Messages in this thread | | | Date | Wed, 11 Sep 2013 20:05:42 +0200 | From | Peter Zijlstra <> | Subject | Re: [PATCH 2/7] sched: Add NEED_RESCHED to the preempt_count |
| |
On Wed, Sep 11, 2013 at 09:35:08AM -0700, Andy Lutomirski wrote: > I bet that this improves cross-cpu wakeup latency, too -- the old code > would presumably wake up the cpu and then immediately interrupt it.
Yeah,. its what clued Mike in to there being a problem.
> It might be nice to rename one or both of need_resched and > test_need_resched, though -- the difference is somewhat inscrutable.
I agreed, I've just been unable to come up with anything sane.
The best I could come up with is renaming {set,clear,test}_need_resched() to {}_tif_need_resched(), so we then end up with test_tif_need_resched(), which is slightly more different from need_resched().
Ideas?
| |