The patch titled
Subject: mm/migration: make isolate_movable_page() return int type
has been added to the -mm tree. Its filename is
mm-migration-make-isolate_movable_page-return-int-type-v6.patch
This patch should soon appear at
http://ozlabs.org/~akpm/mmots/broken-out/mm-migration-make-isolate_movable_page-return-int-type-v6.patch
and later at
http://ozlabs.org/~akpm/mmotm/broken-out/mm-migration-make-isolate_movable_page-return-int-type-v6.patch
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------------------------------------------------------
From: Yisheng Xie <xieyisheng1@xxxxxxxxxx>
Subject: mm/migration: make isolate_movable_page() return int type
Link: http://lkml.kernel.org/r/1486108770-630-2-git-send-email-xieyisheng1@xxxxxxxxxx
Signed-off-by: Yisheng Xie <xieyisheng1@xxxxxxxxxx>
Cc: Michal Hocko <mhocko@xxxxxxxxxx>
Cc: Minchan Kim <minchan@xxxxxxxxxx>
Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>
---
mm/migrate.c | 7 ++-----
1 file changed, 2 insertions(+), 5 deletions(-)
diff -puN mm/migrate.c~mm-migration-make-isolate_movable_page-return-int-type-v6 mm/migrate.c
--- a/mm/migrate.c~mm-migration-make-isolate_movable_page-return-int-type-v6
+++ a/mm/migrate.c
@@ -76,7 +76,6 @@ int migrate_prep_local(void)
int isolate_movable_page(struct page *page, isolate_mode_t mode)
{
- int ret = -EBUSY;
struct address_space *mapping;
/*
@@ -96,10 +95,8 @@ int isolate_movable_page(struct page *pa
* assumes anybody doesn't touch PG_lock of newly allocated page
* so unconditionally grapping the lock ruins page's owner side.
*/
- if (unlikely(!__PageMovable(page))) {
- ret = -EINVAL;
+ if (unlikely(!__PageMovable(page)))
goto out_putpage;
- }
/*
* As movable pages are not isolated from LRU lists, concurrent
* compaction threads can race against page migration functions
@@ -135,7 +132,7 @@ out_no_isolated:
out_putpage:
put_page(page);
out:
- return ret;
+ return -EBUSY;
}
/* It should be called on page which is PG_movable */
_
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-return-int-type-v6.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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