diff options
| author |   Dmitry Monakhov <dmonakhov@openvz.org> | 2013-06-12 22:25:07 -0400 |
|---|---|---|
| committer |   Theodore Ts'o <tytso@mit.edu> | 2013-06-12 22:25:07 -0400 |
| commit | 06a407f13daf9e48f0ef7189c7e54082b53940c7 (patch) | |
| tree | 79ce69f348c778ed64877f549c7b81a2a585848e /include/linux/jbd2.h | |
| parent | jbd2: optimize jbd2_journal_force_commit (diff) | |
| download | linux-dev-06a407f13daf9e48f0ef7189c7e54082b53940c7.tar.xz linux-dev-06a407f13daf9e48f0ef7189c7e54082b53940c7.zip | |
ext4: fix data integrity for ext4_sync_fs
Inode's data or non journaled quota may be written w/o jounral so we
_must_ send a barrier at the end of ext4_sync_fs. But it can be
skipped if journal commit will do it for us.
Also fix data integrity for nojournal mode.
Signed-off-by: Dmitry Monakhov <dmonakhov@openvz.org>
Signed-off-by: "Theodore Ts'o" <tytso@mit.edu>
Diffstat (limited to 'include/linux/jbd2.h')
| -rw-r--r-- | include/linux/jbd2.h | 13 |
1 files changed, 13 insertions, 0 deletions
diff --git a/include/linux/jbd2.h b/include/linux/jbd2.h index c3645b9475f1..a79783faecad 100644 --- a/include/linux/jbd2.h +++ b/include/linux/jbd2.h @@ -1374,6 +1374,19 @@ static inline u32 jbd2_chksum(journal_t *journal, u32 crc, return *(u32 *)desc.ctx; } +/* Return most recent uncommitted transaction */ +static inline tid_t jbd2_get_latest_transaction(journal_t *journal) +{ + tid_t tid; + + read_lock(&journal->j_state_lock); + tid = journal->j_commit_request; + if (journal->j_running_transaction) + tid = journal->j_running_transaction->t_tid; + read_unlock(&journal->j_state_lock); + return tid; +} + #ifdef __KERNEL__ #define buffer_trace_init(bh) do {} while (0) |