From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1757365AbYKDWyf (ORCPT ); Tue, 4 Nov 2008 17:54:35 -0500 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1754229AbYKDWy1 (ORCPT ); Tue, 4 Nov 2008 17:54:27 -0500 Received: from nlpi053.sbcis.sbc.com ([207.115.36.82]:58002 "EHLO nlpi053.prodigy.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1753804AbYKDWy0 (ORCPT ); Tue, 4 Nov 2008 17:54:26 -0500 Date: Tue, 4 Nov 2008 16:52:48 -0600 (CST) From: Christoph Lameter X-X-Sender: cl@quilx.com To: Andrew Morton cc: peterz@infradead.org, rientjes@google.com, npiggin@suse.de, menage@google.com, dfults@sgi.com, linux-kernel@vger.kernel.org, containers@lists.osdl.org Subject: Re: [patch 0/7] cpuset writeback throttling In-Reply-To: <20081104143534.b5c16147.akpm@linux-foundation.org> Message-ID: References: <20081104124753.fb1dde5a.akpm@linux-foundation.org> <1225831988.7803.1939.camel@twins> <20081104131637.68fbe055.akpm@linux-foundation.org> <1225833710.7803.1993.camel@twins> <20081104135004.f1717fcf.akpm@linux-foundation.org> <20081104143534.b5c16147.akpm@linux-foundation.org> MIME-Version: 1.0 Content-Type: TEXT/PLAIN; charset=US-ASCII; format=flowed X-Spam-Score: -2.6 Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Tue, 4 Nov 2008, Andrew Morton wrote: > To fix this with a memcg-based throttling, the operator would need to > be able to create memcg's which have pages only from particular nodes. > (That's a bit indirect relative to what they want to do, but is > presumably workable). The system would need to have the capability to find the memcg groups that have dirty pages for a certain inode. Files are not constrained to nodes or memcg groups.