The patch titled
Subject: mm/balloon_compaction.c: enqueue zero page to balloon device
has been added to the -mm tree. Its filename is
mm-balloon-enqueue-zero-page-to-balloon-device.patch
This patch should soon appear at
http://ozlabs.org/~akpm/mmots/broken-out/mm-balloon-enqueue-zero-page-to-balloon-device.patch
and later at
http://ozlabs.org/~akpm/mmotm/broken-out/mm-balloon-enqueue-zero-page-to-balloon-device.patch
Before you just go and hit "reply", please:
a) Consider who else should be cc'ed
b) Prefer to cc a suitable mailing list as well
c) Ideally: find the original patch on the mailing list and do a
reply-to-all to that, adding suitable additional cc's
*** Remember to use Documentation/SubmitChecklist when testing your code ***
The -mm tree is included into linux-next and is updated
there every 3-4 working days
------------------------------------------------------
From: "zhenwei.pi" <zhenwei.pi@xxxxxxxxxxxxxxx>
Subject: 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@xxxxxxxxxxxxxxx
Signed-off-by: zhenwei.pi <zhenwei.pi@xxxxxxxxxxxxxxx>
Cc: Gioh Kim <gi-oh.kim@xxxxxxxxxxxxxxxx>
Cc: Vlastimil Babka <vbabka@xxxxxxx>
Cc: Minchan Kim <minchan@xxxxxxxxxx>
Cc: Konstantin Khlebnikov <k.khlebnikov@xxxxxxxxxxx>
Cc: Rafael Aquini <aquini@xxxxxxxxxx>
Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>
---
mm/balloon_compaction.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff -puN mm/balloon_compaction.c~mm-balloon-enqueue-zero-page-to-balloon-device mm/balloon_compaction.c
--- a/mm/balloon_compaction.c~mm-balloon-enqueue-zero-page-to-balloon-device
+++ a/mm/balloon_compaction.c
@@ -24,7 +24,7 @@ struct page *balloon_page_enqueue(struct
{
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;
_
Patches currently in -mm which might be from zhenwei.pi@xxxxxxxxxxxxxxx are
mm-balloon-enqueue-zero-page-to-balloon-device.patch
--
To unsubscribe from this list: send the line "unsubscribe mm-commits" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at http://vger.kernel.org/majordomo-info.html
