211 struct mem_cgroup {  struct
215 	struct mem_cgroup_id id;  argument
218 	struct page_counter memory;		/* Both v1 & v2 */
220 	union {
226 	struct page_counter kmem;		/* v1 only */
227 	struct page_counter tcpmem;		/* v1 only */
230 	struct work_struct high_work;
232 	unsigned long soft_limit;
235 	struct vmpressure vmpressure;
240 	bool use_hierarchy;
266 	struct mem_cgroup_thresholds thresholds;  argument
269 	struct mem_cgroup_thresholds memsw_thresholds;  argument
276 	 * mem_cgroup ? And what type of charges should we move ?  argument
278 	unsigned long move_charge_at_immigrate;
280 	spinlock_t		move_lock;
281 	unsigned long		move_lock_flags;
285 	atomic_long_t		vmstats[MEMCG_NR_STAT];
286 	atomic_long_t		vmevents[NR_VM_EVENT_ITEMS];
289 	atomic_long_t		memory_events[MEMCG_NR_MEMORY_EVENTS];
290 	atomic_long_t		memory_events_local[MEMCG_NR_MEMORY_EVENTS];
292 	unsigned long		socket_pressure;
295 	bool			tcpmem_active;
296 	int			tcpmem_pressure;
300 	int kmemcg_id;
301 	enum memcg_kmem_state kmem_state;
302 	struct obj_cgroup __rcu *objcg;
303 	struct list_head objcg_list; /* list of inherited objcgs */
334 	struct mem_cgroup_per_node *nodeinfo[0];  argument
344 extern struct mem_cgroup *root_mem_cgroup;  argument