19 	struct nd_btt *nd_btt = to_nd_btt(dev);  in nd_btt_release()  local
22 	nd_detach_ndns(&nd_btt->dev, &nd_btt->ndns);  in nd_btt_release()
23 	ida_simple_remove(&nd_region->btt_ida, nd_btt->id);  in nd_btt_release()
24 	kfree(nd_btt->uuid);  in nd_btt_release()
25 	kfree(nd_btt);  in nd_btt_release()
39 struct nd_btt *to_nd_btt(struct device *dev)  in to_nd_btt()
41 	struct nd_btt *nd_btt = container_of(dev, struct nd_btt, dev);  in to_nd_btt()  local
44 	return nd_btt;  in to_nd_btt()
54 	struct nd_btt *nd_btt = to_nd_btt(dev);  in sector_size_show()  local
56 	return nd_size_select_show(nd_btt->lbasize, btt_lbasize_supported, buf);  in sector_size_show()
62 	struct nd_btt *nd_btt = to_nd_btt(dev);  in sector_size_store()  local
67 	rc = nd_size_select_store(dev, buf, &nd_btt->lbasize,  in sector_size_store()
81 	struct nd_btt *nd_btt = to_nd_btt(dev);  in uuid_show()  local
83 	if (nd_btt->uuid)  in uuid_show()
84 		return sprintf(buf, "%pUb\n", nd_btt->uuid);  in uuid_show()
91 	struct nd_btt *nd_btt = to_nd_btt(dev);  in uuid_store()  local
95 	rc = nd_uuid_store(dev, &nd_btt->uuid, buf, len);  in uuid_store()
107 	struct nd_btt *nd_btt = to_nd_btt(dev);  in namespace_show()  local
111 	rc = sprintf(buf, "%s\n", nd_btt->ndns  in namespace_show()
112 			? dev_name(&nd_btt->ndns->dev) : "");  in namespace_show()
120 	struct nd_btt *nd_btt = to_nd_btt(dev);  in namespace_store()  local
125 	rc = nd_namespace_store(dev, &nd_btt->ndns, buf, len);  in namespace_store()
138 	struct nd_btt *nd_btt = to_nd_btt(dev);  in size_show()  local
143 		rc = sprintf(buf, "%llu\n", nd_btt->size);  in size_show()
185 	struct nd_btt *nd_btt;  in __nd_btt_create()  local
188 	nd_btt = kzalloc(sizeof(*nd_btt), GFP_KERNEL);  in __nd_btt_create()
189 	if (!nd_btt)  in __nd_btt_create()
192 	nd_btt->id = ida_simple_get(&nd_region->btt_ida, 0, 0, GFP_KERNEL);  in __nd_btt_create()
193 	if (nd_btt->id < 0)  in __nd_btt_create()
196 	nd_btt->lbasize = lbasize;  in __nd_btt_create()
202 	nd_btt->uuid = uuid;  in __nd_btt_create()
203 	dev = &nd_btt->dev;  in __nd_btt_create()
204 	dev_set_name(dev, "btt%d.%d", nd_region->id, nd_btt->id);  in __nd_btt_create()
208 	device_initialize(&nd_btt->dev);  in __nd_btt_create()
209 	if (ndns && !__nd_attach_ndns(&nd_btt->dev, ndns, &nd_btt->ndns)) {  in __nd_btt_create()
218 	ida_simple_remove(&nd_region->btt_ida, nd_btt->id);  in __nd_btt_create()
221 	kfree(nd_btt);  in __nd_btt_create()
245 bool nd_btt_arena_is_valid(struct nd_btt *nd_btt, struct btt_sb *super)  in nd_btt_arena_is_valid()  argument
247 	const u8 *parent_uuid = nd_dev_to_uuid(&nd_btt->ndns->dev);  in nd_btt_arena_is_valid()
265 		dev_info(&nd_btt->dev, "Found arena with an error flag\n");  in nd_btt_arena_is_valid()
271 int nd_btt_version(struct nd_btt *nd_btt, struct nd_namespace_common *ndns,  in nd_btt_version()  argument
276 		nd_btt->initial_offset = 0;  in nd_btt_version()
277 		nd_btt->version_major = 2;  in nd_btt_version()
278 		nd_btt->version_minor = 0;  in nd_btt_version()
281 		if (!nd_btt_arena_is_valid(nd_btt, btt_sb))  in nd_btt_version()
291 		nd_btt->initial_offset = SZ_4K;  in nd_btt_version()
292 		nd_btt->version_major = 1;  in nd_btt_version()
293 		nd_btt->version_minor = 1;  in nd_btt_version()
296 		if (!nd_btt_arena_is_valid(nd_btt, btt_sb))  in nd_btt_version()
306 static int __nd_btt_probe(struct nd_btt *nd_btt,  in __nd_btt_probe()  argument
311 	if (!btt_sb || !ndns || !nd_btt)  in __nd_btt_probe()
317 	rc = nd_btt_version(nd_btt, ndns, btt_sb);  in __nd_btt_probe()
321 	nd_btt->lbasize = le32_to_cpu(btt_sb->external_lbasize);  in __nd_btt_probe()
322 	nd_btt->uuid = kmemdup(btt_sb->uuid, 16, GFP_KERNEL);  in __nd_btt_probe()
323 	if (!nd_btt->uuid)  in __nd_btt_probe()
326 	__nd_device_register(&nd_btt->dev);  in __nd_btt_probe()
359 		struct nd_btt *nd_btt = to_nd_btt(btt_dev);  in nd_btt_probe()  local
361 		nd_detach_ndns(btt_dev, &nd_btt->ndns);  in nd_btt_probe()