From mboxrd@z Thu Jan  1 00:00:00 1970
From: Peter Zijlstra <peterz@infradead.org>
Subject: Re: [PATCH] RFC: console: hack up console_lock more v2
Date: Thu, 9 May 2019 15:05:04 +0200
Message-ID: <20190509130504.GW2623@hirez.programming.kicks-ass.net>
References: <20190502141643.21080-1-daniel.vetter@ffwll.ch>
 <20190506074553.21464-1-daniel.vetter@ffwll.ch>
 <155739797736.28545.2942646931608459049@skylake-alporthouse-com>
Mime-Version: 1.0
Content-Type: text/plain; charset="utf-8"
Content-Transfer-Encoding: base64
Return-path: <intel-gfx-bounces@lists.freedesktop.org>
Received: from merlin.infradead.org (merlin.infradead.org
 [IPv6:2001:8b0:10b:1231::1])
 by gabe.freedesktop.org (Postfix) with ESMTPS id D87EF89AC6
 for <intel-gfx@lists.freedesktop.org>; Thu,  9 May 2019 13:05:24 +0000 (UTC)
Content-Disposition: inline
In-Reply-To: <155739797736.28545.2942646931608459049@skylake-alporthouse-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: Chris Wilson <chris@chris-wilson.co.uk>
Cc: Petr Mladek <pmladek@suse.com>, John Ogness <john.ogness@linutronix.de>, Daniel Vetter <daniel.vetter@ffwll.ch>, Intel Graphics Development <intel-gfx@lists.freedesktop.org>, Will Deacon <will.deacon@arm.com>, linux-kernel@vger.kernel.org, Steven Rostedt <rostedt@goodmis.org>, Sergey Senozhatsky <sergey.senozhatsky@gmail.com>, Ingo Molnar <mingo@redhat.com>, Daniel Vetter <daniel.vetter@intel.com>
List-Id: intel-gfx@lists.freedesktop.org
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=