wait_on_bit_lock_io  717 drivers/md/dm-bufio.c 	wait_on_bit_lock_io(&b->state, B_WRITING, TASK_UNINTERRUPTIBLE);
wait_on_bit_lock_io 1380 drivers/md/dm-bufio.c 		wait_on_bit_lock_io(&b->state, B_WRITING,
wait_on_bit_lock_io   66 fs/buffer.c    	wait_on_bit_lock_io(&bh->b_state, BH_Lock, TASK_UNINTERRUPTIBLE);