diff options
| author | Vlastimil Babka <vbabka@suse.cz> | 2014-12-10 15:43:10 -0800 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2014-12-10 17:41:05 -0800 |
| commit | c05543293e0bf586842844c14fd8c598f494a107 (patch) | |
| tree | f89bf7676c91ca2bbba569a73c1c29e282968152 /mm/memory_hotplug.c | |
| parent | 510f550788b8aba5070c59ec652de8b4ab660852 (diff) | |
| download | lwn-c05543293e0bf586842844c14fd8c598f494a107.tar.gz lwn-c05543293e0bf586842844c14fd8c598f494a107.zip | |
mm, memory_hotplug/failure: drain single zone pcplists
Memory hotplug and failure mechanisms have several places where pcplists
are drained so that pages are returned to the buddy allocator and can be
e.g. prepared for offlining. This is always done in the context of a
single zone, we can reduce the pcplists drain to the single zone, which
is now possible.
The change should make memory offlining due to hotremove or failure
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/memory_hotplug.c')
| -rw-r--r-- | mm/memory_hotplug.c | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/mm/memory_hotplug.c b/mm/memory_hotplug.c index aa0c6e5a3065..9fab10795bea 100644 --- a/mm/memory_hotplug.c +++ b/mm/memory_hotplug.c @@ -1725,7 +1725,7 @@ repeat: if (drain) { lru_add_drain_all(); cond_resched(); - drain_all_pages(NULL); + drain_all_pages(zone); } pfn = scan_movable_pages(start_pfn, end_pfn); @@ -1747,7 +1747,7 @@ repeat: lru_add_drain_all(); yield(); /* drain pcp pages, this is synchronous. */ - drain_all_pages(NULL); + drain_all_pages(zone); /* * dissolve free hugepages in the memory block before doing offlining * actually in order to make hugetlbfs's object counting consistent. |