linux-kernel - [RFC PATCH 0/4] workqueue: Introduce low-level unbound wq sysfs cpumask

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Date:	Thu, 24 Apr 2014 16:37:32 +0200
From:	Frederic Weisbecker <fweisbec@...il.com>
To:	LKML <linux-kernel@...r.kernel.org>
Cc:	Frederic Weisbecker <fweisbec@...il.com>,
	Christoph Lameter <cl@...ux.com>,
	Kevin Hilman <khilman@...aro.org>,
	Lai Jiangshan <laijs@...fujitsu.com>,
	Mike Galbraith <bitbucket@...ine.de>,
	"Paul E. McKenney" <paulmck@...ux.vnet.ibm.com>,
	Tejun Heo <tj@...nel.org>,
	Viresh Kumar <viresh.kumar@...aro.org>
Subject: [RFC PATCH 0/4] workqueue: Introduce low-level unbound wq sysfs cpumask

Hi,

So this new version takes another direction suggested by Tejun.
Now we have a cpumask at the root of the workqueue directory
to bound the affinity of all unbound workqueues.

It's an early release as more plumbing is required. Most notably:

* Drop last patch and integrate Lai's instead to support
apply_workqueue_attrs() on ordered workqueues: https://lkml.org/lkml/2014/4/15/181

* Handle cpumask value expansion (in fact the per wq cpumask must be
stored seperately than the effective cpumask to handle that correctly).
I should take care of that in the next version.

But I prefer to post the current state now in case I'm wandering off.

git://git.kernel.org/pub/scm/linux/kernel/git/frederic/linux-dynticks.git
	core/workqueue-v3

Thanks,
	Frederic
---

Frederic Weisbecker (4):
      workqueue: Create low-level unbound workqueues cpumask
      workqueue: Split apply attrs code from its locking
      workqueue: Allow modifying low level unbound workqueue cpumask
      workqueue: Handle ordered workqueues on cpumask_unbounds change


 kernel/workqueue.c | 219 ++++++++++++++++++++++++++++++++++++++++++++---------
 1 file changed, 185 insertions(+), 34 deletions(-)
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