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authorMinchan Kim <minchan.kim@gmail.com>2010-05-24 14:31:59 -0700
committerLinus Torvalds <torvalds@linux-foundation.org>2010-05-25 08:06:57 -0700
commite13861d822f8f443ca0c020ea8fc2dc01039cd63 (patch)
tree0e1ccaa6a2d682f7636b9d5ef5d4c73a28074988 /include/linux/migrate.h
parent4b50dc26a0a25a9d1998d206e1f7d849aa78063f (diff)
mm: remove return value of putback_lru_pages()
putback_lru_page() never can fail. So it doesn't matter count of "the number of pages put back". In addition, users of this functions don't use return value. Let's remove unnecessary code. Signed-off-by: Minchan Kim <minchan.kim@gmail.com> Reviewed-by: Rik van Riel <riel@redhat.com> Reviewed-by: KOSAKI Motohiro <kosaki.motohiro@jp.fujitsu.com> Reviewed-by: KAMEZAWA Hiroyuki <kamezawa.hiroyu@jp.fujitsu.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'include/linux/migrate.h')
-rw-r--r--include/linux/migrate.h4
1 files changed, 2 insertions, 2 deletions
diff --git a/include/linux/migrate.h b/include/linux/migrate.h
index 7f085c97c79..7a07b17d27c 100644
--- a/include/linux/migrate.h
+++ b/include/linux/migrate.h
@@ -9,7 +9,7 @@ typedef struct page *new_page_t(struct page *, unsigned long private, int **);
#ifdef CONFIG_MIGRATION
#define PAGE_MIGRATION 1
-extern int putback_lru_pages(struct list_head *l);
+extern void putback_lru_pages(struct list_head *l);
extern int migrate_page(struct address_space *,
struct page *, struct page *);
extern int migrate_pages(struct list_head *l, new_page_t x,
@@ -25,7 +25,7 @@ extern int migrate_vmas(struct mm_struct *mm,
#else
#define PAGE_MIGRATION 0
-static inline int putback_lru_pages(struct list_head *l) { return 0; }
+static inline void putback_lru_pages(struct list_head *l) {}
static inline int migrate_pages(struct list_head *l, new_page_t x,
unsigned long private, int offlining) { return -ENOSYS; }