From mboxrd@z Thu Jan  1 00:00:00 1970
From: George Dunlap <george.dunlap@citrix.com>
Subject: [PATCH 4/8] libxl: Move check for local access to a
	funciton
Date: Wed, 16 Mar 2016 16:09:13 +0000
Message-ID: <1458144557-29070-5-git-send-email-george.dunlap@citrix.com>
References: <1458144557-29070-1-git-send-email-george.dunlap@citrix.com>
Mime-Version: 1.0
Content-Type: text/plain; charset="utf-8"
Content-Transfer-Encoding: base64
Return-path: <xen-devel-bounces@lists.xen.org>
In-Reply-To: <1458144557-29070-1-git-send-email-george.dunlap@citrix.com>
List-Unsubscribe: <http://lists.xen.org/cgi-bin/mailman/options/xen-devel>,
 <mailto:xen-devel-request@lists.xen.org?subject=unsubscribe>
List-Post: <mailto:xen-devel@lists.xen.org>
List-Help: <mailto:xen-devel-request@lists.xen.org?subject=help>
List-Subscribe: <http://lists.xen.org/cgi-bin/mailman/listinfo/xen-devel>,
 <mailto:xen-devel-request@lists.xen.org?subject=subscribe>
Errors-To: xen-devel-bounces@lists.xen.org
Sender: "Xen-devel" <xen-devel-bounces@lists.xen.org>
To: xen-devel@lists.xen.org
Cc: George Dunlap <george.dunlap@eu.citrix.com>, Ian Jackson <ian.jackson@citrix.com>, Wei Liu <wei.liu2@citrix.com>, Roger Pau Monne <roger.pau@citrix.com>
List-Id: xen-devel@lists.xenproject.org
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