block/partitions/ldm.c

341  * @ldb:   Cache of the database structures
352 				   unsigned long base, struct ldmdb *ldb)
362 	BUG_ON(!state || !ldb);
363 	ph = &ldb->ph;
364 	tb[0] = &ldb->toc;
417  * @ldb:   Cache of the database structures
420  * information in @ldb.
422  * Return:  'true'   @ldb contains validated VBDB info
423  *          'false'  @ldb contents are undefined
426 			      unsigned long base, struct ldmdb *ldb)
434 	BUG_ON (!state || !ldb);
436 	vm  = &ldb->vm;
437 	toc = &ldb->toc;
526  * @ldb:  Cache of the database structures
536 static struct vblk * ldm_get_disk_objid (const struct ldmdb *ldb)
540 	BUG_ON (!ldb);
542 	list_for_each (item, &ldb->v_disk) {
544 		if (uuid_equal(&v->vblk.disk.disk_id, &ldb->ph.disk_id))
554  * @ldb:  Cache of the database structures
569 					const struct ldmdb *ldb)
577 	BUG_ON (!pp || !ldb);
579 	disk = ldm_get_disk_objid (ldb);
588 	list_for_each (item, &ldb->v_part) {
595 		put_partition (pp, part_num, ldb->ph.logical_disk_start +
1145  * @ldb:   Cache of the database structures
1154 static bool ldm_ldmdb_add (u8 *data, int len, struct ldmdb *ldb)
1159 	BUG_ON (!data || !ldb);
1176 		list_add (&vb->list, &ldb->v_dgrp);
1180 		list_add (&vb->list, &ldb->v_disk);
1183 		list_add (&vb->list, &ldb->v_volu);
1186 		list_add (&vb->list, &ldb->v_comp);
1190 		list_for_each (item, &ldb->v_part) {
1198 		list_add_tail (&vb->list, &ldb->v_part);
1299  * @ldb:    Cache of the database structures
1307 static bool ldm_frag_commit (struct list_head *frags, struct ldmdb *ldb)
1312 	BUG_ON (!frags || !ldb);
1323 		if (!ldm_ldmdb_add (f->data, f->num*ldb->vm.vblk_size, ldb))
1333  * @ldb:   Cache of the database structures
1336  * unpacked and validated.  We cache them in @ldb according to their type.
1342 			  struct ldmdb *ldb)
1350 	BUG_ON(!state || !ldb);
1352 	size   = ldb->vm.vblk_size;
1354 	skip   = ldb->vm.vblk_offset >> 9;		/* Bytes to sectors */
1355 	finish = (size * ldb->vm.last_vblk_seq) >> 9;
1372 				if (!ldm_ldmdb_add (data, size, ldb))
1384 	result = ldm_frag_commit (&frags, ldb);	/* Failures, already logged */
1431 	struct ldmdb  *ldb;
1441 	ldb = kmalloc (sizeof (*ldb), GFP_KERNEL);
1442 	if (!ldb) {
1448 	if (!ldm_validate_privheads(state, &ldb->ph))
1452 	base = ldb->ph.config_start;
1455 	if (!ldm_validate_tocblocks(state, base, ldb) ||
1456 	    !ldm_validate_vmdb(state, base, ldb))
1460 	INIT_LIST_HEAD (&ldb->v_dgrp);
1461 	INIT_LIST_HEAD (&ldb->v_disk);
1462 	INIT_LIST_HEAD (&ldb->v_volu);
1463 	INIT_LIST_HEAD (&ldb->v_comp);
1464 	INIT_LIST_HEAD (&ldb->v_part);
1466 	if (!ldm_get_vblks(state, base, ldb)) {
1472 	if (ldm_create_data_partitions(state, ldb)) {
1479 	ldm_free_vblks (&ldb->v_dgrp);
1480 	ldm_free_vblks (&ldb->v_disk);
1481 	ldm_free_vblks (&ldb->v_volu);
1482 	ldm_free_vblks (&ldb->v_comp);
1483 	ldm_free_vblks (&ldb->v_part);
1485 	kfree (ldb);