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-rw-r--r--include/linux/memcontrol.h24
1 files changed, 24 insertions, 0 deletions
diff --git a/include/linux/memcontrol.h b/include/linux/memcontrol.h
index 3558a5e268c..3b99dce8529 100644
--- a/include/linux/memcontrol.h
+++ b/include/linux/memcontrol.h
@@ -40,6 +40,12 @@ extern unsigned long mem_cgroup_isolate_pages(unsigned long nr_to_scan,
struct mem_cgroup *mem_cont,
int active, int file);
+struct mem_cgroup_reclaim_cookie {
+ struct zone *zone;
+ int priority;
+ unsigned int generation;
+};
+
#ifdef CONFIG_CGROUP_MEM_RES_CTLR
/*
* All "charge" functions with gfp_mask should use GFP_KERNEL or
@@ -106,6 +112,11 @@ mem_cgroup_prepare_migration(struct page *page,
extern void mem_cgroup_end_migration(struct mem_cgroup *memcg,
struct page *oldpage, struct page *newpage, bool migration_ok);
+struct mem_cgroup *mem_cgroup_iter(struct mem_cgroup *,
+ struct mem_cgroup *,
+ struct mem_cgroup_reclaim_cookie *);
+void mem_cgroup_iter_break(struct mem_cgroup *, struct mem_cgroup *);
+
/*
* For memory reclaim.
*/
@@ -281,6 +292,19 @@ static inline void mem_cgroup_end_migration(struct mem_cgroup *memcg,
{
}
+static inline struct mem_cgroup *
+mem_cgroup_iter(struct mem_cgroup *root,
+ struct mem_cgroup *prev,
+ struct mem_cgroup_reclaim_cookie *reclaim)
+{
+ return NULL;
+}
+
+static inline void mem_cgroup_iter_break(struct mem_cgroup *root,
+ struct mem_cgroup *prev)
+{
+}
+
static inline int mem_cgroup_get_reclaim_priority(struct mem_cgroup *memcg)
{
return 0;