532 struct cftype {  struct
538 	char name[MAX_CFTYPE_NAME];
539 	unsigned long private;
545 	size_t max_write_len;
548 	unsigned int flags;
573 	u64 (*read_u64)(struct cgroup_subsys_state *css, struct cftype *cft);  argument
577 	s64 (*read_s64)(struct cgroup_subsys_state *css, struct cftype *cft);  argument
592 	int (*write_u64)(struct cgroup_subsys_state *css, struct cftype *cft,  argument
597 	int (*write_s64)(struct cgroup_subsys_state *css, struct cftype *cft,  argument
606 	ssize_t (*write)(struct kernfs_open_file *of,
609 	__poll_t (*poll)(struct kernfs_open_file *of,
613 	struct lock_class_key	lockdep_key;