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| author | Linus Torvalds <torvalds@linux-foundation.org> | 2011-07-26 22:34:40 +0400 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2011-07-26 22:34:40 +0400 |
| commit | 2ac232f37fa0e8551856a575fe299c47b65b4d66 (patch) | |
| tree | 58ff15ecdbc383415a82ea678e5191db16a479f3 /fs/ext3/xattr.c | |
| parent | fa8f53ace4af9470d8414427cb3dc3c0ffc4f182 (diff) | |
| parent | 5cf49d763eb141d236e92be6d4a0dc94e31fa886 (diff) | |
| download | linux-2ac232f37fa0e8551856a575fe299c47b65b4d66.tar.xz | |
Merge branch 'for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jack/linux-fs-2.6
* 'for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jack/linux-fs-2.6:
jbd: change the field "b_cow_tid" of struct journal_head from type unsigned to tid_t
ext3.txt: update the links in the section "useful links" to the latest ones
ext3: Fix data corruption in inodes with journalled data
ext2: check xattr name_len before acquiring xattr_sem in ext2_xattr_get
ext3: Fix compilation with -DDX_DEBUG
quota: Remove unused declaration
jbd: Use WRITE_SYNC in journal checkpoint.
jbd: Fix oops in journal_remove_journal_head()
ext3: Return -EINVAL when start is beyond the end of fs in ext3_trim_fs()
ext3/ioctl.c: silence sparse warnings about different address spaces
ext3/ext4 Documentation: remove bh/nobh since it has been deprecated
ext3: Improve truncate error handling
ext3: use proper little-endian bitops
ext2: include fs.h into ext2_fs.h
ext3: Fix oops in ext3_try_to_allocate_with_rsv()
jbd: fix a bug of leaking jh->b_jcount
jbd: remove dependency on __GFP_NOFAIL
ext3: Convert ext3 to new truncate calling convention
jbd: Add fixed tracepoints
ext3: Add fixed tracepoints
Resolve conflicts in fs/ext3/fsync.c due to fsync locking push-down and
new fixed tracepoints.
Diffstat (limited to 'fs/ext3/xattr.c')
| -rw-r--r-- | fs/ext3/xattr.c | 12 |
1 files changed, 10 insertions, 2 deletions
diff --git a/fs/ext3/xattr.c b/fs/ext3/xattr.c index 32e6cc23bd9a..d565759d82ee 100644 --- a/fs/ext3/xattr.c +++ b/fs/ext3/xattr.c @@ -803,8 +803,16 @@ inserted: /* We need to allocate a new block */ ext3_fsblk_t goal = ext3_group_first_block_no(sb, EXT3_I(inode)->i_block_group); - ext3_fsblk_t block = ext3_new_block(handle, inode, - goal, &error); + ext3_fsblk_t block; + + /* + * Protect us agaist concurrent allocations to the + * same inode from ext3_..._writepage(). Reservation + * code does not expect racing allocations. + */ + mutex_lock(&EXT3_I(inode)->truncate_mutex); + block = ext3_new_block(handle, inode, goal, &error); + mutex_unlock(&EXT3_I(inode)->truncate_mutex); if (error) goto cleanup; ea_idebug(inode, "creating block %d", block); |