jbd commit: fix transaction dropping

We have to check that also the second checkpoint list is non-empty before
dropping the transaction.

Signed-off-by: Jan Kara <jack@suse.cz>
Cc: Chuck Ebbert <cebbert@redhat.com>
Cc: Kirill Korotaev <dev@openvz.org>
Cc: <linux-ext4@vger.kernel.org>
Cc: <stable@kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

diff --git a/fs/jbd/commit.c b/fs/jbd/commit.c
index 1facfaf..a003d50 100644 (file)
--- a/fs/jbd/commit.c
+++ b/fs/jbd/commit.c
@@ -887,7 +887,8 @@ restart_loop:
        journal->j_committing_transaction = NULL;
        spin_unlock(&journal->j_state_lock);
 
-       if (commit_transaction->t_checkpoint_list == NULL) {
+       if (commit_transaction->t_checkpoint_list == NULL &&
+           commit_transaction->t_checkpoint_io_list == NULL) {
                __journal_drop_transaction(journal, commit_transaction);
        } else {
                if (journal->j_checkpoint_transactions == NULL) {