forked from Minki/linux
memory_hotplug: drop spurious calls to flush_scheduled_work()
lru_add_drain_all() uses schedule_on_each_cpu() which is synchronous. There is no reason to call flush_scheduled_work() after lru_add_drain_all(). Drop the spurious calls. This is to prepare for the deprecation and removal of flush_scheduled_work(). Signed-off-by: Tejun Heo <tj@kernel.org> Acked-by: KAMEZAWA Hiroyuki <kamezawa.hiroyu@jp.fujitsu.com> Reviewed-by: Minchan Kim <minchan.kim@gmail.com> Acked-by: Mel Gorman <mel@csn.ul.ie>
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@ -840,7 +840,6 @@ repeat:
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ret = 0;
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if (drain) {
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lru_add_drain_all();
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flush_scheduled_work();
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cond_resched();
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drain_all_pages();
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}
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@ -862,7 +861,6 @@ repeat:
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}
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/* drain all zone's lru pagevec, this is asyncronous... */
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lru_add_drain_all();
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flush_scheduled_work();
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yield();
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/* drain pcp pages , this is synchrouns. */
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drain_all_pages();
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