#include <linux/slab.h>
#include <linux/buffer_head.h>
-inline uint32_t udf_get_pblock(struct super_block *sb, uint32_t block, uint16_t partition, uint32_t offset)
+inline uint32_t udf_get_pblock(struct super_block *sb, uint32_t block,
+ uint16_t partition, uint32_t offset)
{
- if (partition >= UDF_SB_NUMPARTS(sb))
- {
- udf_debug("block=%d, partition=%d, offset=%d: invalid partition\n",
- block, partition, offset);
+ if (partition >= UDF_SB_NUMPARTS(sb)) {
+ udf_debug
+ ("block=%d, partition=%d, offset=%d: invalid partition\n",
+ block, partition, offset);
return 0xFFFFFFFF;
}
if (UDF_SB_PARTFUNC(sb, partition))
- return UDF_SB_PARTFUNC(sb, partition)(sb, block, partition, offset);
+ return UDF_SB_PARTFUNC(sb, partition) (sb, block, partition,
+ offset);
else
return UDF_SB_PARTROOT(sb, partition) + block + offset;
}
-uint32_t udf_get_pblock_virt15(struct super_block *sb, uint32_t block, uint16_t partition, uint32_t offset)
+uint32_t udf_get_pblock_virt15(struct super_block * sb, uint32_t block,
+ uint16_t partition, uint32_t offset)
{
struct buffer_head *bh = NULL;
uint32_t newblock;
uint32_t index;
uint32_t loc;
- index = (sb->s_blocksize - UDF_SB_TYPEVIRT(sb,partition).s_start_offset) / sizeof(uint32_t);
+ index =
+ (sb->s_blocksize -
+ UDF_SB_TYPEVIRT(sb, partition).s_start_offset) / sizeof(uint32_t);
- if (block > UDF_SB_TYPEVIRT(sb,partition).s_num_entries)
- {
- udf_debug("Trying to access block beyond end of VAT (%d max %d)\n",
- block, UDF_SB_TYPEVIRT(sb,partition).s_num_entries);
+ if (block > UDF_SB_TYPEVIRT(sb, partition).s_num_entries) {
+ udf_debug
+ ("Trying to access block beyond end of VAT (%d max %d)\n",
+ block, UDF_SB_TYPEVIRT(sb, partition).s_num_entries);
return 0xFFFFFFFF;
}
- if (block >= index)
- {
+ if (block >= index) {
block -= index;
newblock = 1 + (block / (sb->s_blocksize / sizeof(uint32_t)));
index = block % (sb->s_blocksize / sizeof(uint32_t));
- }
- else
- {
+ } else {
newblock = 0;
- index = UDF_SB_TYPEVIRT(sb,partition).s_start_offset / sizeof(uint32_t) + block;
+ index =
+ UDF_SB_TYPEVIRT(sb,
+ partition).s_start_offset /
+ sizeof(uint32_t) + block;
}
loc = udf_block_map(UDF_SB_VAT(sb), newblock);
- if (!(bh = sb_bread(sb, loc)))
- {
+ if (!(bh = sb_bread(sb, loc))) {
udf_debug("get_pblock(UDF_VIRTUAL_MAP:%p,%d,%d) VAT: %d[%d]\n",
- sb, block, partition, loc, index);
+ sb, block, partition, loc, index);
return 0xFFFFFFFF;
}
- loc = le32_to_cpu(((__le32 *)bh->b_data)[index]);
+ loc = le32_to_cpu(((__le32 *) bh->b_data)[index]);
brelse(bh);
- if (UDF_I_LOCATION(UDF_SB_VAT(sb)).partitionReferenceNum == partition)
- {
+ if (UDF_I_LOCATION(UDF_SB_VAT(sb)).partitionReferenceNum == partition) {
udf_debug("recursive call to udf_get_pblock!\n");
return 0xFFFFFFFF;
}
- return udf_get_pblock(sb, loc, UDF_I_LOCATION(UDF_SB_VAT(sb)).partitionReferenceNum, offset);
+ return udf_get_pblock(sb, loc,
+ UDF_I_LOCATION(UDF_SB_VAT(sb)).
+ partitionReferenceNum, offset);
}
-inline uint32_t udf_get_pblock_virt20(struct super_block *sb, uint32_t block, uint16_t partition, uint32_t offset)
+inline uint32_t udf_get_pblock_virt20(struct super_block * sb, uint32_t block,
+ uint16_t partition, uint32_t offset)
{
return udf_get_pblock_virt15(sb, block, partition, offset);
}
-uint32_t udf_get_pblock_spar15(struct super_block *sb, uint32_t block, uint16_t partition, uint32_t offset)
+uint32_t udf_get_pblock_spar15(struct super_block * sb, uint32_t block,
+ uint16_t partition, uint32_t offset)
{
int i;
struct sparingTable *st = NULL;
- uint32_t packet = (block + offset) & ~(UDF_SB_TYPESPAR(sb,partition).s_packet_len - 1);
+ uint32_t packet =
+ (block + offset) & ~(UDF_SB_TYPESPAR(sb, partition).s_packet_len -
+ 1);
- for (i=0; i<4; i++)
- {
- if (UDF_SB_TYPESPAR(sb,partition).s_spar_map[i] != NULL)
- {
- st = (struct sparingTable *)UDF_SB_TYPESPAR(sb,partition).s_spar_map[i]->b_data;
+ for (i = 0; i < 4; i++) {
+ if (UDF_SB_TYPESPAR(sb, partition).s_spar_map[i] != NULL) {
+ st = (struct sparingTable *)UDF_SB_TYPESPAR(sb,
+ partition).
+ s_spar_map[i]->b_data;
break;
}
}
- if (st)
- {
- for (i=0; i<le16_to_cpu(st->reallocationTableLen); i++)
- {
- if (le32_to_cpu(st->mapEntry[i].origLocation) >= 0xFFFFFFF0)
+ if (st) {
+ for (i = 0; i < le16_to_cpu(st->reallocationTableLen); i++) {
+ if (le32_to_cpu(st->mapEntry[i].origLocation) >=
+ 0xFFFFFFF0)
break;
- else if (le32_to_cpu(st->mapEntry[i].origLocation) == packet)
- {
- return le32_to_cpu(st->mapEntry[i].mappedLocation) +
- ((block + offset) & (UDF_SB_TYPESPAR(sb,partition).s_packet_len - 1));
- }
- else if (le32_to_cpu(st->mapEntry[i].origLocation) > packet)
+ else if (le32_to_cpu(st->mapEntry[i].origLocation) ==
+ packet) {
+ return le32_to_cpu(st->mapEntry[i].
+ mappedLocation) + ((block +
+ offset) &
+ (UDF_SB_TYPESPAR
+ (sb,
+ partition).
+ s_packet_len
+ - 1));
+ } else if (le32_to_cpu(st->mapEntry[i].origLocation) >
+ packet)
break;
}
}
- return UDF_SB_PARTROOT(sb,partition) + block + offset;
+ return UDF_SB_PARTROOT(sb, partition) + block + offset;
}
int udf_relocate_blocks(struct super_block *sb, long old_block, long *new_block)
uint32_t packet;
int i, j, k, l;
- for (i=0; i<UDF_SB_NUMPARTS(sb); i++)
- {
- if (old_block > UDF_SB_PARTROOT(sb,i) &&
- old_block < UDF_SB_PARTROOT(sb,i) + UDF_SB_PARTLEN(sb,i))
+ for (i = 0; i < UDF_SB_NUMPARTS(sb); i++) {
+ if (old_block > UDF_SB_PARTROOT(sb, i) &&
+ old_block < UDF_SB_PARTROOT(sb, i) + UDF_SB_PARTLEN(sb, i))
{
- sdata = &UDF_SB_TYPESPAR(sb,i);
- packet = (old_block - UDF_SB_PARTROOT(sb,i)) & ~(sdata->s_packet_len - 1);
-
- for (j=0; j<4; j++)
- {
- if (UDF_SB_TYPESPAR(sb,i).s_spar_map[j] != NULL)
- {
- st = (struct sparingTable *)sdata->s_spar_map[j]->b_data;
+ sdata = &UDF_SB_TYPESPAR(sb, i);
+ packet =
+ (old_block -
+ UDF_SB_PARTROOT(sb,
+ i)) & ~(sdata->s_packet_len - 1);
+
+ for (j = 0; j < 4; j++) {
+ if (UDF_SB_TYPESPAR(sb, i).s_spar_map[j] !=
+ NULL) {
+ st = (struct sparingTable *)sdata->
+ s_spar_map[j]->b_data;
break;
}
}
if (!st)
return 1;
- for (k=0; k<le16_to_cpu(st->reallocationTableLen); k++)
- {
- if (le32_to_cpu(st->mapEntry[k].origLocation) == 0xFFFFFFFF)
- {
- for (; j<4; j++)
- {
- if (sdata->s_spar_map[j])
- {
- st = (struct sparingTable *)sdata->s_spar_map[j]->b_data;
- st->mapEntry[k].origLocation = cpu_to_le32(packet);
- udf_update_tag((char *)st, sizeof(struct sparingTable) + le16_to_cpu(st->reallocationTableLen) * sizeof(struct sparingEntry));
- mark_buffer_dirty(sdata->s_spar_map[j]);
+ for (k = 0; k < le16_to_cpu(st->reallocationTableLen);
+ k++) {
+ if (le32_to_cpu(st->mapEntry[k].origLocation) ==
+ 0xFFFFFFFF) {
+ for (; j < 4; j++) {
+ if (sdata->s_spar_map[j]) {
+ st = (struct
+ sparingTable *)
+ sdata->
+ s_spar_map[j]->
+ b_data;
+ st->mapEntry[k].
+ origLocation =
+ cpu_to_le32(packet);
+ udf_update_tag((char *)
+ st,
+ sizeof
+ (struct
+ sparingTable)
+ +
+ le16_to_cpu
+ (st->
+ reallocationTableLen)
+ *
+ sizeof
+ (struct
+ sparingEntry));
+ mark_buffer_dirty
+ (sdata->
+ s_spar_map[j]);
}
}
- *new_block = le32_to_cpu(st->mapEntry[k].mappedLocation) +
- ((old_block - UDF_SB_PARTROOT(sb,i)) & (sdata->s_packet_len - 1));
+ *new_block =
+ le32_to_cpu(st->mapEntry[k].
+ mappedLocation) +
+ ((old_block -
+ UDF_SB_PARTROOT(sb,
+ i)) & (sdata->
+ s_packet_len
+ - 1));
return 0;
- }
- else if (le32_to_cpu(st->mapEntry[k].origLocation) == packet)
- {
- *new_block = le32_to_cpu(st->mapEntry[k].mappedLocation) +
- ((old_block - UDF_SB_PARTROOT(sb,i)) & (sdata->s_packet_len - 1));
+ } else
+ if (le32_to_cpu
+ (st->mapEntry[k].origLocation) ==
+ packet) {
+ *new_block =
+ le32_to_cpu(st->mapEntry[k].
+ mappedLocation) +
+ ((old_block -
+ UDF_SB_PARTROOT(sb,
+ i)) & (sdata->
+ s_packet_len
+ - 1));
return 0;
- }
- else if (le32_to_cpu(st->mapEntry[k].origLocation) > packet)
+ } else
+ if (le32_to_cpu
+ (st->mapEntry[k].origLocation) > packet)
break;
}
- for (l=k; l<le16_to_cpu(st->reallocationTableLen); l++)
- {
- if (le32_to_cpu(st->mapEntry[l].origLocation) == 0xFFFFFFFF)
- {
- for (; j<4; j++)
- {
- if (sdata->s_spar_map[j])
- {
- st = (struct sparingTable *)sdata->s_spar_map[j]->b_data;
- mapEntry = st->mapEntry[l];
- mapEntry.origLocation = cpu_to_le32(packet);
- memmove(&st->mapEntry[k+1], &st->mapEntry[k], (l-k)*sizeof(struct sparingEntry));
- st->mapEntry[k] = mapEntry;
- udf_update_tag((char *)st, sizeof(struct sparingTable) + le16_to_cpu(st->reallocationTableLen) * sizeof(struct sparingEntry));
- mark_buffer_dirty(sdata->s_spar_map[j]);
+ for (l = k; l < le16_to_cpu(st->reallocationTableLen);
+ l++) {
+ if (le32_to_cpu(st->mapEntry[l].origLocation) ==
+ 0xFFFFFFFF) {
+ for (; j < 4; j++) {
+ if (sdata->s_spar_map[j]) {
+ st = (struct
+ sparingTable *)
+ sdata->
+ s_spar_map[j]->
+ b_data;
+ mapEntry =
+ st->mapEntry[l];
+ mapEntry.origLocation =
+ cpu_to_le32(packet);
+ memmove(&st->
+ mapEntry[k + 1],
+ &st->
+ mapEntry[k],
+ (l -
+ k) *
+ sizeof(struct
+ sparingEntry));
+ st->mapEntry[k] =
+ mapEntry;
+ udf_update_tag((char *)
+ st,
+ sizeof
+ (struct
+ sparingTable)
+ +
+ le16_to_cpu
+ (st->
+ reallocationTableLen)
+ *
+ sizeof
+ (struct
+ sparingEntry));
+ mark_buffer_dirty
+ (sdata->
+ s_spar_map[j]);
}
}
- *new_block = le32_to_cpu(st->mapEntry[k].mappedLocation) +
- ((old_block - UDF_SB_PARTROOT(sb,i)) & (sdata->s_packet_len - 1));
+ *new_block =
+ le32_to_cpu(st->mapEntry[k].
+ mappedLocation) +
+ ((old_block -
+ UDF_SB_PARTROOT(sb,
+ i)) & (sdata->
+ s_packet_len
+ - 1));
return 0;
}
}
return 1;
}
}
- if (i == UDF_SB_NUMPARTS(sb))
- {
+ if (i == UDF_SB_NUMPARTS(sb)) {
/* outside of partitions */
/* for now, fail =) */
return 1;
git.openpandora.org / pandora-kernel.git / blobdiff