From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1753700AbZHaRft (ORCPT ); Mon, 31 Aug 2009 13:35:49 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1753139AbZHaRft (ORCPT ); Mon, 31 Aug 2009 13:35:49 -0400 Received: from mx1.redhat.com ([209.132.183.28]:8015 "EHLO mx1.redhat.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752183AbZHaRfs (ORCPT ); Mon, 31 Aug 2009 13:35:48 -0400 Message-ID: <4A9C09BE.4060404@redhat.com> Date: Mon, 31 Aug 2009 13:34:54 -0400 From: Rik van Riel User-Agent: Thunderbird 2.0.0.21 (X11/20090320) MIME-Version: 1.0 To: Vivek Goyal CC: linux-kernel@vger.kernel.org, jens.axboe@oracle.com, containers@lists.linux-foundation.org, dm-devel@redhat.com, nauman@google.com, dpshah@google.com, lizf@cn.fujitsu.com, mikew@google.com, fchecconi@gmail.com, paolo.valente@unimore.it, ryov@valinux.co.jp, fernando@oss.ntt.co.jp, s-uchida@ap.jp.nec.com, taka@valinux.co.jp, guijianfeng@cn.fujitsu.com, jmoyer@redhat.com, dhaval@linux.vnet.ibm.com, balbir@linux.vnet.ibm.com, righi.andrea@gmail.com, m-ikeda@ds.jp.nec.com, agk@redhat.com, akpm@linux-foundation.org, peterz@infradead.org, jmarchan@redhat.com, torvalds@linux-foundation.org, mingo@elte.hu Subject: Re: [PATCH 18/23] io-controller: blkio_cgroup patches from Ryo to track async bios. References: <1251495072-7780-1-git-send-email-vgoyal@redhat.com> <1251495072-7780-19-git-send-email-vgoyal@redhat.com> In-Reply-To: <1251495072-7780-19-git-send-email-vgoyal@redhat.com> Content-Type: text/plain; charset=ISO-8859-1; format=flowed Content-Transfer-Encoding: 7bit Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Vivek Goyal wrote: > o blkio_cgroup patches from Ryo to track async bios. > > o This functionality is used to determine the group of async IO from page > instead of context of submitting task. > > Signed-off-by: Hirokazu Takahashi > Signed-off-by: Ryo Tsuruta > Signed-off-by: Vivek Goyal This seems to be the most complex part of the code so far, but I see why this code is necessary. Acked-by: Rik van Riel