333 	struct cftype *cft = of_cft(of);  in of_css()  local
343 	if (cft->ss)  in of_css()
344 		return rcu_dereference_raw(cgrp->subsys[cft->ss->id]);  in of_css()
1005 static char *cgroup_file_name(struct cgroup *cgrp, const struct cftype *cft,  in cgroup_file_name()  argument
1008 	if (cft->ss && !(cft->flags & CFTYPE_NO_PREFIX) &&  in cgroup_file_name()
1011 			 cft->ss->name, cft->name);  in cgroup_file_name()
1013 		strncpy(buf, cft->name, CGROUP_FILE_NAME_MAX);  in cgroup_file_name()
1026 static umode_t cgroup_file_mode(const struct cftype *cft)  in cgroup_file_mode()  argument
1030 	if (cft->mode)  in cgroup_file_mode()
1031 		return cft->mode;  in cgroup_file_mode()
1033 	if (cft->read_u64 || cft->read_s64 || cft->seq_show)  in cgroup_file_mode()
1036 	if (cft->write_u64 || cft->write_s64 || cft->write)  in cgroup_file_mode()
1190 static void cgroup_rm_file(struct cgroup *cgrp, const struct cftype *cft)  in cgroup_rm_file()  argument
1195 	kernfs_remove_by_name(cgrp->kn, cgroup_file_name(cgrp, cft, name));  in cgroup_rm_file()
2932 	struct cftype *cft = of->kn->priv;  in cgroup_file_write()  local
2936 	if (cft->write)  in cgroup_file_write()
2937 		return cft->write(of, buf, nbytes, off);  in cgroup_file_write()
2946 	css = cgroup_css(cgrp, cft->ss);  in cgroup_file_write()
2949 	if (cft->write_u64) {  in cgroup_file_write()
2953 			ret = cft->write_u64(css, cft, v);  in cgroup_file_write()
2954 	} else if (cft->write_s64) {  in cgroup_file_write()
2958 			ret = cft->write_s64(css, cft, v);  in cgroup_file_write()
2983 	struct cftype *cft = seq_cft(m);  in cgroup_seqfile_show()  local
2986 	if (cft->seq_show)  in cgroup_seqfile_show()
2987 		return cft->seq_show(m, arg);  in cgroup_seqfile_show()
2989 	if (cft->read_u64)  in cgroup_seqfile_show()
2990 		seq_printf(m, "%llu\n", cft->read_u64(css, cft));  in cgroup_seqfile_show()
2991 	else if (cft->read_s64)  in cgroup_seqfile_show()
2992 		seq_printf(m, "%lld\n", cft->read_s64(css, cft));  in cgroup_seqfile_show()
3067 static int cgroup_add_file(struct cgroup *cgrp, struct cftype *cft)  in cgroup_add_file()  argument
3075 	key = &cft->lockdep_key;  in cgroup_add_file()
3077 	kn = __kernfs_create_file(cgrp->kn, cgroup_file_name(cgrp, cft, name),  in cgroup_add_file()
3078 				  cgroup_file_mode(cft), 0, cft->kf_ops, cft,  in cgroup_add_file()
3089 	if (cft->seq_show == cgroup_populated_show)  in cgroup_add_file()
3108 	struct cftype *cft;  in cgroup_addrm_files()  local
3113 	for (cft = cfts; cft->name[0] != '\0'; cft++) {  in cgroup_addrm_files()
3115 		if ((cft->flags & __CFTYPE_ONLY_ON_DFL) && !cgroup_on_dfl(cgrp))  in cgroup_addrm_files()
3117 		if ((cft->flags & __CFTYPE_NOT_ON_DFL) && cgroup_on_dfl(cgrp))  in cgroup_addrm_files()
3119 		if ((cft->flags & CFTYPE_NOT_ON_ROOT) && !cgroup_parent(cgrp))  in cgroup_addrm_files()
3121 		if ((cft->flags & CFTYPE_ONLY_ON_ROOT) && cgroup_parent(cgrp))  in cgroup_addrm_files()
3125 			ret = cgroup_add_file(cgrp, cft);  in cgroup_addrm_files()
3128 					__func__, cft->name, ret);  in cgroup_addrm_files()
3132 			cgroup_rm_file(cgrp, cft);  in cgroup_addrm_files()
3167 	struct cftype *cft;  in cgroup_exit_cftypes()  local
3169 	for (cft = cfts; cft->name[0] != '\0'; cft++) {  in cgroup_exit_cftypes()
3171 		if (cft->max_write_len && cft->max_write_len != PAGE_SIZE)  in cgroup_exit_cftypes()
3172 			kfree(cft->kf_ops);  in cgroup_exit_cftypes()
3173 		cft->kf_ops = NULL;  in cgroup_exit_cftypes()
3174 		cft->ss = NULL;  in cgroup_exit_cftypes()
3177 		cft->flags &= ~(__CFTYPE_ONLY_ON_DFL | __CFTYPE_NOT_ON_DFL);  in cgroup_exit_cftypes()
3183 	struct cftype *cft;  in cgroup_init_cftypes()  local
3185 	for (cft = cfts; cft->name[0] != '\0'; cft++) {  in cgroup_init_cftypes()
3188 		WARN_ON(cft->ss || cft->kf_ops);  in cgroup_init_cftypes()
3190 		if (cft->seq_start)  in cgroup_init_cftypes()
3199 		if (cft->max_write_len && cft->max_write_len != PAGE_SIZE) {  in cgroup_init_cftypes()
3205 			kf_ops->atomic_write_len = cft->max_write_len;  in cgroup_init_cftypes()
3208 		cft->kf_ops = kf_ops;  in cgroup_init_cftypes()
3209 		cft->ss = ss;  in cgroup_init_cftypes()
3298 	struct cftype *cft;  in cgroup_add_dfl_cftypes()  local
3300 	for (cft = cfts; cft && cft->name[0] != '\0'; cft++)  in cgroup_add_dfl_cftypes()
3301 		cft->flags |= __CFTYPE_ONLY_ON_DFL;  in cgroup_add_dfl_cftypes()
3315 	struct cftype *cft;  in cgroup_add_legacy_cftypes()  local
3324 		for (cft = cfts; cft && cft->name[0] != '\0'; cft++)  in cgroup_add_legacy_cftypes()
3325 			cft->flags |= __CFTYPE_NOT_ON_DFL;  in cgroup_add_legacy_cftypes()
4204 					 struct cftype *cft)  in cgroup_read_notify_on_release()  argument
4210 					  struct cftype *cft, u64 val)  in cgroup_write_notify_on_release()  argument
4220 				      struct cftype *cft)  in cgroup_clone_children_read()  argument
4226 				       struct cftype *cft, u64 val)  in cgroup_clone_children_write()  argument
5488 				struct cftype *cft)  in debug_taskcount_read()  argument
5494 				struct cftype *cft)  in current_css_set_read()  argument
5500 					 struct cftype *cft)  in current_css_set_refcount_read()  argument
5569 static u64 releasable_read(struct cgroup_subsys_state *css, struct cftype *cft)  in releasable_read()  argument