Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S262077AbUCIRzq (ORCPT ); Tue, 9 Mar 2004 12:55:46 -0500 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S262075AbUCIRzq (ORCPT ); Tue, 9 Mar 2004 12:55:46 -0500 Received: from mtagate6.de.ibm.com ([195.212.29.155]:56776 "EHLO mtagate6.de.ibm.com") by vger.kernel.org with ESMTP id S262077AbUCIRzp convert rfc822-to-8bit (ORCPT ); Tue, 9 Mar 2004 12:55:45 -0500 Subject: Re: blk_congestion_wait racy? To: Nick Piggin Cc: Andrew Morton , linux-kernel@vger.kernel.org, linux-mm@kvack.org X-Mailer: Lotus Notes Release 5.0.11 July 24, 2002 Message-ID: From: Martin Schwidefsky Date: Tue, 9 Mar 2004 18:54:44 +0100 X-MIMETrack: Serialize by Router on D12ML062/12/M/IBM(Release 6.0.2CF2|July 23, 2003) at 09/03/2004 18:55:12 MIME-Version: 1.0 Content-type: text/plain; charset=ISO-8859-1 Content-transfer-encoding: 8BIT Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 812 Lines: 26 Hi Nick, > Another problem is that if there are no requests anywhere in the system, > sleepers in blk_congestion_wait will not get kicked. blk_congestion_wait > could probably have blk_run_queues moved after prepare_to_wait, which > might help. I tried putting blk_run_queues after prepare_to_wait, it worked but it didn't help. The test still needs close to a minute. blue skies, Martin Linux/390 Design & Development, IBM Deutschland Entwicklung GmbH Sch?naicherstr. 220, D-71032 B?blingen, Telefon: 49 - (0)7031 - 16-2247 E-Mail: schwidefsky@de.ibm.com - 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/