[PATCH] mm: cma: reclaim only clean pages

[Minchan Kim]

It is possible for pages to be dirty after the check
in reclaim_clean_pages_from_list so that it ends up
paging out the pages, which is never what we want for speed up.

This patch fixes it.

Cc: Marek Szyprowski <m.szyprowski@xxxxxxxxxxx>
Cc: Michal Nazarewicz <mina86@xxxxxxxxxx>
Cc: Rik van Riel <riel@xxxxxxxxxx>
Cc: Mel Gorman <mgorman@xxxxxxx>
Signed-off-by: Minchan Kim <minchan@xxxxxxxxxx>
---
 mm/vmscan.c |    2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/mm/vmscan.c b/mm/vmscan.c
index f8f56f8..1ee4b69 100644
--- a/mm/vmscan.c
+++ b/mm/vmscan.c
@@ -694,7 +694,7 @@ static unsigned long shrink_page_list(struct list_head *page_list,
 		struct address_space *mapping;
 		struct page *page;
 		int may_enter_fs;
-		enum page_references references = PAGEREF_RECLAIM;
+		enum page_references references = PAGEREF_RECLAIM_CLEAN;
 
 		cond_resched();
 
-- 
1.7.9.5

-- 
Kind regards,
Minchan Kim
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