5597 static void rbd_parent_info_cleanup(struct parent_image_info *pii)  in rbd_parent_info_cleanup()  argument
5599 	kfree(pii->pool_ns);  in rbd_parent_info_cleanup()
5600 	kfree(pii->image_id);  in rbd_parent_info_cleanup()
5602 	memset(pii, 0, sizeof(*pii));  in rbd_parent_info_cleanup()
5609 				    struct parent_image_info *pii)  in decode_parent_image_spec()  argument
5620 	ceph_decode_64_safe(p, end, pii->pool_id, e_inval);  in decode_parent_image_spec()
5621 	pii->pool_ns = ceph_extract_encoded_string(p, end, NULL, GFP_KERNEL);  in decode_parent_image_spec()
5622 	if (IS_ERR(pii->pool_ns)) {  in decode_parent_image_spec()
5623 		ret = PTR_ERR(pii->pool_ns);  in decode_parent_image_spec()
5624 		pii->pool_ns = NULL;  in decode_parent_image_spec()
5627 	pii->image_id = ceph_extract_encoded_string(p, end, NULL, GFP_KERNEL);  in decode_parent_image_spec()
5628 	if (IS_ERR(pii->image_id)) {  in decode_parent_image_spec()
5629 		ret = PTR_ERR(pii->image_id);  in decode_parent_image_spec()
5630 		pii->image_id = NULL;  in decode_parent_image_spec()
5633 	ceph_decode_64_safe(p, end, pii->snap_id, e_inval);  in decode_parent_image_spec()
5643 			     struct parent_image_info *pii)  in __get_parent_info()  argument
5658 	ret = decode_parent_image_spec(&p, end, pii);  in __get_parent_info()
5670 	ceph_decode_8_safe(&p, end, pii->has_overlap, e_inval);  in __get_parent_info()
5671 	if (pii->has_overlap)  in __get_parent_info()
5672 		ceph_decode_64_safe(&p, end, pii->overlap, e_inval);  in __get_parent_info()
5675 	     __func__, pii->pool_id, pii->pool_ns, pii->image_id, pii->snap_id,  in __get_parent_info()
5676 	     pii->has_overlap, pii->overlap);  in __get_parent_info()
5689 				    struct parent_image_info *pii)  in __get_parent_info_legacy()  argument
5704 	ceph_decode_64_safe(&p, end, pii->pool_id, e_inval);  in __get_parent_info_legacy()
5705 	pii->image_id = ceph_extract_encoded_string(&p, end, NULL, GFP_KERNEL);  in __get_parent_info_legacy()
5706 	if (IS_ERR(pii->image_id)) {  in __get_parent_info_legacy()
5707 		ret = PTR_ERR(pii->image_id);  in __get_parent_info_legacy()
5708 		pii->image_id = NULL;  in __get_parent_info_legacy()
5711 	ceph_decode_64_safe(&p, end, pii->snap_id, e_inval);  in __get_parent_info_legacy()
5712 	pii->has_overlap = true;  in __get_parent_info_legacy()
5713 	ceph_decode_64_safe(&p, end, pii->overlap, e_inval);  in __get_parent_info_legacy()
5716 	     __func__, pii->pool_id, pii->pool_ns, pii->image_id, pii->snap_id,  in __get_parent_info_legacy()
5717 	     pii->has_overlap, pii->overlap);  in __get_parent_info_legacy()
5725 				  struct parent_image_info *pii)  in rbd_dev_v2_parent_info()  argument
5743 	ret = __get_parent_info(rbd_dev, req_page, reply_page, pii);  in rbd_dev_v2_parent_info()
5746 					       pii);  in rbd_dev_v2_parent_info()
5756 	struct parent_image_info pii = { 0 };  in rbd_dev_setup_parent()  local
5763 	ret = rbd_dev_v2_parent_info(rbd_dev, &pii);  in rbd_dev_setup_parent()
5767 	if (pii.pool_id == CEPH_NOPOOL || !pii.has_overlap)  in rbd_dev_setup_parent()
5773 	if (pii.pool_id > (u64)U32_MAX) {  in rbd_dev_setup_parent()
5775 			(unsigned long long)pii.pool_id, U32_MAX);  in rbd_dev_setup_parent()
5783 	parent_spec->pool_id = pii.pool_id;  in rbd_dev_setup_parent()
5784 	if (pii.pool_ns && *pii.pool_ns) {  in rbd_dev_setup_parent()
5785 		parent_spec->pool_ns = pii.pool_ns;  in rbd_dev_setup_parent()
5786 		pii.pool_ns = NULL;  in rbd_dev_setup_parent()
5788 	parent_spec->image_id = pii.image_id;  in rbd_dev_setup_parent()
5789 	pii.image_id = NULL;  in rbd_dev_setup_parent()
5790 	parent_spec->snap_id = pii.snap_id;  in rbd_dev_setup_parent()
5800 	if (!pii.overlap)  in rbd_dev_setup_parent()
5802 	rbd_dev->parent_overlap = pii.overlap;  in rbd_dev_setup_parent()
5807 	rbd_parent_info_cleanup(&pii);  in rbd_dev_setup_parent()
7014 				  struct parent_image_info *pii)  in rbd_dev_update_parent()  argument
7016 	if (pii->pool_id == CEPH_NOPOOL || !pii->has_overlap) {  in rbd_dev_update_parent()
7043 		if (!pii->overlap && rbd_dev->parent_overlap)  in rbd_dev_update_parent()
7046 		rbd_dev->parent_overlap = pii->overlap;  in rbd_dev_update_parent()
7053 	struct parent_image_info pii = { 0 };  in rbd_dev_refresh()  local
7067 		ret = rbd_dev_v2_parent_info(rbd_dev, &pii);  in rbd_dev_refresh()
7075 		rbd_dev_update_parent(rbd_dev, &pii);  in rbd_dev_refresh()
7079 	rbd_parent_info_cleanup(&pii);  in rbd_dev_refresh()