memcg: remove mem_cgroup_cache_charge_swapin()

mem_cgroup_cache_charge_swapin() isn't used any more, so remove no-op
definition of it in header file.

Signed-off-by: Daisuke Nishimura <[email protected]>
Cc: Balbir Singh <[email protected]>
Acked-by: KAMEZAWA Hiroyuki <[email protected]>
Signed-off-by: Andrew Morton <[email protected]>
Signed-off-by: Linus Torvalds <[email protected]>

diff --git a/include/linux/swap.h b/include/linux/swap.h
index 0cedf31af0b0ed4cd230c2eb9cc2cf1a8c5e95af..dca9b9999aebf5a1bd3f12dcfd47ea8ba2addd8e 100644 (file)
--- a/include/linux/swap.h
+++ b/include/linux/swap.h
@@ -423,12 +423,6 @@ static inline swp_entry_t get_swap_page(void)
 #define has_swap_token(x) 0
 #define disable_swap_token() do { } while(0)
 
-static inline int mem_cgroup_cache_charge_swapin(struct page *page,
-                       struct mm_struct *mm, gfp_t mask, bool locked)
-{
-       return 0;
-}
-
 static inline void
 mem_cgroup_uncharge_swapcache(struct page *page, swp_entry_t ent)
 {