From: Andi Kleen <andi@firstfloor.org>
To: travis@sgi.com
Cc: Andrew Morton <akpm@linux-foundation.org>,
Andi Kleen <ak@suse.de>, Christoph Lameter <clameter@sgi.com>,
pageexec@freemail.hu, linux-mm@kvack.org,
linux-kernel@vger.kernel.org
Subject: Re: [PATCH 1/1] mm: Prevent dereferencing non-allocated per_cpu variables
Date: Tue, 27 Nov 2007 23:16:28 +0100 [thread overview]
Message-ID: <20071127221628.GG24223@one.firstfloor.org> (raw)
In-Reply-To: <20071127215054.660250000@sgi.com>
On Tue, Nov 27, 2007 at 01:50:53PM -0800, travis@sgi.com wrote:
> Change loops controlled by 'for (i = 0; i < NR_CPUS; i++)' to use
> 'for_each_possible_cpu(i)' when there's a _remote possibility_ of
> dereferencing a non-allocated per_cpu variable involved.
>
> All files except mm/vmstat.c are x86 arch.
>
> Based on 2.6.24-rc3-mm1 .
>
> Thanks to pageexec@freemail.hu for pointing this out.
Looks good to me. 2.6.24 candidate.
-Andi
WARNING: multiple messages have this Message-ID (diff)
From: Andi Kleen <andi@firstfloor.org>
To: travis@sgi.com
Cc: Andrew Morton <akpm@linux-foundation.org>,
Andi Kleen <ak@suse.de>, Christoph Lameter <clameter@sgi.com>,
pageexec@freemail.hu, linux-mm@kvack.org,
linux-kernel@vger.kernel.org
Subject: Re: [PATCH 1/1] mm: Prevent dereferencing non-allocated per_cpu variables
Date: Tue, 27 Nov 2007 23:16:28 +0100 [thread overview]
Message-ID: <20071127221628.GG24223@one.firstfloor.org> (raw)
In-Reply-To: <20071127215054.660250000@sgi.com>
On Tue, Nov 27, 2007 at 01:50:53PM -0800, travis@sgi.com wrote:
> Change loops controlled by 'for (i = 0; i < NR_CPUS; i++)' to use
> 'for_each_possible_cpu(i)' when there's a _remote possibility_ of
> dereferencing a non-allocated per_cpu variable involved.
>
> All files except mm/vmstat.c are x86 arch.
>
> Based on 2.6.24-rc3-mm1 .
>
> Thanks to pageexec@freemail.hu for pointing this out.
Looks good to me. 2.6.24 candidate.
-Andi
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next prev parent reply other threads:[~2007-11-27 22:16 UTC|newest]
Thread overview: 22+ messages / expand[flat|nested] mbox.gz Atom feed top
[not found] <20071127215052.090968000@sgi.com>
2007-11-27 21:50 ` [PATCH 1/1] mm: Prevent dereferencing non-allocated per_cpu variables travis
2007-11-27 21:50 ` travis
2007-11-27 22:01 ` pageexec
2007-11-27 22:01 ` pageexec
2007-11-27 22:16 ` Andi Kleen [this message]
2007-11-27 22:16 ` Andi Kleen
2007-11-27 23:12 ` Andrew Morton
2007-11-27 23:12 ` Andrew Morton
2007-11-27 23:15 ` Christoph Lameter
2007-11-27 23:15 ` Christoph Lameter
2007-11-27 23:21 ` Andrew Morton
2007-11-27 23:21 ` Andrew Morton
2007-11-27 23:22 ` Christoph Lameter
2007-11-27 23:22 ` Christoph Lameter
2007-11-27 23:42 ` Andrew Morton
2007-11-27 23:42 ` Andrew Morton
2007-11-27 23:48 ` Andi Kleen
2007-11-27 23:48 ` Andi Kleen
2007-11-28 0:15 ` Christoph Lameter
2007-11-28 0:15 ` Christoph Lameter
2007-11-28 0:09 ` Christoph Lameter
2007-11-28 0:09 ` Christoph Lameter
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