928 int cgroup1_parse_param(struct fs_context *fc, struct fs_parameter *param)  in cgroup1_parse_param()  argument
930 	struct cgroup_fs_context *ctx = cgroup_fc2context(fc);  in cgroup1_parse_param()
935 	opt = fs_parse(fc, cgroup1_fs_parameters, param, &result);  in cgroup1_parse_param()
939 		ret = vfs_parse_fs_param_source(fc, param);  in cgroup1_parse_param()
946 				return invalfc(fc, "Disabled controller '%s'",  in cgroup1_parse_param()
951 		return invalfc(fc, "Unknown subsys name '%s'", param->key);  in cgroup1_parse_param()
979 			return invalfc(fc, "release_agent respecified");  in cgroup1_parse_param()
984 		if ((fc->user_ns != &init_user_ns) || !capable(CAP_SYS_ADMIN))  in cgroup1_parse_param()
985 			return invalfc(fc, "Setting release_agent not allowed");  in cgroup1_parse_param()
995 			return invalfc(fc, "Empty name");  in cgroup1_parse_param()
997 			return invalfc(fc, "Name too long");  in cgroup1_parse_param()
1005 			return invalfc(fc, "Invalid name");  in cgroup1_parse_param()
1009 			return invalfc(fc, "name respecified");  in cgroup1_parse_param()
1017 static int check_cgroupfs_options(struct fs_context *fc)  in check_cgroupfs_options()  argument
1019 	struct cgroup_fs_context *ctx = cgroup_fc2context(fc);  in check_cgroupfs_options()
1044 			return invalfc(fc, "subsys name conflicts with all");  in check_cgroupfs_options()
1054 		return invalfc(fc, "Need name or subsystem set");  in check_cgroupfs_options()
1062 		return invalfc(fc, "noprefix used incorrectly");  in check_cgroupfs_options()
1066 		return invalfc(fc, "none used incorrectly");  in check_cgroupfs_options()
1071 int cgroup1_reconfigure(struct fs_context *fc)  in cgroup1_reconfigure()  argument
1073 	struct cgroup_fs_context *ctx = cgroup_fc2context(fc);  in cgroup1_reconfigure()
1074 	struct kernfs_root *kf_root = kernfs_root_from_sb(fc->root->d_sb);  in cgroup1_reconfigure()
1082 	ret = check_cgroupfs_options(fc);  in cgroup1_reconfigure()
1096 		errorfc(fc, "option or name mismatch, new: 0x%x \"%s\", old: 0x%x \"%s\"",  in cgroup1_reconfigure()
1143 static int cgroup1_root_to_use(struct fs_context *fc)  in cgroup1_root_to_use()  argument
1145 	struct cgroup_fs_context *ctx = cgroup_fc2context(fc);  in cgroup1_root_to_use()
1151 	ret = check_cgroupfs_options(fc);  in cgroup1_root_to_use()
1213 		return invalfc(fc, "No subsys list or none specified");  in cgroup1_root_to_use()
1232 int cgroup1_get_tree(struct fs_context *fc)  in cgroup1_get_tree()  argument
1234 	struct cgroup_fs_context *ctx = cgroup_fc2context(fc);  in cgroup1_get_tree()
1243 	ret = cgroup1_root_to_use(fc);  in cgroup1_get_tree()
1250 		ret = cgroup_do_get_tree(fc);  in cgroup1_get_tree()
1253 		fc_drop_locked(fc);  in cgroup1_get_tree()