ret = dm_table_flush_all(md->map); 
ret = dm_table_flush_all(map); 
static int dm_flush_all(request_queue_t *q, struct gendisk *disk,			sector_t *error_sector){	struct mapped_device *md = q->queuedata;	struct dm_table *map = dm_get_table(md);	int ret = -ENXIO;	if (map) {		ret = dm_table_flush_all(md->map);		dm_table_put(map);	}	return ret;}
4520	/local/tlutelli/issta_data/temp/c/2005_temp/2005/4520/cf222b3769c3759488579441ab724ed33a2da5f4/dm.c/buggy/drivers/md/dm.c