diff options
| -rw-r--r-- | fs/jbd/journal.c | 11 |
1 files changed, 11 insertions, 0 deletions
diff --git a/fs/jbd/journal.c b/fs/jbd/journal.c index 81cc7eaff86..81880c6d6b5 100644 --- a/fs/jbd/journal.c +++ b/fs/jbd/journal.c @@ -564,6 +564,16 @@ int log_wait_commit(journal_t *journal, tid_t tid) spin_unlock(&journal->j_state_lock); #endif spin_lock(&journal->j_state_lock); + /* + * Not running or committing trans? Must be already committed. This + * saves us from waiting for a *long* time when tid overflows. + */ + if (!((journal->j_running_transaction && + journal->j_running_transaction->t_tid == tid) || + (journal->j_committing_transaction && + journal->j_committing_transaction->t_tid == tid))) + goto out_unlock; + if (!tid_geq(journal->j_commit_waited, tid)) journal->j_commit_waited = tid; while (tid_gt(tid, journal->j_commit_sequence)) { @@ -575,6 +585,7 @@ int log_wait_commit(journal_t *journal, tid_t tid) !tid_gt(tid, journal->j_commit_sequence)); spin_lock(&journal->j_state_lock); } +out_unlock: spin_unlock(&journal->j_state_lock); if (unlikely(is_journal_aborted(journal))) { |