From mboxrd@z Thu Jan 1 00:00:00 1970 From: Jens Axboe Subject: Re: [PATCH 0/7] Per-bdi writeback flusher threads v20 Date: Fri, 11 Sep 2009 16:29:26 +0200 Message-ID: <20090911142926.GI14984@kernel.dk> References: <1252654450-25721-1-git-send-email-jens.axboe@oracle.com> <20090911134241.GB19707@mit.edu> <20090911141659.GA3508@infradead.org> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Cc: Theodore Tso , linux-kernel@vger.kernel.org, linux-fsdevel@vger.kernel.org, chris.mason@oracle.com, akpm@linux-foundation.org, jack@suse.cz, Wu Fengguang To: Christoph Hellwig Return-path: Received: from brick.kernel.dk ([93.163.65.50]:36514 "EHLO kernel.dk" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751777AbZIKO3Y (ORCPT ); Fri, 11 Sep 2009 10:29:24 -0400 Content-Disposition: inline In-Reply-To: <20090911141659.GA3508@infradead.org> Sender: linux-fsdevel-owner@vger.kernel.org List-ID: On Fri, Sep 11 2009, Christoph Hellwig wrote: > On Fri, Sep 11, 2009 at 09:42:41AM -0400, Theodore Tso wrote: > > > v19 include: > > > > > > - Drop the max writeback pages patch from Ted. I think we should do > > > something to that effect, but there's really no reason to entangle > > > it with this patchset. > > > > That's reasonable, but I'd really like to know whether some VM hacker > > going to try to deal with this during the 2.6.32 window? Such as > > maybe Wu Fengguang's patches, perhaps? > > > > Or do I need to put in some kind of hack into ext4 ala what XFS did to > > work around this problem until we can come up with a longer-term fix? > > I defintively want to see something in the VM, but I also agree with > Jens' decision not to include it in the patchkit. It's not really > related to the patchkit except for depending on it, and we still > have a lot of discussion going on. If we can't get an agreement with > the VM people by the end of the regular merge window I'm all for pushing > your simple patch. I'd also appreciate if we can keep Wu (or Ted's) patch out of the merge until after -rc1 or at least with a few -git releases in between, so it'll be easier to check for regressions. -- Jens Axboe