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.
Hello, I think that same logic would be helpful to cond_resched() in isolatate_freepages(). And, isolate_freepages() doesn't have exit logic when it find zone_lock contention. I think that fixing it is also helpful. Thanks. -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
