diff options
| author | Vlastimil Babka <vbabka@suse.cz> | 2014-12-10 15:43:04 -0800 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2014-12-10 17:41:05 -0800 |
| commit | ec25af84b23b6862341b5b5b68d24be3f53b8d2c (patch) | |
| tree | 9a65520b903949e04b901f80f1cbe04dd6728d82 | |
| parent | 93481ff0e5a0c7636359a7ee52248856da5e7859 (diff) | |
mm, page_isolation: drain single zone pcplists
When setting MIGRATETYPE_ISOLATE on a pageblock, pcplists are drained to
have a better chance that all pages will be successfully isolated and
not left in the per-cpu caches. Since isolation is always concerned
with a single zone, we can reduce the pcplists drain to the single zone,
which is now possible.
The change should make memory isolation 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>
| -rw-r--r-- | mm/page_isolation.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/mm/page_isolation.c b/mm/page_isolation.c index f2452e5116b2..72f5ac381ab3 100644 --- a/mm/page_isolation.c +++ b/mm/page_isolation.c @@ -68,7 +68,7 @@ out: spin_unlock_irqrestore(&zone->lock, flags); if (!ret) - drain_all_pages(NULL); + drain_all_pages(zone); return ret; } |