273 	long credit;  in reserve_additional_memory()  local
278 	credit = balloon_stats.target_pages + balloon_stats.target_unpopulated  in reserve_additional_memory()
285 	if (credit <= 0)  in reserve_additional_memory()
288 	balloon_hotplug = round_up(credit, PAGES_PER_SECTION);  in reserve_additional_memory()
495  * needed, or if the credit has changed while state is not BP_DONE.
497 static bool balloon_thread_cond(enum bp_state state, long credit)  in balloon_thread_cond()  argument
500 		credit = 0;  in balloon_thread_cond()
502 	return current_credit() != credit || kthread_should_stop();  in balloon_thread_cond()
514 	long credit;  in balloon_thread()  local
532 		credit = current_credit();  in balloon_thread()
535 			balloon_thread_cond(state, credit), timeout);  in balloon_thread()
542 		credit = current_credit();  in balloon_thread()
544 		if (credit > 0) {  in balloon_thread()
546 				state = increase_reservation(credit);  in balloon_thread()
551 		if (credit < 0) {  in balloon_thread()
554 			n_pages = min(-credit, si_mem_available());  in balloon_thread()
556 			if (state == BP_DONE && n_pages != -credit &&  in balloon_thread()