From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S935373AbXHNULk (ORCPT ); Tue, 14 Aug 2007 16:11:40 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1756092AbXHNULc (ORCPT ); Tue, 14 Aug 2007 16:11:32 -0400 Received: from smtp2.linux-foundation.org ([207.189.120.14]:55829 "EHLO smtp2.linux-foundation.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1754273AbXHNULb (ORCPT ); Tue, 14 Aug 2007 16:11:31 -0400 Date: Tue, 14 Aug 2007 13:05:58 -0700 From: Andrew Morton To: xemul@openvz.org Cc: devel@openvz.org, linux-kernel@vger.kernel.org, containers@lists.osdl.org, oleg@tv-sign.ru, sukadev@us.ibm.com Subject: Re: [PATCH 5/20] Introduce struct upid Message-Id: <20070814130558.4b5e5e3f.akpm@linux-foundation.org> In-Reply-To: <46BC506F.mailGJ711PNHE@openvz.org> References: <46BC506F.mailGJ711PNHE@openvz.org> X-Mailer: Sylpheed version 2.2.7 (GTK+ 2.8.6; i686-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 X-Mailing-List: linux-kernel@vger.kernel.org On Fri, 10 Aug 2007 15:47:59 +0400 xemul@openvz.org wrote: > struct pid > { > atomic_t count; > @@ -50,6 +50,8 @@ struct pid > /* lists of tasks that use this pid */ > struct hlist_head tasks[PIDTYPE_MAX]; > struct rcu_head rcu; > + int level; > + struct upid numbers[1]; You can make this have size [0] now. It's a gcc extension and is used elsewhere in the kernel.