read_lock_wq     4935 fs/btrfs/extent_io.c 	init_waitqueue_head(&eb->read_lock_wq);
read_lock_wq      187 fs/btrfs/extent_io.h 	wait_queue_head_t read_lock_wq;
read_lock_wq      267 fs/btrfs/locking.c 		cond_wake_up_nomb(&eb->read_lock_wq);
read_lock_wq      284 fs/btrfs/locking.c 	wait_event(eb->read_lock_wq, atomic_read(&eb->blocking_readers) == 0);