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From: Theodore Ts'o <tytso@mit.edu>
To: Jan Kara <jack@suse.cz>
Cc: linux-ext4@vger.kernel.org, Eryu Guan <eguan@redhat.com>
Subject: Re: [PATCH 4/4] jbd2: Track more dependencies on transaction commit
Date: Thu, 30 Jun 2016 11:45:04 -0400	[thread overview]
Message-ID: <20160630154504.GF2028@thunk.org> (raw)
In-Reply-To: <1466073736-30447-5-git-send-email-jack@suse.cz>

On Thu, Jun 16, 2016 at 12:42:16PM +0200, Jan Kara wrote:
> 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>

Thanks, applied.

						- Ted

      reply	other threads:[~2016-06-30 15:45 UTC|newest]

Thread overview: 27+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2016-06-16 10:42 [PATCH 0/4] ext4: Fix deadlock during page writeback Jan Kara
2016-06-16 10:42 ` [PATCH 1/4] " Jan Kara
2016-06-30 15:05   ` Theodore Ts'o
2016-07-01  9:09     ` Jan Kara
2016-07-01 16:53       ` Theodore Ts'o
2016-07-01 17:40         ` Jan Kara
2016-07-01 21:26           ` Theodore Ts'o
2016-07-04 14:00             ` Jan Kara
2016-07-04 15:20               ` Theodore Ts'o
2016-07-04 15:47                 ` Jan Kara
2016-07-05  2:43                   ` Theodore Ts'o
2016-07-06  7:04                     ` Jan Kara
2016-07-04 14:14             ` Theodore Ts'o
2016-07-04 15:51               ` Jan Kara
2016-07-05  3:38                 ` Theodore Ts'o
2016-07-06  7:51                   ` Jan Kara
2016-07-06 12:35                     ` Theodore Ts'o
2016-07-06 12:52                       ` Jan Kara
2016-07-06 14:27                         ` Theodore Ts'o
2016-07-06 14:41                           ` Jan Kara
2016-06-16 10:42 ` [PATCH 2/4] jbd2: Move lockdep instrumentation for jbd2 handles Jan Kara
2016-06-30 15:34   ` Theodore Ts'o
2016-06-16 10:42 ` [PATCH 3/4] jbd2: Move lockdep tracking to journal_s Jan Kara
2016-06-16 11:42   ` kbuild test robot
2016-06-30 15:40   ` Theodore Ts'o
2016-06-16 10:42 ` [PATCH 4/4] jbd2: Track more dependencies on transaction commit Jan Kara
2016-06-30 15:45   ` Theodore Ts'o [this message]

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