lkml.org 
[lkml]   [2012]   [Sep]   [12]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
/
SubjectRe: [PATCH v2 2/3] perf: use hrtimer for event multiplexing
From
Date
On Wed, 2012-09-12 at 16:48 +0200, Stephane Eranian wrote:
> On Wed, Sep 12, 2012 at 4:44 PM, Peter Zijlstra <peterz@infradead.org> wrote:
> > On Wed, 2012-09-12 at 16:43 +0200, Stephane Eranian wrote:
> >> The hrtimer_active is used to prevent activating the timer multiple times
> >> in a row.
> >
> > see hrtimer_active(), this should do what you want I think.
>
> I need something that is true even when the hrtimer is not executing
> the callback handler. I guess that may be the different between
> hrtimer_active() vs. hrtimer_running()?

As the comment states, hrtimer_active() returns true if the timer is
either in the tree (enqueued) or running.

hrtimer_callback_running() is true iff the callback is currently
executing.

hrtimer_queued() is true iff the timer is queued.




\
 
 \ /
  Last update: 2012-09-12 17:42    [W:0.042 / U:0.744 seconds]
©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site