From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1755252AbXJWWbc (ORCPT ); Tue, 23 Oct 2007 18:31:32 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1752645AbXJWWbX (ORCPT ); Tue, 23 Oct 2007 18:31:23 -0400 Received: from ogre.sisk.pl ([217.79.144.158]:38753 "EHLO ogre.sisk.pl" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752634AbXJWWbW (ORCPT ); Tue, 23 Oct 2007 18:31:22 -0400 From: "Rafael J. Wysocki" To: Andrew Morton Subject: [PATCH] Freezer: Do not allow freezing processes to clear TIF_SIGPENDING Date: Wed, 24 Oct 2007 00:47:09 +0200 User-Agent: KMail/1.9.5 Cc: LKML , Nigel Cunningham , Pavel Machek MIME-Version: 1.0 Content-Type: text/plain; charset="iso-8859-2" Content-Transfer-Encoding: 7bit Content-Disposition: inline Message-Id: <200710240047.09878.rjw@sisk.pl> Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org [Please consider as 2.6.24 material.] --- From: Rafael J. Wysocki Do not allow processes to clear their TIF_SIGPENDING if TIF_FREEZE is set, so that they will not race with the freezer (like mysqld does, for example). Signed-off-by: Rafael J. Wysocki Acked-by: Nigel Cunningham Acked-by: Pavel Machek --- kernel/signal.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) Index: linux-2.6.23/kernel/signal.c =================================================================== --- linux-2.6.23.orig/kernel/signal.c +++ linux-2.6.23/kernel/signal.c @@ -124,7 +124,7 @@ void recalc_sigpending_and_wake(struct t void recalc_sigpending(void) { - if (!recalc_sigpending_tsk(current)) + if (!recalc_sigpending_tsk(current) && !freezing(current)) clear_thread_flag(TIF_SIGPENDING); }