From: Ingo Molnar <mingo@elte.hu>
To: Huang Ying <ying.huang@intel.com>
Cc: Andrew Morton <akpm@linux-foundation.org>, linux-kernel@vger.kernel.org
Subject: Re: [PATH -mm -v2] Fix a race condtion of oops_in_progress
Date: Wed, 29 Oct 2008 09:34:34 +0100 [thread overview]
Message-ID: <20081029083434.GC6364@elte.hu> (raw)
In-Reply-To: <1225268796.24095.48.camel@yhuang-dev.sh.intel.com>
* Huang Ying <ying.huang@intel.com> wrote:
> Fix a race condition accessing oops_in_progress. Which may be
> changed on multiple CPU simultaneously, but it is changed via
> non-atomic operation ++/--. This patch changes the definition of
> oops_in_process from int to atomic_t, and accessing method to atomic
> operations.
>
>
> ChangeLog
>
> v2:
>
> - Includes fixes from Andrew Moton.
>
> - Re-based on Matthew Wilcox's new atomic_t patch.
hm, there are a couple of places now that do atomic_set(,1) - they
should be atomic_inc(), correct?
Ingo
next prev parent reply other threads:[~2008-10-29 8:35 UTC|newest]
Thread overview: 14+ messages / expand[flat|nested] mbox.gz Atom feed top
2008-10-29 8:26 [PATH -mm -v2] Fix a race condtion of oops_in_progress Huang Ying
2008-10-29 8:34 ` Ingo Molnar [this message]
2008-10-29 8:42 ` Huang Ying
2008-10-29 14:51 ` Chris Snook
2008-10-30 2:02 ` Huang Ying
2008-10-31 16:42 ` Chris Snook
2008-11-03 1:52 ` Huang Ying
2008-11-03 18:44 ` Chris Snook
2008-11-04 1:41 ` Huang Ying
2008-11-10 7:35 ` KOSAKI Motohiro
2008-11-10 18:45 ` Chris Snook
2008-11-11 1:05 ` Huang Ying
2008-11-11 1:10 ` Chris Snook
2008-11-11 1:19 ` Huang Ying
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