From 78d5506e82b21a1a1de68c24182db2c2fe521422 Mon Sep 17 00:00:00 2001 From: Joonsoo Kim Date: Tue, 21 Jan 2014 15:51:18 -0800 Subject: [PATCH] mm/migrate: remove unused function, fail_migrate_page() fail_migrate_page() isn't used anywhere, so remove it. Signed-off-by: Joonsoo Kim Acked-by: Christoph Lameter Reviewed-by: Naoya Horiguchi Reviewed-by: Wanpeng Li Cc: Rafael Aquini Cc: Vlastimil Babka Cc: Wanpeng Li Cc: Mel Gorman Cc: Rik van Riel Cc: Zhang Yanfei Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- include/linux/migrate.h | 4 ---- mm/migrate.c | 8 -------- 2 files changed, 12 deletions(-) diff --git a/include/linux/migrate.h b/include/linux/migrate.h index 2a411bc..84a31ad 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, @@ -84,7 +81,6 @@ 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 8a73d66..a8025be 100644 --- a/mm/migrate.c +++ b/mm/migrate.c @@ -552,14 +552,6 @@ 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. -- 2.7.4