jbd2: don't start fast commit on aborted journal

Fast commit should not be started if the journal is aborted.

Signed-off-by: Harshad Shirwadkar<harshadshirwadkar@gmail.com>
Link: https://lore.kernel.org/r/20201106035911.1942128-22-harshadshirwadkar@gmail.comSigned-off-by: NTheodore Ts'o <tytso@mit.edu>

fs/jbd2/journal.c

@@ -727,6 +727,8 @@ int jbd2_log_wait_commit(journal_t *journal, tid_t tid)
  */
 int jbd2_fc_begin_commit(journal_t *journal, tid_t tid)
 {
+	if (unlikely(is_journal_aborted(journal)))
+		return -EIO;
 	/*
 	 * Fast commits only allowed if at least one full commit has
 	 * been processed.