block: kill off q->flush_flags

[deliverable/linux.git] / include / linux / memcontrol.h

diff --git a/include/linux/memcontrol.h b/include/linux/memcontrol.h
index f0c4bec6565bf6f69fbb8ad98230515dc3479b8f..1191d79aa495e698fdd233e91c2b2b2e317cba9d 100644 (file)
--- a/include/linux/memcontrol.h
+++ b/include/linux/memcontrol.h
@@ -52,7 +52,10 @@ enum mem_cgroup_stat_index {
        MEM_CGROUP_STAT_SWAP,           /* # of pages, swapped out */
        MEM_CGROUP_STAT_NSTATS,
        /* default hierarchy stats */
-       MEMCG_SOCK = MEM_CGROUP_STAT_NSTATS,
+       MEMCG_KERNEL_STACK = MEM_CGROUP_STAT_NSTATS,
+       MEMCG_SLAB_RECLAIMABLE,
+       MEMCG_SLAB_UNRECLAIMABLE,
+       MEMCG_SOCK,
        MEMCG_NR_STAT,
 };
 
@@ -400,6 +403,9 @@ int mem_cgroup_select_victim_node(struct mem_cgroup *memcg);
 void mem_cgroup_update_lru_size(struct lruvec *lruvec, enum lru_list lru,
                int nr_pages);
 
+unsigned long mem_cgroup_node_nr_lru_pages(struct mem_cgroup *memcg,
+                                          int nid, unsigned int lru_mask);
+
 static inline
 unsigned long mem_cgroup_get_lru_size(struct lruvec *lruvec, enum lru_list lru)
 {
@@ -658,6 +664,13 @@ mem_cgroup_update_lru_size(struct lruvec *lruvec, enum lru_list lru,
 {
 }
 
+static inline unsigned long
+mem_cgroup_node_nr_lru_pages(struct mem_cgroup *memcg,
+                            int nid, unsigned int lru_mask)
+{
+       return 0;
+}
+
 static inline void
 mem_cgroup_print_oom_info(struct mem_cgroup *memcg, struct task_struct *p)
 {
@@ -792,11 +805,6 @@ static inline bool memcg_kmem_enabled(void)
        return static_branch_unlikely(&memcg_kmem_enabled_key);
 }
 
-static inline bool memcg_kmem_online(struct mem_cgroup *memcg)
-{
-       return memcg->kmem_state == KMEM_ONLINE;
-}
-
 /*
  * In general, we'll do everything in our power to not incur in any overhead
  * for non-memcg users for the kmem functions. Not even a function call, if we
@@ -883,6 +891,20 @@ static __always_inline void memcg_kmem_put_cache(struct kmem_cache *cachep)
        if (memcg_kmem_enabled())
                __memcg_kmem_put_cache(cachep);
 }
+
+/**
+ * memcg_kmem_update_page_stat - update kmem page state statistics
+ * @page: the page
+ * @idx: page state item to account
+ * @val: number of pages (positive or negative)
+ */
+static inline void memcg_kmem_update_page_stat(struct page *page,
+                               enum mem_cgroup_stat_index idx, int val)
+{
+       if (memcg_kmem_enabled() && page->mem_cgroup)
+               this_cpu_add(page->mem_cgroup->stat->count[idx], val);
+}
+
 #else
 #define for_each_memcg_cache_index(_idx)       \
        for (; NULL; )
@@ -892,11 +914,6 @@ static inline bool memcg_kmem_enabled(void)
        return false;
 }
 
-static inline bool memcg_kmem_online(struct mem_cgroup *memcg)
-{
-       return false;
-}
-
 static inline int memcg_kmem_charge(struct page *page, gfp_t gfp, int order)
 {
        return 0;
@@ -928,6 +945,11 @@ memcg_kmem_get_cache(struct kmem_cache *cachep, gfp_t gfp)
 static inline void memcg_kmem_put_cache(struct kmem_cache *cachep)
 {
 }
+
+static inline void memcg_kmem_update_page_stat(struct page *page,
+                               enum mem_cgroup_stat_index idx, int val)
+{
+}
 #endif /* CONFIG_MEMCG && !CONFIG_SLOB */
 
 #endif /* _LINUX_MEMCONTROL_H */