Re: [PATCH v2 1/2] sched: Add cond_resched_rcu_lock() helper

From: Paul E. McKenney
Date: Wed May 01 2013 - 13:31:46 EST


On Wed, May 01, 2013 at 06:57:49PM +0200, Peter Zijlstra wrote:
> On Wed, May 01, 2013 at 09:02:18AM -0700, Paul E. McKenney wrote:
> > My guess would be for the case where sched_preempt_enable_no_resched()
> > is followed some time later by cond_resched().
>
> I might hope not.. preempt_enable_no_resched() is nasty and you're likely to be
> hit with a frozen fish of sorts by tglx if you try to use it ;-)

I will stick with my guess, though I agree that if I am correct,
this situation almost certainly predates tglx's Linux-related use of
frozen fish as projectile weapons. ;-)

Thanx, Paul

--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at http://vger.kernel.org/majordomo-info.html
Please read the FAQ at http://www.tux.org/lkml/