From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1754263AbbKCPQq (ORCPT ); Tue, 3 Nov 2015 10:16:46 -0500 Received: from mx1.redhat.com ([209.132.183.28]:44432 "EHLO mx1.redhat.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752668AbbKCPQm (ORCPT ); Tue, 3 Nov 2015 10:16:42 -0500 From: Ulrich Obergfell To: linux-kernel@vger.kernel.org Cc: akpm@linux-foundation.org, dzickus@redhat.com, atomlin@redhat.com, uobergfe@redhat.com Subject: [PATCH 0/4] watchdog: address various races (CPU hotplug, timer expiry) Date: Tue, 3 Nov 2015 16:20:57 +0100 Message-Id: <1446564061-3379-1-git-send-email-uobergfe@redhat.com> Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org This patch set addresses various races in relation to CPU hotplug and a race in relation to watchdog timer expiry. I discovered the corner cases during code inspection. I haven't seen any of these issues occur in practice. Ulrich Obergfell (4): watchdog: avoid race between lockup detector suspend/resume and CPU hotplug watchdog: avoid races between /proc handlers and CPU hotplug watchdog: remove {get|put}_online_cpus() from watchdog_{park|unpark}_threads() watchdog: fix race between proc_watchdog_thresh() and watchdog_timer_fn() kernel/watchdog.c | 20 +++++++++++++++----- 1 file changed, 15 insertions(+), 5 deletions(-) -- 1.7.11.7