Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1760999AbXEMVwb (ORCPT ); Sun, 13 May 2007 17:52:31 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1757542AbXEMVwX (ORCPT ); Sun, 13 May 2007 17:52:23 -0400 Received: from mail.screens.ru ([213.234.233.54]:41660 "EHLO mail.screens.ru" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1755904AbXEMVwW (ORCPT ); Sun, 13 May 2007 17:52:22 -0400 Date: Mon, 14 May 2007 01:52:26 +0400 From: Oleg Nesterov To: Andrew Morton , "Rafael J. Wysocki" Cc: LKML , Michal Piotrowski , Alex Dubov , Pierre Ossman Subject: [PATCH] for 2.6.22, make freezeable workqueues singlethread Message-ID: <20070513215226.GB3198@tv-sign.ru> References: <200705132132.08546.rjw@sisk.pl> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <200705132132.08546.rjw@sisk.pl> User-Agent: Mutt/1.5.11 Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 1141 Lines: 25 It is a known fact that freezeable multithreaded workqueues doesn't like CPU_DEAD. We keep them only for the incoming CPU-hotplug rework. Sadly, we can't just kill create_freezeable_workqueue() right now, make them singlethread. Signed-off-by: Oleg Nesterov --- OLD/include/linux/workqueue.h~ 2007-05-01 21:52:47.000000000 +0400 +++ OLD/include/linux/workqueue.h 2007-05-14 00:41:58.000000000 +0400 @@ -122,7 +122,7 @@ extern struct workqueue_struct *__create int singlethread, int freezeable); #define create_workqueue(name) __create_workqueue((name), 0, 0) -#define create_freezeable_workqueue(name) __create_workqueue((name), 0, 1) +#define create_freezeable_workqueue(name) __create_workqueue((name), 1, 1) #define create_singlethread_workqueue(name) __create_workqueue((name), 1, 0) extern void destroy_workqueue(struct workqueue_struct *wq); - 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/