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-rw-r--r--fs/udf/namei.c410
1 files changed, 181 insertions, 229 deletions
diff --git a/fs/udf/namei.c b/fs/udf/namei.c
index 334d363a090..bec96a6b334 100644
--- a/fs/udf/namei.c
+++ b/fs/udf/namei.c
@@ -37,6 +37,7 @@ static inline int udf_match(int len1, const char *name1, int len2,
{
if (len1 != len2)
return 0;
+
return !memcmp(name1, name2, len1);
}
@@ -52,7 +53,7 @@ int udf_write_fi(struct inode *inode, struct fileIdentDesc *cfi,
uint16_t liu = le16_to_cpu(cfi->lengthOfImpUse);
uint8_t lfi = cfi->lengthFileIdent;
int padlen = fibh->eoffset - fibh->soffset - liu - lfi -
- sizeof(struct fileIdentDesc);
+ sizeof(struct fileIdentDesc);
int adinicb = 0;
if (UDF_I_ALLOCTYPE(inode) == ICBTAG_FLAG_AD_IN_ICB)
@@ -61,85 +62,75 @@ int udf_write_fi(struct inode *inode, struct fileIdentDesc *cfi,
offset = fibh->soffset + sizeof(struct fileIdentDesc);
if (impuse) {
- if (adinicb || (offset + liu < 0))
- memcpy((uint8_t *) sfi->impUse, impuse, liu);
- else if (offset >= 0)
+ if (adinicb || (offset + liu < 0)) {
+ memcpy((uint8_t *)sfi->impUse, impuse, liu);
+ } else if (offset >= 0) {
memcpy(fibh->ebh->b_data + offset, impuse, liu);
- else {
- memcpy((uint8_t *) sfi->impUse, impuse, -offset);
- memcpy(fibh->ebh->b_data, impuse - offset,
- liu + offset);
+ } else {
+ memcpy((uint8_t *)sfi->impUse, impuse, -offset);
+ memcpy(fibh->ebh->b_data, impuse - offset, liu + offset);
}
}
offset += liu;
if (fileident) {
- if (adinicb || (offset + lfi < 0))
- memcpy((uint8_t *) sfi->fileIdent + liu, fileident,
- lfi);
- else if (offset >= 0)
+ if (adinicb || (offset + lfi < 0)) {
+ memcpy((uint8_t *)sfi->fileIdent + liu, fileident, lfi);
+ } else if (offset >= 0) {
memcpy(fibh->ebh->b_data + offset, fileident, lfi);
- else {
- memcpy((uint8_t *) sfi->fileIdent + liu, fileident,
- -offset);
- memcpy(fibh->ebh->b_data, fileident - offset,
- lfi + offset);
+ } else {
+ memcpy((uint8_t *)sfi->fileIdent + liu, fileident, -offset);
+ memcpy(fibh->ebh->b_data, fileident - offset, lfi + offset);
}
}
offset += lfi;
- if (adinicb || (offset + padlen < 0))
- memset((uint8_t *) sfi->padding + liu + lfi, 0x00, padlen);
- else if (offset >= 0)
+ if (adinicb || (offset + padlen < 0)) {
+ memset((uint8_t *)sfi->padding + liu + lfi, 0x00, padlen);
+ } else if (offset >= 0) {
memset(fibh->ebh->b_data + offset, 0x00, padlen);
- else {
- memset((uint8_t *) sfi->padding + liu + lfi, 0x00, -offset);
+ } else {
+ memset((uint8_t *)sfi->padding + liu + lfi, 0x00, -offset);
memset(fibh->ebh->b_data, 0x00, padlen + offset);
}
- crc =
- udf_crc((uint8_t *) cfi + sizeof(tag),
- sizeof(struct fileIdentDesc) - sizeof(tag), 0);
-
- if (fibh->sbh == fibh->ebh)
- crc = udf_crc((uint8_t *) sfi->impUse,
- crclen + sizeof(tag) -
- sizeof(struct fileIdentDesc), crc);
- else if (sizeof(struct fileIdentDesc) >= -fibh->soffset)
- crc =
- udf_crc(fibh->ebh->b_data + sizeof(struct fileIdentDesc) +
- fibh->soffset,
- crclen + sizeof(tag) - sizeof(struct fileIdentDesc),
- crc);
- else {
- crc = udf_crc((uint8_t *) sfi->impUse,
- -fibh->soffset - sizeof(struct fileIdentDesc),
- crc);
+ crc = udf_crc((uint8_t *)cfi + sizeof(tag),
+ sizeof(struct fileIdentDesc) - sizeof(tag), 0);
+
+ if (fibh->sbh == fibh->ebh) {
+ crc = udf_crc((uint8_t *)sfi->impUse,
+ crclen + sizeof(tag) - sizeof(struct fileIdentDesc), crc);
+ } else if (sizeof(struct fileIdentDesc) >= -fibh->soffset) {
+ crc = udf_crc(fibh->ebh->b_data + sizeof(struct fileIdentDesc) + fibh->soffset,
+ crclen + sizeof(tag) - sizeof(struct fileIdentDesc), crc);
+ } else {
+ crc = udf_crc((uint8_t *)sfi->impUse,
+ -fibh->soffset - sizeof(struct fileIdentDesc), crc);
crc = udf_crc(fibh->ebh->b_data, fibh->eoffset, crc);
}
cfi->descTag.descCRC = cpu_to_le16(crc);
cfi->descTag.descCRCLength = cpu_to_le16(crclen);
- for (i = 0; i < 16; i++)
+ for (i = 0; i < 16; i++) {
if (i != 4)
- checksum += ((uint8_t *) & cfi->descTag)[i];
+ checksum += ((uint8_t *)&cfi->descTag)[i];
+ }
cfi->descTag.tagChecksum = checksum;
- if (adinicb || (sizeof(struct fileIdentDesc) <= -fibh->soffset))
- memcpy((uint8_t *) sfi, (uint8_t *) cfi,
- sizeof(struct fileIdentDesc));
- else {
- memcpy((uint8_t *) sfi, (uint8_t *) cfi, -fibh->soffset);
- memcpy(fibh->ebh->b_data, (uint8_t *) cfi - fibh->soffset,
+ if (adinicb || (sizeof(struct fileIdentDesc) <= -fibh->soffset)) {
+ memcpy((uint8_t *)sfi, (uint8_t *)cfi, sizeof(struct fileIdentDesc));
+ } else {
+ memcpy((uint8_t *)sfi, (uint8_t *)cfi, -fibh->soffset);
+ memcpy(fibh->ebh->b_data, (uint8_t *)cfi - fibh->soffset,
sizeof(struct fileIdentDesc) + fibh->soffset);
}
- if (adinicb)
+ if (adinicb) {
mark_inode_dirty(inode);
- else {
+ } else {
if (fibh->sbh != fibh->ebh)
mark_buffer_dirty_inode(fibh->ebh, inode);
mark_buffer_dirty_inode(fibh->sbh, inode);
@@ -163,26 +154,25 @@ static struct fileIdentDesc *udf_find_entry(struct inode *dir,
kernel_lb_addr eloc;
uint32_t elen;
sector_t offset;
- struct extent_position epos = { NULL, 0, {0, 0} };
+ struct extent_position epos = {};
size = (udf_ext0_offset(dir) + dir->i_size) >> 2;
f_pos = (udf_ext0_offset(dir) >> 2);
- fibh->soffset = fibh->eoffset =
- (f_pos & ((dir->i_sb->s_blocksize - 1) >> 2)) << 2;
- if (UDF_I_ALLOCTYPE(dir) == ICBTAG_FLAG_AD_IN_ICB)
+ fibh->soffset = fibh->eoffset = (f_pos & ((dir->i_sb->s_blocksize - 1) >> 2)) << 2;
+ if (UDF_I_ALLOCTYPE(dir) == ICBTAG_FLAG_AD_IN_ICB) {
fibh->sbh = fibh->ebh = NULL;
- else if (inode_bmap(dir, f_pos >> (dir->i_sb->s_blocksize_bits - 2),
- &epos, &eloc, &elen,
- &offset) == (EXT_RECORDED_ALLOCATED >> 30)) {
+ } else if (inode_bmap(dir, f_pos >> (dir->i_sb->s_blocksize_bits - 2),
+ &epos, &eloc, &elen, &offset) == (EXT_RECORDED_ALLOCATED >> 30)) {
block = udf_get_lb_pblock(dir->i_sb, eloc, offset);
if ((++offset << dir->i_sb->s_blocksize_bits) < elen) {
if (UDF_I_ALLOCTYPE(dir) == ICBTAG_FLAG_AD_SHORT)
epos.offset -= sizeof(short_ad);
else if (UDF_I_ALLOCTYPE(dir) == ICBTAG_FLAG_AD_LONG)
epos.offset -= sizeof(long_ad);
- } else
+ } else {
offset = 0;
+ }
if (!(fibh->sbh = fibh->ebh = udf_tread(dir->i_sb, block))) {
brelse(epos.bh);
@@ -196,7 +186,6 @@ static struct fileIdentDesc *udf_find_entry(struct inode *dir,
while ((f_pos < size)) {
fi = udf_fileident_read(dir, &f_pos, fibh, cfi, &epos, &eloc,
&elen, &offset);
-
if (!fi) {
if (fibh->sbh != fibh->ebh)
brelse(fibh->ebh);
@@ -213,20 +202,14 @@ static struct fileIdentDesc *udf_find_entry(struct inode *dir,
} else {
int poffset; /* Unpaded ending offset */
- poffset =
- fibh->soffset + sizeof(struct fileIdentDesc) + liu +
- lfi;
+ poffset = fibh->soffset + sizeof(struct fileIdentDesc) + liu + lfi;
- if (poffset >= lfi)
- nameptr =
- (uint8_t *) (fibh->ebh->b_data + poffset -
- lfi);
- else {
+ if (poffset >= lfi) {
+ nameptr = (uint8_t *)(fibh->ebh->b_data + poffset - lfi);
+ } else {
nameptr = fname;
- memcpy(nameptr, fi->fileIdent + liu,
- lfi - poffset);
- memcpy(nameptr + lfi - poffset,
- fibh->ebh->b_data, poffset);
+ memcpy(nameptr, fi->fileIdent + liu, lfi - poffset);
+ memcpy(nameptr + lfi - poffset, fibh->ebh->b_data, poffset);
}
}
@@ -244,18 +227,18 @@ static struct fileIdentDesc *udf_find_entry(struct inode *dir,
continue;
if ((flen = udf_get_filename(dir->i_sb, nameptr, fname, lfi))) {
- if (udf_match
- (flen, fname, dentry->d_name.len,
- dentry->d_name.name)) {
+ if (udf_match(flen, fname, dentry->d_name.len, dentry->d_name.name)) {
brelse(epos.bh);
return fi;
}
}
}
+
if (fibh->sbh != fibh->ebh)
brelse(fibh->ebh);
brelse(fibh->sbh);
brelse(epos.bh);
+
return NULL;
}
@@ -306,15 +289,19 @@ static struct dentry *udf_lookup(struct inode *dir, struct dentry *dentry,
#ifdef UDF_RECOVERY
/* temporary shorthand for specifying files by inode number */
if (!strncmp(dentry->d_name.name, ".B=", 3)) {
- kernel_lb_addr lb =
- { 0, simple_strtoul(dentry->d_name.name + 3, NULL, 0) };
+ kernel_lb_addr lb = {
+ .logicalBlockNum = 0,
+ .partitionReferenceNum = simple_strtoul(dentry->d_name.name + 3,
+ NULL, 0),
+ };
inode = udf_iget(dir->i_sb, lb);
if (!inode) {
unlock_kernel();
return ERR_PTR(-EACCES);
}
- } else
-#endif /* UDF_RECOVERY */
+ }
+ else
+#endif /* UDF_RECOVERY */
if (udf_find_entry(dir, dentry, &fibh, &cfi)) {
if (fibh.sbh != fibh.ebh)
@@ -329,6 +316,7 @@ static struct dentry *udf_lookup(struct inode *dir, struct dentry *dentry,
}
unlock_kernel();
d_add(dentry, inode);
+
return NULL;
}
@@ -352,7 +340,7 @@ static struct fileIdentDesc *udf_add_entry(struct inode *dir,
kernel_lb_addr eloc;
uint32_t elen;
sector_t offset;
- struct extent_position epos = { NULL, 0, {0, 0} };
+ struct extent_position epos = {};
sb = dir->i_sb;
@@ -361,36 +349,33 @@ static struct fileIdentDesc *udf_add_entry(struct inode *dir,
*err = -EINVAL;
return NULL;
}
-
- if (!
- (namelen =
- udf_put_filename(sb, dentry->d_name.name, name,
- dentry->d_name.len))) {
+ if (!(namelen = udf_put_filename(sb, dentry->d_name.name, name,
+ dentry->d_name.len))) {
*err = -ENAMETOOLONG;
return NULL;
}
- } else
+ } else {
namelen = 0;
+ }
nfidlen = (sizeof(struct fileIdentDesc) + namelen + 3) & ~3;
f_pos = (udf_ext0_offset(dir) >> 2);
- fibh->soffset = fibh->eoffset =
- (f_pos & ((dir->i_sb->s_blocksize - 1) >> 2)) << 2;
- if (UDF_I_ALLOCTYPE(dir) == ICBTAG_FLAG_AD_IN_ICB)
+ fibh->soffset = fibh->eoffset = (f_pos & ((dir->i_sb->s_blocksize - 1) >> 2)) << 2;
+ if (UDF_I_ALLOCTYPE(dir) == ICBTAG_FLAG_AD_IN_ICB) {
fibh->sbh = fibh->ebh = NULL;
- else if (inode_bmap(dir, f_pos >> (dir->i_sb->s_blocksize_bits - 2),
- &epos, &eloc, &elen,
- &offset) == (EXT_RECORDED_ALLOCATED >> 30)) {
+ } else if (inode_bmap(dir, f_pos >> (dir->i_sb->s_blocksize_bits - 2),
+ &epos, &eloc, &elen, &offset) == (EXT_RECORDED_ALLOCATED >> 30)) {
block = udf_get_lb_pblock(dir->i_sb, eloc, offset);
if ((++offset << dir->i_sb->s_blocksize_bits) < elen) {
if (UDF_I_ALLOCTYPE(dir) == ICBTAG_FLAG_AD_SHORT)
epos.offset -= sizeof(short_ad);
else if (UDF_I_ALLOCTYPE(dir) == ICBTAG_FLAG_AD_LONG)
epos.offset -= sizeof(long_ad);
- } else
+ } else {
offset = 0;
+ }
if (!(fibh->sbh = fibh->ebh = udf_tread(dir->i_sb, block))) {
brelse(epos.bh);
@@ -423,40 +408,33 @@ static struct fileIdentDesc *udf_add_entry(struct inode *dir,
liu = le16_to_cpu(cfi->lengthOfImpUse);
lfi = cfi->lengthFileIdent;
- if (fibh->sbh == fibh->ebh)
+ if (fibh->sbh == fibh->ebh) {
nameptr = fi->fileIdent + liu;
- else {
+ } else {
int poffset; /* Unpaded ending offset */
- poffset =
- fibh->soffset + sizeof(struct fileIdentDesc) + liu +
- lfi;
+ poffset = fibh->soffset + sizeof(struct fileIdentDesc) + liu + lfi;
- if (poffset >= lfi)
- nameptr =
- (char *)(fibh->ebh->b_data + poffset - lfi);
- else {
+ if (poffset >= lfi) {
+ nameptr = (char *)(fibh->ebh->b_data + poffset - lfi);
+ } else {
nameptr = fname;
- memcpy(nameptr, fi->fileIdent + liu,
- lfi - poffset);
- memcpy(nameptr + lfi - poffset,
- fibh->ebh->b_data, poffset);
+ memcpy(nameptr, fi->fileIdent + liu, lfi - poffset);
+ memcpy(nameptr + lfi - poffset, fibh->ebh->b_data, poffset);
}
}
if ((cfi->fileCharacteristics & FID_FILE_CHAR_DELETED) != 0) {
- if (((sizeof(struct fileIdentDesc) + liu + lfi +
- 3) & ~3) == nfidlen) {
+ if (((sizeof(struct fileIdentDesc) + liu + lfi + 3) & ~3) == nfidlen) {
brelse(epos.bh);
cfi->descTag.tagSerialNum = cpu_to_le16(1);
cfi->fileVersionNum = cpu_to_le16(1);
cfi->fileCharacteristics = 0;
cfi->lengthFileIdent = namelen;
cfi->lengthOfImpUse = cpu_to_le16(0);
- if (!udf_write_fi
- (dir, cfi, fi, fibh, NULL, name))
+ if (!udf_write_fi(dir, cfi, fi, fibh, NULL, name)) {
return fi;
- else {
+ } else {
*err = -EIO;
return NULL;
}
@@ -467,8 +445,7 @@ static struct fileIdentDesc *udf_add_entry(struct inode *dir,
continue;
if ((flen = udf_get_filename(dir->i_sb, nameptr, fname, lfi)) &&
- udf_match(flen, fname, dentry->d_name.len,
- dentry->d_name.name)) {
+ udf_match(flen, fname, dentry->d_name.len, dentry->d_name.name)) {
if (fibh->sbh != fibh->ebh)
brelse(fibh->ebh);
brelse(fibh->sbh);
@@ -478,7 +455,7 @@ static struct fileIdentDesc *udf_add_entry(struct inode *dir,
}
}
- add:
+add:
f_pos += nfidlen;
if (UDF_I_ALLOCTYPE(dir) == ICBTAG_FLAG_AD_IN_ICB &&
@@ -491,14 +468,11 @@ static struct fileIdentDesc *udf_add_entry(struct inode *dir,
if (fibh->sbh != fibh->ebh)
brelse(fibh->ebh);
brelse(fibh->sbh);
- if (!
- (fibh->sbh = fibh->ebh =
- udf_expand_dir_adinicb(dir, &block, err)))
+ if (!(fibh->sbh = fibh->ebh = udf_expand_dir_adinicb(dir, &block, err)))
return NULL;
epos.block = UDF_I_LOCATION(dir);
eloc.logicalBlockNum = block;
- eloc.partitionReferenceNum =
- UDF_I_LOCATION(dir).partitionReferenceNum;
+ eloc.partitionReferenceNum = UDF_I_LOCATION(dir).partitionReferenceNum;
elen = dir->i_sb->s_blocksize;
epos.offset = udf_file_entry_alloc_offset(dir);
if (UDF_I_ALLOCTYPE(dir) == ICBTAG_FLAG_AD_SHORT)
@@ -517,16 +491,13 @@ static struct fileIdentDesc *udf_add_entry(struct inode *dir,
if (UDF_I_ALLOCTYPE(dir) == ICBTAG_FLAG_AD_IN_ICB) {
block = UDF_I_LOCATION(dir).logicalBlockNum;
- fi = (struct fileIdentDesc *)(UDF_I_DATA(dir) +
- fibh->soffset -
+ fi = (struct fileIdentDesc *)(UDF_I_DATA(dir) + fibh->soffset -
udf_ext0_offset(dir) +
UDF_I_LENEATTR(dir));
} else {
block = eloc.logicalBlockNum + ((elen - 1) >>
- dir->i_sb->
- s_blocksize_bits);
- fi = (struct fileIdentDesc *)(fibh->sbh->b_data +
- fibh->soffset);
+ dir->i_sb->s_blocksize_bits);
+ fi = (struct fileIdentDesc *)(fibh->sbh->b_data + fibh->soffset);
}
} else {
fibh->soffset = fibh->eoffset - sb->s_blocksize;
@@ -538,42 +509,36 @@ static struct fileIdentDesc *udf_add_entry(struct inode *dir,
block = eloc.logicalBlockNum + ((elen - 1) >>
dir->i_sb->s_blocksize_bits);
-
- if (!
- (fibh->ebh =
- udf_bread(dir, f_pos >> (dir->i_sb->s_blocksize_bits - 2),
- 1, err))) {
+ fibh->ebh = udf_bread(dir, f_pos >> (dir->i_sb->s_blocksize_bits - 2), 1, err);
+ if (!fibh->ebh) {
brelse(epos.bh);
brelse(fibh->sbh);
return NULL;
}
- if (!(fibh->soffset)) {
+ if (!fibh->soffset) {
if (udf_next_aext(dir, &epos, &eloc, &elen, 1) ==
(EXT_RECORDED_ALLOCATED >> 30)) {
block = eloc.logicalBlockNum + ((elen - 1) >>
- dir->i_sb->
- s_blocksize_bits);
- } else
+ dir->i_sb->s_blocksize_bits);
+ } else {
block++;
+ }
brelse(fibh->sbh);
fibh->sbh = fibh->ebh;
fi = (struct fileIdentDesc *)(fibh->sbh->b_data);
} else {
fi = (struct fileIdentDesc *)
- (fibh->sbh->b_data + sb->s_blocksize +
- fibh->soffset);
+ (fibh->sbh->b_data + sb->s_blocksize + fibh->soffset);
}
}
memset(cfi, 0, sizeof(struct fileIdentDesc));
if (UDF_SB_UDFREV(sb) >= 0x0200)
- udf_new_tag((char *)cfi, TAG_IDENT_FID, 3, 1, block,
- sizeof(tag));
+ udf_new_tag((char *)cfi, TAG_IDENT_FID, 3, 1, block, sizeof(tag));
else
- udf_new_tag((char *)cfi, TAG_IDENT_FID, 2, 1, block,
- sizeof(tag));
+ udf_new_tag((char *)cfi, TAG_IDENT_FID, 2, 1, block, sizeof(tag));
cfi->fileVersionNum = cpu_to_le16(1);
cfi->lengthFileIdent = namelen;
cfi->lengthOfImpUse = cpu_to_le16(0);
@@ -599,8 +564,10 @@ static int udf_delete_entry(struct inode *inode, struct fileIdentDesc *fi,
struct fileIdentDesc *cfi)
{
cfi->fileCharacteristics |= FID_FILE_CHAR_DELETED;
+
if (UDF_QUERY_FLAG(inode->i_sb, UDF_FLAG_STRICT))
memset(&(cfi->icb), 0x00, sizeof(long_ad));
+
return udf_write_fi(inode, cfi, fi, fibh, NULL, NULL);
}
@@ -637,8 +604,8 @@ static int udf_create(struct inode *dir, struct dentry *dentry, int mode,
}
cfi.icb.extLength = cpu_to_le32(inode->i_sb->s_blocksize);
cfi.icb.extLocation = cpu_to_lelb(UDF_I_LOCATION(inode));
- *(__le32 *) ((struct allocDescImpUse *)cfi.icb.impUse)->impUse =
- cpu_to_le32(UDF_I_UNIQUE(inode) & 0x00000000FFFFFFFFUL);
+ *(__le32 *)((struct allocDescImpUse *)cfi.icb.impUse)->impUse =
+ cpu_to_le32(UDF_I_UNIQUE(inode) & 0x00000000FFFFFFFFUL);
udf_write_fi(dir, &cfi, fi, &fibh, NULL, NULL);
if (UDF_I_ALLOCTYPE(dir) == ICBTAG_FLAG_AD_IN_ICB) {
mark_inode_dirty(dir);
@@ -648,6 +615,7 @@ static int udf_create(struct inode *dir, struct dentry *dentry, int mode,
brelse(fibh.sbh);
unlock_kernel();
d_instantiate(dentry, inode);
+
return 0;
}
@@ -679,8 +647,8 @@ static int udf_mknod(struct inode *dir, struct dentry *dentry, int mode,
}
cfi.icb.extLength = cpu_to_le32(inode->i_sb->s_blocksize);
cfi.icb.extLocation = cpu_to_lelb(UDF_I_LOCATION(inode));
- *(__le32 *) ((struct allocDescImpUse *)cfi.icb.impUse)->impUse =
- cpu_to_le32(UDF_I_UNIQUE(inode) & 0x00000000FFFFFFFFUL);
+ *(__le32 *)((struct allocDescImpUse *)cfi.icb.impUse)->impUse =
+ cpu_to_le32(UDF_I_UNIQUE(inode) & 0x00000000FFFFFFFFUL);
udf_write_fi(dir, &cfi, fi, &fibh, NULL, NULL);
if (UDF_I_ALLOCTYPE(dir) == ICBTAG_FLAG_AD_IN_ICB) {
mark_inode_dirty(dir);
@@ -692,7 +660,8 @@ static int udf_mknod(struct inode *dir, struct dentry *dentry, int mode,
brelse(fibh.sbh);
d_instantiate(dentry, inode);
err = 0;
- out:
+
+out:
unlock_kernel();
return err;
}
@@ -725,10 +694,9 @@ static int udf_mkdir(struct inode *dir, struct dentry *dentry, int mode)
inode->i_nlink = 2;
cfi.icb.extLength = cpu_to_le32(inode->i_sb->s_blocksize);
cfi.icb.extLocation = cpu_to_lelb(UDF_I_LOCATION(dir));
- *(__le32 *) ((struct allocDescImpUse *)cfi.icb.impUse)->impUse =
- cpu_to_le32(UDF_I_UNIQUE(dir) & 0x00000000FFFFFFFFUL);
- cfi.fileCharacteristics =
- FID_FILE_CHAR_DIRECTORY | FID_FILE_CHAR_PARENT;
+ *(__le32 *)((struct allocDescImpUse *)cfi.icb.impUse)->impUse =
+ cpu_to_le32(UDF_I_UNIQUE(dir) & 0x00000000FFFFFFFFUL);
+ cfi.fileCharacteristics = FID_FILE_CHAR_DIRECTORY | FID_FILE_CHAR_PARENT;
udf_write_fi(inode, &cfi, fi, &fibh, NULL, NULL);
brelse(fibh.sbh);
inode->i_mode = S_IFDIR | mode;
@@ -744,8 +712,8 @@ static int udf_mkdir(struct inode *dir, struct dentry *dentry, int mode)
}
cfi.icb.extLength = cpu_to_le32(inode->i_sb->s_blocksize);
cfi.icb.extLocation = cpu_to_lelb(UDF_I_LOCATION(inode));
- *(__le32 *) ((struct allocDescImpUse *)cfi.icb.impUse)->impUse =
- cpu_to_le32(UDF_I_UNIQUE(inode) & 0x00000000FFFFFFFFUL);
+ *(__le32 *)((struct allocDescImpUse *)cfi.icb.impUse)->impUse =
+ cpu_to_le32(UDF_I_UNIQUE(inode) & 0x00000000FFFFFFFFUL);
cfi.fileCharacteristics |= FID_FILE_CHAR_DIRECTORY;
udf_write_fi(dir, &cfi, fi, &fibh, NULL, NULL);
inc_nlink(dir);
@@ -755,7 +723,8 @@ static int udf_mkdir(struct inode *dir, struct dentry *dentry, int mode)
brelse(fibh.ebh);
brelse(fibh.sbh);
err = 0;
- out:
+
+out:
unlock_kernel();
return err;
}
@@ -770,26 +739,25 @@ static int empty_dir(struct inode *dir)
kernel_lb_addr eloc;
uint32_t elen;
sector_t offset;
- struct extent_position epos = { NULL, 0, {0, 0} };
+ struct extent_position epos = {};
f_pos = (udf_ext0_offset(dir) >> 2);
- fibh.soffset = fibh.eoffset =
- (f_pos & ((dir->i_sb->s_blocksize - 1) >> 2)) << 2;
+ fibh.soffset = fibh.eoffset = (f_pos & ((dir->i_sb->s_blocksize - 1) >> 2)) << 2;
- if (UDF_I_ALLOCTYPE(dir) == ICBTAG_FLAG_AD_IN_ICB)
+ if (UDF_I_ALLOCTYPE(dir) == ICBTAG_FLAG_AD_IN_ICB) {
fibh.sbh = fibh.ebh = NULL;
- else if (inode_bmap(dir, f_pos >> (dir->i_sb->s_blocksize_bits - 2),
- &epos, &eloc, &elen,
- &offset) == (EXT_RECORDED_ALLOCATED >> 30)) {
+ } else if (inode_bmap(dir, f_pos >> (dir->i_sb->s_blocksize_bits - 2),
+ &epos, &eloc, &elen, &offset) == (EXT_RECORDED_ALLOCATED >> 30)) {
block = udf_get_lb_pblock(dir->i_sb, eloc, offset);
if ((++offset << dir->i_sb->s_blocksize_bits) < elen) {
if (UDF_I_ALLOCTYPE(dir) == ICBTAG_FLAG_AD_SHORT)
epos.offset -= sizeof(short_ad);
else if (UDF_I_ALLOCTYPE(dir) == ICBTAG_FLAG_AD_LONG)
epos.offset -= sizeof(long_ad);
- } else
+ } else {
offset = 0;
+ }
if (!(fibh.sbh = fibh.ebh = udf_tread(dir->i_sb, block))) {
brelse(epos.bh);
@@ -803,7 +771,6 @@ static int empty_dir(struct inode *dir)
while ((f_pos < size)) {
fi = udf_fileident_read(dir, &f_pos, &fibh, &cfi, &epos, &eloc,
&elen, &offset);
-
if (!fi) {
if (fibh.sbh != fibh.ebh)
brelse(fibh.ebh);
@@ -812,8 +779,8 @@ static int empty_dir(struct inode *dir)
return 0;
}
- if (cfi.lengthFileIdent
- && (cfi.fileCharacteristics & FID_FILE_CHAR_DELETED) == 0) {
+ if (cfi.lengthFileIdent &&
+ (cfi.fileCharacteristics & FID_FILE_CHAR_DELETED) == 0) {
if (fibh.sbh != fibh.ebh)
brelse(fibh.ebh);
brelse(fibh.sbh);
@@ -821,10 +788,12 @@ static int empty_dir(struct inode *dir)
return 0;
}
}
+
if (fibh.sbh != fibh.ebh)
brelse(fibh.ebh);
brelse(fibh.sbh);
brelse(epos.bh);
+
return 1;
}
@@ -859,15 +828,15 @@ static int udf_rmdir(struct inode *dir, struct dentry *dentry)
clear_nlink(inode);
inode->i_size = 0;
inode_dec_link_count(dir);
- inode->i_ctime = dir->i_ctime = dir->i_mtime =
- current_fs_time(dir->i_sb);
+ inode->i_ctime = dir->i_ctime = dir->i_mtime = current_fs_time(dir->i_sb);
mark_inode_dirty(dir);
- end_rmdir:
+end_rmdir:
if (fibh.sbh != fibh.ebh)
brelse(fibh.ebh);
brelse(fibh.sbh);
- out:
+
+out:
unlock_kernel();
return retval;
}
@@ -906,11 +875,12 @@ static int udf_unlink(struct inode *dir, struct dentry *dentry)
inode->i_ctime = dir->i_ctime;
retval = 0;
- end_unlink:
+end_unlink:
if (fibh.sbh != fibh.ebh)
brelse(fibh.ebh);
brelse(fibh.sbh);
- out:
+
+out:
unlock_kernel();
return retval;
}
@@ -922,7 +892,7 @@ static int udf_symlink(struct inode *dir, struct dentry *dentry,
struct pathComponent *pc;
char *compstart;
struct udf_fileident_bh fibh;
- struct extent_position epos = { NULL, 0, {0, 0} };
+ struct extent_position epos = {};
int eoffset, elen = 0;
struct fileIdentDesc *fi;
struct fileIdentDesc cfi;
@@ -945,26 +915,22 @@ static int udf_symlink(struct inode *dir, struct dentry *dentry,
uint32_t elen;
block = udf_new_block(inode->i_sb, inode,
- UDF_I_LOCATION(inode).
- partitionReferenceNum,
- UDF_I_LOCATION(inode).logicalBlockNum,
- &err);
+ UDF_I_LOCATION(inode).partitionReferenceNum,
+ UDF_I_LOCATION(inode).logicalBlockNum, &err);
if (!block)
goto out_no_entry;
epos.block = UDF_I_LOCATION(inode);
epos.offset = udf_file_entry_alloc_offset(inode);
epos.bh = NULL;
eloc.logicalBlockNum = block;
- eloc.partitionReferenceNum =
- UDF_I_LOCATION(inode).partitionReferenceNum;
+ eloc.partitionReferenceNum = UDF_I_LOCATION(inode).partitionReferenceNum;
elen = inode->i_sb->s_blocksize;
UDF_I_LENEXTENTS(inode) = elen;
udf_add_aext(inode, &epos, eloc, elen, 0);
brelse(epos.bh);
block = udf_get_pblock(inode->i_sb, block,
- UDF_I_LOCATION(inode).
- partitionReferenceNum, 0);
+ UDF_I_LOCATION(inode).partitionReferenceNum, 0);
epos.bh = udf_tread(inode->i_sb, block);
lock_buffer(epos.bh);
memset(epos.bh->b_data, 0x00, inode->i_sb->s_blocksize);
@@ -972,8 +938,9 @@ static int udf_symlink(struct inode *dir, struct dentry *dentry,
unlock_buffer(epos.bh);
mark_buffer_dirty_inode(epos.bh, inode);
ea = epos.bh->b_data + udf_ext0_offset(inode);
- } else
+ } else {
ea = UDF_I_DATA(inode) + UDF_I_LENEATTR(inode);
+ }
eoffset = inode->i_sb->s_blocksize - udf_ext0_offset(inode);
pc = (struct pathComponent *)ea;
@@ -1010,20 +977,17 @@ static int udf_symlink(struct inode *dir, struct dentry *dentry,
if (compstart[0] == '.') {
if ((symname - compstart) == 1)
pc->componentType = 4;
- else if ((symname - compstart) == 2
- && compstart[1] == '.')
+ else if ((symname - compstart) == 2 && compstart[1] == '.')
pc->componentType = 3;
}
if (pc->componentType == 5) {
- if (!
- (namelen =
- udf_put_filename(inode->i_sb, compstart, name,
- symname - compstart)))
+ namelen = udf_put_filename(inode->i_sb, compstart, name,
+ symname - compstart);
+ if (!namelen)
goto out_no_entry;
- if (elen + sizeof(struct pathComponent) + namelen >
- eoffset)
+ if (elen + sizeof(struct pathComponent) + namelen > eoffset)
goto out_no_entry;
else
pc->lengthComponentIdent = namelen;
@@ -1053,12 +1017,10 @@ static int udf_symlink(struct inode *dir, struct dentry *dentry,
if (UDF_SB_LVIDBH(inode->i_sb)) {
struct logicalVolHeaderDesc *lvhd;
uint64_t uniqueID;
- lvhd =
- (struct logicalVolHeaderDesc *)(UDF_SB_LVID(inode->i_sb)->
- logicalVolContentsUse);
+ lvhd = (struct logicalVolHeaderDesc *)(UDF_SB_LVID(inode->i_sb)->logicalVolContentsUse);
uniqueID = le64_to_cpu(lvhd->uniqueID);
- *(__le32 *) ((struct allocDescImpUse *)cfi.icb.impUse)->impUse =
- cpu_to_le32(uniqueID & 0x00000000FFFFFFFFUL);
+ *(__le32 *)((struct allocDescImpUse *)cfi.icb.impUse)->impUse =
+ cpu_to_le32(uniqueID & 0x00000000FFFFFFFFUL);
if (!(++uniqueID & 0x00000000FFFFFFFFUL))
uniqueID += 16;
lvhd->uniqueID = cpu_to_le64(uniqueID);
@@ -1074,11 +1036,11 @@ static int udf_symlink(struct inode *dir, struct dentry *dentry,
d_instantiate(dentry, inode);
err = 0;
- out:
+out:
unlock_kernel();
return err;
- out_no_entry:
+out_no_entry:
inode_dec_link_count(inode);
iput(inode);
goto out;
@@ -1107,12 +1069,10 @@ static int udf_link(struct dentry *old_dentry, struct inode *dir,
if (UDF_SB_LVIDBH(inode->i_sb)) {
struct logicalVolHeaderDesc *lvhd;
uint64_t uniqueID;
- lvhd =
- (struct logicalVolHeaderDesc *)(UDF_SB_LVID(inode->i_sb)->
- logicalVolContentsUse);
+ lvhd = (struct logicalVolHeaderDesc *)(UDF_SB_LVID(inode->i_sb)->logicalVolContentsUse);
uniqueID = le64_to_cpu(lvhd->uniqueID);
- *(__le32 *) ((struct allocDescImpUse *)cfi.icb.impUse)->impUse =
- cpu_to_le32(uniqueID & 0x00000000FFFFFFFFUL);
+ *(__le32 *)((struct allocDescImpUse *)cfi.icb.impUse)->impUse =
+ cpu_to_le32(uniqueID & 0x00000000FFFFFFFFUL);
if (!(++uniqueID & 0x00000000FFFFFFFFUL))
uniqueID += 16;
lvhd->uniqueID = cpu_to_le64(uniqueID);
@@ -1122,6 +1082,7 @@ static int udf_link(struct dentry *old_dentry, struct inode *dir,
if (UDF_I_ALLOCTYPE(dir) == ICBTAG_FLAG_AD_IN_ICB) {
mark_inode_dirty(dir);
}
+
if (fibh.sbh != fibh.ebh)
brelse(fibh.ebh);
brelse(fibh.sbh);
@@ -1131,6 +1092,7 @@ static int udf_link(struct dentry *old_dentry, struct inode *dir,
atomic_inc(&inode->i_count);
d_instantiate(dentry, inode);
unlock_kernel();
+
return 0;
}
@@ -1143,8 +1105,7 @@ static int udf_rename(struct inode *old_dir, struct dentry *old_dentry,
struct inode *old_inode = old_dentry->d_inode;
struct inode *new_inode = new_dentry->d_inode;
struct udf_fileident_bh ofibh, nfibh;
- struct fileIdentDesc *ofi = NULL, *nfi = NULL, *dir_fi =
- NULL, ocfi, ncfi;
+ struct fileIdentDesc *ofi = NULL, *nfi = NULL, *dir_fi = NULL, ocfi, ncfi;
struct buffer_head *dir_bh = NULL;
int retval = -ENOENT;
kernel_lb_addr tloc;
@@ -1181,36 +1142,27 @@ static int udf_rename(struct inode *old_dir, struct dentry *old_dentry,
if (UDF_I_ALLOCTYPE(old_inode) == ICBTAG_FLAG_AD_IN_ICB) {
dir_fi = udf_get_fileident(UDF_I_DATA(old_inode) -
(UDF_I_EFE(old_inode) ?
- sizeof(struct
- extendedFileEntry) :
+ sizeof(struct extendedFileEntry) :
sizeof(struct fileEntry)),
- old_inode->i_sb->s_blocksize,
- &offset);
+ old_inode->i_sb->s_blocksize, &offset);
} else {
dir_bh = udf_bread(old_inode, 0, 0, &retval);
if (!dir_bh)
goto end_rename;
- dir_fi =
- udf_get_fileident(dir_bh->b_data,
- old_inode->i_sb->s_blocksize,
- &offset);
+ dir_fi = udf_get_fileident(dir_bh->b_data, old_inode->i_sb->s_blocksize, &offset);
}
if (!dir_fi)
goto end_rename;
tloc = lelb_to_cpu(dir_fi->icb.extLocation);
- if (udf_get_lb_pblock(old_inode->i_sb, tloc, 0)
- != old_dir->i_ino)
+ if (udf_get_lb_pblock(old_inode->i_sb, tloc, 0) != old_dir->i_ino)
goto end_rename;
retval = -EMLINK;
- if (!new_inode
- && new_dir->i_nlink >=
- (256 << sizeof(new_dir->i_nlink)) - 1)
+ if (!new_inode && new_dir->i_nlink >= (256 << sizeof(new_dir->i_nlink)) - 1)
goto end_rename;
}
if (!nfi) {
- nfi =
- udf_add_entry(new_dir, new_dentry, &nfibh, &ncfi, &retval);
+ nfi = udf_add_entry(new_dir, new_dentry, &nfibh, &ncfi, &retval);
if (!nfi)
goto end_rename;
}
@@ -1244,13 +1196,12 @@ static int udf_rename(struct inode *old_dir, struct dentry *old_dentry,
if (dir_fi) {
dir_fi->icb.extLocation = cpu_to_lelb(UDF_I_LOCATION(new_dir));
udf_update_tag((char *)dir_fi, (sizeof(struct fileIdentDesc) +
- le16_to_cpu(dir_fi->
- lengthOfImpUse) +
- 3) & ~3);
+ le16_to_cpu(dir_fi->lengthOfImpUse) + 3) & ~3);
if (UDF_I_ALLOCTYPE(old_inode) == ICBTAG_FLAG_AD_IN_ICB) {
mark_inode_dirty(old_inode);
- } else
+ } else {
mark_buffer_dirty_inode(dir_bh, old_inode);
+ }
inode_dec_link_count(old_dir);
if (new_inode) {
inode_dec_link_count(new_inode);
@@ -1268,7 +1219,7 @@ static int udf_rename(struct inode *old_dir, struct dentry *old_dentry,
retval = 0;
- end_rename:
+end_rename:
brelse(dir_bh);
if (nfi) {
if (nfibh.sbh != nfibh.ebh)
@@ -1276,17 +1227,18 @@ static int udf_rename(struct inode *old_dir, struct dentry *old_dentry,
brelse(nfibh.sbh);
}
unlock_kernel();
+
return retval;
}
const struct inode_operations udf_dir_inode_operations = {
- .lookup = udf_lookup,
- .create = udf_create,
- .link = udf_link,
- .unlink = udf_unlink,
- .symlink = udf_symlink,
- .mkdir = udf_mkdir,
- .rmdir = udf_rmdir,
- .mknod = udf_mknod,
- .rename = udf_rename,
+ .lookup = udf_lookup,
+ .create = udf_create,
+ .link = udf_link,
+ .unlink = udf_unlink,
+ .symlink = udf_symlink,
+ .mkdir = udf_mkdir,
+ .rmdir = udf_rmdir,
+ .mknod = udf_mknod,
+ .rename = udf_rename,
};
generated by cgit v1.2.3-70-g09d2 (git 2.46.0) at 2024-11-22 11:34:17 +0000