From mboxrd@z Thu Jan 1 00:00:00 1970 From: Tejun Heo Subject: Re: [LSF/MM TOPIC][ATTEND] Improving async io, specifically io_submit latencies Date: Fri, 1 Mar 2013 08:31:21 -0800 Message-ID: <20130301163121.GB2481@mtj.dyndns.org> References: <512FB91B.80102@suse.de> <20130228210318.GA3762@google.com> <20130301162038.GA2481@mtj.dyndns.org> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Cc: Kent Overstreet , Ankit Jain , lsf-pc@lists.linux-foundation.org, linux-fsdevel@vger.kernel.org, Jan Kara , Zach Brown , tytso@mit.edu, Jens Axboe , Li Zefan , cgroups@vger.kernel.org To: Jeff Moyer Return-path: Received: from mail-qa0-f53.google.com ([209.85.216.53]:51972 "EHLO mail-qa0-f53.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751058Ab3CAQbe (ORCPT ); Fri, 1 Mar 2013 11:31:34 -0500 Content-Disposition: inline In-Reply-To: <20130301162038.GA2481@mtj.dyndns.org> Sender: linux-fsdevel-owner@vger.kernel.org List-ID: On Fri, Mar 01, 2013 at 08:20:38AM -0800, Tejun Heo wrote: > One obstacle there is we currently don't have a way to say "this > workqueue belongs to this cgroup" as there is no "this" cgroup defined > (awesome design). That part is being rectified but for the time being > we can probably say "this workqueue belongs to the same cgroups as > %current" which should be enough for aio contexts, I think. Or maybe we should just add current->wq which always matches cgroup associations of the task? -- tejun