Re: [PATCH 2/3 V8] workqueue: Create low-level unbound workqueues cpumask

[Tejun Heo <tj@kernel.org>]

On Mon, Apr 27, 2015 at 05:58:39PM +0800, Lai Jiangshan wrote:
> From: Frederic Weisbecker <fweisbec@gmail.com>
> 
> Create a cpumask that limit the affinity of all unbound workqueues.
> This cpumask is controlled though a file at the root of the workqueue
> sysfs directory.
> 
> It works on a lower-level than the per WQ_SYSFS workqueues cpumask files
> such that the effective cpumask applied for a given unbound workqueue is
> the intersection of /sys/devices/virtual/workqueue/$WORKQUEUE/cpumask and
> the new /sys/devices/virtual/workqueue/cpumask file.
> 
> This patch implements the basic infrastructure and the read interface.
> wq_unbound_cpumask is initially set to cpu_possible_mask.
> 
> Cc: Christoph Lameter <cl@linux.com>
> Cc: Kevin Hilman <khilman@linaro.org>
> Cc: Lai Jiangshan <laijs@cn.fujitsu.com>
> Cc: Mike Galbraith <bitbucket@online.de>
> Cc: Paul E. McKenney <paulmck@linux.vnet.ibm.com>
> Cc: Tejun Heo <tj@kernel.org>
> Cc: Viresh Kumar <viresh.kumar@linaro.org>
> Signed-off-by: Frederic Weisbecker <fweisbec@gmail.com>
> Signed-off-by: Lai Jiangshan <laijs@cn.fujitsu.com>

Applied 1-2 to wq/for-4.2 w/ minor comment updates.

Thanks.

-- 
tejun