Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S967297Ab3DRJoH (ORCPT ); Thu, 18 Apr 2013 05:44:07 -0400 Received: from www.linutronix.de ([62.245.132.108]:43288 "EHLO Galois.linutronix.de" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S967066Ab3DRJoF (ORCPT ); Thu, 18 Apr 2013 05:44:05 -0400 Date: Thu, 18 Apr 2013 11:44:03 +0200 (CEST) From: Thomas Gleixner To: Michael Bohan cc: LKML , linux-arm-msm@vger.kernel.org, Peter Zijlstra Subject: Re: [PATCH 2/2] hrtimer: Prevent enqueue of hrtimer on dead CPU In-Reply-To: <1365628068-32738-3-git-send-email-mbohan@codeaurora.org> Message-ID: References: <1365628068-32738-1-git-send-email-mbohan@codeaurora.org> <1365628068-32738-3-git-send-email-mbohan@codeaurora.org> User-Agent: Alpine 2.02 (LFD 1266 2009-07-14) MIME-Version: 1.0 Content-Type: TEXT/PLAIN; charset=US-ASCII X-Linutronix-Spam-Score: -1.0 X-Linutronix-Spam-Level: - X-Linutronix-Spam-Status: No , -1.0 points, 5.0 required, ALL_TRUSTED=-1,SHORTCIRCUIT=-0.0001 Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 610 Lines: 19 On Wed, 10 Apr 2013, Michael Bohan wrote: > When switching the hrtimer cpu_base, we briefly allow for > preemption to become enabled by unlocking the cpu_base lock. No, interrupts still stay disabled and there is no way to preempt here. Can you please explain, what you are trying to do and what makes you think there is a problem in that code? Thanks, tglx -- 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/