From mboxrd@z Thu Jan 1 00:00:00 1970 From: Tejun Heo Subject: Re: [PATCHSET] block: implement per-blkg request allocation Date: Tue, 5 Jun 2012 11:02:18 +0900 Message-ID: <20120605020218.GE21357@google.com> References: <1338793697-10735-1-git-send-email-tj@kernel.org> <20120604203004.GN4458@redhat.com> Mime-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Return-path: Content-Disposition: inline In-Reply-To: <20120604203004.GN4458-H+wXaHxf7aLQT0dZR+AlfA@public.gmane.org> List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: containers-bounces-cunTk1MwBs9QetFLy7KEm3xJsTq8ys+cHZ5vskTnxNA@public.gmane.org Errors-To: containers-bounces-cunTk1MwBs9QetFLy7KEm3xJsTq8ys+cHZ5vskTnxNA@public.gmane.org To: Vivek Goyal Cc: axboe-tSWWG44O7X1aa/9Udqfwiw@public.gmane.org, ctalbott-hpIqsD4AKlfQT0dZR+AlfA@public.gmane.org, rni-hpIqsD4AKlfQT0dZR+AlfA@public.gmane.org, containers-cunTk1MwBs9QetFLy7KEm3xJsTq8ys+cHZ5vskTnxNA@public.gmane.org, hughd-hpIqsD4AKlfQT0dZR+AlfA@public.gmane.org, akpm-de/tnXTf+JLsfHDXvbKv3WD2FQJk+8+b@public.gmane.org, fengguang.wu-ral2JQCrhuEAvxtiuMwx3w@public.gmane.org List-Id: containers.vger.kernel.org On Mon, Jun 04, 2012 at 04:30:04PM -0400, Vivek Goyal wrote: > On Mon, Jun 04, 2012 at 12:08:07AM -0700, Tejun Heo wrote: > > Hello, > > > > Currently block layer shares a single request_list (@q->rq) for all > > IOs regardless of their blkcg associations. This means that once the > > shared pool is exhausted, blkcg limits don't mean much. Whoever grabs > > the requests being freed the first grabs the next IO slot. > > Hi Tejun, > > I noticed that lkml is not CCed in this patchset. Is that intentional? I > think it is a good idea to keep lkml CCed for core block layer changes. Eh, crap. Copy & paste mistake. Will resend with the suggested updates and acked-bys added. Thanks. -- tejun