diff options
author | Johannes Weiner <hannes@cmpxchg.org> | 2014-12-10 18:44:55 -0500 |
---|---|---|
committer | Linus Torvalds <torvalds@linux-foundation.org> | 2014-12-10 20:41:09 -0500 |
commit | 5d1ea48bdde67898e87d6d8f511fd097fa64c749 (patch) | |
tree | 2936b8ed4b948ffdf655fd7b8fa71d68069f8bc4 /include/linux/swap_cgroup.h | |
parent | 1306a85aed3ec3db98945aafb7dfbe5648a1203c (diff) |
mm: page_cgroup: rename file to mm/swap_cgroup.c
Now that the external page_cgroup data structure and its lookup is gone,
the only code remaining in there is swap slot accounting.
Rename it and move the conditional compilation into mm/Makefile.
Signed-off-by: Johannes Weiner <hannes@cmpxchg.org>
Acked-by: Michal Hocko <mhocko@suse.cz>
Acked-by: Vladimir Davydov <vdavydov@parallels.com>
Acked-by: David S. Miller <davem@davemloft.net>
Acked-by: KAMEZAWA Hiroyuki <kamezawa.hiroyu@jp.fujitsu.com>
Cc: "Kirill A. Shutemov" <kirill@shutemov.name>
Cc: Tejun Heo <tj@kernel.org>
Cc: Joonsoo Kim <iamjoonsoo.kim@lge.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'include/linux/swap_cgroup.h')
-rw-r--r-- | include/linux/swap_cgroup.h | 42 |
1 files changed, 42 insertions, 0 deletions
diff --git a/include/linux/swap_cgroup.h b/include/linux/swap_cgroup.h new file mode 100644 index 000000000000..145306bdc92f --- /dev/null +++ b/include/linux/swap_cgroup.h | |||
@@ -0,0 +1,42 @@ | |||
1 | #ifndef __LINUX_SWAP_CGROUP_H | ||
2 | #define __LINUX_SWAP_CGROUP_H | ||
3 | |||
4 | #include <linux/swap.h> | ||
5 | |||
6 | #ifdef CONFIG_MEMCG_SWAP | ||
7 | |||
8 | extern unsigned short swap_cgroup_cmpxchg(swp_entry_t ent, | ||
9 | unsigned short old, unsigned short new); | ||
10 | extern unsigned short swap_cgroup_record(swp_entry_t ent, unsigned short id); | ||
11 | extern unsigned short lookup_swap_cgroup_id(swp_entry_t ent); | ||
12 | extern int swap_cgroup_swapon(int type, unsigned long max_pages); | ||
13 | extern void swap_cgroup_swapoff(int type); | ||
14 | |||
15 | #else | ||
16 | |||
17 | static inline | ||
18 | unsigned short swap_cgroup_record(swp_entry_t ent, unsigned short id) | ||
19 | { | ||
20 | return 0; | ||
21 | } | ||
22 | |||
23 | static inline | ||
24 | unsigned short lookup_swap_cgroup_id(swp_entry_t ent) | ||
25 | { | ||
26 | return 0; | ||
27 | } | ||
28 | |||
29 | static inline int | ||
30 | swap_cgroup_swapon(int type, unsigned long max_pages) | ||
31 | { | ||
32 | return 0; | ||
33 | } | ||
34 | |||
35 | static inline void swap_cgroup_swapoff(int type) | ||
36 | { | ||
37 | return; | ||
38 | } | ||
39 | |||
40 | #endif /* CONFIG_MEMCG_SWAP */ | ||
41 | |||
42 | #endif /* __LINUX_SWAP_CGROUP_H */ | ||