Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1161357AbWASTiN (ORCPT ); Thu, 19 Jan 2006 14:38:13 -0500 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1161360AbWASTiN (ORCPT ); Thu, 19 Jan 2006 14:38:13 -0500 Received: from wproxy.gmail.com ([64.233.184.202]:43973 "EHLO wproxy.gmail.com") by vger.kernel.org with ESMTP id S1161357AbWASTiM convert rfc822-to-8bit (ORCPT ); Thu, 19 Jan 2006 14:38:12 -0500 DomainKey-Signature: a=rsa-sha1; q=dns; c=nofws; s=beta; d=gmail.com; h=received:message-id:date:from:to:subject:cc:in-reply-to:mime-version:content-type:content-transfer-encoding:content-disposition:references; b=PL5gFJP9MiwihcqhBgSqtohNxM/AIWqYv+9IrpGAzNdoaSzv4il8olq35xLxItIpxdmVVSwi8KwSKUrVjWYCwvvhAHcGQpTl1u70hPSiJ7uOieeMjRg+/wBaCquBTrJQjEDFfxthTxjPSlyoIV390ykmT35Um3o2PCorVEtYW9g= Message-ID: <5c49b0ed0601191138g17411d3ene89380a13a7faee9@mail.gmail.com> Date: Thu, 19 Jan 2006 11:38:12 -0800 From: Nate Diller To: Jens Axboe Subject: Re: Fall back io scheduler for 2.6.15? Cc: Chuck Ebbert <76306.1226@compuserve.com>, Andrew Morton , linux-kernel , Mingming Cao In-Reply-To: <20060116084336.GO3945@suse.de> MIME-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: 7BIT Content-Disposition: inline References: <200601141113_MC3-1-B5DA-F6EC@compuserve.com> <20060116084336.GO3945@suse.de> Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 1365 Lines: 41 On 1/16/06, Jens Axboe wrote: > On Sat, Jan 14 2006, Chuck Ebbert wrote: > > In-Reply-To: <20060113174914.7907bf2c.akpm@osdl.org> > > > > On Fri, 13 Jan 2006, Andrew Morton wrote: > > > > > OK. And I assume that AS wasn't compiled, so that's why it fell back? > > > > As of 2.6.15 you need to use "anticipatory" instead of "as". > > > > Maybe this patch would help? > > > > Signed-off-by: Chuck Ebbert <76306.1226@compuserve.com> > > > > --- 2.6.15a.orig/block/elevator.c > > +++ 2.6.15a/block/elevator.c > > @@ -150,6 +150,13 @@ static void elevator_setup_default(void) > > if (!chosen_elevator[0]) > > strcpy(chosen_elevator, CONFIG_DEFAULT_IOSCHED); > > > > + /* > > + * Be backwards-compatible with previous kernels, so users > > + * won't get the wrong elevator. > > + */ > > + if (!strcmp(chosen_elevator, "as")) > > + strcpy(chosen_elevator, "anticipatory"); > > + > > /* > > * If the given scheduler is not available, fall back to no-op. > > */ > > We probably should apply this, since it used to be 'as'. i agree NATE - 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/