vmpressure: do not check for pending work to prevent from new work

because it is racy and it doesn't give us much anyway as schedule_work handles this case already. Signed-off-by: Michal Hocko <[email protected]> Reported-by: Tejun Heo <[email protected]> Cc: Anton Vorontsov <[email protected]> Cc: Johannes Weiner <[email protected]> Cc: KAMEZAWA Hiroyuki <[email protected]> Cc: KOSAKI Motohiro <[email protected]> Cc: Li Zefan <[email protected]> Acked-by: Tejun Heo <[email protected]> Signed-off-by: Andrew Morton <[email protected]> Signed-off-by: Linus Torvalds <[email protected]>
kishon · Jul 31, 2013 · 8e0ed44 · 8e0ed44
1 parent 22f2020
commit 8e0ed44
Showing 1 changed file with 1 addition and 1 deletion.
diff --git a/mm/vmpressure.c b/mm/vmpressure.c
@@ -246,7 +246,7 @@ void vmpressure(gfp_t gfp, struct mem_cgroup *memcg,
 	scanned = vmpr->scanned;
 	spin_unlock(&vmpr->sr_lock);
 
-	if (scanned < vmpressure_win || work_pending(&vmpr->work))
+	if (scanned < vmpressure_win)
 		return;
 	schedule_work(&vmpr->work);
 }