From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S932143AbWHQADq (ORCPT ); Wed, 16 Aug 2006 20:03:46 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S932144AbWHQADq (ORCPT ); Wed, 16 Aug 2006 20:03:46 -0400 Received: from outpipe-village-512-1.bc.nu ([81.2.110.250]:44495 "EHLO lxorguk.ukuu.org.uk") by vger.kernel.org with ESMTP id S932143AbWHQADp (ORCPT ); Wed, 16 Aug 2006 20:03:45 -0400 Subject: Re: [RFC][PATCH 5/7] UBC: kernel memory accounting (core) From: Alan Cox To: rohitseth@google.com Cc: Dave Hansen , Kirill Korotaev , Andrew Morton , Linux Kernel Mailing List , Ingo Molnar , Christoph Hellwig , Pavel Emelianov , Andrey Savochkin , devel@openvz.org, Rik van Riel , hugh@veritas.com, ckrm-tech@lists.sourceforge.net, Andi Kleen In-Reply-To: <1155755729.22595.101.camel@galaxy.corp.google.com> References: <44E33893.6020700@sw.ru> <44E33C8A.6030705@sw.ru> <1155754029.9274.21.camel@localhost.localdomain> <1155755729.22595.101.camel@galaxy.corp.google.com> Content-Type: text/plain Content-Transfer-Encoding: 7bit Date: Thu, 17 Aug 2006 01:22:21 +0100 Message-Id: <1155774141.15195.0.camel@localhost.localdomain> Mime-Version: 1.0 X-Mailer: Evolution 2.6.2 (2.6.2-1.fc5.5) Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org Ar Mer, 2006-08-16 am 12:15 -0700, ysgrifennodd Rohit Seth: > resources will be allocated/freed in context of a user process. And at > that time we know if a allocation should succeed or not. So we may > actually not need to track kernel pages that closely. Quite the reverse, tracking kernel pages is critical, user pages kind of balance out for many cases kernel ones don't.