From: Lachlan McIlroy <lachlan@sgi.com>
To: Peter Leckie <pleckie@sgi.com>
Cc: xfs@oss.sgi.com, xfs-dev@sgi.com
Subject: Re: [PATCH v2] Use atomic_t and wait_event to track dquot pincount
Date: Fri, 26 Sep 2008 11:26:38 +1000 [thread overview]
Message-ID: <48DC3A4E.7010602@sgi.com> (raw)
In-Reply-To: <48DC3638.3050601@sgi.com>
Peter Leckie wrote:
> Dave Chinner wrote:
>> but it doesn't fix the underlying problem that was causing the
>> spurious wakeups, which is the fact that xfs_qm_dqflush() is not
>> obeying non-blocking flush directions. The patch below should fix
>> that. Can you please test it before you add your patch?
>>
> Yeah I already had this idea I just have not posted a patch because
> Lachlan though
> it might introduce a deadlock.
I suggested some changes a while back to make tail pushing non-blocking
and Dave thought it might cause a deadlock.
http://oss.sgi.com/archives/xfs/2008-07/msg00472.html
I actually did hit a deadlock with this change but could not figure out
why. It may have been the same issue Pete is trying to fix here.
> If you think this is a good Idea I will
> update my patch
> to be non blocking.
>
next prev parent reply other threads:[~2008-09-26 1:16 UTC|newest]
Thread overview: 34+ messages / expand[flat|nested] mbox.gz Atom feed top
2008-09-24 4:28 [PATCH] Use atomic_t and wait_event to track dquot pincount Peter Leckie
2008-09-24 6:05 ` Dave Chinner
2008-09-24 6:53 ` Peter Leckie
2008-09-24 7:43 ` Dave Chinner
2008-09-24 7:26 ` [PATCH v2] " Peter Leckie
2008-09-24 7:42 ` Lachlan McIlroy
2008-09-24 7:46 ` Dave Chinner
2008-09-24 8:03 ` Lachlan McIlroy
2008-09-24 14:42 ` Christoph Hellwig
2008-09-24 8:15 ` Peter Leckie
2008-09-25 1:03 ` Dave Chinner
2008-09-25 8:43 ` Peter Leckie
2008-09-25 9:12 ` Christoph Hellwig
2008-09-26 0:34 ` Dave Chinner
2008-09-26 1:09 ` Peter Leckie
2008-09-26 1:26 ` Lachlan McIlroy [this message]
2008-09-27 1:08 ` Dave Chinner
2008-09-26 1:32 ` Lachlan McIlroy
2008-09-26 1:38 ` Peter Leckie
2008-09-26 1:44 ` Mark Goodwin
2008-09-26 1:54 ` Peter Leckie
2008-09-26 11:31 ` Christoph Hellwig
2008-09-26 2:57 ` Dave Chinner
2008-09-26 3:38 ` Lachlan McIlroy
2008-09-27 1:11 ` Dave Chinner
2008-09-26 11:30 ` Christoph Hellwig
2008-09-26 11:27 ` Christoph Hellwig
2008-09-27 1:18 ` Dave Chinner
2008-09-26 1:10 ` Lachlan McIlroy
2008-09-26 11:28 ` Christoph Hellwig
2008-09-29 3:08 ` Lachlan McIlroy
2008-09-29 21:45 ` Christoph Hellwig
2008-09-24 14:41 ` Christoph Hellwig
2008-09-25 1:08 ` Dave Chinner
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