From mboxrd@z Thu Jan  1 00:00:00 1970
From: Dave Gordon <david.s.gordon@intel.com>
Subject: Re: [CI-ping 15/15] drm/i915: Late request
 cancellations are harmful
Date: Tue, 19 Apr 2016 13:35:32 +0100
Message-ID: <57162614.6030507@intel.com>
References: <1460491389-8602-1-git-send-email-chris@chris-wilson.co.uk>
 <1460491389-8602-15-git-send-email-chris@chris-wilson.co.uk>
 <20160413095721.GR2510@phenom.ffwll.local> <570E55DF.6070004@Intel.com>
Mime-Version: 1.0
Content-Type: text/plain; charset="utf-8"; Format="flowed"
Content-Transfer-Encoding: base64
Return-path: <intel-gfx-bounces@lists.freedesktop.org>
Received: from mga11.intel.com (mga11.intel.com [192.55.52.93])
 by gabe.freedesktop.org (Postfix) with ESMTP id 3E5276E75F
 for <intel-gfx@lists.freedesktop.org>; Tue, 19 Apr 2016 12:35:34 +0000 (UTC)
In-Reply-To: <570E55DF.6070004@Intel.com>
List-Unsubscribe: <https://lists.freedesktop.org/mailman/options/intel-gfx>,
 <mailto:intel-gfx-request@lists.freedesktop.org?subject=unsubscribe>
List-Archive: <https://lists.freedesktop.org/archives/intel-gfx>
List-Post: <mailto:intel-gfx@lists.freedesktop.org>
List-Help: <mailto:intel-gfx-request@lists.freedesktop.org?subject=help>
List-Subscribe: <https://lists.freedesktop.org/mailman/listinfo/intel-gfx>,
 <mailto:intel-gfx-request@lists.freedesktop.org?subject=subscribe>
Errors-To: intel-gfx-bounces@lists.freedesktop.org
Sender: "Intel-gfx" <intel-gfx-bounces@lists.freedesktop.org>
To: "Harrison, John C" <john.c.harrison@intel.com>
Cc: intel-gfx@lists.freedesktop.org
List-Id: intel-gfx@lists.freedesktop.org
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