Re: [patch v3 6/6] mm, compaction: terminate async compaction when rescheduling

Mel Gorman
2014-05-07T09:41:12Z

On Tue, May 06, 2014 at 07:22:52PM -0700, David Rientjes wrote:
> Async compaction terminates prematurely when need_resched(), see
> compact_checklock_irqsave(). This can never trigger, however, if the
> cond_resched() in isolate_migratepages_range() always takes care of the
> scheduling.
>
> If the cond_resched() actually triggers, then terminate this pageblock scan for
> async compaction as well.
>
> Signed-off-by: David Rientjes <rientjes@google.com>

Acked-by: Mel Gorman <mgorman@suse.de>

--
Mel Gorman
SUSE Labs