From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1754697AbbAWAGi (ORCPT ); Thu, 22 Jan 2015 19:06:38 -0500 Received: from mail.linuxfoundation.org ([140.211.169.12]:55123 "EHLO mail.linuxfoundation.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1754359AbbAWAGf (ORCPT ); Thu, 22 Jan 2015 19:06:35 -0500 Date: Thu, 22 Jan 2015 16:06:33 -0800 From: Andrew Morton To: David Vrabel Cc: , , "Jenny Herbert" Subject: Re: [PATCH 2/2] mm: add 'foreign' alias for the 'pinned' page flag Message-Id: <20150122160633.350f22805e20c0c432755e02@linux-foundation.org> In-Reply-To: <1421682443-20509-3-git-send-email-david.vrabel@citrix.com> References: <1421682443-20509-1-git-send-email-david.vrabel@citrix.com> <1421682443-20509-3-git-send-email-david.vrabel@citrix.com> X-Mailer: Sylpheed 3.4.1 (GTK+ 2.24.23; 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 Mon, 19 Jan 2015 15:47:23 +0000 David Vrabel wrote: > From: Jenny Herbert > > The foreign page flag will be used by Xen guests to mark pages that > have grant mappings of frames from other (foreign) guests. > > The foreign flag is an alias for the existing (Xen-specific) pinned > flag. This is safe because pinned is only used on pages used for page > tables and these cannot also be foreign. > Acked-by: Andrew Morton