Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1752632Ab1FTTzH (ORCPT ); Mon, 20 Jun 2011 15:55:07 -0400 Received: from 173-166-109-252-newengland.hfc.comcastbusiness.net ([173.166.109.252]:50930 "EHLO bombadil.infradead.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1750789Ab1FTTzE (ORCPT ); Mon, 20 Jun 2011 15:55:04 -0400 Date: Mon, 20 Jun 2011 15:55:00 -0400 From: Christoph Hellwig To: Justin TerAvest Cc: vgoyal@redhat.com, jaxboe@fusionio.com, linux-kernel@vger.kernel.org, hch@infradead.org Subject: Re: [PATCH] cfq: Remove special treatment for metadata rqs. Message-ID: <20110620195500.GA9696@infradead.org> References: <1308599559-16839-1-git-send-email-teravest@google.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <1308599559-16839-1-git-send-email-teravest@google.com> User-Agent: Mutt/1.5.21 (2010-09-15) X-SRS-Rewrite: SMTP reverse-path rewritten from by bombadil.infradead.org See http://www.infradead.org/rpr.html Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 729 Lines: 15 On Mon, Jun 20, 2011 at 12:52:39PM -0700, Justin TerAvest wrote: > There is no consistency among filesystems from what bios (or requests) > are marked as being metadata. It's interesting to expose this in traces, > but we shouldn't schedule the requests differently based on whether or > not they're marked as being metadata. Personally I totally agree. If anyone can demonstrate an effect from the current hacks we shall add them back with a special REQ_ flag just for the boost. -- 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/