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Diffstat (limited to 'fs/udf/namei.c')
-rw-r--r--fs/udf/namei.c443
1 files changed, 255 insertions, 188 deletions
diff --git a/fs/udf/namei.c b/fs/udf/namei.c
index bec96a6b334..112a5fb0b27 100644
--- a/fs/udf/namei.c
+++ b/fs/udf/namei.c
@@ -43,12 +43,10 @@ static inline int udf_match(int len1, const char *name1, int len2,
int udf_write_fi(struct inode *inode, struct fileIdentDesc *cfi,
struct fileIdentDesc *sfi, struct udf_fileident_bh *fibh,
- uint8_t * impuse, uint8_t * fileident)
+ uint8_t *impuse, uint8_t *fileident)
{
uint16_t crclen = fibh->eoffset - fibh->soffset - sizeof(tag);
uint16_t crc;
- uint8_t checksum = 0;
- int i;
int offset;
uint16_t liu = le16_to_cpu(cfi->lengthOfImpUse);
uint8_t lfi = cfi->lengthFileIdent;
@@ -56,7 +54,7 @@ int udf_write_fi(struct inode *inode, struct fileIdentDesc *cfi,
sizeof(struct fileIdentDesc);
int adinicb = 0;
- if (UDF_I_ALLOCTYPE(inode) == ICBTAG_FLAG_AD_IN_ICB)
+ if (UDF_I(inode)->i_alloc_type == ICBTAG_FLAG_AD_IN_ICB)
adinicb = 1;
offset = fibh->soffset + sizeof(struct fileIdentDesc);
@@ -68,7 +66,8 @@ int udf_write_fi(struct inode *inode, struct fileIdentDesc *cfi,
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);
+ memcpy(fibh->ebh->b_data, impuse - offset,
+ liu + offset);
}
}
@@ -80,8 +79,10 @@ int udf_write_fi(struct inode *inode, struct fileIdentDesc *cfi,
} 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);
+ memcpy((uint8_t *)sfi->fileIdent + liu, fileident,
+ -offset);
+ memcpy(fibh->ebh->b_data, fileident - offset,
+ lfi + offset);
}
}
@@ -101,27 +102,29 @@ int udf_write_fi(struct inode *inode, struct fileIdentDesc *cfi,
if (fibh->sbh == fibh->ebh) {
crc = udf_crc((uint8_t *)sfi->impUse,
- crclen + sizeof(tag) - sizeof(struct fileIdentDesc), crc);
+ 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);
+ 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);
+ -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);
+ cfi->descTag.tagChecksum = udf_tag_checksum(&cfi->descTag);
- for (i = 0; i < 16; i++) {
- if (i != 4)
- 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));
+ 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,
@@ -155,26 +158,28 @@ static struct fileIdentDesc *udf_find_entry(struct inode *dir,
uint32_t elen;
sector_t offset;
struct extent_position epos = {};
+ struct udf_inode_info *dinfo = UDF_I(dir);
- size = (udf_ext0_offset(dir) + dir->i_size) >> 2;
- f_pos = (udf_ext0_offset(dir) >> 2);
+ size = udf_ext0_offset(dir) + dir->i_size;
+ f_pos = udf_ext0_offset(dir);
- 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);
+ if (dinfo->i_alloc_type == 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,
+ &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)
+ if (dinfo->i_alloc_type == ICBTAG_FLAG_AD_SHORT)
epos.offset -= sizeof(short_ad);
- else if (UDF_I_ALLOCTYPE(dir) == ICBTAG_FLAG_AD_LONG)
+ else if (dinfo->i_alloc_type == ICBTAG_FLAG_AD_LONG)
epos.offset -= sizeof(long_ad);
- } else {
+ } else
offset = 0;
- }
- if (!(fibh->sbh = fibh->ebh = udf_tread(dir->i_sb, block))) {
+ fibh->sbh = fibh->ebh = udf_tread(dir->i_sb, block);
+ if (!fibh->sbh) {
brelse(epos.bh);
return NULL;
}
@@ -183,7 +188,7 @@ static struct fileIdentDesc *udf_find_entry(struct inode *dir,
return NULL;
}
- while ((f_pos < size)) {
+ while (f_pos < size) {
fi = udf_fileident_read(dir, &f_pos, fibh, cfi, &epos, &eloc,
&elen, &offset);
if (!fi) {
@@ -202,14 +207,18 @@ 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);
}
}
@@ -226,11 +235,11 @@ static struct fileIdentDesc *udf_find_entry(struct inode *dir,
if (!lfi)
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)) {
- brelse(epos.bh);
- return fi;
- }
+ flen = udf_get_filename(dir->i_sb, nameptr, fname, lfi);
+ if (flen && udf_match(flen, fname, dentry->d_name.len,
+ dentry->d_name.name)) {
+ brelse(epos.bh);
+ return fi;
}
}
@@ -291,16 +300,16 @@ static struct dentry *udf_lookup(struct inode *dir, struct dentry *dentry,
if (!strncmp(dentry->d_name.name, ".B=", 3)) {
kernel_lb_addr lb = {
.logicalBlockNum = 0,
- .partitionReferenceNum = simple_strtoul(dentry->d_name.name + 3,
- NULL, 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
+ } else
#endif /* UDF_RECOVERY */
if (udf_find_entry(dir, dentry, &fibh, &cfi)) {
@@ -325,14 +334,14 @@ static struct fileIdentDesc *udf_add_entry(struct inode *dir,
struct udf_fileident_bh *fibh,
struct fileIdentDesc *cfi, int *err)
{
- struct super_block *sb;
+ struct super_block *sb = dir->i_sb;
struct fileIdentDesc *fi = NULL;
char name[UDF_NAME_LEN], fname[UDF_NAME_LEN];
int namelen;
loff_t f_pos;
int flen;
char *nameptr;
- loff_t size = (udf_ext0_offset(dir) + dir->i_size) >> 2;
+ loff_t size = udf_ext0_offset(dir) + dir->i_size;
int nfidlen;
uint8_t lfi;
uint16_t liu;
@@ -341,16 +350,16 @@ static struct fileIdentDesc *udf_add_entry(struct inode *dir,
uint32_t elen;
sector_t offset;
struct extent_position epos = {};
-
- sb = dir->i_sb;
+ struct udf_inode_info *dinfo;
if (dentry) {
if (!dentry->d_name.len) {
*err = -EINVAL;
return NULL;
}
- if (!(namelen = udf_put_filename(sb, dentry->d_name.name, name,
- dentry->d_name.len))) {
+ namelen = udf_put_filename(sb, dentry->d_name.name, name,
+ dentry->d_name.len);
+ if (!namelen) {
*err = -ENAMETOOLONG;
return NULL;
}
@@ -360,39 +369,40 @@ static struct fileIdentDesc *udf_add_entry(struct inode *dir,
nfidlen = (sizeof(struct fileIdentDesc) + namelen + 3) & ~3;
- f_pos = (udf_ext0_offset(dir) >> 2);
+ f_pos = udf_ext0_offset(dir);
- 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);
+ dinfo = UDF_I(dir);
+ if (dinfo->i_alloc_type == 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,
+ &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)
+ if (dinfo->i_alloc_type == ICBTAG_FLAG_AD_SHORT)
epos.offset -= sizeof(short_ad);
- else if (UDF_I_ALLOCTYPE(dir) == ICBTAG_FLAG_AD_LONG)
+ else if (dinfo->i_alloc_type == ICBTAG_FLAG_AD_LONG)
epos.offset -= sizeof(long_ad);
- } else {
+ } else
offset = 0;
- }
- if (!(fibh->sbh = fibh->ebh = udf_tread(dir->i_sb, block))) {
+ fibh->sbh = fibh->ebh = udf_tread(dir->i_sb, block);
+ if (!fibh->sbh) {
brelse(epos.bh);
*err = -EIO;
return NULL;
}
- block = UDF_I_LOCATION(dir).logicalBlockNum;
-
+ block = dinfo->i_location.logicalBlockNum;
} else {
- block = udf_get_lb_pblock(dir->i_sb, UDF_I_LOCATION(dir), 0);
+ block = udf_get_lb_pblock(dir->i_sb, dinfo->i_location, 0);
fibh->sbh = fibh->ebh = NULL;
fibh->soffset = fibh->eoffset = sb->s_blocksize;
goto add;
}
- while ((f_pos < size)) {
+ while (f_pos < size) {
fi = udf_fileident_read(dir, &f_pos, fibh, cfi, &epos, &eloc,
&elen, &offset);
@@ -408,33 +418,39 @@ 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;
}
@@ -444,8 +460,9 @@ static struct fileIdentDesc *udf_add_entry(struct inode *dir,
if (!lfi || !dentry)
continue;
- if ((flen = udf_get_filename(dir->i_sb, nameptr, fname, lfi)) &&
- udf_match(flen, fname, dentry->d_name.len, dentry->d_name.name)) {
+ flen = udf_get_filename(dir->i_sb, nameptr, fname, lfi);
+ if (flen && udf_match(flen, fname, dentry->d_name.len,
+ dentry->d_name.name)) {
if (fibh->sbh != fibh->ebh)
brelse(fibh->ebh);
brelse(fibh->sbh);
@@ -456,29 +473,34 @@ static struct fileIdentDesc *udf_add_entry(struct inode *dir,
}
add:
+ if (dinfo->i_alloc_type != ICBTAG_FLAG_AD_IN_ICB) {
+ elen = (elen + sb->s_blocksize - 1) & ~(sb->s_blocksize - 1);
+ if (dinfo->i_alloc_type == ICBTAG_FLAG_AD_SHORT)
+ epos.offset -= sizeof(short_ad);
+ else if (dinfo->i_alloc_type == ICBTAG_FLAG_AD_LONG)
+ epos.offset -= sizeof(long_ad);
+ udf_write_aext(dir, &epos, eloc, elen, 1);
+ }
f_pos += nfidlen;
- if (UDF_I_ALLOCTYPE(dir) == ICBTAG_FLAG_AD_IN_ICB &&
+ if (dinfo->i_alloc_type == ICBTAG_FLAG_AD_IN_ICB &&
sb->s_blocksize - fibh->eoffset < nfidlen) {
brelse(epos.bh);
epos.bh = NULL;
fibh->soffset -= udf_ext0_offset(dir);
fibh->eoffset -= udf_ext0_offset(dir);
- f_pos -= (udf_ext0_offset(dir) >> 2);
+ f_pos -= udf_ext0_offset(dir);
if (fibh->sbh != fibh->ebh)
brelse(fibh->ebh);
brelse(fibh->sbh);
- if (!(fibh->sbh = fibh->ebh = udf_expand_dir_adinicb(dir, &block, err)))
+ fibh->sbh = fibh->ebh =
+ udf_expand_dir_adinicb(dir, &block, err);
+ if (!fibh->sbh)
return NULL;
- epos.block = UDF_I_LOCATION(dir);
- eloc.logicalBlockNum = block;
- eloc.partitionReferenceNum = UDF_I_LOCATION(dir).partitionReferenceNum;
- elen = dir->i_sb->s_blocksize;
+ epos.block = dinfo->i_location;
epos.offset = udf_file_entry_alloc_offset(dir);
- 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);
+ /* Load extent udf_expand_dir_adinicb() has created */
+ udf_current_aext(dir, &epos, &eloc, &elen, 1);
}
if (sb->s_blocksize - fibh->eoffset >= nfidlen) {
@@ -489,15 +511,19 @@ add:
fibh->sbh = fibh->ebh;
}
- 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 -
- udf_ext0_offset(dir) +
- UDF_I_LENEATTR(dir));
+ if (dinfo->i_alloc_type == ICBTAG_FLAG_AD_IN_ICB) {
+ block = dinfo->i_location.logicalBlockNum;
+ fi = (struct fileIdentDesc *)
+ (dinfo->i_ext.i_data +
+ fibh->soffset -
+ udf_ext0_offset(dir) +
+ dinfo->i_lenEAttr);
} else {
- block = eloc.logicalBlockNum + ((elen - 1) >>
- dir->i_sb->s_blocksize_bits);
- fi = (struct fileIdentDesc *)(fibh->sbh->b_data + fibh->soffset);
+ block = eloc.logicalBlockNum +
+ ((elen - 1) >>
+ dir->i_sb->s_blocksize_bits);
+ fi = (struct fileIdentDesc *)
+ (fibh->sbh->b_data + fibh->soffset);
}
} else {
fibh->soffset = fibh->eoffset - sb->s_blocksize;
@@ -509,7 +535,8 @@ add:
block = eloc.logicalBlockNum + ((elen - 1) >>
dir->i_sb->s_blocksize_bits);
- 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, 1, err);
if (!fibh->ebh) {
brelse(epos.bh);
brelse(fibh->sbh);
@@ -521,32 +548,34 @@ add:
(EXT_RECORDED_ALLOCATED >> 30)) {
block = eloc.logicalBlockNum + ((elen - 1) >>
dir->i_sb->s_blocksize_bits);
- } else {
+ } 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));
+ if (UDF_SB(sb)->s_udfrev >= 0x0200)
+ 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);
if (!udf_write_fi(dir, cfi, fi, fibh, NULL, name)) {
brelse(epos.bh);
dir->i_size += nfidlen;
- if (UDF_I_ALLOCTYPE(dir) == ICBTAG_FLAG_AD_IN_ICB)
- UDF_I_LENALLOC(dir) += nfidlen;
+ if (dinfo->i_alloc_type == ICBTAG_FLAG_AD_IN_ICB)
+ dinfo->i_lenAlloc += nfidlen;
mark_inode_dirty(dir);
return fi;
} else {
@@ -578,6 +607,7 @@ static int udf_create(struct inode *dir, struct dentry *dentry, int mode,
struct inode *inode;
struct fileIdentDesc cfi, *fi;
int err;
+ struct udf_inode_info *iinfo;
lock_kernel();
inode = udf_new_inode(dir, mode, &err);
@@ -586,7 +616,8 @@ static int udf_create(struct inode *dir, struct dentry *dentry, int mode,
return err;
}
- if (UDF_I_ALLOCTYPE(inode) == ICBTAG_FLAG_AD_IN_ICB)
+ iinfo = UDF_I(inode);
+ if (iinfo->i_alloc_type == ICBTAG_FLAG_AD_IN_ICB)
inode->i_data.a_ops = &udf_adinicb_aops;
else
inode->i_data.a_ops = &udf_aops;
@@ -595,7 +626,8 @@ static int udf_create(struct inode *dir, struct dentry *dentry, int mode,
inode->i_mode = mode;
mark_inode_dirty(inode);
- if (!(fi = udf_add_entry(dir, dentry, &fibh, &cfi, &err))) {
+ fi = udf_add_entry(dir, dentry, &fibh, &cfi, &err);
+ if (!fi) {
inode->i_nlink--;
mark_inode_dirty(inode);
iput(inode);
@@ -603,13 +635,12 @@ static int udf_create(struct inode *dir, struct dentry *dentry, int mode,
return err;
}
cfi.icb.extLength = cpu_to_le32(inode->i_sb->s_blocksize);
- cfi.icb.extLocation = cpu_to_lelb(UDF_I_LOCATION(inode));
+ cfi.icb.extLocation = cpu_to_lelb(iinfo->i_location);
*(__le32 *)((struct allocDescImpUse *)cfi.icb.impUse)->impUse =
- cpu_to_le32(UDF_I_UNIQUE(inode) & 0x00000000FFFFFFFFUL);
+ cpu_to_le32(iinfo->i_unique & 0x00000000FFFFFFFFUL);
udf_write_fi(dir, &cfi, fi, &fibh, NULL, NULL);
- if (UDF_I_ALLOCTYPE(dir) == ICBTAG_FLAG_AD_IN_ICB) {
+ if (UDF_I(dir)->i_alloc_type == ICBTAG_FLAG_AD_IN_ICB)
mark_inode_dirty(dir);
- }
if (fibh.sbh != fibh.ebh)
brelse(fibh.ebh);
brelse(fibh.sbh);
@@ -626,6 +657,7 @@ static int udf_mknod(struct inode *dir, struct dentry *dentry, int mode,
struct udf_fileident_bh fibh;
struct fileIdentDesc cfi, *fi;
int err;
+ struct udf_inode_info *iinfo;
if (!old_valid_dev(rdev))
return -EINVAL;
@@ -636,9 +668,11 @@ static int udf_mknod(struct inode *dir, struct dentry *dentry, int mode,
if (!inode)
goto out;
+ iinfo = UDF_I(inode);
inode->i_uid = current->fsuid;
init_special_inode(inode, mode, rdev);
- if (!(fi = udf_add_entry(dir, dentry, &fibh, &cfi, &err))) {
+ fi = udf_add_entry(dir, dentry, &fibh, &cfi, &err);
+ if (!fi) {
inode->i_nlink--;
mark_inode_dirty(inode);
iput(inode);
@@ -646,13 +680,12 @@ static int udf_mknod(struct inode *dir, struct dentry *dentry, int mode,
return err;
}
cfi.icb.extLength = cpu_to_le32(inode->i_sb->s_blocksize);
- cfi.icb.extLocation = cpu_to_lelb(UDF_I_LOCATION(inode));
+ cfi.icb.extLocation = cpu_to_lelb(iinfo->i_location);
*(__le32 *)((struct allocDescImpUse *)cfi.icb.impUse)->impUse =
- cpu_to_le32(UDF_I_UNIQUE(inode) & 0x00000000FFFFFFFFUL);
+ cpu_to_le32(iinfo->i_unique & 0x00000000FFFFFFFFUL);
udf_write_fi(dir, &cfi, fi, &fibh, NULL, NULL);
- if (UDF_I_ALLOCTYPE(dir) == ICBTAG_FLAG_AD_IN_ICB) {
+ if (UDF_I(dir)->i_alloc_type == ICBTAG_FLAG_AD_IN_ICB)
mark_inode_dirty(dir);
- }
mark_inode_dirty(inode);
if (fibh.sbh != fibh.ebh)
@@ -672,6 +705,8 @@ static int udf_mkdir(struct inode *dir, struct dentry *dentry, int mode)
struct udf_fileident_bh fibh;
struct fileIdentDesc cfi, *fi;
int err;
+ struct udf_inode_info *dinfo = UDF_I(dir);
+ struct udf_inode_info *iinfo;
lock_kernel();
err = -EMLINK;
@@ -683,9 +718,11 @@ static int udf_mkdir(struct inode *dir, struct dentry *dentry, int mode)
if (!inode)
goto out;
+ iinfo = UDF_I(inode);
inode->i_op = &udf_dir_inode_operations;
inode->i_fop = &udf_dir_operations;
- if (!(fi = udf_add_entry(inode, NULL, &fibh, &cfi, &err))) {
+ fi = udf_add_entry(inode, NULL, &fibh, &cfi, &err);
+ if (!fi) {
inode->i_nlink--;
mark_inode_dirty(inode);
iput(inode);
@@ -693,10 +730,11 @@ 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));
+ cfi.icb.extLocation = cpu_to_lelb(dinfo->i_location);
*(__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;
+ cpu_to_le32(dinfo->i_unique & 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;
@@ -704,16 +742,17 @@ static int udf_mkdir(struct inode *dir, struct dentry *dentry, int mode)
inode->i_mode |= S_ISGID;
mark_inode_dirty(inode);
- if (!(fi = udf_add_entry(dir, dentry, &fibh, &cfi, &err))) {
+ fi = udf_add_entry(dir, dentry, &fibh, &cfi, &err);
+ if (!fi) {
inode->i_nlink = 0;
mark_inode_dirty(inode);
iput(inode);
goto out;
}
cfi.icb.extLength = cpu_to_le32(inode->i_sb->s_blocksize);
- cfi.icb.extLocation = cpu_to_lelb(UDF_I_LOCATION(inode));
+ cfi.icb.extLocation = cpu_to_lelb(iinfo->i_location);
*(__le32 *)((struct allocDescImpUse *)cfi.icb.impUse)->impUse =
- cpu_to_le32(UDF_I_UNIQUE(inode) & 0x00000000FFFFFFFFUL);
+ cpu_to_le32(iinfo->i_unique & 0x00000000FFFFFFFFUL);
cfi.fileCharacteristics |= FID_FILE_CHAR_DIRECTORY;
udf_write_fi(dir, &cfi, fi, &fibh, NULL, NULL);
inc_nlink(dir);
@@ -734,32 +773,33 @@ static int empty_dir(struct inode *dir)
struct fileIdentDesc *fi, cfi;
struct udf_fileident_bh fibh;
loff_t f_pos;
- loff_t size = (udf_ext0_offset(dir) + dir->i_size) >> 2;
+ loff_t size = udf_ext0_offset(dir) + dir->i_size;
int block;
kernel_lb_addr eloc;
uint32_t elen;
sector_t offset;
struct extent_position epos = {};
+ struct udf_inode_info *dinfo = UDF_I(dir);
- f_pos = (udf_ext0_offset(dir) >> 2);
+ f_pos = udf_ext0_offset(dir);
+ fibh.soffset = fibh.eoffset = f_pos & (dir->i_sb->s_blocksize - 1);
- 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 (dinfo->i_alloc_type == 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,
+ &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)
+ if (dinfo->i_alloc_type == ICBTAG_FLAG_AD_SHORT)
epos.offset -= sizeof(short_ad);
- else if (UDF_I_ALLOCTYPE(dir) == ICBTAG_FLAG_AD_LONG)
+ else if (dinfo->i_alloc_type == ICBTAG_FLAG_AD_LONG)
epos.offset -= sizeof(long_ad);
- } else {
+ } else
offset = 0;
- }
- if (!(fibh.sbh = fibh.ebh = udf_tread(dir->i_sb, block))) {
+ fibh.sbh = fibh.ebh = udf_tread(dir->i_sb, block);
+ if (!fibh.sbh) {
brelse(epos.bh);
return 0;
}
@@ -768,7 +808,7 @@ static int empty_dir(struct inode *dir)
return 0;
}
- while ((f_pos < size)) {
+ while (f_pos < size) {
fi = udf_fileident_read(dir, &f_pos, &fibh, &cfi, &epos, &eloc,
&elen, &offset);
if (!fi) {
@@ -828,7 +868,8 @@ 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:
@@ -901,36 +942,42 @@ static int udf_symlink(struct inode *dir, struct dentry *dentry,
int block;
char name[UDF_NAME_LEN];
int namelen;
+ struct buffer_head *bh;
+ struct udf_inode_info *iinfo;
lock_kernel();
- if (!(inode = udf_new_inode(dir, S_IFLNK, &err)))
+ inode = udf_new_inode(dir, S_IFLNK, &err);
+ if (!inode)
goto out;
+ iinfo = UDF_I(inode);
inode->i_mode = S_IFLNK | S_IRWXUGO;
inode->i_data.a_ops = &udf_symlink_aops;
inode->i_op = &page_symlink_inode_operations;
- if (UDF_I_ALLOCTYPE(inode) != ICBTAG_FLAG_AD_IN_ICB) {
+ if (iinfo->i_alloc_type != ICBTAG_FLAG_AD_IN_ICB) {
kernel_lb_addr eloc;
uint32_t elen;
block = udf_new_block(inode->i_sb, inode,
- UDF_I_LOCATION(inode).partitionReferenceNum,
- UDF_I_LOCATION(inode).logicalBlockNum, &err);
+ iinfo->i_location.partitionReferenceNum,
+ iinfo->i_location.logicalBlockNum, &err);
if (!block)
goto out_no_entry;
- epos.block = UDF_I_LOCATION(inode);
+ epos.block = iinfo->i_location;
epos.offset = udf_file_entry_alloc_offset(inode);
epos.bh = NULL;
eloc.logicalBlockNum = block;
- eloc.partitionReferenceNum = UDF_I_LOCATION(inode).partitionReferenceNum;
+ eloc.partitionReferenceNum =
+ iinfo->i_location.partitionReferenceNum;
elen = inode->i_sb->s_blocksize;
- UDF_I_LENEXTENTS(inode) = elen;
+ iinfo->i_lenExtents = 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);
+ iinfo->i_location.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);
@@ -938,9 +985,8 @@ 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 {
- ea = UDF_I_DATA(inode) + UDF_I_LENEATTR(inode);
- }
+ } else
+ ea = iinfo->i_ext.i_data + iinfo->i_lenEAttr;
eoffset = inode->i_sb->s_blocksize - udf_ext0_offset(inode);
pc = (struct pathComponent *)ea;
@@ -977,7 +1023,8 @@ 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;
}
@@ -987,7 +1034,8 @@ static int udf_symlink(struct inode *dir, struct dentry *dentry,
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;
@@ -1006,30 +1054,34 @@ static int udf_symlink(struct inode *dir, struct dentry *dentry,
brelse(epos.bh);
inode->i_size = elen;
- if (UDF_I_ALLOCTYPE(inode) == ICBTAG_FLAG_AD_IN_ICB)
- UDF_I_LENALLOC(inode) = inode->i_size;
+ if (iinfo->i_alloc_type == ICBTAG_FLAG_AD_IN_ICB)
+ iinfo->i_lenAlloc = inode->i_size;
mark_inode_dirty(inode);
- if (!(fi = udf_add_entry(dir, dentry, &fibh, &cfi, &err)))
+ fi = udf_add_entry(dir, dentry, &fibh, &cfi, &err);
+ if (!fi)
goto out_no_entry;
cfi.icb.extLength = cpu_to_le32(inode->i_sb->s_blocksize);
- cfi.icb.extLocation = cpu_to_lelb(UDF_I_LOCATION(inode));
- if (UDF_SB_LVIDBH(inode->i_sb)) {
+ cfi.icb.extLocation = cpu_to_lelb(iinfo->i_location);
+ bh = UDF_SB(inode->i_sb)->s_lvid_bh;
+ if (bh) {
+ struct logicalVolIntegrityDesc *lvid =
+ (struct logicalVolIntegrityDesc *)bh->b_data;
struct logicalVolHeaderDesc *lvhd;
uint64_t uniqueID;
- lvhd = (struct logicalVolHeaderDesc *)(UDF_SB_LVID(inode->i_sb)->logicalVolContentsUse);
+ lvhd = (struct logicalVolHeaderDesc *)
+ lvid->logicalVolContentsUse;
uniqueID = le64_to_cpu(lvhd->uniqueID);
*(__le32 *)((struct allocDescImpUse *)cfi.icb.impUse)->impUse =
cpu_to_le32(uniqueID & 0x00000000FFFFFFFFUL);
if (!(++uniqueID & 0x00000000FFFFFFFFUL))
uniqueID += 16;
lvhd->uniqueID = cpu_to_le64(uniqueID);
- mark_buffer_dirty(UDF_SB_LVIDBH(inode->i_sb));
+ mark_buffer_dirty(bh);
}
udf_write_fi(dir, &cfi, fi, &fibh, NULL, NULL);
- if (UDF_I_ALLOCTYPE(dir) == ICBTAG_FLAG_AD_IN_ICB) {
+ if (UDF_I(dir)->i_alloc_type == ICBTAG_FLAG_AD_IN_ICB)
mark_inode_dirty(dir);
- }
if (fibh.sbh != fibh.ebh)
brelse(fibh.ebh);
brelse(fibh.sbh);
@@ -1053,6 +1105,7 @@ static int udf_link(struct dentry *old_dentry, struct inode *dir,
struct udf_fileident_bh fibh;
struct fileIdentDesc cfi, *fi;
int err;
+ struct buffer_head *bh;
lock_kernel();
if (inode->i_nlink >= (256 << sizeof(inode->i_nlink)) - 1) {
@@ -1060,28 +1113,32 @@ static int udf_link(struct dentry *old_dentry, struct inode *dir,
return -EMLINK;
}
- if (!(fi = udf_add_entry(dir, dentry, &fibh, &cfi, &err))) {
+ fi = udf_add_entry(dir, dentry, &fibh, &cfi, &err);
+ if (!fi) {
unlock_kernel();
return err;
}
cfi.icb.extLength = cpu_to_le32(inode->i_sb->s_blocksize);
- cfi.icb.extLocation = cpu_to_lelb(UDF_I_LOCATION(inode));
- if (UDF_SB_LVIDBH(inode->i_sb)) {
+ cfi.icb.extLocation = cpu_to_lelb(UDF_I(inode)->i_location);
+ bh = UDF_SB(inode->i_sb)->s_lvid_bh;
+ if (bh) {
+ struct logicalVolIntegrityDesc *lvid =
+ (struct logicalVolIntegrityDesc *)bh->b_data;
struct logicalVolHeaderDesc *lvhd;
uint64_t uniqueID;
- lvhd = (struct logicalVolHeaderDesc *)(UDF_SB_LVID(inode->i_sb)->logicalVolContentsUse);
+ lvhd = (struct logicalVolHeaderDesc *)
+ (lvid->logicalVolContentsUse);
uniqueID = le64_to_cpu(lvhd->uniqueID);
*(__le32 *)((struct allocDescImpUse *)cfi.icb.impUse)->impUse =
cpu_to_le32(uniqueID & 0x00000000FFFFFFFFUL);
if (!(++uniqueID & 0x00000000FFFFFFFFUL))
uniqueID += 16;
lvhd->uniqueID = cpu_to_le64(uniqueID);
- mark_buffer_dirty(UDF_SB_LVIDBH(inode->i_sb));
+ mark_buffer_dirty(bh);
}
udf_write_fi(dir, &cfi, fi, &fibh, NULL, NULL);
- if (UDF_I_ALLOCTYPE(dir) == ICBTAG_FLAG_AD_IN_ICB) {
+ if (UDF_I(dir)->i_alloc_type == ICBTAG_FLAG_AD_IN_ICB)
mark_inode_dirty(dir);
- }
if (fibh.sbh != fibh.ebh)
brelse(fibh.ebh);
@@ -1105,13 +1162,16 @@ 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;
+ struct fileIdentDesc ocfi, ncfi;
struct buffer_head *dir_bh = NULL;
int retval = -ENOENT;
kernel_lb_addr tloc;
+ struct udf_inode_info *old_iinfo = UDF_I(old_inode);
lock_kernel();
- if ((ofi = udf_find_entry(old_dir, old_dentry, &ofibh, &ocfi))) {
+ ofi = udf_find_entry(old_dir, old_dentry, &ofibh, &ocfi);
+ if (ofi) {
if (ofibh.sbh != ofibh.ebh)
brelse(ofibh.ebh);
brelse(ofibh.sbh);
@@ -1131,7 +1191,7 @@ static int udf_rename(struct inode *old_dir, struct dentry *old_dentry,
}
}
if (S_ISDIR(old_inode->i_mode)) {
- uint32_t offset = udf_ext0_offset(old_inode);
+ int offset = udf_ext0_offset(old_inode);
if (new_inode) {
retval = -ENOTEMPTY;
@@ -1139,30 +1199,36 @@ static int udf_rename(struct inode *old_dir, struct dentry *old_dentry,
goto end_rename;
}
retval = -EIO;
- 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 fileEntry)),
- old_inode->i_sb->s_blocksize, &offset);
+ if (old_iinfo->i_alloc_type == ICBTAG_FLAG_AD_IN_ICB) {
+ dir_fi = udf_get_fileident(
+ old_iinfo->i_ext.i_data -
+ (old_iinfo->i_efe ?
+ sizeof(struct extendedFileEntry) :
+ sizeof(struct fileEntry)),
+ 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;
}
@@ -1194,18 +1260,19 @@ static int udf_rename(struct inode *old_dir, struct dentry *old_dentry,
mark_inode_dirty(old_dir);
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);
- if (UDF_I_ALLOCTYPE(old_inode) == ICBTAG_FLAG_AD_IN_ICB) {
+ dir_fi->icb.extLocation = cpu_to_lelb(UDF_I(new_dir)->i_location);
+ udf_update_tag((char *)dir_fi,
+ (sizeof(struct fileIdentDesc) +
+ le16_to_cpu(dir_fi->lengthOfImpUse) + 3) & ~3);
+ if (old_iinfo->i_alloc_type == 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) {
+ if (new_inode)
inode_dec_link_count(new_inode);
- } else {
+ else {
inc_nlink(new_dir);
mark_inode_dirty(new_dir);
}
generated by cgit v1.2.3 (git 2.39.1) at 2024-05-01 17:21:40 +0000