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| 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-failure.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-failure.c')
| -rw-r--r-- | mm/memory-failure.c | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/mm/memory-failure.c b/mm/memory-failure.c index 851b4d7eef3a..84e7ded04321 100644 --- a/mm/memory-failure.c +++ b/mm/memory-failure.c @@ -233,7 +233,7 @@ void shake_page(struct page *p, int access) lru_add_drain_all(); if (PageLRU(p)) return; - drain_all_pages(NULL); + drain_all_pages(page_zone(p)); if (PageLRU(p) || is_free_buddy_page(p)) return; } @@ -1661,7 +1661,7 @@ static int __soft_offline_page(struct page *page, int flags) if (!is_free_buddy_page(page)) lru_add_drain_all(); if (!is_free_buddy_page(page)) - drain_all_pages(NULL); + drain_all_pages(page_zone(page)); SetPageHWPoison(page); if (!is_free_buddy_page(page)) pr_info("soft offline: %#lx: page leaked\n", |