Lines Matching defs:nd_btt
19 struct nd_btt *nd_btt = to_nd_btt(dev);
22 nd_detach_ndns(&nd_btt->dev, &nd_btt->ndns);
23 ida_simple_remove(&nd_region->btt_ida, nd_btt->id);
24 kfree(nd_btt->uuid);
25 kfree(nd_btt);
28 struct nd_btt *to_nd_btt(struct device *dev)
30 struct nd_btt *nd_btt = container_of(dev, struct nd_btt, dev);
33 return nd_btt;
43 struct nd_btt *nd_btt = to_nd_btt(dev);
45 return nd_size_select_show(nd_btt->lbasize, btt_lbasize_supported, buf);
51 struct nd_btt *nd_btt = to_nd_btt(dev);
56 rc = nd_size_select_store(dev, buf, &nd_btt->lbasize,
70 struct nd_btt *nd_btt = to_nd_btt(dev);
72 if (nd_btt->uuid)
73 return sprintf(buf, "%pUb\n", nd_btt->uuid);
80 struct nd_btt *nd_btt = to_nd_btt(dev);
84 rc = nd_uuid_store(dev, &nd_btt->uuid, buf, len);
96 struct nd_btt *nd_btt = to_nd_btt(dev);
100 rc = sprintf(buf, "%s\n", nd_btt->ndns
101 ? dev_name(&nd_btt->ndns->dev) : "");
109 struct nd_btt *nd_btt = to_nd_btt(dev);
114 rc = nd_namespace_store(dev, &nd_btt->ndns, buf, len);
127 struct nd_btt *nd_btt = to_nd_btt(dev);
132 rc = sprintf(buf, "%llu\n", nd_btt->size);
171 .name = "nd_btt",
186 struct nd_btt *nd_btt;
189 nd_btt = kzalloc(sizeof(*nd_btt), GFP_KERNEL);
190 if (!nd_btt)
193 nd_btt->id = ida_simple_get(&nd_region->btt_ida, 0, 0, GFP_KERNEL);
194 if (nd_btt->id < 0)
197 nd_btt->lbasize = lbasize;
203 nd_btt->uuid = uuid;
204 dev = &nd_btt->dev;
205 dev_set_name(dev, "btt%d.%d", nd_region->id, nd_btt->id);
208 device_initialize(&nd_btt->dev);
209 if (ndns && !__nd_attach_ndns(&nd_btt->dev, ndns, &nd_btt->ndns)) {
218 ida_simple_remove(&nd_region->btt_ida, nd_btt->id);
221 kfree(nd_btt);
235 * @nd_btt: device with BTT geometry and backing device info
245 bool nd_btt_arena_is_valid(struct nd_btt *nd_btt, struct btt_sb *super)
247 const u8 *parent_uuid = nd_dev_to_uuid(&nd_btt->ndns->dev);
265 dev_info(&nd_btt->dev, "Found arena with an error flag\n");
271 int nd_btt_version(struct nd_btt *nd_btt, struct nd_namespace_common *ndns,
276 nd_btt->initial_offset = 0;
277 nd_btt->version_major = 2;
278 nd_btt->version_minor = 0;
281 if (!nd_btt_arena_is_valid(nd_btt, btt_sb))
291 nd_btt->initial_offset = SZ_4K;
292 nd_btt->version_major = 1;
293 nd_btt->version_minor = 1;
296 if (!nd_btt_arena_is_valid(nd_btt, btt_sb))
306 static int __nd_btt_probe(struct nd_btt *nd_btt,
311 if (!btt_sb || !ndns || !nd_btt)
317 rc = nd_btt_version(nd_btt, ndns, btt_sb);
321 nd_btt->lbasize = le32_to_cpu(btt_sb->external_lbasize);
322 nd_btt->uuid = kmemdup(btt_sb->uuid, 16, GFP_KERNEL);
323 if (!nd_btt->uuid)
326 __nd_device_register(&nd_btt->dev);
359 struct nd_btt *nd_btt = to_nd_btt(btt_dev);
361 nd_detach_ndns(btt_dev, &nd_btt->ndns);