923 int cgroup1_parse_param(struct fs_context *fc, struct fs_parameter *param)  in cgroup1_parse_param()  argument
925 	struct cgroup_fs_context *ctx = cgroup_fc2context(fc);  in cgroup1_parse_param()
930 	opt = fs_parse(fc, cgroup1_fs_parameters, param, &result);  in cgroup1_parse_param()
934 		ret = vfs_parse_fs_param_source(fc, param);  in cgroup1_parse_param()
941 				return invalfc(fc, "Disabled controller '%s'",  in cgroup1_parse_param()
946 		return invalfc(fc, "Unknown subsys name '%s'", param->key);  in cgroup1_parse_param()
980 			return invalfc(fc, "release_agent respecified");  in cgroup1_parse_param()
985 		if ((fc->user_ns != &init_user_ns) || !capable(CAP_SYS_ADMIN))  in cgroup1_parse_param()
986 			return invalfc(fc, "Setting release_agent not allowed");  in cgroup1_parse_param()
996 			return invalfc(fc, "Empty name");  in cgroup1_parse_param()
998 			return invalfc(fc, "Name too long");  in cgroup1_parse_param()
1006 			return invalfc(fc, "Invalid name");  in cgroup1_parse_param()
1010 			return invalfc(fc, "name respecified");  in cgroup1_parse_param()
1018 static int check_cgroupfs_options(struct fs_context *fc)  in check_cgroupfs_options()  argument
1020 	struct cgroup_fs_context *ctx = cgroup_fc2context(fc);  in check_cgroupfs_options()
1045 			return invalfc(fc, "subsys name conflicts with all");  in check_cgroupfs_options()
1055 		return invalfc(fc, "Need name or subsystem set");  in check_cgroupfs_options()
1063 		return invalfc(fc, "noprefix used incorrectly");  in check_cgroupfs_options()
1067 		return invalfc(fc, "none used incorrectly");  in check_cgroupfs_options()
1072 int cgroup1_reconfigure(struct fs_context *fc)  in cgroup1_reconfigure()  argument
1074 	struct cgroup_fs_context *ctx = cgroup_fc2context(fc);  in cgroup1_reconfigure()
1075 	struct kernfs_root *kf_root = kernfs_root_from_sb(fc->root->d_sb);  in cgroup1_reconfigure()
1083 	ret = check_cgroupfs_options(fc);  in cgroup1_reconfigure()
1097 		errorfc(fc, "option or name mismatch, new: 0x%x \"%s\", old: 0x%x \"%s\"",  in cgroup1_reconfigure()
1144 static int cgroup1_root_to_use(struct fs_context *fc)  in cgroup1_root_to_use()  argument
1146 	struct cgroup_fs_context *ctx = cgroup_fc2context(fc);  in cgroup1_root_to_use()
1152 	ret = check_cgroupfs_options(fc);  in cgroup1_root_to_use()
1214 		return invalfc(fc, "No subsys list or none specified");  in cgroup1_root_to_use()
1236 int cgroup1_get_tree(struct fs_context *fc)  in cgroup1_get_tree()  argument
1238 	struct cgroup_fs_context *ctx = cgroup_fc2context(fc);  in cgroup1_get_tree()
1247 	ret = cgroup1_root_to_use(fc);  in cgroup1_get_tree()
1254 		ret = cgroup_do_get_tree(fc);  in cgroup1_get_tree()
1257 		fc_drop_locked(fc);  in cgroup1_get_tree()