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: Naoya Horiguchi <n-horiguchi@xxxxxxxxxxxxx>
> 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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