From mboxrd@z Thu Jan 1 00:00:00 1970 From: Vivek Goyal Subject: Re: [PATCHSET] block: implement per-blkg request allocation Date: Mon, 4 Jun 2012 16:30:04 -0400 Message-ID: <20120604203004.GN4458@redhat.com> References: <1338793697-10735-1-git-send-email-tj@kernel.org> Mime-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Return-path: Content-Disposition: inline In-Reply-To: <1338793697-10735-1-git-send-email-tj-DgEjT+Ai2ygdnm+yROfE0A@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: Tejun Heo 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 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. Thanks Vivek