From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1752167Ab1H0N7E (ORCPT ); Sat, 27 Aug 2011 09:59:04 -0400 Received: from mail-wy0-f174.google.com ([74.125.82.174]:35970 "EHLO mail-wy0-f174.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751433Ab1H0N7C (ORCPT ); Sat, 27 Aug 2011 09:59:02 -0400 Date: Sat, 27 Aug 2011 15:58:58 +0200 From: Frederic Weisbecker To: Li Zefan Cc: LKML , Andrew Morton , Johannes Weiner , Aditya Kali , Oleg Nesterov Subject: Re: [PATCH 4/8] cgroups: New cancel_attach_task subsystem callback Message-ID: <20110827135856.GJ3298@somewhere> References: <1311956010-32076-1-git-send-email-fweisbec@gmail.com> <1311956010-32076-5-git-send-email-fweisbec@gmail.com> <4E4B2A33.6060909@cn.fujitsu.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <4E4B2A33.6060909@cn.fujitsu.com> User-Agent: Mutt/1.5.21 (2010-09-15) Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Wed, Aug 17, 2011 at 10:40:51AM +0800, Li Zefan wrote: > Frederic Weisbecker wrote: > > To cancel a process attachment on a subsystem, we only call the > > cancel_attach() callback once on the leader but we have no > > way to cancel the attachment individually for each member of > > the process group. > > > > This is going to be needed for the max number of tasks susbystem > > that is coming. > > > > To prepare for this integration, call a new cancel_attach_task() > > callback on each task of the group until we reach the member that > > failed to attach. > > > > Document this new callback in Documentation/cgroups/cgroups.txt I will. Thanks.