40 int dasd_gendisk_alloc(struct dasd_block *block)  in dasd_gendisk_alloc()  argument
47 	base = block->base;  in dasd_gendisk_alloc()
51 	block->tag_set.ops = &dasd_mq_ops;  in dasd_gendisk_alloc()
52 	block->tag_set.cmd_size = sizeof(struct dasd_ccw_req);  in dasd_gendisk_alloc()
53 	block->tag_set.nr_hw_queues = nr_hw_queues;  in dasd_gendisk_alloc()
54 	block->tag_set.queue_depth = queue_depth;  in dasd_gendisk_alloc()
55 	block->tag_set.flags = BLK_MQ_F_SHOULD_MERGE;  in dasd_gendisk_alloc()
56 	block->tag_set.numa_node = NUMA_NO_NODE;  in dasd_gendisk_alloc()
57 	rc = blk_mq_alloc_tag_set(&block->tag_set);  in dasd_gendisk_alloc()
61 	gdp = blk_mq_alloc_disk(&block->tag_set, block);  in dasd_gendisk_alloc()
63 		blk_mq_free_tag_set(&block->tag_set);  in dasd_gendisk_alloc()
99 	block->gdp = gdp;  in dasd_gendisk_alloc()
100 	set_capacity(block->gdp, 0);  in dasd_gendisk_alloc()
102 	rc = device_add_disk(&base->cdev->dev, block->gdp, NULL);  in dasd_gendisk_alloc()
104 		dasd_gendisk_free(block);  in dasd_gendisk_alloc()
114 void dasd_gendisk_free(struct dasd_block *block)  in dasd_gendisk_free()  argument
116 	if (block->gdp) {  in dasd_gendisk_free()
117 		del_gendisk(block->gdp);  in dasd_gendisk_free()
118 		block->gdp->private_data = NULL;  in dasd_gendisk_free()
119 		put_disk(block->gdp);  in dasd_gendisk_free()
120 		block->gdp = NULL;  in dasd_gendisk_free()
121 		blk_mq_free_tag_set(&block->tag_set);  in dasd_gendisk_free()
128 int dasd_scan_partitions(struct dasd_block *block)  in dasd_scan_partitions()  argument
133 	bdev = blkdev_get_by_dev(disk_devt(block->gdp), BLK_OPEN_READ, NULL,  in dasd_scan_partitions()
136 		DBF_DEV_EVENT(DBF_ERR, block->base,  in dasd_scan_partitions()
142 	mutex_lock(&block->gdp->open_mutex);  in dasd_scan_partitions()
143 	rc = bdev_disk_changed(block->gdp, false);  in dasd_scan_partitions()
144 	mutex_unlock(&block->gdp->open_mutex);  in dasd_scan_partitions()
146 		DBF_DEV_EVENT(DBF_ERR, block->base,  in dasd_scan_partitions()
159 	block->bdev = bdev;  in dasd_scan_partitions()
167 void dasd_destroy_partitions(struct dasd_block *block)  in dasd_destroy_partitions()  argument
175 	bdev = block->bdev;  in dasd_destroy_partitions()
176 	block->bdev = NULL;  in dasd_destroy_partitions()