From 1eaa566d368b214d99cbb973647c1b0b8102a9ae Mon Sep 17 00:00:00 2001 From: Jan Kara Date: Thu, 30 Jun 2016 11:40:54 -0400 Subject: jbd2: track more dependencies on transaction commit So far we were tracking only dependency on transaction commit due to starting a new handle (which may require commit to start a new transaction). Now add tracking also for other cases where we wait for transaction commit. This way lockdep can catch deadlocks e. g. because we call jbd2_journal_stop() for a synchronous handle with some locks held which rank below transaction start. Signed-off-by: Jan Kara Signed-off-by: Theodore Ts'o --- fs/jbd2/journal.c | 1 + 1 file changed, 1 insertion(+) (limited to 'fs/jbd2/journal.c') diff --git a/fs/jbd2/journal.c b/fs/jbd2/journal.c index 208e4058040b..fc1d7a39b082 100644 --- a/fs/jbd2/journal.c +++ b/fs/jbd2/journal.c @@ -691,6 +691,7 @@ int jbd2_log_wait_commit(journal_t *journal, tid_t tid) { int err = 0; + jbd2_might_wait_for_commit(journal); read_lock(&journal->j_state_lock); #ifdef CONFIG_JBD2_DEBUG if (!tid_geq(journal->j_commit_request, tid)) { -- cgit v1.2.3