Merge branch 'for-4.4' of git://git.kernel.org/pub/scm/linux/kernel/git/tj/cgroup

[firefly-linux-kernel-4.4.55.git] / include / linux / memcontrol.h

diff --git a/include/linux/memcontrol.h b/include/linux/memcontrol.h
index 6452ff4c463fd8715edc9a5043bc812521a18d6a..27251ed428f7db8adaf54c58b7f9e41deda9048d 100644 (file)
--- a/include/linux/memcontrol.h
+++ b/include/linux/memcontrol.h
@@ -213,6 +213,9 @@ struct mem_cgroup {
        /* OOM-Killer disable */
        int             oom_kill_disable;
 
+       /* handle for "memory.events" */
+       struct cgroup_file events_file;
+
        /* protect arrays of thresholds */
        struct mutex thresholds_lock;
 
@@ -285,6 +288,7 @@ static inline void mem_cgroup_events(struct mem_cgroup *memcg,
                       unsigned int nr)
 {
        this_cpu_add(memcg->stat->events[idx], nr);
+       cgroup_file_notify(&memcg->events_file);
 }
 
 bool mem_cgroup_low(struct mem_cgroup *root, struct mem_cgroup *memcg);
@@ -346,9 +350,7 @@ ino_t page_cgroup_ino(struct page *page);
 
 static inline bool mem_cgroup_disabled(void)
 {
-       if (memory_cgrp_subsys.disabled)
-               return true;
-       return false;
+       return !cgroup_subsys_enabled(memory_cgrp_subsys);
 }
 
 /*
@@ -676,8 +678,9 @@ enum {
 
 struct list_head *mem_cgroup_cgwb_list(struct mem_cgroup *memcg);
 struct wb_domain *mem_cgroup_wb_domain(struct bdi_writeback *wb);
-void mem_cgroup_wb_stats(struct bdi_writeback *wb, unsigned long *pavail,
-                        unsigned long *pdirty, unsigned long *pwriteback);
+void mem_cgroup_wb_stats(struct bdi_writeback *wb, unsigned long *pfilepages,
+                        unsigned long *pheadroom, unsigned long *pdirty,
+                        unsigned long *pwriteback);
 
 #else  /* CONFIG_CGROUP_WRITEBACK */
 
@@ -687,7 +690,8 @@ static inline struct wb_domain *mem_cgroup_wb_domain(struct bdi_writeback *wb)
 }
 
 static inline void mem_cgroup_wb_stats(struct bdi_writeback *wb,
-                                      unsigned long *pavail,
+                                      unsigned long *pfilepages,
+                                      unsigned long *pheadroom,
                                       unsigned long *pdirty,
                                       unsigned long *pwriteback)
 {