373 	struct rw_semaphore conf_sem;  member
1425 	down_write(&b->conf_sem);  in vmballoon_reset()
1461 	up_write(&b->conf_sem);  in vmballoon_reset()
1481 	down_read(&b->conf_sem);  in vmballoon_work()
1503 	up_read(&b->conf_sem);  in vmballoon_work()
1535 	if (!down_read_trylock(&b->conf_sem))  in vmballoon_shrinker_scan()
1550 	up_read(&b->conf_sem);  in vmballoon_shrinker_scan()
1623 	down_write(&b->conf_sem);  in vmballoon_enable_stats()
1638 	up_write(&b->conf_sem);  in vmballoon_enable_stats()
1775 	if (!down_read_trylock(&b->conf_sem))  in vmballoon_migratepage()
1861 	up_read(&b->conf_sem);  in vmballoon_migratepage()
1948 	init_rwsem(&balloon.conf_sem);  in vmballoon_init()