp,
sizeof(sbi->s_es->s_last_mounted));
sb->s_dirt = 1;
ext4_mark_super_dirty(sb);
}
}
return dquot_file_open(inode, filp);
fs/ext4/ialloc.c
+2 -2
View File
@@ -279,7 +279,7 @@ out:
err = ext4_handle_dirty_metadata(handle, NULL, bitmap_bh);
if (!fatal)
fatal = err;
sb->s_dirt = 1;
ext4_mark_super_dirty(sb);
} else
ext4_error(sb, "bit already cleared for inode %lu", ino);
@@ -965,7 +965,7 @@ got:
percpu_counter_dec(&sbi->s_freeinodes_counter);
if (S_ISDIR(mode))
percpu_counter_inc(&sbi->s_dirs_counter);
sb->s_dirt = 1;
ext4_mark_super_dirty(sb);
if (sbi->s_log_groups_per_flex) {
flex_group = ext4_flex_group(sbi, group);
fs/ext4/inode.c
+103 -102
View File
@@ -221,6 +221,7 @@ void ext4_delete_inode(struct inode *inode)
"couldn't extend journal (err %d)", err);
stop_handle:
ext4_journal_stop(handle);
ext4_orphan_del(NULL, inode);
goto no_delete;
}
}
@@ -337,9 +338,11 @@ static int ext4_block_to_path(struct inode *inode,
return n;
}
static int __ext4_check_blockref(const char *function, struct inode *inode,
static int __ext4_check_blockref(const char *function, unsigned int line,
struct inode *inode,
__le32 *p, unsigned int max)
{
struct ext4_super_block *es = EXT4_SB(inode->i_sb)->s_es;
__le32 *bref = p;
unsigned int blk;
@@ -348,8 +351,9 @@ static int __ext4_check_blockref(const char *function, struct inode *inode,
if (blk &&
unlikely(!ext4_data_block_valid(EXT4_SB(inode->i_sb),
blk, 1))) {
ext4_error_inode(function, inode,
"invalid block reference %u", blk);
es->s_last_error_block = cpu_to_le64(blk);
ext4_error_inode(inode, function, line, blk,
"invalid block");
return -EIO;
}
}
@@ -358,11 +362,13 @@ static int __ext4_check_blockref(const char *function, struct inode *inode,
#define ext4_check_indirect_blockref(inode, bh) \
__ext4_check_blockref(__func__, inode, (__le32 *)(bh)->b_data, \
__ext4_check_blockref(__func__, __LINE__, inode, \
(__le32 *)(bh)->b_data, \
EXT4_ADDR_PER_BLOCK((inode)->i_sb))
#define ext4_check_inode_blockref(inode) \
__ext4_check_blockref(__func__, inode, EXT4_I(inode)->i_data, \
__ext4_check_blockref(__func__, __LINE__, inode, \
EXT4_I(inode)->i_data, \
EXT4_NDIR_BLOCKS)
/**
@@ -1128,20 +1134,24 @@ void ext4_da_update_reserve_space(struct inode *inode,
ext4_discard_preallocations(inode);
}
static int check_block_validity(struct inode *inode, const char *func,
static int __check_block_validity(struct inode *inode, const char *func,
unsigned int line,
struct ext4_map_blocks *map)
{
if (!ext4_data_block_valid(EXT4_SB(inode->i_sb), map->m_pblk,
map->m_len)) {
ext4_error_inode(func, inode,
"lblock %lu mapped to illegal pblock %llu "
"(length %d)", (unsigned long) map->m_lblk,
map->m_pblk, map->m_len);
ext4_error_inode(inode, func, line, map->m_pblk,
"lblock %lu mapped to illegal pblock "
"(length %d)", (unsigned long) map->m_lblk,
map->m_len);
return -EIO;
}
return 0;
}
#define check_block_validity(inode, map) \
__check_block_validity((inode), __func__, __LINE__, (map))
/*
* Return the number of contiguous dirty pages in a given inode
* starting at page frame idx.
@@ -1244,7 +1254,7 @@ int ext4_map_blocks(handle_t *handle, struct inode *inode,
up_read((&EXT4_I(inode)->i_data_sem));
if (retval > 0 && map->m_flags & EXT4_MAP_MAPPED) {
int ret = check_block_validity(inode, __func__, map);
int ret = check_block_validity(inode, map);
if (ret != 0)
return ret;
}
@@ -1324,9 +1334,7 @@ int ext4_map_blocks(handle_t *handle, struct inode *inode,
up_write((&EXT4_I(inode)->i_data_sem));
if (retval > 0 && map->m_flags & EXT4_MAP_MAPPED) {
int ret = check_block_validity(inode,
"ext4_map_blocks_after_alloc",
map);
int ret = check_block_validity(inode, map);
if (ret != 0)
return ret;
}
@@ -1519,9 +1527,25 @@ static int walk_page_buffers(handle_t *handle,
static int do_journal_get_write_access(handle_t *handle,
struct buffer_head *bh)
{
int dirty = buffer_dirty(bh);
int ret;
if (!buffer_mapped(bh) || buffer_freed(bh))
return 0;
return ext4_journal_get_write_access(handle, bh);
/*
* __block_prepare_write() could have dirtied some buffers. Clean
* the dirty bit as jbd2_journal_get_write_access() could complain
* otherwise about fs integrity issues. Setting of the dirty bit
* by __block_prepare_write() isn't a real problem here as we clear
* the bit before releasing a page lock and thus writeback cannot
* ever write the buffer.
*/
if (dirty)
clear_buffer_dirty(bh);
ret = ext4_journal_get_write_access(handle, bh);
if (!ret && dirty)
ret = ext4_handle_dirty_metadata(handle, NULL, bh);
return ret;
}
/*
@@ -2194,7 +2218,7 @@ static int mpage_da_map_blocks(struct mpage_da_data *mpd)
BUG_ON(!handle);
/*
* Call ext4_get_blocks() to allocate any delayed allocation
* Call ext4_map_blocks() to allocate any delayed allocation
* blocks, or to convert an uninitialized extent to be
* initialized (in the case where we have written into
* one or more preallocated blocks).
@@ -2203,7 +2227,7 @@ static int mpage_da_map_blocks(struct mpage_da_data *mpd)
* indicate that we are on the delayed allocation path. This
* affects functions in many different parts of the allocation
* call path. This flag exists primarily because we don't
* want to change *many* call functions, so ext4_get_blocks()
* want to change *many* call functions, so ext4_map_blocks()
* will set the magic i_delalloc_reserved_flag once the
* inode's allocation semaphore is taken.
*
@@ -2221,6 +2245,8 @@ static int mpage_da_map_blocks(struct mpage_da_data *mpd)
blks = ext4_map_blocks(handle, mpd->inode, &map, get_blocks_flags);
if (blks < 0) {
struct super_block *sb = mpd->inode->i_sb;
err = blks;
/*
* If get block returns with error we simply
@@ -2231,7 +2257,7 @@ static int mpage_da_map_blocks(struct mpage_da_data *mpd)
return 0;
if (err == -ENOSPC &&
ext4_count_free_blocks(mpd->inode->i_sb)) {
ext4_count_free_blocks(sb)) {
mpd->retval = err;
return 0;
}
@@ -2243,16 +2269,17 @@ static int mpage_da_map_blocks(struct mpage_da_data *mpd)
* writepage and writepages will again try to write
* the same.
*/
ext4_msg(mpd->inode->i_sb, KERN_CRIT,
"delayed block allocation failed for inode %lu at "
"logical offset %llu with max blocks %zd with "
"error %d", mpd->inode->i_ino,
(unsigned long long) next,
mpd->b_size >> mpd->inode->i_blkbits, err);
printk(KERN_CRIT "This should not happen!! "
"Data will be lost\n");
if (err == -ENOSPC) {
ext4_print_free_blocks(mpd->inode);
if (!(EXT4_SB(sb)->s_mount_flags & EXT4_MF_FS_ABORTED)) {
ext4_msg(sb, KERN_CRIT,
"delayed block allocation failed for inode %lu "
"at logical offset %llu with max blocks %zd "
"with error %d", mpd->inode->i_ino,
(unsigned long long) next,
mpd->b_size >> mpd->inode->i_blkbits, err);
ext4_msg(sb, KERN_CRIT,
"This should not happen!! Data will be lost\n");
if (err == -ENOSPC)
ext4_print_free_blocks(mpd->inode);
}
/* invalidate all the pages */
ext4_da_block_invalidatepages(mpd, next,
@@ -2320,7 +2347,7 @@ static void mpage_add_bh_to_extent(struct mpage_da_data *mpd,
* XXX Don't go larger than mballoc is willing to allocate
* This is a stopgap solution. We eventually need to fold
* mpage_da_submit_io() into this function and then call
* ext4_get_blocks() multiple times in a loop
* ext4_map_blocks() multiple times in a loop
*/
if (nrblocks >= 8*1024*1024/mpd->inode->i_sb->s_blocksize)
goto flush_it;
@@ -2553,18 +2580,16 @@ static int ext4_da_get_block_prep(struct inode *inode, sector_t iblock,
/*
* This function is used as a standard get_block_t calback function
* when there is no desire to allocate any blocks. It is used as a
* callback function for block_prepare_write(), nobh_writepage(), and
* block_write_full_page(). These functions should only try to map a
* single block at a time.
* callback function for block_prepare_write() and block_write_full_page().
* These functions should only try to map a single block at a time.
*
* Since this function doesn't do block allocations even if the caller
* requests it by passing in create=1, it is critically important that
* any caller checks to make sure that any buffer heads are returned
* by this function are either all already mapped or marked for
* delayed allocation before calling nobh_writepage() or
* block_write_full_page(). Otherwise, b_blocknr could be left
* unitialized, and the page write functions will be taken by
* surprise.
* delayed allocation before calling block_write_full_page(). Otherwise,
* b_blocknr could be left unitialized, and the page write functions will
* be taken by surprise.
*/
static int noalloc_get_block_write(struct inode *inode, sector_t iblock,
struct buffer_head *bh_result, int create)
@@ -2749,9 +2774,7 @@ static int ext4_writepage(struct page *page,
return __ext4_journalled_writepage(page, len);
}
if (test_opt(inode->i_sb, NOBH) && ext4_should_writeback_data(inode))
ret = nobh_writepage(page, noalloc_get_block_write, wbc);
else if (page_bufs && buffer_uninit(page_bufs)) {
if (page_bufs && buffer_uninit(page_bufs)) {
ext4_set_bh_endio(page_bufs, inode);
ret = block_write_full_page_endio(page, noalloc_get_block_write,
wbc, ext4_end_io_buffer_write);
@@ -3146,13 +3169,10 @@ static int ext4_da_write_begin(struct file *file, struct address_space *mapping,
int ret, retries = 0;
struct page *page;
pgoff_t index;
unsigned from, to;
struct inode *inode = mapping->host;
handle_t *handle;
index = pos >> PAGE_CACHE_SHIFT;
from = pos & (PAGE_CACHE_SIZE - 1);
to = from + len;
if (ext4_nonda_switch(inode->i_sb)) {
*fsdata = (void *)FALL_BACK_TO_NONDELALLOC;
@@ -3668,6 +3688,8 @@ static int ext4_end_io_nolock(ext4_io_end_t *io)
return ret;
}
if (io->iocb)
aio_complete(io->iocb, io->result, 0);
/* clear the DIO AIO unwritten flag */
io->flag = 0;
return ret;
@@ -3767,6 +3789,8 @@ static ext4_io_end_t *ext4_init_io_end (struct inode *inode, gfp_t flags)
io->offset = 0;
io->size = 0;
io->page = NULL;
io->iocb = NULL;
io->result = 0;
INIT_WORK(&io->work, ext4_end_io_work);
INIT_LIST_HEAD(&io->list);
}
@@ -3796,12 +3820,18 @@ static void ext4_end_io_dio(struct kiocb *iocb, loff_t offset,
if (io_end->flag != EXT4_IO_UNWRITTEN){
ext4_free_io_end(io_end);
iocb->private = NULL;
goto out;
out:
if (is_async)
aio_complete(iocb, ret, 0);
return;
}
io_end->offset = offset;
io_end->size = size;
io_end->flag = EXT4_IO_UNWRITTEN;
if (is_async) {
io_end->iocb = iocb;
io_end->result = ret;
}
wq = EXT4_SB(io_end->inode->i_sb)->dio_unwritten_wq;
/* queue the work to convert unwritten extents to written */
@@ -3813,9 +3843,6 @@ static void ext4_end_io_dio(struct kiocb *iocb, loff_t offset,
list_add_tail(&io_end->list, &ei->i_completed_io_list);
spin_unlock_irqrestore(&ei->i_completed_io_lock, flags);
iocb->private = NULL;
out:
if (is_async)
aio_complete(iocb, ret, 0);
}
static void ext4_end_io_buffer_write(struct buffer_head *bh, int uptodate)
@@ -3941,7 +3968,7 @@ static ssize_t ext4_ext_direct_IO(int rw, struct kiocb *iocb,
return -ENOMEM;
/*
* we save the io structure for current async
* direct IO, so that later ext4_get_blocks()
* direct IO, so that later ext4_map_blocks()
* could flag the io structure whether there
* is a unwritten extents needs to be converted
* when IO is completed.
@@ -4132,17 +4159,6 @@ int ext4_block_truncate_page(handle_t *handle,
length = blocksize - (offset & (blocksize - 1));
iblock = index << (PAGE_CACHE_SHIFT - inode->i_sb->s_blocksize_bits);
/*
* For "nobh" option, we can only work if we don't need to
* read-in the page - otherwise we create buffers to do the IO.
*/
if (!page_has_buffers(page) && test_opt(inode->i_sb, NOBH) &&
ext4_should_writeback_data(inode) && PageUptodate(page)) {
zero_user(page, offset, length);
set_page_dirty(page);
goto unlock;
}
if (!page_has_buffers(page))
create_empty_buffers(page, blocksize, 0);
@@ -4492,9 +4508,8 @@ static void ext4_free_branches(handle_t *handle, struct inode *inode,
* (should be rare).
*/
if (!bh) {
EXT4_ERROR_INODE(inode,
"Read failure block=%llu",
(unsigned long long) nr);
EXT4_ERROR_INODE_BLOCK(inode, nr,
"Read failure");
continue;
}
@@ -4505,27 +4520,6 @@ static void ext4_free_branches(handle_t *handle, struct inode *inode,
(__le32 *) bh->b_data + addr_per_block,
depth);
/*
* We've probably journalled the indirect block several
* times during the truncate. But it's no longer
* needed and we now drop it from the transaction via
* jbd2_journal_revoke().
*
* That's easy if it's exclusively part of this
* transaction. But if it's part of the committing
* transaction then jbd2_journal_forget() will simply
* brelse() it. That means that if the underlying
* block is reallocated in ext4_get_block(),
* unmap_underlying_metadata() will find this block
* and will try to get rid of it. damn, damn.
*
* If this block has already been committed to the
* journal, a revoke record will be written. And
* revoke records must be emitted *before* clearing
* this block's bit in the bitmaps.
*/
ext4_forget(handle, 1, inode, bh, bh->b_blocknr);
/*
* Everything below this this pointer has been
* released. Now let this top-of-subtree go.
@@ -4550,8 +4544,20 @@ static void ext4_free_branches(handle_t *handle, struct inode *inode,
blocks_for_truncate(inode));
}
/*
* The forget flag here is critical because if
* we are journaling (and not doing data
* journaling), we have to make sure a revoke
* record is written to prevent the journal
* replay from overwriting the (former)
* indirect block if it gets reallocated as a
* data block. This must happen in the same
* transaction where the data blocks are
* actually freed.
*/
ext4_free_blocks(handle, inode, 0, nr, 1,
EXT4_FREE_BLOCKS_METADATA);
EXT4_FREE_BLOCKS_METADATA|
EXT4_FREE_BLOCKS_FORGET);
if (parent_bh) {
/*
@@ -4809,8 +4815,8 @@ static int __ext4_get_inode_loc(struct inode *inode,
bh = sb_getblk(sb, block);
if (!bh) {
EXT4_ERROR_INODE(inode, "unable to read inode block - "
"block %llu", block);
EXT4_ERROR_INODE_BLOCK(inode, block,
"unable to read itable block");
return -EIO;
}
if (!buffer_uptodate(bh)) {
@@ -4908,8 +4914,8 @@ make_io:
submit_bh(READ_META, bh);
wait_on_buffer(bh);
if (!buffer_uptodate(bh)) {
EXT4_ERROR_INODE(inode, "unable to read inode "
"block %llu", block);
EXT4_ERROR_INODE_BLOCK(inode, block,
"unable to read itable block");
brelse(bh);
return -EIO;
}
@@ -4980,7 +4986,7 @@ static blkcnt_t ext4_inode_blocks(struct ext4_inode *raw_inode,
/* we are using combined 48 bit field */
i_blocks = ((u64)le16_to_cpu(raw_inode->i_blocks_high)) << 32 |
le32_to_cpu(raw_inode->i_blocks_lo);
if (ei->i_flags & EXT4_HUGE_FILE_FL) {
if (ext4_test_inode_flag(inode, EXT4_INODE_HUGE_FILE)) {
/* i_blocks represent file system block size */
return i_blocks << (inode->i_blkbits - 9);
} else {
@@ -5076,7 +5082,7 @@ struct inode *ext4_iget(struct super_block *sb, unsigned long ino)
transaction_t *transaction;
tid_t tid;
spin_lock(&journal->j_state_lock);
read_lock(&journal->j_state_lock);
if (journal->j_running_transaction)
transaction = journal->j_running_transaction;
else
@@ -5085,7 +5091,7 @@ struct inode *ext4_iget(struct super_block *sb, unsigned long ino)
tid = transaction->t_tid;
else
tid = journal->j_commit_sequence;
spin_unlock(&journal->j_state_lock);
read_unlock(&journal->j_state_lock);
ei->i_sync_tid = tid;
ei->i_datasync_tid = tid;
}
@@ -5130,7 +5136,7 @@ struct inode *ext4_iget(struct super_block *sb, unsigned long ino)
ei->i_file_acl);
ret = -EIO;
goto bad_inode;
} else if (ei->i_flags & EXT4_EXTENTS_FL) {
} else if (ext4_test_inode_flag(inode, EXT4_INODE_EXTENTS)) {
if (S_ISREG(inode->i_mode) || S_ISDIR(inode->i_mode) ||
(S_ISLNK(inode->i_mode) &&
!ext4_inode_is_fast_symlink(inode)))
@@ -5410,9 +5416,8 @@ int ext4_write_inode(struct inode *inode, struct writeback_control *wbc)
if (wbc->sync_mode == WB_SYNC_ALL)
sync_dirty_buffer(iloc.bh);
if (buffer_req(iloc.bh) && !buffer_uptodate(iloc.bh)) {
EXT4_ERROR_INODE(inode,
"IO error syncing inode (block=%llu)",
(unsigned long long) iloc.bh->b_blocknr);
EXT4_ERROR_INODE_BLOCK(inode, iloc.bh->b_blocknr,
"IO error syncing inode");
err = -EIO;
}
brelse(iloc.bh);
@@ -5487,10 +5492,8 @@ int ext4_setattr(struct dentry *dentry, struct iattr *attr)
if (!(ext4_test_inode_flag(inode, EXT4_INODE_EXTENTS))) {
struct ext4_sb_info *sbi = EXT4_SB(inode->i_sb);
if (attr->ia_size > sbi->s_bitmap_maxbytes) {
error = -EFBIG;
goto err_out;
}
if (attr->ia_size > sbi->s_bitmap_maxbytes)
return -EFBIG;
}
}
@@ -5692,7 +5695,7 @@ int ext4_writepage_trans_blocks(struct inode *inode)
* Calculate the journal credits for a chunk of data modification.
*
* This is called from DIO, fallocate or whoever calling
* ext4_get_blocks() to map/allocate a chunk of contiguous disk blocks.
* ext4_map_blocks() to map/allocate a chunk of contiguous disk blocks.
*
* journal buffers for data blocks are not included here, as DIO
* and fallocate do no need to journal data buffers.
@@ -5758,7 +5761,6 @@ static int ext4_expand_extra_isize(struct inode *inode,
{
struct ext4_inode *raw_inode;
struct ext4_xattr_ibody_header *header;
struct ext4_xattr_entry *entry;
if (EXT4_I(inode)->i_extra_isize >= new_extra_isize)
return 0;
@@ -5766,7 +5768,6 @@ static int ext4_expand_extra_isize(struct inode *inode,
raw_inode = ext4_raw_inode(&iloc);
header = IHDR(inode, raw_inode);
entry = IFIRST(header);
/* No extended attributes present */
if (!ext4_test_inode_state(inode, EXT4_STATE_XATTR) ||
fs/ext4/mballoc.c
+76 -77
View File
@@ -446,10 +446,11 @@ static void mb_free_blocks_double(struct inode *inode, struct ext4_buddy *e4b,
blocknr = ext4_group_first_block_no(sb, e4b->bd_group);
blocknr += first + i;
ext4_grp_locked_error(sb, e4b->bd_group,
__func__, "double-free of inode"
" %lu's block %llu(bit %u in group %u)",
inode ? inode->i_ino : 0, blocknr,
first + i, e4b->bd_group);
inode ? inode->i_ino : 0,
blocknr,
"freeing block already freed "
"(bit %u)",
first + i);
}
mb_clear_bit(first + i, e4b->bd_info->bb_bitmap);
}
@@ -712,9 +713,9 @@ void ext4_mb_generate_buddy(struct super_block *sb,
grp->bb_fragments = fragments;
if (free != grp->bb_free) {
ext4_grp_locked_error(sb, group, __func__,
"EXT4-fs: group %u: %u blocks in bitmap, %u in gd",
group, free, grp->bb_free);
ext4_grp_locked_error(sb, group, 0, 0,
"%u blocks in bitmap, %u in gd",
free, grp->bb_free);
/*
* If we intent to continue, we consider group descritor
* corrupt and update bb_free using bitmap value
@@ -1296,10 +1297,10 @@ static void mb_free_blocks(struct inode *inode, struct ext4_buddy *e4b,
blocknr = ext4_group_first_block_no(sb, e4b->bd_group);
blocknr += block;
ext4_grp_locked_error(sb, e4b->bd_group,
__func__, "double-free of inode"
" %lu's block %llu(bit %u in group %u)",
inode ? inode->i_ino : 0, blocknr, block,
e4b->bd_group);
inode ? inode->i_ino : 0,
blocknr,
"freeing already freed block "
"(bit %u)", block);
}
mb_clear_bit(block, EXT4_MB_BITMAP(e4b));
e4b->bd_info->bb_counters[order]++;
@@ -1788,8 +1789,8 @@ void ext4_mb_complex_scan_group(struct ext4_allocation_context *ac,
* free blocks even though group info says we
* we have free blocks
*/
ext4_grp_locked_error(sb, e4b->bd_group,
__func__, "%d free blocks as per "
ext4_grp_locked_error(sb, e4b->bd_group, 0, 0,
"%d free blocks as per "
"group info. But bitmap says 0",
free);
break;
@@ -1798,8 +1799,8 @@ void ext4_mb_complex_scan_group(struct ext4_allocation_context *ac,
mb_find_extent(e4b, 0, i, ac->ac_g_ex.fe_len, &ex);
BUG_ON(ex.fe_len <= 0);
if (free < ex.fe_len) {
ext4_grp_locked_error(sb, e4b->bd_group,
__func__, "%d free blocks as per "
ext4_grp_locked_error(sb, e4b->bd_group, 0, 0,
"%d free blocks as per "
"group info. But got %d blocks",
free, ex.fe_len);
/*
@@ -1821,8 +1822,7 @@ void ext4_mb_complex_scan_group(struct ext4_allocation_context *ac,
/*
* This is a special case for storages like raid5
* we try to find stripe-aligned chunks for stripe-size requests
* XXX should do so at least for multiples of stripe size as well
* we try to find stripe-aligned chunks for stripe-size-multiple requests
*/
static noinline_for_stack
void ext4_mb_scan_aligned(struct ext4_allocation_context *ac,
@@ -1999,7 +1999,6 @@ ext4_mb_regular_allocator(struct ext4_allocation_context *ac)
ext4_group_t ngroups, group, i;
int cr;
int err = 0;
int bsbits;
struct ext4_sb_info *sbi;
struct super_block *sb;
struct ext4_buddy e4b;
@@ -2041,8 +2040,6 @@ ext4_mb_regular_allocator(struct ext4_allocation_context *ac)
ac->ac_2order = i - 1;
}
bsbits = ac->ac_sb->s_blocksize_bits;
/* if stream allocation is enabled, use global goal */
if (ac->ac_flags & EXT4_MB_STREAM_ALLOC) {
/* TBD: may be hot point */
@@ -2094,8 +2091,8 @@ repeat:
ac->ac_groups_scanned++;
if (cr == 0)
ext4_mb_simple_scan_group(ac, &e4b);
else if (cr == 1 &&
ac->ac_g_ex.fe_len == sbi->s_stripe)
else if (cr == 1 && sbi->s_stripe &&
!(ac->ac_g_ex.fe_len % sbi->s_stripe))
ext4_mb_scan_aligned(ac, &e4b);
else
ext4_mb_complex_scan_group(ac, &e4b);
@@ -2221,7 +2218,7 @@ static int ext4_mb_seq_groups_open(struct inode *inode, struct file *file)
rc = seq_open(file, &ext4_mb_seq_groups_ops);
if (rc == 0) {
struct seq_file *m = (struct seq_file *)file->private_data;
struct seq_file *m = file->private_data;
m->private = sb;
}
return rc;
@@ -2560,6 +2557,22 @@ int ext4_mb_release(struct super_block *sb)
return 0;
}
static inline void ext4_issue_discard(struct super_block *sb,
ext4_group_t block_group, ext4_grpblk_t block, int count)
{
int ret;
ext4_fsblk_t discard_block;
discard_block = block + ext4_group_first_block_no(sb, block_group);
trace_ext4_discard_blocks(sb,
(unsigned long long) discard_block, count);
ret = sb_issue_discard(sb, discard_block, count);
if (ret == EOPNOTSUPP) {
ext4_warning(sb, "discard not supported, disabling");
clear_opt(EXT4_SB(sb)->s_mount_opt, DISCARD);
}
}
/*
* This function is called by the jbd2 layer once the commit has finished,
* so we know we can free the blocks that were released with that commit.
@@ -2579,22 +2592,9 @@ static void release_blocks_on_commit(journal_t *journal, transaction_t *txn)
mb_debug(1, "gonna free %u blocks in group %u (0x%p):",
entry->count, entry->group, entry);
if (test_opt(sb, DISCARD)) {
int ret;
ext4_fsblk_t discard_block;
discard_block = entry->start_blk +
ext4_group_first_block_no(sb, entry->group);
trace_ext4_discard_blocks(sb,
(unsigned long long)discard_block,
entry->count);
ret = sb_issue_discard(sb, discard_block, entry->count);
if (ret == EOPNOTSUPP) {
ext4_warning(sb,
"discard not supported, disabling");
clear_opt(EXT4_SB(sb)->s_mount_opt, DISCARD);
}
}
if (test_opt(sb, DISCARD))
ext4_issue_discard(sb, entry->group,
entry->start_blk, entry->count);
err = ext4_mb_load_buddy(sb, entry->group, &e4b);
/* we expect to find existing buddy because it's pinned */
@@ -2712,7 +2712,6 @@ ext4_mb_mark_diskspace_used(struct ext4_allocation_context *ac,
handle_t *handle, unsigned int reserv_blks)
{
struct buffer_head *bitmap_bh = NULL;
struct ext4_super_block *es;
struct ext4_group_desc *gdp;
struct buffer_head *gdp_bh;
struct ext4_sb_info *sbi;
@@ -2725,8 +2724,6 @@ ext4_mb_mark_diskspace_used(struct ext4_allocation_context *ac,
sb = ac->ac_sb;
sbi = EXT4_SB(sb);
es = sbi->s_es;
err = -EIO;
bitmap_bh = ext4_read_block_bitmap(sb, ac->ac_b_ex.fe_group);
@@ -2812,7 +2809,7 @@ ext4_mb_mark_diskspace_used(struct ext4_allocation_context *ac,
err = ext4_handle_dirty_metadata(handle, NULL, gdp_bh);
out_err:
sb->s_dirt = 1;
ext4_mark_super_dirty(sb);
brelse(bitmap_bh);
return err;
}
@@ -2850,7 +2847,7 @@ ext4_mb_normalize_request(struct ext4_allocation_context *ac,
int bsbits, max;
ext4_lblk_t end;
loff_t size, orig_size, start_off;
ext4_lblk_t start, orig_start;
ext4_lblk_t start;
struct ext4_inode_info *ei = EXT4_I(ac->ac_inode);
struct ext4_prealloc_space *pa;
@@ -2881,6 +2878,7 @@ ext4_mb_normalize_request(struct ext4_allocation_context *ac,
size = size << bsbits;
if (size < i_size_read(ac->ac_inode))
size = i_size_read(ac->ac_inode);
orig_size = size;
/* max size of free chunks */
max = 2 << bsbits;
@@ -2922,8 +2920,8 @@ ext4_mb_normalize_request(struct ext4_allocation_context *ac,
start_off = (loff_t)ac->ac_o_ex.fe_logical << bsbits;
size = ac->ac_o_ex.fe_len << bsbits;
}
orig_size = size = size >> bsbits;
orig_start = start = start_off >> bsbits;
size = size >> bsbits;
start = start_off >> bsbits;
/* don't cover already allocated blocks in selected range */
if (ar->pleft && start <= ar->lleft) {
@@ -3547,7 +3545,6 @@ ext4_mb_release_inode_pa(struct ext4_buddy *e4b, struct buffer_head *bitmap_bh,
ext4_group_t group;
ext4_grpblk_t bit;
unsigned long long grp_blk_start;
sector_t start;
int err = 0;
int free = 0;
@@ -3567,10 +3564,9 @@ ext4_mb_release_inode_pa(struct ext4_buddy *e4b, struct buffer_head *bitmap_bh,
if (bit >= end)
break;
next = mb_find_next_bit(bitmap_bh->b_data, end, bit);
start = ext4_group_first_block_no(sb, group) + bit;
mb_debug(1, " free preallocated %u/%u in group %u\n",
(unsigned) start, (unsigned) next - bit,
(unsigned) group);
(unsigned) ext4_group_first_block_no(sb, group) + bit,
(unsigned) next - bit, (unsigned) group);
free += next - bit;
if (ac) {
@@ -3581,7 +3577,7 @@ ext4_mb_release_inode_pa(struct ext4_buddy *e4b, struct buffer_head *bitmap_bh,
trace_ext4_mballoc_discard(ac);
}
trace_ext4_mb_release_inode_pa(ac, pa, grp_blk_start + bit,
trace_ext4_mb_release_inode_pa(sb, ac, pa, grp_blk_start + bit,
next - bit);
mb_free_blocks(pa->pa_inode, e4b, bit, next - bit);
bit = next + 1;
@@ -3591,8 +3587,7 @@ ext4_mb_release_inode_pa(struct ext4_buddy *e4b, struct buffer_head *bitmap_bh,
pa, (unsigned long) pa->pa_lstart,
(unsigned long) pa->pa_pstart,
(unsigned long) pa->pa_len);
ext4_grp_locked_error(sb, group,
__func__, "free %u, pa_free %u",
ext4_grp_locked_error(sb, group, 0, 0, "free %u, pa_free %u",
free, pa->pa_free);
/*
* pa is already deleted so we use the value obtained
@@ -3613,7 +3608,7 @@ ext4_mb_release_group_pa(struct ext4_buddy *e4b,
ext4_group_t group;
ext4_grpblk_t bit;
trace_ext4_mb_release_group_pa(ac, pa);
trace_ext4_mb_release_group_pa(sb, ac, pa);
BUG_ON(pa->pa_deleted == 0);
ext4_get_group_no_and_offset(sb, pa->pa_pstart, &group, &bit);
BUG_ON(group != e4b->bd_group && pa->pa_len != 0);
@@ -3889,6 +3884,9 @@ static void ext4_mb_show_ac(struct ext4_allocation_context *ac)
struct super_block *sb = ac->ac_sb;
ext4_group_t ngroups, i;
if (EXT4_SB(sb)->s_mount_flags & EXT4_MF_FS_ABORTED)
return;
printk(KERN_ERR "EXT4-fs: Can't allocate:"
" Allocation context details:\n");
printk(KERN_ERR "EXT4-fs: status %d flags %d\n",
@@ -4255,7 +4253,7 @@ static int ext4_mb_discard_preallocations(struct super_block *sb, int needed)
* to usual allocation
*/
ext4_fsblk_t ext4_mb_new_blocks(handle_t *handle,
struct ext4_allocation_request *ar, int *errp)
struct ext4_allocation_request *ar, int *errp)
{
int freed;
struct ext4_allocation_context *ac = NULL;
@@ -4299,7 +4297,7 @@ ext4_fsblk_t ext4_mb_new_blocks(handle_t *handle,
inquota = ar->len;
if (ar->len == 0) {
*errp = -EDQUOT;
goto out3;
goto out;
}
}
@@ -4307,13 +4305,13 @@ ext4_fsblk_t ext4_mb_new_blocks(handle_t *handle,
if (!ac) {
ar->len = 0;
*errp = -ENOMEM;
goto out1;
goto out;
}
*errp = ext4_mb_initialize_context(ac, ar);
if (*errp) {
ar->len = 0;
goto out2;
goto out;
}
ac->ac_op = EXT4_MB_HISTORY_PREALLOC;
@@ -4322,7 +4320,9 @@ ext4_fsblk_t ext4_mb_new_blocks(handle_t *handle,
ext4_mb_normalize_request(ac, ar);
repeat:
/* allocate space in core */
ext4_mb_regular_allocator(ac);
*errp = ext4_mb_regular_allocator(ac);
if (*errp)
goto errout;
/* as we've just preallocated more space than
* user requested orinally, we store allocated
@@ -4333,7 +4333,7 @@ repeat:
}
if (likely(ac->ac_status == AC_STATUS_FOUND)) {
*errp = ext4_mb_mark_diskspace_used(ac, handle, reserv_blks);
if (*errp == -EAGAIN) {
if (*errp == -EAGAIN) {
/*
* drop the reference that we took
* in ext4_mb_use_best_found
@@ -4344,12 +4344,10 @@ repeat:
ac->ac_b_ex.fe_len = 0;
ac->ac_status = AC_STATUS_CONTINUE;
goto repeat;
} else if (*errp) {
} else if (*errp)
errout:
ext4_discard_allocated_blocks(ac);
ac->ac_b_ex.fe_len = 0;
ar->len = 0;
ext4_mb_show_ac(ac);
} else {
else {
block = ext4_grp_offs_to_block(sb, &ac->ac_b_ex);
ar->len = ac->ac_b_ex.fe_len;
}
@@ -4358,19 +4356,19 @@ repeat:
if (freed)
goto repeat;
*errp = -ENOSPC;
}
if (*errp) {
ac->ac_b_ex.fe_len = 0;
ar->len = 0;
ext4_mb_show_ac(ac);
}
ext4_mb_release_context(ac);
out2:
kmem_cache_free(ext4_ac_cachep, ac);
out1:
out:
if (ac)
kmem_cache_free(ext4_ac_cachep, ac);
if (inquota && ar->len < inquota)
dquot_free_block(ar->inode, inquota - ar->len);
out3:
if (!ar->len) {
if (!EXT4_I(ar->inode)->i_delalloc_reserved_flag)
/* release all the reserved blocks if non delalloc */
@@ -4402,6 +4400,7 @@ static noinline_for_stack int
ext4_mb_free_metadata(handle_t *handle, struct ext4_buddy *e4b,
struct ext4_free_data *new_entry)
{
ext4_group_t group = e4b->bd_group;
ext4_grpblk_t block;
struct ext4_free_data *entry;
struct ext4_group_info *db = e4b->bd_info;
@@ -4434,9 +4433,9 @@ ext4_mb_free_metadata(handle_t *handle, struct ext4_buddy *e4b,
else if (block >= (entry->start_blk + entry->count))
n = &(*n)->rb_right;
else {
ext4_grp_locked_error(sb, e4b->bd_group, __func__,
"Double free of blocks %d (%d %d)",
block, entry->start_blk, entry->count);
ext4_grp_locked_error(sb, group, 0,
ext4_group_first_block_no(sb, group) + block,
"Block already on to-be-freed list");
return 0;
}
}
@@ -4494,7 +4493,6 @@ void ext4_free_blocks(handle_t *handle, struct inode *inode,
struct super_block *sb = inode->i_sb;
struct ext4_allocation_context *ac = NULL;
struct ext4_group_desc *gdp;
struct ext4_super_block *es;
unsigned long freed = 0;
unsigned int overflow;
ext4_grpblk_t bit;
@@ -4513,7 +4511,6 @@ void ext4_free_blocks(handle_t *handle, struct inode *inode,
}
sbi = EXT4_SB(sb);
es = EXT4_SB(sb)->s_es;
if (!(flags & EXT4_FREE_BLOCKS_VALIDATED) &&
!ext4_data_block_valid(sbi, block, count)) {
ext4_error(sb, "Freeing blocks not in datazone - "
@@ -4647,6 +4644,8 @@ do_more:
mb_clear_bits(bitmap_bh->b_data, bit, count);
mb_free_blocks(inode, &e4b, bit, count);
ext4_mb_return_to_preallocation(inode, &e4b, block, count);
if (test_opt(sb, DISCARD))
ext4_issue_discard(sb, block_group, bit, count);
}
ret = ext4_free_blks_count(sb, gdp) + count;
@@ -4680,7 +4679,7 @@ do_more:
put_bh(bitmap_bh);
goto do_more;
}
sb->s_dirt = 1;
ext4_mark_super_dirty(sb);
error_return:
if (freed)
dquot_free_block(inode, freed);
fs/ext4/migrate.c
+1 -1
View File
@@ -376,7 +376,7 @@ static int ext4_ext_swap_inode_data(handle_t *handle, struct inode *inode,
* We have the extent map build with the tmp inode.
* Now copy the i_data across
*/
ei->i_flags |= EXT4_EXTENTS_FL;
ext4_test_inode_flag(inode, EXT4_INODE_EXTENTS);
memcpy(ei->i_data, tmp_ei->i_data, sizeof(ei->i_data));
/*
fs/ext4/move_extent.c
+5 -5
View File
@@ -148,17 +148,17 @@ mext_next_extent(struct inode *inode, struct ext4_ext_path *path,
*/
static int
mext_check_null_inode(struct inode *inode1, struct inode *inode2,
const char *function)
const char *function, unsigned int line)
{
int ret = 0;
if (inode1 == NULL) {
__ext4_error(inode2->i_sb, function,
__ext4_error(inode2->i_sb, function, line,
"Both inodes should not be NULL: "
"inode1 NULL inode2 %lu", inode2->i_ino);
ret = -EIO;
} else if (inode2 == NULL) {
__ext4_error(inode1->i_sb, function,
__ext4_error(inode1->i_sb, function, line,
"Both inodes should not be NULL: "
"inode1 %lu inode2 NULL", inode1->i_ino);
ret = -EIO;
@@ -1084,7 +1084,7 @@ mext_inode_double_lock(struct inode *inode1, struct inode *inode2)
BUG_ON(inode1 == NULL && inode2 == NULL);
ret = mext_check_null_inode(inode1, inode2, __func__);
ret = mext_check_null_inode(inode1, inode2, __func__, __LINE__);
if (ret < 0)
goto out;
@@ -1121,7 +1121,7 @@ mext_inode_double_unlock(struct inode *inode1, struct inode *inode2)
BUG_ON(inode1 == NULL && inode2 == NULL);
ret = mext_check_null_inode(inode1, inode2, __func__);
ret = mext_check_null_inode(inode1, inode2, __func__, __LINE__);
if (ret < 0)
goto out;
fs/ext4/namei.c
+6 -34
View File
@@ -179,30 +179,6 @@ static struct buffer_head * ext4_dx_find_entry(struct inode *dir,
static int ext4_dx_add_entry(handle_t *handle, struct dentry *dentry,
struct inode *inode);
unsigned int ext4_rec_len_from_disk(__le16 dlen, unsigned blocksize)
{
unsigned len = le16_to_cpu(dlen);
if (len == EXT4_MAX_REC_LEN || len == 0)
return blocksize;
return (len & 65532) | ((len & 3) << 16);
}
__le16 ext4_rec_len_to_disk(unsigned len, unsigned blocksize)
{
if ((len > blocksize) || (blocksize > (1 << 18)) || (len & 3))
BUG();
if (len < 65536)
return cpu_to_le16(len);
if (len == blocksize) {
if (blocksize == 65536)
return cpu_to_le16(EXT4_MAX_REC_LEN);
else
return cpu_to_le16(0);
}
return cpu_to_le16((len & 65532) | ((len >> 16) & 3));
}
/*
* p is at least 6 bytes before the end of page
*/
@@ -605,7 +581,7 @@ static int htree_dirblock_to_tree(struct file *dir_file,
dir->i_sb->s_blocksize -
EXT4_DIR_REC_LEN(0));
for (; de < top; de = ext4_next_entry(de, dir->i_sb->s_blocksize)) {
if (!ext4_check_dir_entry("htree_dirblock_to_tree", dir, de, bh,
if (!ext4_check_dir_entry(dir, de, bh,
(block<<EXT4_BLOCK_SIZE_BITS(dir->i_sb))
+((char *)de - bh->b_data))) {
/* On error, skip the f_pos to the next block. */
@@ -844,8 +820,7 @@ static inline int search_dirblock(struct buffer_head *bh,
if ((char *) de + namelen <= dlimit &&
ext4_match (namelen, name, de)) {
/* found a match - just to be sure, do a full check */
if (!ext4_check_dir_entry("ext4_find_entry",
dir, de, bh, offset))
if (!ext4_check_dir_entry(dir, de, bh, offset))
return -1;
*res_dir = de;
return 1;
@@ -1019,7 +994,7 @@ static struct buffer_head * ext4_dx_find_entry(struct inode *dir, const struct q
int off = (block << EXT4_BLOCK_SIZE_BITS(sb))
+ ((char *) de - bh->b_data);
if (!ext4_check_dir_entry(__func__, dir, de, bh, off)) {
if (!ext4_check_dir_entry(dir, de, bh, off)) {
brelse(bh);
*err = ERR_BAD_DX_DIR;
goto errout;
@@ -1088,7 +1063,6 @@ static struct dentry *ext4_lookup(struct inode *dir, struct dentry *dentry, stru
struct dentry *ext4_get_parent(struct dentry *child)
{
__u32 ino;
struct inode *inode;
static const struct qstr dotdot = {
.name = "..",
.len = 2,
@@ -1097,7 +1071,6 @@ struct dentry *ext4_get_parent(struct dentry *child)
struct buffer_head *bh;
bh = ext4_find_entry(child->d_inode, &dotdot, &de);
inode = NULL;
if (!bh)
return ERR_PTR(-ENOENT);
ino = le32_to_cpu(de->inode);
@@ -1305,8 +1278,7 @@ static int add_dirent_to_buf(handle_t *handle, struct dentry *dentry,
de = (struct ext4_dir_entry_2 *)bh->b_data;
top = bh->b_data + blocksize - reclen;
while ((char *) de <= top) {
if (!ext4_check_dir_entry("ext4_add_entry", dir, de,
bh, offset))
if (!ext4_check_dir_entry(dir, de, bh, offset))
return -EIO;
if (ext4_match(namelen, name, de))
return -EEXIST;
@@ -1673,7 +1645,7 @@ static int ext4_delete_entry(handle_t *handle,
pde = NULL;
de = (struct ext4_dir_entry_2 *) bh->b_data;
while (i < bh->b_size) {
if (!ext4_check_dir_entry("ext4_delete_entry", dir, de, bh, i))
if (!ext4_check_dir_entry(dir, de, bh, i))
return -EIO;
if (de == de_del) {
BUFFER_TRACE(bh, "get_write_access");
@@ -1956,7 +1928,7 @@ static int empty_dir(struct inode *inode)
}
de = (struct ext4_dir_entry_2 *) bh->b_data;
}
if (!ext4_check_dir_entry("empty_dir", inode, de, bh, offset)) {
if (!ext4_check_dir_entry(inode, de, bh, offset)) {
de = (struct ext4_dir_entry_2 *)(bh->b_data +
sb->s_blocksize);
offset = (offset | (sb->s_blocksize - 1)) + 1;
fs/ext4/resize.c
+2 -6
View File
@@ -921,8 +921,7 @@ int ext4_group_add(struct super_block *sb, struct ext4_new_group_data *input)
&sbi->s_flex_groups[flex_group].free_inodes);
}
ext4_handle_dirty_metadata(handle, NULL, sbi->s_sbh);
sb->s_dirt = 1;
ext4_handle_dirty_super(handle, sb);
exit_journal:
mutex_unlock(&sbi->s_resize_lock);
@@ -953,7 +952,6 @@ int ext4_group_extend(struct super_block *sb, struct ext4_super_block *es,
ext4_fsblk_t n_blocks_count)
{
ext4_fsblk_t o_blocks_count;
ext4_group_t o_groups_count;
ext4_grpblk_t last;
ext4_grpblk_t add;
struct buffer_head *bh;
@@ -965,7 +963,6 @@ int ext4_group_extend(struct super_block *sb, struct ext4_super_block *es,
* yet: we're going to revalidate es->s_blocks_count after
* taking the s_resize_lock below. */
o_blocks_count = ext4_blocks_count(es);
o_groups_count = EXT4_SB(sb)->s_groups_count;
if (test_opt(sb, DEBUG))
printk(KERN_DEBUG "EXT4-fs: extending last group from %llu uto %llu blocks\n",
@@ -1045,13 +1042,12 @@ int ext4_group_extend(struct super_block *sb, struct ext4_super_block *es,
goto exit_put;
}
ext4_blocks_count_set(es, o_blocks_count + add);
ext4_handle_dirty_metadata(handle, NULL, EXT4_SB(sb)->s_sbh);
sb->s_dirt = 1;
mutex_unlock(&EXT4_SB(sb)->s_resize_lock);
ext4_debug("freeing blocks %llu through %llu\n", o_blocks_count,
o_blocks_count + add);
/* We add the blocks to the bitmap and set the group need init bit */
ext4_add_groupblocks(handle, sb, o_blocks_count, add);
ext4_handle_dirty_super(handle, sb);
ext4_debug("freed blocks %llu through %llu\n", o_blocks_count,
o_blocks_count + add);
if ((err = ext4_journal_stop(handle)))
fs/ext4/super.c
+236 -98
View File
File diff suppressed because it is too large Load Diff
fs/ext4/xattr.c
+1 -2
View File
@@ -458,8 +458,7 @@ static void ext4_xattr_update_super_block(handle_t *handle,
if (ext4_journal_get_write_access(handle, EXT4_SB(sb)->s_sbh) == 0) {
EXT4_SET_COMPAT_FEATURE(sb, EXT4_FEATURE_COMPAT_EXT_ATTR);
sb->s_dirt = 1;
ext4_handle_dirty_metadata(handle, NULL, EXT4_SB(sb)->s_sbh);
ext4_handle_dirty_super(handle, sb);
}
}
fs/jbd2/checkpoint.c
+9 -9
View File
@@ -118,13 +118,13 @@ static int __try_to_free_cp_buf(struct journal_head *jh)
void __jbd2_log_wait_for_space(journal_t *journal)
{
int nblocks, space_left;
assert_spin_locked(&journal->j_state_lock);
/* assert_spin_locked(&journal->j_state_lock); */
nblocks = jbd_space_needed(journal);
while (__jbd2_log_space_left(journal) < nblocks) {
if (journal->j_flags & JBD2_ABORT)
return;
spin_unlock(&journal->j_state_lock);
write_unlock(&journal->j_state_lock);
mutex_lock(&journal->j_checkpoint_mutex);
/*
@@ -138,7 +138,7 @@ void __jbd2_log_wait_for_space(journal_t *journal)
* filesystem, so abort the journal and leave a stack
* trace for forensic evidence.
*/
spin_lock(&journal->j_state_lock);
write_lock(&journal->j_state_lock);
spin_lock(&journal->j_list_lock);
nblocks = jbd_space_needed(journal);
space_left = __jbd2_log_space_left(journal);
@@ -149,7 +149,7 @@ void __jbd2_log_wait_for_space(journal_t *journal)
if (journal->j_committing_transaction)
tid = journal->j_committing_transaction->t_tid;
spin_unlock(&journal->j_list_lock);
spin_unlock(&journal->j_state_lock);
write_unlock(&journal->j_state_lock);
if (chkpt) {
jbd2_log_do_checkpoint(journal);
} else if (jbd2_cleanup_journal_tail(journal) == 0) {
@@ -167,7 +167,7 @@ void __jbd2_log_wait_for_space(journal_t *journal)
WARN_ON(1);
jbd2_journal_abort(journal, 0);
}
spin_lock(&journal->j_state_lock);
write_lock(&journal->j_state_lock);
} else {
spin_unlock(&journal->j_list_lock);
}
@@ -474,7 +474,7 @@ int jbd2_cleanup_journal_tail(journal_t *journal)
* next transaction ID we will write, and where it will
* start. */
spin_lock(&journal->j_state_lock);
write_lock(&journal->j_state_lock);
spin_lock(&journal->j_list_lock);
transaction = journal->j_checkpoint_transactions;
if (transaction) {
@@ -496,7 +496,7 @@ int jbd2_cleanup_journal_tail(journal_t *journal)
/* If the oldest pinned transaction is at the tail of the log
already then there's not much we can do right now. */
if (journal->j_tail_sequence == first_tid) {
spin_unlock(&journal->j_state_lock);
write_unlock(&journal->j_state_lock);
return 1;
}
@@ -516,7 +516,7 @@ int jbd2_cleanup_journal_tail(journal_t *journal)
journal->j_free += freed;
journal->j_tail_sequence = first_tid;
journal->j_tail = blocknr;
spin_unlock(&journal->j_state_lock);
write_unlock(&journal->j_state_lock);
/*
* If there is an external journal, we need to make sure that
@@ -775,7 +775,7 @@ void __jbd2_journal_drop_transaction(journal_t *journal, transaction_t *transact
J_ASSERT(transaction->t_log_list == NULL);
J_ASSERT(transaction->t_checkpoint_list == NULL);
J_ASSERT(transaction->t_checkpoint_io_list == NULL);
J_ASSERT(transaction->t_updates == 0);
J_ASSERT(atomic_read(&transaction->t_updates) == 0);
J_ASSERT(journal->j_committing_transaction != transaction);
J_ASSERT(journal->j_running_transaction != transaction);
fs/jbd2/commit.c
+26 -24
View File
@@ -150,11 +150,11 @@ static int journal_submit_commit_record(journal_t *journal,
*/
if (ret == -EOPNOTSUPP && barrier_done) {
printk(KERN_WARNING
"JBD: barrier-based sync failed on %s - "
"disabling barriers\n", journal->j_devname);
spin_lock(&journal->j_state_lock);
"JBD2: Disabling barriers on %s, "
"not supported by device\n", journal->j_devname);
write_lock(&journal->j_state_lock);
journal->j_flags &= ~JBD2_BARRIER;
spin_unlock(&journal->j_state_lock);
write_unlock(&journal->j_state_lock);
/* And try again, without the barrier */
lock_buffer(bh);
@@ -180,11 +180,11 @@ retry:
wait_on_buffer(bh);
if (buffer_eopnotsupp(bh) && (journal->j_flags & JBD2_BARRIER)) {
printk(KERN_WARNING
"JBD2: wait_on_commit_record: sync failed on %s - "
"disabling barriers\n", journal->j_devname);
spin_lock(&journal->j_state_lock);
"JBD2: %s: disabling barries on %s - not supported "
"by device\n", __func__, journal->j_devname);
write_lock(&journal->j_state_lock);
journal->j_flags &= ~JBD2_BARRIER;
spin_unlock(&journal->j_state_lock);
write_unlock(&journal->j_state_lock);
lock_buffer(bh);
clear_buffer_dirty(bh);
@@ -400,7 +400,7 @@ void jbd2_journal_commit_transaction(journal_t *journal)
jbd_debug(1, "JBD: starting commit of transaction %d\n",
commit_transaction->t_tid);
spin_lock(&journal->j_state_lock);
write_lock(&journal->j_state_lock);
commit_transaction->t_state = T_LOCKED;
/*
@@ -417,23 +417,23 @@ void jbd2_journal_commit_transaction(journal_t *journal)
stats.run.rs_locked);
spin_lock(&commit_transaction->t_handle_lock);
while (commit_transaction->t_updates) {
while (atomic_read(&commit_transaction->t_updates)) {
DEFINE_WAIT(wait);
prepare_to_wait(&journal->j_wait_updates, &wait,
TASK_UNINTERRUPTIBLE);
if (commit_transaction->t_updates) {
if (atomic_read(&commit_transaction->t_updates)) {
spin_unlock(&commit_transaction->t_handle_lock);
spin_unlock(&journal->j_state_lock);
write_unlock(&journal->j_state_lock);
schedule();
spin_lock(&journal->j_state_lock);
write_lock(&journal->j_state_lock);
spin_lock(&commit_transaction->t_handle_lock);
}
finish_wait(&journal->j_wait_updates, &wait);
}
spin_unlock(&commit_transaction->t_handle_lock);
J_ASSERT (commit_transaction->t_outstanding_credits <=
J_ASSERT (atomic_read(&commit_transaction->t_outstanding_credits) <=
journal->j_max_transaction_buffers);
/*
@@ -497,7 +497,7 @@ void jbd2_journal_commit_transaction(journal_t *journal)
start_time = ktime_get();
commit_transaction->t_log_start = journal->j_head;
wake_up(&journal->j_wait_transaction_locked);
spin_unlock(&journal->j_state_lock);
write_unlock(&journal->j_state_lock);
jbd_debug (3, "JBD: commit phase 2\n");
@@ -519,19 +519,20 @@ void jbd2_journal_commit_transaction(journal_t *journal)
* transaction! Now comes the tricky part: we need to write out
* metadata. Loop over the transaction's entire buffer list:
*/
spin_lock(&journal->j_state_lock);
write_lock(&journal->j_state_lock);
commit_transaction->t_state = T_COMMIT;
spin_unlock(&journal->j_state_lock);
write_unlock(&journal->j_state_lock);
trace_jbd2_commit_logging(journal, commit_transaction);
stats.run.rs_logging = jiffies;
stats.run.rs_flushing = jbd2_time_diff(stats.run.rs_flushing,
stats.run.rs_logging);
stats.run.rs_blocks = commit_transaction->t_outstanding_credits;
stats.run.rs_blocks =
atomic_read(&commit_transaction->t_outstanding_credits);
stats.run.rs_blocks_logged = 0;
J_ASSERT(commit_transaction->t_nr_buffers <=
commit_transaction->t_outstanding_credits);
atomic_read(&commit_transaction->t_outstanding_credits));
err = 0;
descriptor = NULL;
@@ -616,7 +617,7 @@ void jbd2_journal_commit_transaction(journal_t *journal)
* the free space in the log, but this counter is changed
* by jbd2_journal_next_log_block() also.
*/
commit_transaction->t_outstanding_credits--;
atomic_dec(&commit_transaction->t_outstanding_credits);
/* Bump b_count to prevent truncate from stumbling over
the shadowed buffer! @@@ This can go if we ever get
@@ -977,7 +978,7 @@ restart_loop:
* __jbd2_journal_drop_transaction(). Otherwise we could race with
* other checkpointing code processing the transaction...
*/
spin_lock(&journal->j_state_lock);
write_lock(&journal->j_state_lock);
spin_lock(&journal->j_list_lock);
/*
* Now recheck if some buffers did not get attached to the transaction
@@ -985,7 +986,7 @@ restart_loop:
*/
if (commit_transaction->t_forget) {
spin_unlock(&journal->j_list_lock);
spin_unlock(&journal->j_state_lock);
write_unlock(&journal->j_state_lock);
goto restart_loop;
}
@@ -1003,7 +1004,8 @@ restart_loop:
* File the transaction statistics
*/
stats.ts_tid = commit_transaction->t_tid;
stats.run.rs_handle_count = commit_transaction->t_handle_count;
stats.run.rs_handle_count =
atomic_read(&commit_transaction->t_handle_count);
trace_jbd2_run_stats(journal->j_fs_dev->bd_dev,
commit_transaction->t_tid, &stats.run);
@@ -1037,7 +1039,7 @@ restart_loop:
journal->j_average_commit_time*3) / 4;
else
journal->j_average_commit_time = commit_time;
spin_unlock(&journal->j_state_lock);
write_unlock(&journal->j_state_lock);
if (commit_transaction->t_checkpoint_list == NULL &&
commit_transaction->t_checkpoint_io_list == NULL) {

Some files were not shown because too many files have changed in this diff Show More