The patch titled
Subject: mm/migration: make isolate_movable_page always defined
has been added to the -mm tree. Its filename is
mm-migration-make-isolate_movable_page-always-defined.patch
This patch should soon appear at
http://ozlabs.org/~akpm/mmots/broken-out/mm-migration-make-isolate_movable_page-always-defined.patch
and later at
http://ozlabs.org/~akpm/mmotm/broken-out/mm-migration-make-isolate_movable_page-always-defined.patch
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------------------------------------------------------
From: Yisheng Xie <xieyisheng1@xxxxxxxxxx>
Subject: mm/migration: make isolate_movable_page always defined
Define isolate_movable_page as a static inline function when
CONFIG_MIGRATION is not enable. It should return -EBUSY here which means
failed to isolate movable pages.
This patch do not have any functional change but prepare for later patch.
Link: http://lkml.kernel.org/r/1485867981-16037-3-git-send-email-ysxie@xxxxxxxxxxx
Signed-off-by: Yisheng Xie <xieyisheng1@xxxxxxxxxx>
Acked-by: Minchan Kim <minchan@xxxxxxxxxx>
Suggested-by: Michal Hocko <mhocko@xxxxxxxxxx>
Cc: Naoya Horiguchi <n-horiguchi@xxxxxxxxxxxxx>
Cc: Vlastimil Babka <vbabka@xxxxxxx>
Cc: Andi Kleen <ak@xxxxxxxxxxxxxxx>
Cc: Hanjun Guo <guohanjun@xxxxxxxxxx>
Cc: Johannes Weiner <hannes@xxxxxxxxxxx>
Cc: Joonsoo Kim <iamjoonsoo.kim@xxxxxxx>
Cc: Mel Gorman <mgorman@xxxxxxxxxxxxxxxxxxx>
Cc: Reza Arbab <arbab@xxxxxxxxxxxxxxxxxx>
Cc: Taku Izumi <izumi.taku@xxxxxxxxxxxxxx>
Cc: Vitaly Kuznetsov <vkuznets@xxxxxxxxxx>
Cc: Xishi Qiu <qiuxishi@xxxxxxxxxx>
Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>
---
include/linux/migrate.h | 2 ++
1 file changed, 2 insertions(+)
diff -puN include/linux/migrate.h~mm-migration-make-isolate_movable_page-always-defined include/linux/migrate.h
--- a/include/linux/migrate.h~mm-migration-make-isolate_movable_page-always-defined
+++ a/include/linux/migrate.h
@@ -56,6 +56,8 @@ static inline int migrate_pages(struct l
free_page_t free, unsigned long private, enum migrate_mode mode,
int reason)
{ return -ENOSYS; }
+static inline int isolate_movable_page(struct page *page, isolate_mode_t mode)
+ { return -EBUSY; }
static inline int migrate_prep(void) { return -ENOSYS; }
static inline int migrate_prep_local(void) { return -ENOSYS; }
_
Patches currently in -mm which might be from xieyisheng1@xxxxxxxxxx are
mm-migration-make-isolate_movable_page-return-int-type.patch
mm-migration-make-isolate_movable_page-always-defined.patch
hwpoison-soft-offlining-for-non-lru-movable-page.patch
mm-hotplug-enable-memory-hotplug-for-non-lru-movable-pages.patch
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