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-rw-r--r--include/linux/memcontrol.h6
-rw-r--r--include/linux/page_cgroup.h5
2 files changed, 9 insertions, 2 deletions
diff --git a/include/linux/memcontrol.h b/include/linux/memcontrol.h
index 05894795fdc..9411d32840b 100644
--- a/include/linux/memcontrol.h
+++ b/include/linux/memcontrol.h
@@ -90,7 +90,8 @@ int mm_match_cgroup(const struct mm_struct *mm, const struct mem_cgroup *cgroup)
extern struct cgroup_subsys_state *mem_cgroup_css(struct mem_cgroup *mem);
extern int
-mem_cgroup_prepare_migration(struct page *page, struct mem_cgroup **ptr);
+mem_cgroup_prepare_migration(struct page *page,
+ struct page *newpage, struct mem_cgroup **ptr);
extern void mem_cgroup_end_migration(struct mem_cgroup *mem,
struct page *oldpage, struct page *newpage);
@@ -227,7 +228,8 @@ static inline struct cgroup_subsys_state *mem_cgroup_css(struct mem_cgroup *mem)
}
static inline int
-mem_cgroup_prepare_migration(struct page *page, struct mem_cgroup **ptr)
+mem_cgroup_prepare_migration(struct page *page, struct page *newpage,
+ struct mem_cgroup **ptr)
{
return 0;
}
diff --git a/include/linux/page_cgroup.h b/include/linux/page_cgroup.h
index aef22ae2af4..5bb13b3db84 100644
--- a/include/linux/page_cgroup.h
+++ b/include/linux/page_cgroup.h
@@ -40,6 +40,7 @@ enum {
PCG_USED, /* this object is in use. */
PCG_ACCT_LRU, /* page has been accounted for */
PCG_FILE_MAPPED, /* page is accounted as "mapped" */
+ PCG_MIGRATION, /* under page migration */
};
#define TESTPCGFLAG(uname, lname) \
@@ -79,6 +80,10 @@ SETPCGFLAG(FileMapped, FILE_MAPPED)
CLEARPCGFLAG(FileMapped, FILE_MAPPED)
TESTPCGFLAG(FileMapped, FILE_MAPPED)
+SETPCGFLAG(Migration, MIGRATION)
+CLEARPCGFLAG(Migration, MIGRATION)
+TESTPCGFLAG(Migration, MIGRATION)
+
static inline int page_cgroup_nid(struct page_cgroup *pc)
{
return page_to_nid(pc->page);