[PATCH]mm/compation.c: checking page in lru twice

[Figo.zhang]

in isolate_migratepages() have check page in LRU twice, the next one
at _isolate_lru_page(). 

Signed-off-by: Figo.zhang <figo1802@xxxxxxxxx> 
---

mm/compaction.c |    3 ---
 1 files changed, 0 insertions(+), 3 deletions(-)

diff --git a/mm/compaction.c b/mm/compaction.c
index 021a296..ac605cb 100644
--- a/mm/compaction.c
+++ b/mm/compaction.c
@@ -321,9 +321,6 @@ static unsigned long isolate_migratepages(struct zone *zone,
 			continue;
 		}
 
-		if (!PageLRU(page))
-			continue;
-
 		/*
 		 * PageLRU is set, and lru_lock excludes isolation,
 		 * splitting and collapsing (collapsing has already


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