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 <nishimura@mxp.nes.nec.co.jp>
Cc: Balbir Singh <balbir@linux.vnet.ibm.com>
Acked-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>
diff --git a/include/linux/swap.h b/include/linux/swap.h
index 0cedf31..dca9b99 100644
--- a/include/linux/swap.h
+++ b/include/linux/swap.h
@@ -423,12 +423,6 @@
#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)
{