Re: PATCH? hrtimer_wakeup: fix a theoretical race wrt rt_mutex_slowlock()

[Oleg Nesterov]

On 11/06, Steven Rostedt wrote:
> 
> Acked-by: Steven Rostedt <rostedt@xxxxxxxxxxx>

Thanks.

But on the other hand we probably have a similar code (set condition +
wake_up_process()) in other places too, and __wake_up(wait_queue_head_t)
has (in theory) the same problem. Probably we can add something like

	smp_wmb_unless_spin_lock_implies_memory_barrier_on_this_arch()

somewhere in try_to_wake_up(). I dunno.

Oleg.

-
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/