From 510f550788b8aba5070c59ec652de8b4ab660852 Mon Sep 17 00:00:00 2001 From: Vlastimil Babka Date: Wed, 10 Dec 2014 15:43:07 -0800 Subject: mm, cma: drain single zone pcplists CMA allocation drains pcplists so that pages can merge back to buddy allocator. Since it operates on a single zone, we can reduce the pcplists drain to the single zone, which is now possible. The change should make CMA allocations faster and not disturbing unrelated pcplists anymore. Signed-off-by: Vlastimil Babka Cc: Naoya Horiguchi Cc: Mel Gorman Cc: Rik van Riel Cc: Yasuaki Ishimatsu Cc: Zhang Yanfei Cc: Xishi Qiu Cc: Vladimir Davydov Cc: Joonsoo Kim Cc: Michal Nazarewicz Cc: Marek Szyprowski Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- mm/page_alloc.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) (limited to 'mm/page_alloc.c') diff --git a/mm/page_alloc.c b/mm/page_alloc.c index 13d5796de8f3..f3a6bf12cbc1 100644 --- a/mm/page_alloc.c +++ b/mm/page_alloc.c @@ -6416,7 +6416,7 @@ int alloc_contig_range(unsigned long start, unsigned long end, */ lru_add_drain_all(); - drain_all_pages(NULL); + drain_all_pages(cc.zone); order = 0; outer_start = start; -- cgit v1.2.3