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
prev parent 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]
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=20160630154504.GF2028@thunk.org \
--to=tytso@mit.edu \
--cc=eguan@redhat.com \
--cc=jack@suse.cz \
--cc=linux-ext4@vger.kernel.org \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for NNTP newsgroup(s).