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-rw-r--r--include/linux/memcontrol.h48
1 files changed, 45 insertions, 3 deletions
diff --git a/include/linux/memcontrol.h b/include/linux/memcontrol.h
index 899949bbb2f9..b2a5b1cd4e55 100644
--- a/include/linux/memcontrol.h
+++ b/include/linux/memcontrol.h
@@ -357,6 +357,17 @@ static inline unsigned short mem_cgroup_id(struct mem_cgroup *memcg)
}
struct mem_cgroup *mem_cgroup_from_id(unsigned short id);
+static inline struct mem_cgroup *lruvec_memcg(struct lruvec *lruvec)
+{
+ struct mem_cgroup_per_node *mz;
+
+ if (mem_cgroup_disabled())
+ return NULL;
+
+ mz = container_of(lruvec, struct mem_cgroup_per_node, lruvec);
+ return mz->memcg;
+}
+
/**
* parent_mem_cgroup - find the accounting parent of a memcg
* @memcg: memcg whose parent to find
@@ -546,8 +557,23 @@ unsigned long mem_cgroup_soft_limit_reclaim(pg_data_t *pgdat, int order,
gfp_t gfp_mask,
unsigned long *total_scanned);
-static inline void mem_cgroup_count_vm_event(struct mm_struct *mm,
- enum vm_event_item idx)
+static inline void count_memcg_events(struct mem_cgroup *memcg,
+ enum vm_event_item idx,
+ unsigned long count)
+{
+ if (!mem_cgroup_disabled())
+ this_cpu_add(memcg->stat->events[idx], count);
+}
+
+static inline void count_memcg_page_event(struct page *page,
+ enum memcg_stat_item idx)
+{
+ if (page->mem_cgroup)
+ count_memcg_events(page->mem_cgroup, idx, 1);
+}
+
+static inline void count_memcg_event_mm(struct mm_struct *mm,
+ enum vm_event_item idx)
{
struct mem_cgroup *memcg;
@@ -675,6 +701,11 @@ static inline struct mem_cgroup *mem_cgroup_from_id(unsigned short id)
return NULL;
}
+static inline struct mem_cgroup *lruvec_memcg(struct lruvec *lruvec)
+{
+ return NULL;
+}
+
static inline bool mem_cgroup_online(struct mem_cgroup *memcg)
{
return true;
@@ -789,8 +820,19 @@ static inline void mem_cgroup_split_huge_fixup(struct page *head)
{
}
+static inline void count_memcg_events(struct mem_cgroup *memcg,
+ enum vm_event_item idx,
+ unsigned long count)
+{
+}
+
+static inline void count_memcg_page_event(struct page *page,
+ enum memcg_stat_item idx)
+{
+}
+
static inline
-void mem_cgroup_count_vm_event(struct mm_struct *mm, enum vm_event_item idx)
+void count_memcg_event_mm(struct mm_struct *mm, enum vm_event_item idx)
{
}
#endif /* CONFIG_MEMCG */