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authorJan Kara <jack@suse.cz>2016-06-30 11:40:54 -0400
committerTheodore Ts'o <tytso@mit.edu>2016-06-30 11:40:54 -0400
commit1eaa566d368b214d99cbb973647c1b0b8102a9ae (patch)
tree30f6f17f9dbc22a3ca6ff014c1c38a69f645c00d /fs/jbd2/journal.c
parentab714aff4f744f52f0beae93ed441f2f5585eb7a (diff)
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 <jack@suse.cz> Signed-off-by: Theodore Ts'o <tytso@mit.edu>
Diffstat (limited to 'fs/jbd2/journal.c')
-rw-r--r--fs/jbd2/journal.c1
1 files changed, 1 insertions, 0 deletions
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)) {