From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1422659Ab2JXVme (ORCPT ); Wed, 24 Oct 2012 17:42:34 -0400 Received: from mail.linuxfoundation.org ([140.211.169.12]:42248 "EHLO mail.linuxfoundation.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1161224Ab2JXVmc (ORCPT ); Wed, 24 Oct 2012 17:42:32 -0400 Date: Wed, 24 Oct 2012 14:42:30 -0700 From: Andrew Morton To: Stanislav Kinsbursky Cc: serge.hallyn@canonical.com, ebiederm@xmission.com, linux-kernel@vger.kernel.org, xemul@parallels.com, catalin.marinas@arm.com, will.deacon@arm.com, jmorris@namei.org, cmetcalf@tilera.com, joe.korty@ccur.com, dhowells@redhat.com, dledford@redhat.com, viro@zeniv.linux.org.uk, kosaki.motohiro@jp.fujitsu.com, linux-api@vger.kernel.org, serue@us.ibm.com, tglx@linutronix.de, paulmck@linux.vnet.ibm.com, devel@openvz.org, mtk.manpages@gmail.com Subject: Re: [RFC PATCH v8 0/5] IPC: checkpoint/restore in userspace enhancements Message-Id: <20121024144230.a932f2e9.akpm@linux-foundation.org> In-Reply-To: <20121024151555.5642.79086.stgit@localhost.localdomain> References: <20121024151555.5642.79086.stgit@localhost.localdomain> X-Mailer: Sylpheed 3.0.2 (GTK+ 2.20.1; x86_64-pc-linux-gnu) Mime-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: 7bit Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Wed, 24 Oct 2012 19:34:51 +0400 Stanislav Kinsbursky wrote: > This respin of the patch set was significantly reworked. Most part of new API > was replaced by sysctls (by one per messages, semaphores and shared memory), > allowing to preset desired id for next new IPC object. > > This patch set is aimed to provide additional functionality for all IPC > objects, which is required for migration of these objects by user-space > checkpoint/restore utils (CRIU). > > The main problem here was impossibility to set up object id. This patch set > solves the problem by adding new sysctls for preset of desired id for new IPC > object. > > Another problem was to peek messages from queues without deleting them. > This was achived by introducing of new MSG_COPY flag for sys_msgrcv(). If > MSG_COPY flag is set, then msgtyp is interpreted as message number. OK, thanks, I grabbed these. They're not the worst c/r patches I've ever seen ;) I'm not seeing any evidence that anyone else has reviewed or tested these?