From mboxrd@z Thu Jan  1 00:00:00 1970
From: Dario Faggioli <dario.faggioli@citrix.com>
Subject: [PATCH 4/5] xen: RCU: don't let a CPU with a callback
	go idle.
Date: Thu, 27 Jul 2017 10:01:31 +0200
Message-ID: <150114249133.22910.6287911784333237605.stgit@Solace>
References: <150114201043.22910.12807057883146318803.stgit@Solace>
Mime-Version: 1.0
Content-Type: text/plain; charset="utf-8"
Content-Transfer-Encoding: base64
Return-path: <xen-devel-bounces@lists.xen.org>
Received: from mail6.bemta3.messagelabs.com ([195.245.230.39])
 by lists.xenproject.org with esmtp (Exim 4.84_2)
 (envelope-from <raistlin.df@gmail.com>) id 1dadjj-0000I9-I4
 for xen-devel@lists.xenproject.org; Thu, 27 Jul 2017 08:01:35 +0000
Received: by mail-wm0-f66.google.com with SMTP id t138so3800264wmt.4
 for <xen-devel@lists.xenproject.org>; Thu, 27 Jul 2017 01:01:33 -0700 (PDT)
In-Reply-To: <150114201043.22910.12807057883146318803.stgit@Solace>
List-Unsubscribe: <https://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: <https://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.xenproject.org
Cc: Stefano Stabellini <sstabellini@kernel.org>, Wei Liu <wei.liu2@citrix.com>, George Dunlap <George.Dunlap@eu.citrix.com>, Andrew Cooper <andrew.cooper3@citrix.com>, Ian Jackson <ian.jackson@eu.citrix.com>, Tim Deegan <tim@xen.org>, Julien Grall <julien.grall@arm.com>, Jan Beulich <jbeulich@suse.com>
List-Id: xen-devel@lists.xenproject.org
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