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| author | zhenwei.pi <zhenwei.pi@youruncloud.com> | 2017-07-10 15:49:47 -0700 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2017-07-10 16:32:32 -0700 |
| commit | bb01b64cfab7c22f3848cb73dc0c2b46b8d38499 (patch) | |
| tree | 8e1d7c7dd14bb7567f28012546c7a1c80f72d3b8 | |
| parent | e048cb32f69038aa1c8f11e5c1b331be4181659d (diff) | |
| download | op-kernel-dev-bb01b64cfab7c22f3848cb73dc0c2b46b8d38499.zip op-kernel-dev-bb01b64cfab7c22f3848cb73dc0c2b46b8d38499.tar.gz | |
mm/balloon_compaction.c: enqueue zero page to balloon device
presently pages in the balloon device have random value, and these pages
will be scanned by ksmd on the host. They usually cannot be merged.
Enqueue zero pages will resolve this problem.
Link: http://lkml.kernel.org/r/1498698637-26389-1-git-send-email-zhenwei.pi@youruncloud.com
Signed-off-by: zhenwei.pi <zhenwei.pi@youruncloud.com>
Cc: Gioh Kim <gi-oh.kim@profitbricks.com>
Cc: Vlastimil Babka <vbabka@suse.cz>
Cc: Minchan Kim <minchan@kernel.org>
Cc: Konstantin Khlebnikov <khlebnikov@yandex-team.ru>
Cc: Rafael Aquini <aquini@redhat.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
| -rw-r--r-- | mm/balloon_compaction.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/mm/balloon_compaction.c b/mm/balloon_compaction.c index da91df5..9075aa5 100644 --- a/mm/balloon_compaction.c +++ b/mm/balloon_compaction.c @@ -24,7 +24,7 @@ struct page *balloon_page_enqueue(struct balloon_dev_info *b_dev_info) { unsigned long flags; struct page *page = alloc_page(balloon_mapping_gfp_mask() | - __GFP_NOMEMALLOC | __GFP_NORETRY); + __GFP_NOMEMALLOC | __GFP_NORETRY | __GFP_ZERO); if (!page) return NULL; |
