Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1755478Ab2EHODu (ORCPT ); Tue, 8 May 2012 10:03:50 -0400 Received: from smtp106.prem.mail.ac4.yahoo.com ([76.13.13.45]:36858 "HELO smtp106.prem.mail.ac4.yahoo.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with SMTP id S1754642Ab2EHODt (ORCPT ); Tue, 8 May 2012 10:03:49 -0400 X-Yahoo-Newman-Property: ymail-3 X-YMail-OSG: fMm4dc4VM1nfi6f61aNVsMm6nh4HFaG5mWhsryxeZ53zgPm hMdJPrrIw2DmQFyOlbvhOzE.r4kLiuXjKkSwd_EwlsD_VRoYWeGJYfzGW1uM 9dGWi13.xMetZe.wT5zbwLyDcpf68csqKoRuaP49racP9cYtcYDl3lWP3bA7 ffAUA081kgZ7PCpzcJFXvF6Xw6rlWjeXACQKJ99HzsZ8hBEOZnJ9ZzhzNTBm rnGLfgT9ZYSHHBrHZWKVi0Xw4p_KdsgVhHl690g6a_usbjM2LzvocGlT08y7 Ih7A5XaXQ9FqCgFnJFYa8wO9_BSRXft8feAx_4lQP0i2LUjGGiy1sklrewBC KsVWrn89cLZqFimrljdb1ZsinfvS5ItAZYGRLR6AzuDxght0nhk.sV7Xz2YW Zl1pWZYrFurG_8WrHDQxTePALmH.jM7zeBqtx X-Yahoo-SMTP: _Dag8S.swBC1p4FJKLCXbs8NQzyse1SYSgnAbY0- Date: Tue, 8 May 2012 09:03:46 -0500 (CDT) From: Christoph Lameter X-X-Sender: cl@router.home To: Andi Kleen cc: linux-kernel@vger.kernel.org, Andi Kleen , penberg@kernel.org Subject: Re: [PATCH] slab/mempolicy: always use local policy from interrupt context v3 In-Reply-To: <1336431315-29736-1-git-send-email-andi@firstfloor.org> Message-ID: References: <1336431315-29736-1-git-send-email-andi@firstfloor.org> User-Agent: Alpine 2.00 (DEB 1167 2008-08-23) MIME-Version: 1.0 Content-Type: TEXT/PLAIN; charset=US-ASCII Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 511 Lines: 12 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 -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/