diff options
| author | Jan Kara <jack@suse.cz> | 2017-05-29 13:24:55 -0400 |
|---|---|---|
| committer | Theodore Ts'o <tytso@mit.edu> | 2017-05-29 13:24:55 -0400 |
| commit | 67a7d5f561f469ad2fa5154d2888258ab8e6df7c (patch) | |
| tree | aa5b273ba62c4a0301dae73d13978a5e8217e16c /fs/ext4/inode.c | |
| parent | a056bdaae7a181f7dcc876cfab2f94538e508709 (diff) | |
ext4: fix fdatasync(2) after extent manipulation operations
Currently, extent manipulation operations such as hole punch, range
zeroing, or extent shifting do not record the fact that file data has
changed and thus fdatasync(2) has a work to do. As a result if we crash
e.g. after a punch hole and fdatasync, user can still possibly see the
punched out data after journal replay. Test generic/392 fails due to
these problems.
Fix the problem by properly marking that file data has changed in these
operations.
CC: stable@vger.kernel.org
Fixes: a4bb6b64e39abc0e41ca077725f2a72c868e7622
Signed-off-by: Jan Kara <jack@suse.cz>
Signed-off-by: Theodore Ts'o <tytso@mit.edu>
Diffstat (limited to 'fs/ext4/inode.c')
| -rw-r--r-- | fs/ext4/inode.c | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/fs/ext4/inode.c b/fs/ext4/inode.c index 657a98fa80b6..5cf82d03968c 100644 --- a/fs/ext4/inode.c +++ b/fs/ext4/inode.c @@ -4218,6 +4218,8 @@ int ext4_punch_hole(struct inode *inode, loff_t offset, loff_t length) inode->i_mtime = inode->i_ctime = current_time(inode); ext4_mark_inode_dirty(handle, inode); + if (ret >= 0) + ext4_update_inode_fsync_trans(handle, inode, 1); out_stop: ext4_journal_stop(handle); out_dio: |