216 #define for_each_ctrl(ctrl)			\  argument
217 	for ((ctrl) = controllers + 1; (ctrl)->ctrl_name; (ctrl)++)
226 #define for_each_dir(cg, ctrl, t)					\  argument
227 	for ((t) = (ctrl) ? (cg)->dirs_by_ctrl + (ctrl) : (cg)->dirs;	\
229 	     (t) = (ctrl) ? (cg)->dirs + ROOTS_MAX : (t) + 1)
233 		    const struct cgroup_ctrl *const ctrl)  in has_ctrl()  argument
235 	return !!(ctrl_field & (1 << ctrl->ctrl_indx));  in has_ctrl()
240 		     const struct cgroup_ctrl *const ctrl)  in add_ctrl()  argument
242 	*ctrl_field |= 1 << ctrl->ctrl_indx;  in add_ctrl()
261 static int cgroup_ctrl_on_v2(const struct cgroup_ctrl *const ctrl)  in cgroup_ctrl_on_v2()  argument
263 	return ctrl->ctrl_root && ctrl->ctrl_root->ver == TST_CGROUP_V2;  in cgroup_ctrl_on_v2()
307 	const struct cgroup_ctrl *ctrl;  in tst_cgroup_print_config()  local
311 	for_each_ctrl(ctrl) {  in tst_cgroup_print_config()
312 		root = ctrl->ctrl_root;  in tst_cgroup_print_config()
318 			ctrl->ctrl_name,  in tst_cgroup_print_config()
328 	struct cgroup_ctrl *ctrl = controllers;  in cgroup_find_ctrl()  local
330 	while (ctrl->ctrl_name && strcmp(ctrl_name, ctrl->ctrl_name))  in cgroup_find_ctrl()
331 		ctrl++;  in cgroup_find_ctrl()
333 	if (!ctrl->ctrl_name)  in cgroup_find_ctrl()
334 		ctrl = NULL;  in cgroup_find_ctrl()
336 	return ctrl;  in cgroup_find_ctrl()
362 	struct cgroup_ctrl *ctrl;  in cgroup_root_scan()  local
430 	for_each_ctrl(ctrl) {  in cgroup_root_scan()
431 		if (has_ctrl(root->ctrl_field, ctrl))  in cgroup_root_scan()
432 			ctrl->ctrl_root = root;  in cgroup_root_scan()
506 static void cgroup_mount_v1(struct cgroup_ctrl *const ctrl)  in cgroup_mount_v1()  argument
511 	sprintf(mnt_path, "%s%s", cgroup_mount_ltp_prefix, ctrl->ctrl_name);  in cgroup_mount_v1()
532 	if (mount(ctrl->ctrl_name, mnt_path, "cgroup", 0, ctrl->ctrl_name)) {  in cgroup_mount_v1()
541 	tst_res(TINFO, "Mounted V1 %s CGroup on %s", ctrl->ctrl_name, mnt_path);  in cgroup_mount_v1()
543 	if (!ctrl->ctrl_root)  in cgroup_mount_v1()
546 	ctrl->ctrl_root->we_mounted_it = 1;  in cgroup_mount_v1()
547 	ctrl->ctrl_root->mnt_dir.we_created_it = made_dir;  in cgroup_mount_v1()
549 	if (ctrl->ctrl_indx == CTRL_MEMORY) {  in cgroup_mount_v1()
550 		SAFE_FILE_PRINTFAT(ctrl->ctrl_root->mnt_dir.dir_fd,  in cgroup_mount_v1()
602 	struct cgroup_ctrl *const ctrl = cgroup_find_ctrl(ctrl_name);  in tst_cgroup_require()  local
605 	if (!ctrl) {  in tst_cgroup_require()
614 	if (ctrl->we_require_it)  in tst_cgroup_require()
615 		tst_res(TWARN, "Duplicate %s(%s, )", __func__, ctrl->ctrl_name);  in tst_cgroup_require()
617 	ctrl->we_require_it = 1;  in tst_cgroup_require()
619 	if (ctrl->ctrl_root)  in tst_cgroup_require()
624 	if (ctrl->ctrl_root)  in tst_cgroup_require()
630 	if (ctrl->ctrl_root)  in tst_cgroup_require()
633 	cgroup_mount_v1(ctrl);  in tst_cgroup_require()
635 	if (!ctrl->ctrl_root) {  in tst_cgroup_require()
638 			ctrl->ctrl_name);  in tst_cgroup_require()
643 	root = ctrl->ctrl_root;  in tst_cgroup_require()
644 	add_ctrl(&root->mnt_dir.ctrl_field, ctrl);  in tst_cgroup_require()
646 	if (cgroup_ctrl_on_v2(ctrl)) {  in tst_cgroup_require()
649 					   cgsc, "+%s", ctrl->ctrl_name);  in tst_cgroup_require()
652 					  cgsc, "+%s", ctrl->ctrl_name);  in tst_cgroup_require()
661 	if (cgroup_ctrl_on_v2(ctrl)) {  in tst_cgroup_require()
663 				   cgsc, "+%s", ctrl->ctrl_name);  in tst_cgroup_require()
668 		if (ctrl->ctrl_indx == CTRL_CPUSET)  in tst_cgroup_require()
756 	struct cgroup_ctrl *ctrl;  in tst_cgroup_cleanup()  local
789 	for_each_ctrl(ctrl) {  in tst_cgroup_cleanup()
790 		if (!cgroup_ctrl_on_v2(ctrl) || !ctrl->ctrl_root->we_mounted_it)  in tst_cgroup_cleanup()
793 		SAFE_FILE_PRINTFAT(ctrl->ctrl_root->mnt_dir.dir_fd,  in tst_cgroup_cleanup()
795 				   "-%s", ctrl->ctrl_name);  in tst_cgroup_cleanup()
812 	for_each_ctrl(ctrl) {  in tst_cgroup_cleanup()
813 		ctrl->ctrl_root = NULL;  in tst_cgroup_cleanup()
814 		ctrl->we_require_it = 0;  in tst_cgroup_cleanup()
843 	const struct cgroup_ctrl *ctrl;  in cgroup_group_add_dir()  local
849 	for_each_ctrl(ctrl) {  in cgroup_group_add_dir()
850 		if (!has_ctrl(dir->ctrl_field, ctrl))  in cgroup_group_add_dir()
853 		cg->dirs_by_ctrl[ctrl->ctrl_indx] = dir;  in cgroup_group_add_dir()
859 				   "+%s", ctrl->ctrl_name);  in cgroup_group_add_dir()
914 	const struct cgroup_ctrl *ctrl;  in cgroup_file_find()  local
930 	ctrl = cgroup_find_ctrl(ctrl_name);  in cgroup_file_find()
932 	if (!ctrl) {  in cgroup_file_find()
938 	for (cfile = ctrl->files; cfile->file_name; cfile++) {  in cgroup_file_find()
946 			 file_name, ctrl->ctrl_name);  in cgroup_file_find()
957 	const struct cgroup_ctrl *const ctrl = cgroup_find_ctrl(ctrl_name);  in tst_cgroup_ver()  local
967 	if (!ctrl) {  in tst_cgroup_ver()
973 	dir = cg->dirs_by_ctrl[ctrl->ctrl_indx];  in tst_cgroup_ver()