Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1752113AbaFFOEC (ORCPT ); Fri, 6 Jun 2014 10:04:02 -0400 Received: from mail-pd0-f177.google.com ([209.85.192.177]:61721 "EHLO mail-pd0-f177.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751694AbaFFOEA (ORCPT ); Fri, 6 Jun 2014 10:04:00 -0400 Message-ID: <5391CA4A.1060903@suse.cz> Date: Fri, 06 Jun 2014 16:03:54 +0200 From: Jiri Slaby User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:24.0) Gecko/20100101 Thunderbird/24.5.0 MIME-Version: 1.0 To: Konrad Rzeszutek Wilk , Greg KH CC: linux-kernel@vger.kernel.org, stable@vger.kernel.org, xen-devel@lists.xenproject.org, felipe.franciosi@citrix.com, roger.pau@citrix.com, jerry.snitselaar@oracle.com, axboe@kernel.dk, vkuznets@redhat.com Subject: Re: Backport request to stable of two performance related fixes for xen-blkfront (3.13 fixes to earlier trees) References: <20140514191122.GA7659@phenom.dumpdata.com> <20140604054848.GA20895@kroah.com> <53919C2B.6080606@suse.cz> <20140606135657.GB11781@kroah.com> <20140606140207.GA9426@localhost.localdomain> In-Reply-To: <20140606140207.GA9426@localhost.localdomain> X-Enigmail-Version: 1.6 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 On 06/06/2014 04:02 PM, Konrad Rzeszutek Wilk wrote: > On Fri, Jun 06, 2014 at 06:56:57AM -0700, Greg KH wrote: >> On Fri, Jun 06, 2014 at 12:47:07PM +0200, Jiri Slaby wrote: >>> On 06/04/2014 07:48 AM, Greg KH wrote: >>>> On Wed, May 14, 2014 at 03:11:22PM -0400, Konrad Rzeszutek Wilk wrote: >>>>> Hey Greg >>>>> >>>>> This email is in regards to backporting two patches to stable that >>>>> fall under the 'performance' rule: >>>>> >>>>> bfe11d6de1c416cea4f3f0f35f864162063ce3fa >>>>> fbe363c476afe8ec992d3baf682670a4bd1b6ce6 >>>> >>>> Now queued up, thanks. >>> >>> AFAIU, they introduce a performance regression. >> >> That "regression" is also in mainline, right? As Konrad doesn't seem to >> think it matters, I'm deferring to the maintainer here. > > Hehe. > > Greg is correct - the performance regression with tmpfs/ramfs does exist > upstream and once a fix has been established will be dealt with. Right now we > are fousing on the 99% usage models which is solid state, rotational, > and flash (just got one of those) and the two patches outlined above are > needed for the stable trees. Ok, I wanted to be sure before I take these to 3.12. Thanks. -- js suse labs -- 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/