ldm_get_vblks

Name:ldm_get_vblks - Read the on-disk database of VBLKs into memory*@state: Partition check state including device holding the LDM Database*@base: Offset, into @state->bdev, of the database*@ldb: Cache of the database structures* To use the information from

Proto:static bool ldm_get_vblks(struct parsed_partitions *state, unsigned long base, struct ldmdb *ldb)

Type:bool

Parameter:

Type	Parameter	Name
struct parsed_partitions *	state
unsigned long	base
struct ldmdb *	ldb

1356

u8 * data = NULL

1358

bool result = false

1359

LIST_HEAD(frags)

1361

BUG_ON(!state || !ldb)

1363

size = vblk_size

1364

perbuf = 512 / size

1365

skip = vblk_offset >> 9

1366

finish = size * last_vblk_seq >> 9

1368

When s < finish cycle

1369

data = read_part_sector(state, base + List of partitions. + s, & sect)

1370

If Not data Then

1371

ldm_crit("Disk read failed.")

1372

Go to out

1375

When v < perbuf cycle

1376

If VBLK != get_unaligned_be32(data) Then

1377

ldm_error("Expected to find a VBLK.")

1378

Go to out

1381

recs = get_unaligned_be16(data + 0x0E)

1382

If recs == 1 Then

1383

If Not ldm_ldmdb_add - Adds a raw VBLK entry to the ldmdb database*@data: Raw VBLK to add to the database*@len: Size of the raw VBLK*@ldb: Cache of the database structures* The VBLKs are sorted into categories. Partitions are also sorted by offset.* N Then Go to out

1385

Else if recs > 1 Then

1386

If Not ldm_frag_add - Add a VBLK fragment to a list*@data: Raw fragment to be added to the list*@size: Size of the raw fragment*@frags: Linked list of VBLK fragments* Fragmented VBLKs may not be consecutive in the database, so they are placed Then Go to out

1391

put_dev_sector(sect)

1392

data = NULL

1395

result = ldm_frag_commit - Validate fragmented VBLKs and add them to the database*@frags: Linked list of VBLK fragments*@ldb: Cache of the database structures* Now that all the fragmented VBLKs have been collected, they must be added to* the database for later use

1396

out :

1397

If data Then put_dev_sector(sect)

1399

ldm_frag_free - Free a linked list of VBLK fragments*@list: Linked list of fragments* Free a linked list of VBLK fragments* Return: none

1401

Return result

**Caller**
Name	Describe
ldm_partition	ldm_partition - Find out whether a device is a dynamic disk and handle it@state: Partition check state including device holding the LDM Database This determines whether the device @bdev is a dynamic disk and if so creates

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