diff options
Diffstat (limited to 'fs/jbd/commit.c')
| -rw-r--r-- | fs/jbd/commit.c | 9 |
1 files changed, 8 insertions, 1 deletions
diff --git a/fs/jbd/commit.c b/fs/jbd/commit.c index 1b27f46e6108..52c15c776029 100644 --- a/fs/jbd/commit.c +++ b/fs/jbd/commit.c @@ -309,7 +309,14 @@ void journal_commit_transaction(journal_t *journal) if (journal->j_flags & JFS_FLUSHED) { jbd_debug(3, "super block updated\n"); mutex_lock(&journal->j_checkpoint_mutex); - journal_update_sb_log_tail(journal); + /* + * We hold j_checkpoint_mutex so tail cannot change under us. + * We don't need any special data guarantees for writing sb + * since journal is empty and it is ok for write to be + * flushed only with transaction commit. + */ + journal_update_sb_log_tail(journal, journal->j_tail_sequence, + journal->j_tail, WRITE_SYNC); mutex_unlock(&journal->j_checkpoint_mutex); } else { jbd_debug(3, "superblock not updated\n"); |