From 9fb4b7cc0724f178d4b24a2a566ea1e7cb120b82 Mon Sep 17 00:00:00 2001 From: Bob Liu Date: Thu, 12 Jan 2012 17:18:48 -0800 Subject: page_cgroup: add helper function to get swap_cgroup There are multiple places which need to get the swap_cgroup address, so add a helper function: static struct swap_cgroup *swap_cgroup_getsc(swp_entry_t ent, struct swap_cgroup_ctrl **ctrl); to simplify the code. Signed-off-by: Bob Liu Acked-by: Michal Hocko Acked-by: KAMEZAWA Hiroyuki Cc: Johannes Weiner Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- include/linux/page_cgroup.h | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) (limited to 'include/linux/page_cgroup.h') diff --git a/include/linux/page_cgroup.h b/include/linux/page_cgroup.h index aaa60da8783..1153095ee45 100644 --- a/include/linux/page_cgroup.h +++ b/include/linux/page_cgroup.h @@ -149,7 +149,7 @@ static inline void __init page_cgroup_init_flatmem(void) extern unsigned short swap_cgroup_cmpxchg(swp_entry_t ent, unsigned short old, unsigned short new); extern unsigned short swap_cgroup_record(swp_entry_t ent, unsigned short id); -extern unsigned short lookup_swap_cgroup(swp_entry_t ent); +extern unsigned short lookup_swap_cgroup_id(swp_entry_t ent); extern int swap_cgroup_swapon(int type, unsigned long max_pages); extern void swap_cgroup_swapoff(int type); #else @@ -161,7 +161,7 @@ unsigned short swap_cgroup_record(swp_entry_t ent, unsigned short id) } static inline -unsigned short lookup_swap_cgroup(swp_entry_t ent) +unsigned short lookup_swap_cgroup_id(swp_entry_t ent) { return 0; } -- cgit v1.2.3-70-g09d2