Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1757394AbYFJK3S (ORCPT ); Tue, 10 Jun 2008 06:29:18 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1753491AbYFJK3K (ORCPT ); Tue, 10 Jun 2008 06:29:10 -0400 Received: from mx3.mail.elte.hu ([157.181.1.138]:38131 "EHLO mx3.mail.elte.hu" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1753329AbYFJK3J (ORCPT ); Tue, 10 Jun 2008 06:29:09 -0400 Date: Tue, 10 Jun 2008 12:28:58 +0200 From: Ingo Molnar To: David Rientjes Cc: Peter Zijlstra , Paul Menage , Paul Jackson , linux-kernel@vger.kernel.org Subject: Re: [patch] sched: prevent bound kthreads from changing cpus_allowed Message-ID: <20080610102858.GE19136@elte.hu> References: MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: User-Agent: Mutt/1.5.18 (2008-05-17) X-ELTE-VirusStatus: clean X-ELTE-SpamScore: -1.5 X-ELTE-SpamLevel: X-ELTE-SpamCheck: no X-ELTE-SpamVersion: ELTE 2.0 X-ELTE-SpamCheck-Details: score=-1.5 required=5.9 tests=BAYES_00 autolearn=no SpamAssassin version=3.2.3 -1.5 BAYES_00 BODY: Bayesian spam probability is 0 to 1% [score: 0.0000] Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 659 Lines: 17 * David Rientjes wrote: > Kthreads that have called kthread_bind() are bound to specific cpus, > so other tasks should not be able to change their cpus_allowed from > under them. Otherwise, it is possible to move kthreads, such as the > migration or software watchdog threads, so they are not allowed access > to the cpu they work on. applied to tip/sched-devel, thanks David. Ingo -- 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/