From mboxrd@z Thu Jan  1 00:00:00 1970
Return-Path: <linux-kernel-owner@vger.kernel.org>
Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand
	id S1755599AbcDLC7F (ORCPT <rfc822;w@1wt.eu>);
	Mon, 11 Apr 2016 22:59:05 -0400
Received: from mail-pf0-f196.google.com ([209.85.192.196]:33783 "EHLO
	mail-pf0-f196.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org
	with ESMTP id S1752199AbcDLC7D (ORCPT
	<rfc822;linux-kernel@vger.kernel.org>);
	Mon, 11 Apr 2016 22:59:03 -0400
Date: Tue, 12 Apr 2016 10:58:59 +0800
From: Simon Guo <wei.guo.simon@gmail.com>
To: Michael Ellerman <mpe@ellerman.id.au>
Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org>,
        Paul Mackerras <paulus@samba.org>, Kees Cook <keescook@chromium.org>,
        Rashmica Gupta <rashmicy@gmail.com>,
        Simon Guo <simonguo@linux.vnet.ibm.com>, linuxppc-dev@lists.ozlabs.org,
        linux-kernel@vger.kernel.org,
        Laurent Dufour <ldufour@linux.vnet.ibm.com>
Subject: Re: [RESEND][PATCH v2] powerpc: Export
 thread_struct.used_vr/used_vsr to user space
Message-ID: <20160412025859.GB7322@simonLocalRHEL7.x64>
References: <20160406070012.GA11647@simonLocalRHEL7.x64>
MIME-Version: 1.0
Content-Type: text/plain; charset=us-ascii
Content-Disposition: inline
In-Reply-To: <20160406070012.GA11647@simonLocalRHEL7.x64>
User-Agent: Mutt/1.5.21 (2010-09-15)
Sender: linux-kernel-owner@vger.kernel.org
List-ID: <linux-kernel.vger.kernel.org>
X-Mailing-List: linux-kernel@vger.kernel.org

Hi Michael,
On Wed, Apr 06, 2016 at 03:00:12PM +0800, Simon Guo wrote:
> These 2 fields track whether user process has used Altivec/VSX
> registers or not. They are used by kernel to setup signal frame
> on user stack correctly regarding vector part.
> 
> CRIU(Checkpoint and Restore In User space) builds signal frame
> for restored process. It will need this export information to
> setup signal frame correctly. And CRIU will need to restore these
> 2 fields for the restored process.
> 
> Signed-off-by: Simon Guo <wei.guo.simon@gmail.com>
> Reviewed-by: Laurent Dufour <ldufour@linux.vnet.ibm.com>
> ---

Is there any chance that this patch can be merged upstream soon? 
The corresponding work of CRIU has to follow after that.

Thanks,
Simon