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path: root/fs/udf/partition.c
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Diffstat (limited to 'fs/udf/partition.c')
-rw-r--r--fs/udf/partition.c67
1 files changed, 40 insertions, 27 deletions
diff --git a/fs/udf/partition.c b/fs/udf/partition.c
index aaab24c8c49..eeb4714b364 100644
--- a/fs/udf/partition.c
+++ b/fs/udf/partition.c
@@ -31,15 +31,18 @@
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)) {
+ struct udf_sb_info *sbi = UDF_SB(sb);
+ struct udf_part_map *map;
+ if (partition >= sbi->s_partitions) {
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);
+ map = &sbi->s_partmaps[partition];
+ if (map->s_partition_func)
+ return map->s_partition_func(sb, block, partition, offset);
else
- return UDF_SB_PARTROOT(sb, partition) + block + offset;
+ return map->s_partition_root + block + offset;
}
uint32_t udf_get_pblock_virt15(struct super_block *sb, uint32_t block,
@@ -49,12 +52,15 @@ uint32_t udf_get_pblock_virt15(struct super_block *sb, uint32_t block,
uint32_t newblock;
uint32_t index;
uint32_t loc;
+ struct udf_sb_info *sbi = UDF_SB(sb);
+ struct udf_part_map *map;
- index = (sb->s_blocksize - UDF_SB_TYPEVIRT(sb,partition).s_start_offset) / sizeof(uint32_t);
+ map = &sbi->s_partmaps[partition];
+ index = (sb->s_blocksize - map->s_type_specific.s_virtual.s_start_offset) / sizeof(uint32_t);
- if (block > UDF_SB_TYPEVIRT(sb,partition).s_num_entries) {
+ if (block > map->s_type_specific.s_virtual.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);
+ block, map->s_type_specific.s_virtual.s_num_entries);
return 0xFFFFFFFF;
}
@@ -64,10 +70,10 @@ uint32_t udf_get_pblock_virt15(struct super_block *sb, uint32_t block,
index = block % (sb->s_blocksize / sizeof(uint32_t));
} else {
newblock = 0;
- index = UDF_SB_TYPEVIRT(sb,partition).s_start_offset / sizeof(uint32_t) + block;
+ index = map->s_type_specific.s_virtual.s_start_offset / sizeof(uint32_t) + block;
}
- loc = udf_block_map(UDF_SB_VAT(sb), newblock);
+ loc = udf_block_map(sbi->s_vat_inode, newblock);
if (!(bh = sb_bread(sb, loc))) {
udf_debug("get_pblock(UDF_VIRTUAL_MAP:%p,%d,%d) VAT: %d[%d]\n",
@@ -79,13 +85,13 @@ uint32_t udf_get_pblock_virt15(struct super_block *sb, uint32_t block,
brelse(bh);
- if (UDF_I_LOCATION(UDF_SB_VAT(sb)).partitionReferenceNum == partition) {
+ if (UDF_I_LOCATION(sbi->s_vat_inode).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,
+ UDF_I_LOCATION(sbi->s_vat_inode).partitionReferenceNum,
offset);
}
@@ -95,16 +101,21 @@ inline uint32_t udf_get_pblock_virt20(struct super_block * sb, uint32_t block,
return udf_get_pblock_virt15(sb, block, partition, offset);
}
-uint32_t udf_get_pblock_spar15(struct super_block * sb, uint32_t block,
+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);
+ struct udf_sb_info *sbi = UDF_SB(sb);
+ struct udf_part_map *map;
+ uint32_t packet;
+
+ map = &sbi->s_partmaps[partition];
+ packet = (block + offset) & ~(map->s_type_specific.s_sparing.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;
+ if (map->s_type_specific.s_sparing.s_spar_map[i] != NULL) {
+ st = (struct sparingTable *)map->s_type_specific.s_sparing.s_spar_map[i]->b_data;
break;
}
}
@@ -115,14 +126,14 @@ uint32_t udf_get_pblock_spar15(struct super_block * sb, uint32_t block,
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));
+ ((block + offset) & (map->s_type_specific.s_sparing.s_packet_len - 1));
} else if (le32_to_cpu(st->mapEntry[i].origLocation) > packet) {
break;
}
}
}
- return UDF_SB_PARTROOT(sb,partition) + block + offset;
+ return map->s_partition_root + block + offset;
}
int udf_relocate_blocks(struct super_block *sb, long old_block, long *new_block)
@@ -132,15 +143,17 @@ int udf_relocate_blocks(struct super_block *sb, long old_block, long *new_block)
struct sparingEntry mapEntry;
uint32_t packet;
int i, j, k, l;
+ struct udf_sb_info *sbi = UDF_SB(sb);
- 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 (i = 0; i < sbi->s_partitions; i++) {
+ struct udf_part_map *map = &sbi->s_partmaps[i];
+ if (old_block > map->s_partition_root &&
+ old_block < map->s_partition_root + map->s_partition_len) {
+ sdata = &map->s_type_specific.s_sparing;
+ packet = (old_block - map->s_partition_root) & ~(sdata->s_packet_len - 1);
for (j = 0; j < 4; j++) {
- if (UDF_SB_TYPESPAR(sb,i).s_spar_map[j] != NULL) {
+ if (map->s_type_specific.s_sparing.s_spar_map[j] != NULL) {
st = (struct sparingTable *)sdata->s_spar_map[j]->b_data;
break;
}
@@ -160,11 +173,11 @@ int udf_relocate_blocks(struct super_block *sb, long old_block, long *new_block)
}
}
*new_block = le32_to_cpu(st->mapEntry[k].mappedLocation) +
- ((old_block - UDF_SB_PARTROOT(sb,i)) & (sdata->s_packet_len - 1));
+ ((old_block - map->s_partition_root) & (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));
+ ((old_block - map->s_partition_root) & (sdata->s_packet_len - 1));
return 0;
} else if (le32_to_cpu(st->mapEntry[k].origLocation) > packet) {
break;
@@ -185,7 +198,7 @@ int udf_relocate_blocks(struct super_block *sb, long old_block, long *new_block)
}
}
*new_block = le32_to_cpu(st->mapEntry[k].mappedLocation) +
- ((old_block - UDF_SB_PARTROOT(sb,i)) & (sdata->s_packet_len - 1));
+ ((old_block - map->s_partition_root) & (sdata->s_packet_len - 1));
return 0;
}
}
@@ -194,7 +207,7 @@ int udf_relocate_blocks(struct super_block *sb, long old_block, long *new_block)
} /* if old_block */
}
- if (i == UDF_SB_NUMPARTS(sb)) {
+ if (i == sbi->s_partitions) {
/* outside of partitions */
/* for now, fail =) */
return 1;
generated by cgit v1.2.3-18-g5258 (git 2.32.0) at 2024-12-02 10:07:39 +0000