From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S932117AbdK0QtB (ORCPT ); Mon, 27 Nov 2017 11:49:01 -0500 Received: from mail-qt0-f196.google.com ([209.85.216.196]:42347 "EHLO mail-qt0-f196.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752797AbdK0Qs7 (ORCPT ); Mon, 27 Nov 2017 11:48:59 -0500 X-Google-Smtp-Source: AGs4zMavfwR4jzIXvHSEBj4cRa1I2E/9WdcjEM4qp8fjz0NHdOr4Y09JT/Jv+qCseSYbHgSkAPKkIA== Date: Mon, 27 Nov 2017 08:48:55 -0800 From: Tejun Heo To: Prateek Sood Cc: peterz@infradead.org, longman@redhat.com, lizefan@huawei.com, mingo@kernel.org, boqun.feng@gmail.com, tglx@linutronix.de, cgroups@vger.kernel.org, sramana@codeaurora.org, linux-kernel@vger.kernel.org, clingutla@codeaurora.org Subject: Re: [PATCH v3 0/2] Invert cpu_hotplug_lock and cpuset_mutex locking order. Message-ID: <20171127164848.GF983427@devbig577.frc2.facebook.com> References: <20171115103742.xt7muaq2dfrs2cyd@hirez.programming.kicks-ass.net> <1510755615-25906-1-git-send-email-prsood@codeaurora.org> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <1510755615-25906-1-git-send-email-prsood@codeaurora.org> User-Agent: Mutt/1.5.21 (2010-09-15) Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Wed, Nov 15, 2017 at 07:50:13PM +0530, Prateek Sood wrote: > This patch does following > 1- Remove circular dependency deadlock by inverting order of > cpu_hotplug_lock and cpuset_mutex. > 2- Make cpuset_hotplug_workfn() synchronous for cpu hotplug path. > For memory hotplug path it still gets queued as a work item. > > Prateek Sood (2): > cgroup/cpuset: remove circular dependency deadlock > cpuset: Make cpuset hotplug synchronous Applied to cgroup/for-4.15-fixes. Thanks. -- tejun