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authorJohannes Weiner <hannes@cmpxchg.org>2014-12-11 00:44:55 +0100
committerLinus Torvalds <torvalds@linux-foundation.org>2014-12-11 02:41:09 +0100
commit5d1ea48bdde67898e87d6d8f511fd097fa64c749 (patch)
tree2936b8ed4b948ffdf655fd7b8fa71d68069f8bc4 /include
parentmm: embed the memcg pointer directly into struct page (diff)
downloadlinux-5d1ea48bdde67898e87d6d8f511fd097fa64c749.tar.xz
linux-5d1ea48bdde67898e87d6d8f511fd097fa64c749.zip
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')
-rw-r--r--include/linux/swap_cgroup.h (renamed from include/linux/page_cgroup.h)8
1 files changed, 5 insertions, 3 deletions
diff --git a/include/linux/page_cgroup.h b/include/linux/swap_cgroup.h
index 65be35785c86..145306bdc92f 100644
--- a/include/linux/page_cgroup.h
+++ b/include/linux/swap_cgroup.h
@@ -1,15 +1,17 @@
-#ifndef __LINUX_PAGE_CGROUP_H
-#define __LINUX_PAGE_CGROUP_H
+#ifndef __LINUX_SWAP_CGROUP_H
+#define __LINUX_SWAP_CGROUP_H
#include <linux/swap.h>
#ifdef CONFIG_MEMCG_SWAP
+
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_id(swp_entry_t ent);
extern int swap_cgroup_swapon(int type, unsigned long max_pages);
extern void swap_cgroup_swapoff(int type);
+
#else
static inline
@@ -37,4 +39,4 @@ static inline void swap_cgroup_swapoff(int type)
#endif /* CONFIG_MEMCG_SWAP */
-#endif /* __LINUX_PAGE_CGROUP_H */
+#endif /* __LINUX_SWAP_CGROUP_H */