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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

  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 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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