From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1755868Ab1HaVPk (ORCPT ); Wed, 31 Aug 2011 17:15:40 -0400 Received: from one.firstfloor.org ([213.235.205.2]:33775 "EHLO one.firstfloor.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1755823Ab1HaVPg (ORCPT ); Wed, 31 Aug 2011 17:15:36 -0400 Date: Wed, 31 Aug 2011 23:15:32 +0200 From: Andi Kleen To: Daniel Ehrenberg Cc: Andi Kleen , Christoph Hellwig , linux-kernel@vger.kernel.org Subject: Re: Approaches to making io_submit not block Message-ID: <20110831211532.GA7761@one.firstfloor.org> References: <20110830053231.GA1627@infradead.org> <20110831052627.GA5338@infradead.org> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: User-Agent: Mutt/1.4.2.2i Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org > This objection would seem to point to the benefits of doing something > like Suparna's patches, with a wait queue per task, no? This preserves > the current regime where each thread calling io_submit ends up > submitting things in parallel. Yep, Suparna's code didn't have that problem. -Andi -- ak@linux.intel.com -- Speaking for myself only.