From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mail144.messagelabs.com (mail144.messagelabs.com [216.82.254.51]) by kanga.kvack.org (Postfix) with ESMTP id 5BB056B011C for ; Wed, 22 Jul 2009 13:52:34 -0400 (EDT) Received: from d03relay02.boulder.ibm.com (d03relay02.boulder.ibm.com [9.17.195.227]) by e38.co.us.ibm.com (8.14.3/8.13.1) with ESMTP id n6MHnCc8018921 for ; Wed, 22 Jul 2009 11:49:12 -0600 Received: from d03av02.boulder.ibm.com (d03av02.boulder.ibm.com [9.17.195.168]) by d03relay02.boulder.ibm.com (8.13.8/8.13.8/NCO v9.2) with ESMTP id n6MHqTGp218274 for ; Wed, 22 Jul 2009 11:52:30 -0600 Received: from d03av02.boulder.ibm.com (loopback [127.0.0.1]) by d03av02.boulder.ibm.com (8.12.11.20060308/8.13.3) with ESMTP id n6MHqSkp023760 for ; Wed, 22 Jul 2009 11:52:29 -0600 Date: Wed, 22 Jul 2009 12:52:23 -0500 From: "Serge E. Hallyn" Subject: Re: [RFC v17][PATCH 22/60] c/r: external checkpoint of a task other than ourself Message-ID: <20090722175223.GA19389@us.ibm.com> References: <1248256822-23416-1-git-send-email-orenl@librato.com> <1248256822-23416-23-git-send-email-orenl@librato.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <1248256822-23416-23-git-send-email-orenl@librato.com> Sender: owner-linux-mm@kvack.org To: Oren Laadan Cc: Andrew Morton , Linus Torvalds , containers@lists.linux-foundation.org, linux-kernel@vger.kernel.org, linux-mm@kvack.org, linux-api@vger.kernel.org, Dave Hansen , Ingo Molnar , "H. Peter Anvin" , Alexander Viro , Pavel Emelyanov , Alexey Dobriyan , Oren Laadan List-ID: Quoting Oren Laadan (orenl@librato.com): > Now we can do "external" checkpoint, i.e. act on another task. ... > long do_checkpoint(struct ckpt_ctx *ctx, pid_t pid) > { > long ret; > > + ret = init_checkpoint_ctx(ctx, pid); > + if (ret < 0) > + return ret; > + > + if (ctx->root_freezer) { > + ret = cgroup_freezer_begin_checkpoint(ctx->root_freezer); > + if (ret < 0) > + return ret; > + } Self-checkpoint of a task in root freezer is now denied, though. Was that intentional? -serge -- 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