311 #define B_WRITING	1  macro
1428 	BUG_ON(!test_bit(B_WRITING, &b->state));  in write_endio()
1431 	clear_bit(B_WRITING, &b->state);  in write_endio()
1434 	wake_up_bit(&b->state, B_WRITING);  in write_endio()
1453 	wait_on_bit_lock_io(&b->state, B_WRITING, TASK_UNINTERRUPTIBLE);  in __write_dirty_buffer()
1494 	wait_on_bit_io(&b->state, B_WRITING, TASK_UNINTERRUPTIBLE);  in __make_buffer_clean()
1502 	if (WARN_ON_ONCE(test_bit(B_WRITING, &b->state)))  in is_clean()
1688 	if (test_bit(B_DIRTY, &b->state) || test_bit(B_WRITING, &b->state))  in cleaned()
1708 	if (wc->no_wait && test_bit(B_WRITING, &b->state))  in write_one()
2045 	    !test_bit(B_WRITING, &b->state) &&  in dm_bufio_release()
2121 	return test_bit(B_WRITING, &b->state);  in is_writing()
2150 			wait_on_bit_io(&b->state, B_WRITING, TASK_UNINTERRUPTIBLE);  in dm_bufio_write_dirty_buffers()
2153 			wait_on_bit_io(&b->state, B_WRITING, TASK_UNINTERRUPTIBLE);  in dm_bufio_write_dirty_buffers()
2156 		if (!test_bit(B_DIRTY, &b->state) && !test_bit(B_WRITING, &b->state))  in dm_bufio_write_dirty_buffers()
2709 		    test_bit(B_WRITING, &b->state) ||  in select_for_evict()