From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1755576Ab2BPWnG (ORCPT ); Thu, 16 Feb 2012 17:43:06 -0500 Received: from mail-pz0-f46.google.com ([209.85.210.46]:54205 "EHLO mail-pz0-f46.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1754848Ab2BPWnD (ORCPT ); Thu, 16 Feb 2012 17:43:03 -0500 Date: Thu, 16 Feb 2012 14:42:58 -0800 From: Tejun Heo To: Vivek Goyal Cc: axboe@kernel.dk, ctalbott@google.com, rni@google.com, linux-kernel@vger.kernel.org Subject: Re: [PATCH UPDATED2 11/11] blkcg: unify blkg's for blkcg policies Message-ID: <20120216224258.GN24986@google.com> References: <1328131156-13290-1-git-send-email-tj@kernel.org> <1328131156-13290-12-git-send-email-tj@kernel.org> <20120202003730.GC19837@google.com> <20120214013347.GK12117@google.com> <20120215170229.GE27312@redhat.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20120215170229.GE27312@redhat.com> User-Agent: Mutt/1.5.20 (2009-06-14) Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Hello, On Wed, Feb 15, 2012 at 12:02:29PM -0500, Vivek Goyal wrote: > - Cleanup in-place policy data update logic. > > - Do not kill all the groups upon one policy switch. Keep the group around > and just kill the policy data of associated policy. > > - Get rid if locking complexity and rcu around group removal. Replace with > double lock dancing stuff. Yeap, just sent out this one and fix for stacking. I'll probably do the in-place policy update thing next. > - Fix the per cpu alloc stat alloc mess. This is anyway needed > irrespective of cleanup. I'll ping Andrew again on the mempool thing on more time. Thanks. -- tejun