linux-kernel - Re: [PATCH] slab/mempolicy: always use local policy from interrupt context v3

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Message-ID: <alpine.DEB.2.00.1205080903320.25669@router.home>
Date:	Tue, 8 May 2012 09:03:46 -0500 (CDT)
From:	Christoph Lameter <cl@...ux.com>
To:	Andi Kleen <andi@...stfloor.org>
cc:	linux-kernel@...r.kernel.org, Andi Kleen <ak@...ux.intel.com>,
	penberg@...nel.org
Subject: Re: [PATCH] slab/mempolicy: always use local policy from interrupt
 context v3

On Mon, 7 May 2012, Andi Kleen wrote:

> slab_node() could access current->mempolicy from interrupt context.
> However there's a race condition during exit where the mempolicy
> is first freed and then the pointer zeroed.

Acked-by: Christoph Lameter <cl@...ux.com>
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