null_free_device_storage  200 drivers/block/null_blk_main.c static void null_free_device_storage(struct nullb_device *dev, bool is_cache);
null_free_device_storage  425 drivers/block/null_blk_main.c 	null_free_device_storage(dev, false);
null_free_device_storage 1413 drivers/block/null_blk_main.c 		null_free_device_storage(nullb->dev, true);