lkml.org 
[lkml]   [2011]   [Dec]   [9]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
/
Date
From
SubjectRe: workqueue_set_max_active(wq, 0)?
Hello, Johannes. :)

On Fri, Dec 09, 2011 at 10:54:42AM +0100, Johannes Berg wrote:
> And then I found workqueue_set_max_active() but passing 0 isn't allowed.
>
> Before I dive in more deeply I figured I'd ask if you think what a good
> way of doing this would be (and whether I'm completely insane) :-)

Hmmm... yeah, actually, that's what wq uses internally to implement
freezable workqueues. It sets max_active to 0 temporarily and waits
for all in-flight works to finish. On thaw, the original value is
restored.

Updating workqueue_set_max_active() to return the old value would be a
nice API update which goes together, I think.

Thanks.

--
tejun


\
 
 \ /
  Last update: 2011-12-09 17:59    [from the cache]
©2003-2011 Jasper Spaans