278 	long credit;  in reserve_additional_memory()  local
283 	credit = balloon_stats.target_pages + balloon_stats.target_unpopulated  in reserve_additional_memory()
290 	if (credit <= 0)  in reserve_additional_memory()
293 	balloon_hotplug = round_up(credit, PAGES_PER_SECTION);  in reserve_additional_memory()
500  * needed, or if the credit has changed while state is not BP_DONE.
502 static bool balloon_thread_cond(long credit)  in balloon_thread_cond()  argument
505 		credit = 0;  in balloon_thread_cond()
507 	return current_credit() != credit || kthread_should_stop();  in balloon_thread_cond()
518 	long credit;  in balloon_thread()  local
536 		credit = current_credit();  in balloon_thread()
539 			balloon_thread_cond(credit), timeout);  in balloon_thread()
546 		credit = current_credit();  in balloon_thread()
548 		if (credit > 0) {  in balloon_thread()
550 				balloon_state = increase_reservation(credit);  in balloon_thread()
555 		if (credit < 0) {  in balloon_thread()
558 			n_pages = min(-credit, si_mem_available());  in balloon_thread()
561 			if (balloon_state == BP_DONE && n_pages != -credit &&  in balloon_thread()
776 	long credit, last_credit = 0;  in balloon_wait_finish()  local
788 	while ((credit = current_credit()) < 0) {  in balloon_wait_finish()
789 		if (credit != last_credit) {  in balloon_wait_finish()
791 			last_credit = credit;  in balloon_wait_finish()
795 				     -credit);  in balloon_wait_finish()