Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1753166AbZIYIsH (ORCPT ); Fri, 25 Sep 2009 04:48:07 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1752979AbZIYIsC (ORCPT ); Fri, 25 Sep 2009 04:48:02 -0400 Received: from mail.crca.org.au ([67.207.131.56]:58699 "EHLO crca.org.au" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752865AbZIYIsB (ORCPT ); Fri, 25 Sep 2009 04:48:01 -0400 X-Bogosity: Ham, spamicity=0.000000 Message-ID: <4ABC83E2.7050300@crca.org.au> Date: Fri, 25 Sep 2009 18:48:34 +1000 From: Nigel Cunningham User-Agent: Thunderbird 2.0.0.21 (X11/20090409) MIME-Version: 1.0 To: KAMEZAWA Hiroyuki CC: LKML , "linux-mm@kvack.org" Subject: Re: No more bits in vm_area_struct's vm_flags. References: <4AB9A0D6.1090004@crca.org.au> <20090924100518.78df6b93.kamezawa.hiroyu@jp.fujitsu.com> <4ABC80B0.5010100@crca.org.au> <20090925174009.79778649.kamezawa.hiroyu@jp.fujitsu.com> In-Reply-To: <20090925174009.79778649.kamezawa.hiroyu@jp.fujitsu.com> X-Enigmail-Version: 0.95.7 Content-Type: text/plain; charset=ISO-8859-1 Content-Transfer-Encoding: 7bit Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 1096 Lines: 31 Hi. KAMEZAWA Hiroyuki wrote: > On Fri, 25 Sep 2009 18:34:56 +1000 > Nigel Cunningham wrote: > >> Hi. >> >> KAMEZAWA Hiroyuki wrote: >>>> I have some code in TuxOnIce that needs a bit too (explicitly mark the >>>> VMA as needing to be atomically copied, for GEM objects), and am not >>>> sure what the canonical way to proceed is. Should a new unsigned long be >>>> added? The difficulty I see with that is that my flag was used in >>>> shmem_file_setup's flags parameter (drm_gem_object_alloc), so that >>>> function would need an extra parameter too.. >>> Hmm, how about adding vma->vm_flags2 ? >> The difficulty there is that some functions pass these flags as arguments. >> > Ah yes. But I wonder some special flags, which is rarey used, can be moved > to vm_flags2... Ah, of course. That makes sense. Regards, Nigel -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/