On Mon, Dec 09, 2013 at 06:10:47PM +0900, Joonsoo Kim wrote:
>fail_migrate_page() isn't used anywhere, so remove it.
>
>Signed-off-by: Joonsoo Kim <iamjoonsoo.kim@xxxxxxx>
>
Reviewed-by: Wanpeng Li <liwanp@xxxxxxxxxxxxxxxxxx>
>diff --git a/include/linux/migrate.h b/include/linux/migrate.h
>index e4671f9..4308018 100644
>--- a/include/linux/migrate.h
>+++ b/include/linux/migrate.h
>@@ -41,9 +41,6 @@ extern int migrate_page(struct address_space *,
> extern int migrate_pages(struct list_head *l, new_page_t x,
> unsigned long private, enum migrate_mode mode, int reason);
>
>-extern int fail_migrate_page(struct address_space *,
>- struct page *, struct page *);
>-
> extern int migrate_prep(void);
> extern int migrate_prep_local(void);
> extern int migrate_vmas(struct mm_struct *mm,
>@@ -83,7 +80,6 @@ static inline int migrate_huge_page_move_mapping(struct address_space *mapping,
>
> /* Possible settings for the migrate_page() method in address_operations */
> #define migrate_page NULL
>-#define fail_migrate_page NULL
>
> #endif /* CONFIG_MIGRATION */
>
>diff --git a/mm/migrate.c b/mm/migrate.c
>index cdafdc0..b595f89 100644
>--- a/mm/migrate.c
>+++ b/mm/migrate.c
>@@ -550,14 +550,6 @@ void migrate_page_copy(struct page *newpage, struct page *page)
> * Migration functions
> ***********************************************************/
>
>-/* Always fail migration. Used for mappings that are not movable */
>-int fail_migrate_page(struct address_space *mapping,
>- struct page *newpage, struct page *page)
>-{
>- return -EIO;
>-}
>-EXPORT_SYMBOL(fail_migrate_page);
>-
> /*
> * Common logic to directly migrate a single page suitable for
> * pages that do not use PagePrivate/PagePrivate2.
>--
>1.7.9.5
>
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