From mboxrd@z Thu Jan 1 00:00:00 1970 Date: Tue, 18 Mar 2008 20:55:01 +0900 From: KAMEZAWA Hiroyuki Subject: Re: [PATCH 2/4] Block I/O tracking Message-Id: <20080318205501.59877972.kamezawa.hiroyu@jp.fujitsu.com> In-Reply-To: <20080318.203422.45236787.taka@valinux.co.jp> References: <20080318.182251.93858044.taka@valinux.co.jp> <20080318.182906.104806991.taka@valinux.co.jp> <20080318192233.89c5cc3e.kamezawa.hiroyu@jp.fujitsu.com> <20080318.203422.45236787.taka@valinux.co.jp> Mime-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: 7bit Sender: owner-linux-mm@kvack.org Return-Path: To: Hirokazu Takahashi Cc: linux-mm@kvack.org, linux-kernel@vger.kernel.org, containers@lists.linux-foundation.org List-ID: On Tue, 18 Mar 2008 20:34:22 +0900 (JST) Hirokazu Takahashi wrote: > > > And, blist seems to be just used for force_empty. > > Do you really need this ? no alternative ? > > I selected this approach because it was the simplest way for the > first implementation. > > I've been also thinking about what you pointed. > If you don't mind taking a long time to remove a bio cgroup, it will be > the easiest way that you can scan all pages to find the pages which > belong to the cgroup and delete them. It may be enough since you may > say it will rarely happen. But it might cause some trouble on machines > with huge memory. > Hmm, force_empty itself is necessary ? Thanks, -Kame -- To unsubscribe, send a message with 'unsubscribe linux-mm' in the body to majordomo@kvack.org. For more info on Linux MM, see: http://www.linux-mm.org/ . Don't email: email@kvack.org