Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1755362Ab0G1Oml (ORCPT ); Wed, 28 Jul 2010 10:42:41 -0400 Received: from e8.ny.us.ibm.com ([32.97.182.138]:34437 "EHLO e8.ny.us.ibm.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1755247Ab0G1Omg (ORCPT ); Wed, 28 Jul 2010 10:42:36 -0400 Date: Wed, 28 Jul 2010 20:12:29 +0530 From: Balbir Singh To: KAMEZAWA Hiroyuki Cc: "linux-mm@kvack.org" , "nishimura@mxp.nes.nec.co.jp" , gthelen@google.com, m-ikeda@ds.jp.nec.com, "akpm@linux-foundation.org" , "linux-kernel@vger.kernel.org" Subject: Re: [RFC][PATCH 0/7][memcg] towards I/O aware memory cgroup Message-ID: <20100728144229.GD14369@balbir.in.ibm.com> Reply-To: balbir@linux.vnet.ibm.com References: <20100727165155.8b458b7f.kamezawa.hiroyu@jp.fujitsu.com> MIME-Version: 1.0 Content-Type: text/plain; charset=iso-8859-1 Content-Disposition: inline In-Reply-To: <20100727165155.8b458b7f.kamezawa.hiroyu@jp.fujitsu.com> User-Agent: Mutt/1.5.20 (2009-12-10) Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 1361 Lines: 35 * KAMEZAWA Hiroyuki [2010-07-27 16:51:55]: > > From a view of patch management, this set is a mixture of a few features for > memcg, and I should divide them to some groups. But, at first, I'd like to > show the total view. This set is consists from 5 sets. Main purpose is > create a room in page_cgroup for I/O tracking and add light-weight access method > for file-cache related accounting. > > 1. An virtual-indexed array. > 2,3. Use virtual-indexed array for id-to-memory_cgroup detection. > 4. modify page_cgroup to use ID instead of pointer, this gives us enough > spaces for further memory tracking. Yes, this is good, I've been meaning to merge the flags and the pointer. Thanks for looking into this. > 5,6 Use light-weight locking mechanism for file related accounting. > 7. use spin_lock instead of bit_spinlock. > > > As a function, patch 5,6 can be an independent patch and I'll accept > reordering series of patch if someone requests. > But we'll need all, I think. > (irq_save for patch 7 will be required later.) > -- Three Cheers, Balbir -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/