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-rw-r--r--fs/udf/misc.c87
1 files changed, 36 insertions, 51 deletions
diff --git a/fs/udf/misc.c b/fs/udf/misc.c
index a7f5727..15297de 100644
--- a/fs/udf/misc.c
+++ b/fs/udf/misc.c
@@ -54,15 +54,15 @@ struct genericFormat *udf_add_extendedattr(struct inode *inode, uint32_t size,
int i;
ea = UDF_I_DATA(inode);
- if (UDF_I_LENEATTR(inode))
+ if (UDF_I_LENEATTR(inode)) {
ad = UDF_I_DATA(inode) + UDF_I_LENEATTR(inode);
- else {
+ } else {
ad = ea;
size += sizeof(struct extendedAttrHeaderDesc);
}
offset = inode->i_sb->s_blocksize - udf_file_entry_alloc_offset(inode) -
- UDF_I_LENALLOC(inode);
+ UDF_I_LENALLOC(inode);
/* TODO - Check for FreeEASpace */
@@ -76,56 +76,45 @@ struct genericFormat *udf_add_extendedattr(struct inode *inode, uint32_t size,
if (UDF_I_LENEATTR(inode)) {
/* check checksum/crc */
- if (le16_to_cpu(eahd->descTag.tagIdent) !=
- TAG_IDENT_EAHD
- || le32_to_cpu(eahd->descTag.tagLocation) !=
- UDF_I_LOCATION(inode).logicalBlockNum) {
+ if (le16_to_cpu(eahd->descTag.tagIdent) != TAG_IDENT_EAHD ||
+ le32_to_cpu(eahd->descTag.tagLocation) != UDF_I_LOCATION(inode).logicalBlockNum) {
return NULL;
}
} else {
size -= sizeof(struct extendedAttrHeaderDesc);
- UDF_I_LENEATTR(inode) +=
- sizeof(struct extendedAttrHeaderDesc);
+ UDF_I_LENEATTR(inode) += sizeof(struct extendedAttrHeaderDesc);
eahd->descTag.tagIdent = cpu_to_le16(TAG_IDENT_EAHD);
if (UDF_SB_UDFREV(inode->i_sb) >= 0x0200)
eahd->descTag.descVersion = cpu_to_le16(3);
else
eahd->descTag.descVersion = cpu_to_le16(2);
- eahd->descTag.tagSerialNum =
- cpu_to_le16(UDF_SB_SERIALNUM(inode->i_sb));
- eahd->descTag.tagLocation =
- cpu_to_le32(UDF_I_LOCATION(inode).logicalBlockNum);
+ eahd->descTag.tagSerialNum = cpu_to_le16(UDF_SB_SERIALNUM(inode->i_sb));
+ eahd->descTag.tagLocation = cpu_to_le32(UDF_I_LOCATION(inode).logicalBlockNum);
eahd->impAttrLocation = cpu_to_le32(0xFFFFFFFF);
eahd->appAttrLocation = cpu_to_le32(0xFFFFFFFF);
}
offset = UDF_I_LENEATTR(inode);
if (type < 2048) {
- if (le32_to_cpu(eahd->appAttrLocation) <
- UDF_I_LENEATTR(inode)) {
- uint32_t aal =
- le32_to_cpu(eahd->appAttrLocation);
- memmove(&ea[offset - aal + size], &ea[aal],
- offset - aal);
+ if (le32_to_cpu(eahd->appAttrLocation) < UDF_I_LENEATTR(inode)) {
+ uint32_t aal = le32_to_cpu(eahd->appAttrLocation);
+ memmove(&ea[offset - aal + size],
+ &ea[aal], offset - aal);
offset -= aal;
eahd->appAttrLocation = cpu_to_le32(aal + size);
}
- if (le32_to_cpu(eahd->impAttrLocation) <
- UDF_I_LENEATTR(inode)) {
- uint32_t ial =
- le32_to_cpu(eahd->impAttrLocation);
- memmove(&ea[offset - ial + size], &ea[ial],
- offset - ial);
+ if (le32_to_cpu(eahd->impAttrLocation) < UDF_I_LENEATTR(inode)) {
+ uint32_t ial = le32_to_cpu(eahd->impAttrLocation);
+ memmove(&ea[offset - ial + size],
+ &ea[ial], offset - ial);
offset -= ial;
eahd->impAttrLocation = cpu_to_le32(ial + size);
}
} else if (type < 65536) {
- if (le32_to_cpu(eahd->appAttrLocation) <
- UDF_I_LENEATTR(inode)) {
- uint32_t aal =
- le32_to_cpu(eahd->appAttrLocation);
- memmove(&ea[offset - aal + size], &ea[aal],
- offset - aal);
+ if (le32_to_cpu(eahd->appAttrLocation) < UDF_I_LENEATTR(inode)) {
+ uint32_t aal = le32_to_cpu(eahd->appAttrLocation);
+ memmove(&ea[offset - aal + size],
+ &ea[aal], offset - aal);
offset -= aal;
eahd->appAttrLocation = cpu_to_le32(aal + size);
}
@@ -133,18 +122,18 @@ struct genericFormat *udf_add_extendedattr(struct inode *inode, uint32_t size,
/* rewrite CRC + checksum of eahd */
crclen = sizeof(struct extendedAttrHeaderDesc) - sizeof(tag);
eahd->descTag.descCRCLength = cpu_to_le16(crclen);
- eahd->descTag.descCRC =
- cpu_to_le16(udf_crc((char *)eahd + sizeof(tag), crclen, 0));
+ eahd->descTag.descCRC = cpu_to_le16(udf_crc((char *)eahd +
+ sizeof(tag), crclen, 0));
eahd->descTag.tagChecksum = 0;
for (i = 0; i < 16; i++)
if (i != 4)
- eahd->descTag.tagChecksum +=
- ((uint8_t *) & (eahd->descTag))[i];
+ eahd->descTag.tagChecksum += ((uint8_t *)&(eahd->descTag))[i];
UDF_I_LENEATTR(inode) += size;
return (struct genericFormat *)&ea[offset];
}
if (loc & 0x02) {
}
+
return NULL;
}
@@ -163,8 +152,7 @@ struct genericFormat *udf_get_extendedattr(struct inode *inode, uint32_t type,
/* check checksum/crc */
if (le16_to_cpu(eahd->descTag.tagIdent) != TAG_IDENT_EAHD ||
- le32_to_cpu(eahd->descTag.tagLocation) !=
- UDF_I_LOCATION(inode).logicalBlockNum) {
+ le32_to_cpu(eahd->descTag.tagLocation) != UDF_I_LOCATION(inode).logicalBlockNum) {
return NULL;
}
@@ -177,13 +165,13 @@ struct genericFormat *udf_get_extendedattr(struct inode *inode, uint32_t type,
while (offset < UDF_I_LENEATTR(inode)) {
gaf = (struct genericFormat *)&ea[offset];
- if (le32_to_cpu(gaf->attrType) == type
- && gaf->attrSubtype == subtype)
+ if (le32_to_cpu(gaf->attrType) == type && gaf->attrSubtype == subtype)
return gaf;
else
offset += le32_to_cpu(gaf->attrLength);
}
}
+
return NULL;
}
@@ -216,23 +204,22 @@ struct buffer_head *udf_read_tagged(struct super_block *sb, uint32_t block,
return NULL;
}
- tag_p = (tag *) (bh->b_data);
+ tag_p = (tag *)(bh->b_data);
*ident = le16_to_cpu(tag_p->tagIdent);
if (location != le32_to_cpu(tag_p->tagLocation)) {
udf_debug("location mismatch block %u, tag %u != %u\n",
- block + UDF_SB_SESSION(sb),
- le32_to_cpu(tag_p->tagLocation), location);
+ block + UDF_SB_SESSION(sb), le32_to_cpu(tag_p->tagLocation), location);
goto error_out;
}
/* Verify the tag checksum */
checksum = 0U;
for (i = 0; i < 4; i++)
- checksum += (uint8_t) (bh->b_data[i]);
+ checksum += (uint8_t)(bh->b_data[i]);
for (i = 5; i < 16; i++)
- checksum += (uint8_t) (bh->b_data[i]);
+ checksum += (uint8_t)(bh->b_data[i]);
if (checksum != tag_p->tagChecksum) {
printk(KERN_ERR "udf: tag checksum failed block %d\n", block);
goto error_out;
@@ -249,16 +236,14 @@ struct buffer_head *udf_read_tagged(struct super_block *sb, uint32_t block,
/* Verify the descriptor CRC */
if (le16_to_cpu(tag_p->descCRCLength) + sizeof(tag) > sb->s_blocksize ||
le16_to_cpu(tag_p->descCRC) == udf_crc(bh->b_data + sizeof(tag),
- le16_to_cpu(tag_p->
- descCRCLength),
- 0)) {
+ le16_to_cpu(tag_p->descCRCLength), 0)) {
return bh;
}
udf_debug("Crc failure block %d: crc = %d, crclen = %d\n",
block + UDF_SB_SESSION(sb), le16_to_cpu(tag_p->descCRC),
le16_to_cpu(tag_p->descCRCLength));
- error_out:
+error_out:
brelse(bh);
return NULL;
}
@@ -272,7 +257,7 @@ struct buffer_head *udf_read_ptagged(struct super_block *sb, kernel_lb_addr loc,
void udf_update_tag(char *data, int length)
{
- tag *tptr = (tag *) data;
+ tag *tptr = (tag *)data;
int i;
length -= sizeof(tag);
@@ -283,13 +268,13 @@ void udf_update_tag(char *data, int length)
for (i = 0; i < 16; i++)
if (i != 4)
- tptr->tagChecksum += (uint8_t) (data[i]);
+ tptr->tagChecksum += (uint8_t)(data[i]);
}
void udf_new_tag(char *data, uint16_t ident, uint16_t version, uint16_t snum,
uint32_t loc, int length)
{
- tag *tptr = (tag *) data;
+ tag *tptr = (tag *)data;
tptr->tagIdent = cpu_to_le16(ident);
tptr->descVersion = cpu_to_le16(version);
tptr->tagSerialNum = cpu_to_le16(snum);
generated by cgit v1.1 at 2024-12-26 13:30:26 +0000