Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1753599Ab0GXJa5 (ORCPT ); Sat, 24 Jul 2010 05:30:57 -0400 Received: from 0122700014.0.fullrate.dk ([95.166.99.235]:53653 "EHLO kernel.dk" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752079Ab0GXJa4 (ORCPT ); Sat, 24 Jul 2010 05:30:56 -0400 Message-ID: <4C4AB2C0.6050300@kernel.dk> Date: Sat, 24 Jul 2010 11:30:40 +0200 From: Jens Axboe MIME-Version: 1.0 To: Jeff Moyer CC: Vivek Goyal , linux-kernel@vger.kernel.org Subject: Re: [PATCH] cfq-iosched: don't allow aliased requests to starve others References: <20100723042530.GD11236@redhat.com> In-Reply-To: Content-Type: text/plain; charset=ISO-8859-1 Content-Transfer-Encoding: 7bit Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 812 Lines: 21 On 07/23/2010 05:07 PM, Jeff Moyer wrote: > Vivek Goyal writes: >> Also for my education purposes I was curious to know that why can't >> we keep aliased requests in the service tree. > > You know, I dug back through the logs, and I didn't find any mention of > that. The anticipatory scheduler used to allow such aliases, but then > that support was removed in favor of a simpler approach. So, the reason > may just be out of convenience. There's no technical reason why we can't do that, at least it'll work in the rbtree. -- Jens Axboe -- 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/