On 28/06/2013 03:29, Cody P Schafer wrote:

On 06/27/2013 05:25 PM, Cody P Schafer wrote:

quoted

On 06/24/2013 12:28 AM, Eliezer Tamir wrote:

quoted

select/poll busy-poll support.
...

I'm seeing warnings about using smp_processor_id() while preemptable
(log included below) due to this patch. I expect the use of
ll_end_time() -> sched_clock() here is triggering this.

Apologies if this has already been noted.

To be clear, given how sched_time() is used here the BUG appears
invalid, but we need a way to mark this as OK for the smp_processor_id()
checks so we don't get BUG spam.

Thanks for reporting this.

-Eliezer