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authorVlastimil Babka <vbabka@suse.cz>2014-12-10 15:43:07 -0800
committerLinus Torvalds <torvalds@linux-foundation.org>2014-12-10 17:41:05 -0800
commit510f550788b8aba5070c59ec652de8b4ab660852 (patch)
tree1c3c9cc5cb0dd8dff0d56fd4c2038d46b2dd9b08 /mm/page_alloc.c
parentec25af84b23b6862341b5b5b68d24be3f53b8d2c (diff)
downloadop-kernel-dev-510f550788b8aba5070c59ec652de8b4ab660852.zip
op-kernel-dev-510f550788b8aba5070c59ec652de8b4ab660852.tar.gz
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 <vbabka@suse.cz> Cc: Naoya Horiguchi <n-horiguchi@ah.jp.nec.com> Cc: Mel Gorman <mgorman@suse.de> Cc: Rik van Riel <riel@redhat.com> Cc: Yasuaki Ishimatsu <isimatu.yasuaki@jp.fujitsu.com> Cc: Zhang Yanfei <zhangyanfei@cn.fujitsu.com> Cc: Xishi Qiu <qiuxishi@huawei.com> Cc: Vladimir Davydov <vdavydov@parallels.com> Cc: Joonsoo Kim <iamjoonsoo.kim@lge.com> Cc: Michal Nazarewicz <mina86@mina86.com> Cc: Marek Szyprowski <m.szyprowski@samsung.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'mm/page_alloc.c')
-rw-r--r--mm/page_alloc.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/mm/page_alloc.c b/mm/page_alloc.c
index 13d5796..f3a6bf1 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;
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