From mboxrd@z Thu Jan 1 00:00:00 1970 Subject: Re: blk_congestion_wait racy? Message-ID: From: Martin Schwidefsky Date: Tue, 9 Mar 2004 18:54:44 +0100 MIME-Version: 1.0 Content-type: text/plain; charset=ISO-8859-1 Content-transfer-encoding: 8BIT Sender: owner-linux-mm@kvack.org Return-Path: To: Nick Piggin Cc: Andrew Morton , linux-kernel@vger.kernel.org, linux-mm@kvack.org List-ID: 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 Schonaicherstr. 220, D-71032 Boblingen, Telefon: 49 - (0)7031 - 16-2247 E-Mail: schwidefsky@de.ibm.com -- To unsubscribe, send a message with 'unsubscribe linux-mm' in the body to majordomo@kvack.org. For more info on Linux MM, see: http://www.linux-mm.org/ . Don't email: aart@kvack.org