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| author | Jan Kara <jack@suse.cz> | 2016-06-30 11:40:54 -0400 |
|---|---|---|
| committer | Theodore Ts'o <tytso@mit.edu> | 2016-06-30 11:40:54 -0400 |
| commit | 1eaa566d368b214d99cbb973647c1b0b8102a9ae (patch) | |
| tree | 30f6f17f9dbc22a3ca6ff014c1c38a69f645c00d /fs/jbd2/journal.c | |
| parent | ab714aff4f744f52f0beae93ed441f2f5585eb7a (diff) | |
| download | linux-1eaa566d368b214d99cbb973647c1b0b8102a9ae.tar.bz2 | |
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.c | 1 |
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)) { |