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Diffstat (limited to 'fs/udf/partition.c')
-rw-r--r--fs/udf/partition.c119
1 files changed, 51 insertions, 68 deletions
diff --git a/fs/udf/partition.c b/fs/udf/partition.c
index 467a26171cd9..aaab24c8c498 100644
--- a/fs/udf/partition.c
+++ b/fs/udf/partition.c
@@ -14,7 +14,7 @@
*
* HISTORY
*
- * 12/06/98 blf Created file.
+ * 12/06/98 blf Created file.
*
*/
@@ -28,12 +28,12 @@
#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))
- {
+ if (partition >= UDF_SB_NUMPARTS(sb)) {
udf_debug("block=%d, partition=%d, offset=%d: invalid partition\n",
- block, partition, offset);
+ block, partition, offset);
return 0xFFFFFFFF;
}
if (UDF_SB_PARTFUNC(sb, partition))
@@ -42,7 +42,8 @@ inline uint32_t udf_get_pblock(struct super_block *sb, uint32_t block, uint16_t
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;
@@ -51,31 +52,26 @@ uint32_t udf_get_pblock_virt15(struct super_block *sb, uint32_t block, uint16_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)
- {
+ 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);
+ 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;
}
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;
}
@@ -83,50 +79,49 @@ uint32_t udf_get_pblock_virt15(struct super_block *sb, uint32_t block, uint16_t
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);
- for (i=0; i<4; i++)
- {
- if (UDF_SB_TYPESPAR(sb,partition).s_spar_map[i] != NULL)
- {
+ 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)
- {
+ } 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) {
break;
+ }
}
}
+
return UDF_SB_PARTROOT(sb,partition) + block + offset;
}
@@ -138,18 +133,14 @@ 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++)
- {
+ 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))
- {
+ 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)
- {
+ 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;
}
@@ -158,14 +149,10 @@ int udf_relocate_blocks(struct super_block *sb, long old_block, long *new_block)
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])
- {
+ 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));
@@ -175,28 +162,23 @@ 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));
return 0;
- }
- else if (le32_to_cpu(st->mapEntry[k].origLocation) == packet)
- {
+ } 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])
- {
+
+ 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));
+ 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]);
@@ -207,11 +189,12 @@ int udf_relocate_blocks(struct super_block *sb, long old_block, long *new_block)
return 0;
}
}
+
return 1;
- }
+ } /* if old_block */
}
- if (i == UDF_SB_NUMPARTS(sb))
- {
+
+ if (i == UDF_SB_NUMPARTS(sb)) {
/* outside of partitions */
/* for now, fail =) */
return 1;
generated by cgit v1.2.3 (git 2.0.4) at 2024-05-23 09:24:21 +0000