378 	struct rw_semaphore conf_sem;  member
1430 	down_write(&b->conf_sem);  in vmballoon_reset()
1466 	up_write(&b->conf_sem);  in vmballoon_reset()
1486 	down_read(&b->conf_sem);  in vmballoon_work()
1508 	up_read(&b->conf_sem);  in vmballoon_work()
1540 	if (!down_read_trylock(&b->conf_sem))  in vmballoon_shrinker_scan()
1555 	up_read(&b->conf_sem);  in vmballoon_shrinker_scan()
1628 	down_write(&b->conf_sem);  in vmballoon_enable_stats()
1643 	up_write(&b->conf_sem);  in vmballoon_enable_stats()
1780 	if (!down_read_trylock(&b->conf_sem))  in vmballoon_migratepage()
1866 	up_read(&b->conf_sem);  in vmballoon_migratepage()
1953 	init_rwsem(&balloon.conf_sem);  in vmballoon_init()