udf: Remove old directory iteration code
Remove old directory iteration code that is now unused. Signed-off-by: Jan Kara <jack@suse.cz>
This commit is contained in:
parent
e9109a92d2
commit
1e0290d61a
@ -470,184 +470,6 @@ int udf_fiiter_append_blk(struct udf_fileident_iter *iter)
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return 0;
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}
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struct fileIdentDesc *udf_fileident_read(struct inode *dir, loff_t *nf_pos,
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struct udf_fileident_bh *fibh,
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struct fileIdentDesc *cfi,
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struct extent_position *epos,
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struct kernel_lb_addr *eloc, uint32_t *elen,
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sector_t *offset)
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{
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struct fileIdentDesc *fi;
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int i, num;
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udf_pblk_t block;
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struct buffer_head *tmp, *bha[16];
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struct udf_inode_info *iinfo = UDF_I(dir);
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fibh->soffset = fibh->eoffset;
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if (iinfo->i_alloc_type == ICBTAG_FLAG_AD_IN_ICB) {
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fi = udf_get_fileident(iinfo->i_data -
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(iinfo->i_efe ?
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sizeof(struct extendedFileEntry) :
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sizeof(struct fileEntry)),
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dir->i_sb->s_blocksize,
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&(fibh->eoffset));
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if (!fi)
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return NULL;
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*nf_pos += fibh->eoffset - fibh->soffset;
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memcpy((uint8_t *)cfi, (uint8_t *)fi,
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sizeof(struct fileIdentDesc));
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return fi;
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}
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if (fibh->eoffset == dir->i_sb->s_blocksize) {
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uint32_t lextoffset = epos->offset;
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unsigned char blocksize_bits = dir->i_sb->s_blocksize_bits;
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if (udf_next_aext(dir, epos, eloc, elen, 1) !=
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(EXT_RECORDED_ALLOCATED >> 30))
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return NULL;
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block = udf_get_lb_pblock(dir->i_sb, eloc, *offset);
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(*offset)++;
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if ((*offset << blocksize_bits) >= *elen)
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*offset = 0;
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else
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epos->offset = lextoffset;
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brelse(fibh->sbh);
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fibh->sbh = fibh->ebh = udf_tread(dir->i_sb, block);
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if (!fibh->sbh)
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return NULL;
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fibh->soffset = fibh->eoffset = 0;
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if (!(*offset & ((16 >> (blocksize_bits - 9)) - 1))) {
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i = 16 >> (blocksize_bits - 9);
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if (i + *offset > (*elen >> blocksize_bits))
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i = (*elen >> blocksize_bits)-*offset;
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for (num = 0; i > 0; i--) {
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block = udf_get_lb_pblock(dir->i_sb, eloc,
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*offset + i);
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tmp = udf_tgetblk(dir->i_sb, block);
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if (tmp && !buffer_uptodate(tmp) &&
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!buffer_locked(tmp))
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bha[num++] = tmp;
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else
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brelse(tmp);
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}
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if (num) {
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bh_readahead_batch(num, bha, REQ_RAHEAD);
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for (i = 0; i < num; i++)
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brelse(bha[i]);
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}
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}
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} else if (fibh->sbh != fibh->ebh) {
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brelse(fibh->sbh);
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fibh->sbh = fibh->ebh;
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}
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fi = udf_get_fileident(fibh->sbh->b_data, dir->i_sb->s_blocksize,
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&(fibh->eoffset));
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if (!fi)
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return NULL;
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*nf_pos += fibh->eoffset - fibh->soffset;
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if (fibh->eoffset <= dir->i_sb->s_blocksize) {
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memcpy((uint8_t *)cfi, (uint8_t *)fi,
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sizeof(struct fileIdentDesc));
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} else if (fibh->eoffset > dir->i_sb->s_blocksize) {
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uint32_t lextoffset = epos->offset;
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if (udf_next_aext(dir, epos, eloc, elen, 1) !=
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(EXT_RECORDED_ALLOCATED >> 30))
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return NULL;
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block = udf_get_lb_pblock(dir->i_sb, eloc, *offset);
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(*offset)++;
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if ((*offset << dir->i_sb->s_blocksize_bits) >= *elen)
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*offset = 0;
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else
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epos->offset = lextoffset;
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fibh->soffset -= dir->i_sb->s_blocksize;
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fibh->eoffset -= dir->i_sb->s_blocksize;
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fibh->ebh = udf_tread(dir->i_sb, block);
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if (!fibh->ebh)
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return NULL;
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if (sizeof(struct fileIdentDesc) > -fibh->soffset) {
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int fi_len;
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memcpy((uint8_t *)cfi, (uint8_t *)fi, -fibh->soffset);
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memcpy((uint8_t *)cfi - fibh->soffset,
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fibh->ebh->b_data,
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sizeof(struct fileIdentDesc) + fibh->soffset);
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fi_len = udf_dir_entry_len(cfi);
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*nf_pos += fi_len - (fibh->eoffset - fibh->soffset);
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fibh->eoffset = fibh->soffset + fi_len;
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} else {
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memcpy((uint8_t *)cfi, (uint8_t *)fi,
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sizeof(struct fileIdentDesc));
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}
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}
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/* Got last entry outside of dir size - fs is corrupted! */
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if (*nf_pos > dir->i_size)
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return NULL;
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return fi;
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}
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struct fileIdentDesc *udf_get_fileident(void *buffer, int bufsize, int *offset)
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{
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struct fileIdentDesc *fi;
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int lengthThisIdent;
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uint8_t *ptr;
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int padlen;
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if ((!buffer) || (!offset)) {
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udf_debug("invalidparms, buffer=%p, offset=%p\n",
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buffer, offset);
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return NULL;
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}
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ptr = buffer;
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if ((*offset > 0) && (*offset < bufsize))
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ptr += *offset;
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fi = (struct fileIdentDesc *)ptr;
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if (fi->descTag.tagIdent != cpu_to_le16(TAG_IDENT_FID)) {
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udf_debug("0x%x != TAG_IDENT_FID\n",
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le16_to_cpu(fi->descTag.tagIdent));
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udf_debug("offset: %d sizeof: %lu bufsize: %d\n",
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*offset, (unsigned long)sizeof(struct fileIdentDesc),
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bufsize);
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return NULL;
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}
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if ((*offset + sizeof(struct fileIdentDesc)) > bufsize)
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lengthThisIdent = sizeof(struct fileIdentDesc);
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else
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lengthThisIdent = sizeof(struct fileIdentDesc) +
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fi->lengthFileIdent + le16_to_cpu(fi->lengthOfImpUse);
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/* we need to figure padding, too! */
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padlen = lengthThisIdent % UDF_NAME_PAD;
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if (padlen)
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lengthThisIdent += (UDF_NAME_PAD - padlen);
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*offset = *offset + lengthThisIdent;
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return fi;
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}
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struct short_ad *udf_get_fileshortad(uint8_t *ptr, int maxoffset, uint32_t *offset,
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int inc)
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{
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fs/udf/namei.c
505
fs/udf/namei.c
@ -41,105 +41,6 @@ static inline int udf_match(int len1, const unsigned char *name1, int len2,
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return !memcmp(name1, name2, len1);
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}
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int udf_write_fi(struct inode *inode, struct fileIdentDesc *cfi,
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struct fileIdentDesc *sfi, struct udf_fileident_bh *fibh,
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uint8_t *impuse, uint8_t *fileident)
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{
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uint16_t crclen = fibh->eoffset - fibh->soffset - sizeof(struct tag);
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uint16_t crc;
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int offset;
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uint16_t liu = le16_to_cpu(cfi->lengthOfImpUse);
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uint8_t lfi = cfi->lengthFileIdent;
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int padlen = fibh->eoffset - fibh->soffset - liu - lfi -
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sizeof(struct fileIdentDesc);
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int adinicb = 0;
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if (UDF_I(inode)->i_alloc_type == ICBTAG_FLAG_AD_IN_ICB)
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adinicb = 1;
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offset = fibh->soffset + sizeof(struct fileIdentDesc);
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if (impuse) {
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if (adinicb || (offset + liu < 0)) {
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memcpy((uint8_t *)sfi->impUse, impuse, liu);
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} else if (offset >= 0) {
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memcpy(fibh->ebh->b_data + offset, impuse, liu);
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} else {
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memcpy((uint8_t *)sfi->impUse, impuse, -offset);
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memcpy(fibh->ebh->b_data, impuse - offset,
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liu + offset);
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}
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}
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offset += liu;
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if (fileident) {
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if (adinicb || (offset + lfi < 0)) {
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memcpy(sfi->impUse + liu, fileident, lfi);
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} else if (offset >= 0) {
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memcpy(fibh->ebh->b_data + offset, fileident, lfi);
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} else {
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memcpy(sfi->impUse + liu, fileident, -offset);
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memcpy(fibh->ebh->b_data, fileident - offset,
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lfi + offset);
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}
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}
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offset += lfi;
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if (adinicb || (offset + padlen < 0)) {
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memset(sfi->impUse + liu + lfi, 0x00, padlen);
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} else if (offset >= 0) {
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memset(fibh->ebh->b_data + offset, 0x00, padlen);
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} else {
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memset(sfi->impUse + liu + lfi, 0x00, -offset);
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memset(fibh->ebh->b_data, 0x00, padlen + offset);
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}
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crc = crc_itu_t(0, (uint8_t *)cfi + sizeof(struct tag),
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sizeof(struct fileIdentDesc) - sizeof(struct tag));
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if (fibh->sbh == fibh->ebh) {
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crc = crc_itu_t(crc, (uint8_t *)sfi->impUse,
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crclen + sizeof(struct tag) -
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sizeof(struct fileIdentDesc));
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} else if (sizeof(struct fileIdentDesc) >= -fibh->soffset) {
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crc = crc_itu_t(crc, fibh->ebh->b_data +
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sizeof(struct fileIdentDesc) +
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fibh->soffset,
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crclen + sizeof(struct tag) -
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sizeof(struct fileIdentDesc));
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} else {
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crc = crc_itu_t(crc, (uint8_t *)sfi->impUse,
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-fibh->soffset - sizeof(struct fileIdentDesc));
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crc = crc_itu_t(crc, fibh->ebh->b_data, fibh->eoffset);
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}
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cfi->descTag.descCRC = cpu_to_le16(crc);
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cfi->descTag.descCRCLength = cpu_to_le16(crclen);
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cfi->descTag.tagChecksum = udf_tag_checksum(&cfi->descTag);
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if (adinicb || (sizeof(struct fileIdentDesc) <= -fibh->soffset)) {
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memcpy((uint8_t *)sfi, (uint8_t *)cfi,
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sizeof(struct fileIdentDesc));
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} else {
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memcpy((uint8_t *)sfi, (uint8_t *)cfi, -fibh->soffset);
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memcpy(fibh->ebh->b_data, (uint8_t *)cfi - fibh->soffset,
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sizeof(struct fileIdentDesc) + fibh->soffset);
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}
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if (adinicb) {
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mark_inode_dirty(inode);
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} else {
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if (fibh->sbh != fibh->ebh)
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mark_buffer_dirty_inode(fibh->ebh, inode);
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mark_buffer_dirty_inode(fibh->sbh, inode);
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}
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inode_inc_iversion(inode);
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return 0;
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}
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/**
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* udf_fiiter_find_entry - find entry in given directory.
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*
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@ -207,161 +108,6 @@ out_ok:
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return ret;
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}
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/**
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* udf_find_entry - find entry in given directory.
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*
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* @dir: directory inode to search in
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* @child: qstr of the name
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* @fibh: buffer head / inode with file identifier descriptor we found
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* @cfi: found file identifier descriptor with given name
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*
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* This function searches in the directory @dir for a file name @child. When
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* found, @fibh points to the buffer head(s) (bh is NULL for in ICB
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* directories) containing the file identifier descriptor (FID). In that case
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* the function returns pointer to the FID in the buffer or inode - but note
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* that FID may be split among two buffers (blocks) so accessing it via that
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* pointer isn't easily possible. This pointer can be used only as an iterator
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* for other directory manipulation functions. For inspection of the FID @cfi
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* can be used - the found FID is copied there.
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*
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* Returns pointer to FID, NULL when nothing found, or error code.
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*/
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static struct fileIdentDesc *udf_find_entry(struct inode *dir,
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const struct qstr *child,
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struct udf_fileident_bh *fibh,
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struct fileIdentDesc *cfi)
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{
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struct fileIdentDesc *fi = NULL;
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loff_t f_pos;
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udf_pblk_t block;
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int flen;
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unsigned char *fname = NULL, *copy_name = NULL;
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unsigned char *nameptr;
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uint8_t lfi;
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uint16_t liu;
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loff_t size;
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struct kernel_lb_addr eloc;
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uint32_t elen;
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sector_t offset;
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struct extent_position epos = {};
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struct udf_inode_info *dinfo = UDF_I(dir);
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int isdotdot = child->len == 2 &&
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child->name[0] == '.' && child->name[1] == '.';
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struct super_block *sb = dir->i_sb;
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size = udf_ext0_offset(dir) + dir->i_size;
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f_pos = udf_ext0_offset(dir);
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fibh->sbh = fibh->ebh = NULL;
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fibh->soffset = fibh->eoffset = f_pos & (sb->s_blocksize - 1);
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if (dinfo->i_alloc_type != ICBTAG_FLAG_AD_IN_ICB) {
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if (inode_bmap(dir, f_pos >> sb->s_blocksize_bits, &epos,
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&eloc, &elen, &offset) != (EXT_RECORDED_ALLOCATED >> 30)) {
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fi = ERR_PTR(-EIO);
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goto out_err;
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}
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block = udf_get_lb_pblock(sb, &eloc, offset);
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if ((++offset << sb->s_blocksize_bits) < elen) {
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if (dinfo->i_alloc_type == ICBTAG_FLAG_AD_SHORT)
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epos.offset -= sizeof(struct short_ad);
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else if (dinfo->i_alloc_type == ICBTAG_FLAG_AD_LONG)
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epos.offset -= sizeof(struct long_ad);
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} else
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offset = 0;
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fibh->sbh = fibh->ebh = udf_tread(sb, block);
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if (!fibh->sbh) {
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fi = ERR_PTR(-EIO);
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goto out_err;
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}
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}
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fname = kmalloc(UDF_NAME_LEN, GFP_NOFS);
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if (!fname) {
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fi = ERR_PTR(-ENOMEM);
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goto out_err;
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}
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while (f_pos < size) {
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fi = udf_fileident_read(dir, &f_pos, fibh, cfi, &epos, &eloc,
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&elen, &offset);
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if (!fi) {
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fi = ERR_PTR(-EIO);
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goto out_err;
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}
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liu = le16_to_cpu(cfi->lengthOfImpUse);
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lfi = cfi->lengthFileIdent;
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if (fibh->sbh == fibh->ebh) {
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nameptr = udf_get_fi_ident(fi);
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} else {
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int poffset; /* Unpaded ending offset */
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poffset = fibh->soffset + sizeof(struct fileIdentDesc) +
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liu + lfi;
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if (poffset >= lfi)
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nameptr = (uint8_t *)(fibh->ebh->b_data +
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poffset - lfi);
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else {
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if (!copy_name) {
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copy_name = kmalloc(UDF_NAME_LEN_CS0,
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GFP_NOFS);
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if (!copy_name) {
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fi = ERR_PTR(-ENOMEM);
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goto out_err;
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}
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}
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nameptr = copy_name;
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memcpy(nameptr, udf_get_fi_ident(fi),
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lfi - poffset);
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memcpy(nameptr + lfi - poffset,
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fibh->ebh->b_data, poffset);
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}
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}
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if ((cfi->fileCharacteristics & FID_FILE_CHAR_DELETED) != 0) {
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if (!UDF_QUERY_FLAG(sb, UDF_FLAG_UNDELETE))
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continue;
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}
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if ((cfi->fileCharacteristics & FID_FILE_CHAR_HIDDEN) != 0) {
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if (!UDF_QUERY_FLAG(sb, UDF_FLAG_UNHIDE))
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continue;
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}
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if ((cfi->fileCharacteristics & FID_FILE_CHAR_PARENT) &&
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isdotdot)
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goto out_ok;
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if (!lfi)
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continue;
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flen = udf_get_filename(sb, nameptr, lfi, fname, UDF_NAME_LEN);
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if (flen < 0) {
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fi = ERR_PTR(flen);
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goto out_err;
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}
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if (udf_match(flen, fname, child->len, child->name))
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goto out_ok;
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}
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fi = NULL;
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out_err:
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if (fibh->sbh != fibh->ebh)
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brelse(fibh->ebh);
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brelse(fibh->sbh);
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out_ok:
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brelse(epos.bh);
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kfree(fname);
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kfree(copy_name);
|
||||
|
||||
return fi;
|
||||
}
|
||||
|
||||
static struct dentry *udf_lookup(struct inode *dir, struct dentry *dentry,
|
||||
unsigned int flags)
|
||||
{
|
||||
@ -582,245 +328,6 @@ store_fi:
|
||||
return 0;
|
||||
}
|
||||
|
||||
static struct fileIdentDesc *udf_add_entry(struct inode *dir,
|
||||
struct dentry *dentry,
|
||||
struct udf_fileident_bh *fibh,
|
||||
struct fileIdentDesc *cfi, int *err)
|
||||
{
|
||||
struct super_block *sb = dir->i_sb;
|
||||
struct fileIdentDesc *fi = NULL;
|
||||
unsigned char *name = NULL;
|
||||
int namelen;
|
||||
loff_t f_pos;
|
||||
loff_t size = udf_ext0_offset(dir) + dir->i_size;
|
||||
int nfidlen;
|
||||
udf_pblk_t block;
|
||||
struct kernel_lb_addr eloc;
|
||||
uint32_t elen = 0;
|
||||
sector_t offset;
|
||||
struct extent_position epos = {};
|
||||
struct udf_inode_info *dinfo;
|
||||
|
||||
fibh->sbh = fibh->ebh = NULL;
|
||||
name = kmalloc(UDF_NAME_LEN_CS0, GFP_NOFS);
|
||||
if (!name) {
|
||||
*err = -ENOMEM;
|
||||
goto out_err;
|
||||
}
|
||||
|
||||
if (dentry) {
|
||||
if (!dentry->d_name.len) {
|
||||
*err = -EINVAL;
|
||||
goto out_err;
|
||||
}
|
||||
namelen = udf_put_filename(sb, dentry->d_name.name,
|
||||
dentry->d_name.len,
|
||||
name, UDF_NAME_LEN_CS0);
|
||||
if (!namelen) {
|
||||
*err = -ENAMETOOLONG;
|
||||
goto out_err;
|
||||
}
|
||||
} else {
|
||||
namelen = 0;
|
||||
}
|
||||
|
||||
nfidlen = ALIGN(sizeof(struct fileIdentDesc) + namelen, UDF_NAME_PAD);
|
||||
|
||||
f_pos = udf_ext0_offset(dir);
|
||||
|
||||
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) {
|
||||
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,
|
||||
&dinfo->i_location, 0);
|
||||
fibh->soffset = fibh->eoffset = sb->s_blocksize;
|
||||
goto add;
|
||||
}
|
||||
block = udf_get_lb_pblock(dir->i_sb, &eloc, offset);
|
||||
if ((++offset << dir->i_sb->s_blocksize_bits) < elen) {
|
||||
if (dinfo->i_alloc_type == ICBTAG_FLAG_AD_SHORT)
|
||||
epos.offset -= sizeof(struct short_ad);
|
||||
else if (dinfo->i_alloc_type == ICBTAG_FLAG_AD_LONG)
|
||||
epos.offset -= sizeof(struct long_ad);
|
||||
} else
|
||||
offset = 0;
|
||||
|
||||
fibh->sbh = fibh->ebh = udf_tread(dir->i_sb, block);
|
||||
if (!fibh->sbh) {
|
||||
*err = -EIO;
|
||||
goto out_err;
|
||||
}
|
||||
|
||||
block = dinfo->i_location.logicalBlockNum;
|
||||
}
|
||||
|
||||
while (f_pos < size) {
|
||||
fi = udf_fileident_read(dir, &f_pos, fibh, cfi, &epos, &eloc,
|
||||
&elen, &offset);
|
||||
|
||||
if (!fi) {
|
||||
*err = -EIO;
|
||||
goto out_err;
|
||||
}
|
||||
|
||||
if ((cfi->fileCharacteristics & FID_FILE_CHAR_DELETED) != 0) {
|
||||
if (udf_dir_entry_len(cfi) == nfidlen) {
|
||||
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))
|
||||
goto out_ok;
|
||||
else {
|
||||
*err = -EIO;
|
||||
goto out_err;
|
||||
}
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
add:
|
||||
f_pos += nfidlen;
|
||||
|
||||
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);
|
||||
if (fibh->sbh != fibh->ebh)
|
||||
brelse(fibh->ebh);
|
||||
brelse(fibh->sbh);
|
||||
fibh->sbh = fibh->ebh =
|
||||
udf_expand_dir_adinicb(dir, &block, err);
|
||||
if (!fibh->sbh)
|
||||
goto out_err;
|
||||
epos.block = dinfo->i_location;
|
||||
epos.offset = udf_file_entry_alloc_offset(dir);
|
||||
/* Load extent udf_expand_dir_adinicb() has created */
|
||||
udf_current_aext(dir, &epos, &eloc, &elen, 1);
|
||||
}
|
||||
|
||||
/* Entry fits into current block? */
|
||||
if (sb->s_blocksize - fibh->eoffset >= nfidlen) {
|
||||
fibh->soffset = fibh->eoffset;
|
||||
fibh->eoffset += nfidlen;
|
||||
if (fibh->sbh != fibh->ebh) {
|
||||
brelse(fibh->sbh);
|
||||
fibh->sbh = fibh->ebh;
|
||||
}
|
||||
|
||||
if (dinfo->i_alloc_type == ICBTAG_FLAG_AD_IN_ICB) {
|
||||
block = dinfo->i_location.logicalBlockNum;
|
||||
fi = (struct fileIdentDesc *)
|
||||
(dinfo->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);
|
||||
}
|
||||
} else {
|
||||
/* Round up last extent in the file */
|
||||
elen = (elen + sb->s_blocksize - 1) & ~(sb->s_blocksize - 1);
|
||||
if (dinfo->i_alloc_type == ICBTAG_FLAG_AD_SHORT)
|
||||
epos.offset -= sizeof(struct short_ad);
|
||||
else if (dinfo->i_alloc_type == ICBTAG_FLAG_AD_LONG)
|
||||
epos.offset -= sizeof(struct long_ad);
|
||||
udf_write_aext(dir, &epos, &eloc, elen, 1);
|
||||
dinfo->i_lenExtents = (dinfo->i_lenExtents + sb->s_blocksize
|
||||
- 1) & ~(sb->s_blocksize - 1);
|
||||
|
||||
fibh->soffset = fibh->eoffset - sb->s_blocksize;
|
||||
fibh->eoffset += nfidlen - sb->s_blocksize;
|
||||
if (fibh->sbh != fibh->ebh) {
|
||||
brelse(fibh->sbh);
|
||||
fibh->sbh = fibh->ebh;
|
||||
}
|
||||
|
||||
block = eloc.logicalBlockNum + ((elen - 1) >>
|
||||
dir->i_sb->s_blocksize_bits);
|
||||
fibh->ebh = udf_bread(dir,
|
||||
f_pos >> dir->i_sb->s_blocksize_bits, 1, err);
|
||||
if (!fibh->ebh)
|
||||
goto out_err;
|
||||
/* Extents could have been merged, invalidate our position */
|
||||
brelse(epos.bh);
|
||||
epos.bh = NULL;
|
||||
epos.block = dinfo->i_location;
|
||||
epos.offset = udf_file_entry_alloc_offset(dir);
|
||||
|
||||
if (!fibh->soffset) {
|
||||
/* Find the freshly allocated block */
|
||||
while (udf_next_aext(dir, &epos, &eloc, &elen, 1) ==
|
||||
(EXT_RECORDED_ALLOCATED >> 30))
|
||||
;
|
||||
block = eloc.logicalBlockNum + ((elen - 1) >>
|
||||
dir->i_sb->s_blocksize_bits);
|
||||
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);
|
||||
}
|
||||
}
|
||||
|
||||
memset(cfi, 0, sizeof(struct fileIdentDesc));
|
||||
if (UDF_SB(sb)->s_udfrev >= 0x0200)
|
||||
udf_new_tag((char *)cfi, TAG_IDENT_FID, 3, 1, block,
|
||||
sizeof(struct tag));
|
||||
else
|
||||
udf_new_tag((char *)cfi, TAG_IDENT_FID, 2, 1, block,
|
||||
sizeof(struct 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)) {
|
||||
dir->i_size += nfidlen;
|
||||
if (dinfo->i_alloc_type == ICBTAG_FLAG_AD_IN_ICB)
|
||||
dinfo->i_lenAlloc += nfidlen;
|
||||
else {
|
||||
/* Find the last extent and truncate it to proper size */
|
||||
while (udf_next_aext(dir, &epos, &eloc, &elen, 1) ==
|
||||
(EXT_RECORDED_ALLOCATED >> 30))
|
||||
;
|
||||
elen -= dinfo->i_lenExtents - dir->i_size;
|
||||
if (dinfo->i_alloc_type == ICBTAG_FLAG_AD_SHORT)
|
||||
epos.offset -= sizeof(struct short_ad);
|
||||
else if (dinfo->i_alloc_type == ICBTAG_FLAG_AD_LONG)
|
||||
epos.offset -= sizeof(struct long_ad);
|
||||
udf_write_aext(dir, &epos, &eloc, elen, 1);
|
||||
dinfo->i_lenExtents = dir->i_size;
|
||||
}
|
||||
|
||||
mark_inode_dirty(dir);
|
||||
goto out_ok;
|
||||
} else {
|
||||
*err = -EIO;
|
||||
goto out_err;
|
||||
}
|
||||
|
||||
out_err:
|
||||
fi = NULL;
|
||||
if (fibh->sbh != fibh->ebh)
|
||||
brelse(fibh->ebh);
|
||||
brelse(fibh->sbh);
|
||||
out_ok:
|
||||
brelse(epos.bh);
|
||||
kfree(name);
|
||||
return fi;
|
||||
}
|
||||
|
||||
static void udf_fiiter_delete_entry(struct udf_fileident_iter *iter)
|
||||
{
|
||||
iter->fi.fileCharacteristics |= FID_FILE_CHAR_DELETED;
|
||||
@ -831,18 +338,6 @@ static void udf_fiiter_delete_entry(struct udf_fileident_iter *iter)
|
||||
udf_fiiter_write_fi(iter, NULL);
|
||||
}
|
||||
|
||||
static int udf_delete_entry(struct inode *inode, struct fileIdentDesc *fi,
|
||||
struct udf_fileident_bh *fibh,
|
||||
struct fileIdentDesc *cfi)
|
||||
{
|
||||
cfi->fileCharacteristics |= FID_FILE_CHAR_DELETED;
|
||||
|
||||
if (UDF_QUERY_FLAG(inode->i_sb, UDF_FLAG_STRICT))
|
||||
memset(&(cfi->icb), 0x00, sizeof(struct long_ad));
|
||||
|
||||
return udf_write_fi(inode, cfi, fi, fibh, NULL, NULL);
|
||||
}
|
||||
|
||||
static int udf_add_nondir(struct dentry *dentry, struct inode *inode)
|
||||
{
|
||||
struct udf_inode_info *iinfo = UDF_I(inode);
|
||||
|
@ -104,13 +104,6 @@ struct udf_fileident_iter {
|
||||
*/
|
||||
};
|
||||
|
||||
struct udf_fileident_bh {
|
||||
struct buffer_head *sbh;
|
||||
struct buffer_head *ebh;
|
||||
int soffset;
|
||||
int eoffset;
|
||||
};
|
||||
|
||||
struct udf_vds_record {
|
||||
uint32_t block;
|
||||
uint32_t volDescSeqNum;
|
||||
@ -139,19 +132,12 @@ struct inode *udf_find_metadata_inode_efe(struct super_block *sb,
|
||||
u32 meta_file_loc, u32 partition_num);
|
||||
|
||||
/* namei.c */
|
||||
extern int udf_write_fi(struct inode *inode, struct fileIdentDesc *,
|
||||
struct fileIdentDesc *, struct udf_fileident_bh *,
|
||||
uint8_t *, uint8_t *);
|
||||
static inline unsigned int udf_dir_entry_len(struct fileIdentDesc *cfi)
|
||||
{
|
||||
return ALIGN(sizeof(struct fileIdentDesc) +
|
||||
le16_to_cpu(cfi->lengthOfImpUse) + cfi->lengthFileIdent,
|
||||
UDF_NAME_PAD);
|
||||
}
|
||||
static inline uint8_t *udf_get_fi_ident(struct fileIdentDesc *fi)
|
||||
{
|
||||
return ((uint8_t *)(fi + 1)) + le16_to_cpu(fi->lengthOfImpUse);
|
||||
}
|
||||
|
||||
/* file.c */
|
||||
extern long udf_ioctl(struct file *, unsigned int, unsigned long);
|
||||
@ -266,14 +252,6 @@ void udf_fiiter_release(struct udf_fileident_iter *iter);
|
||||
void udf_fiiter_write_fi(struct udf_fileident_iter *iter, uint8_t *impuse);
|
||||
void udf_fiiter_update_elen(struct udf_fileident_iter *iter, uint32_t new_elen);
|
||||
int udf_fiiter_append_blk(struct udf_fileident_iter *iter);
|
||||
extern struct fileIdentDesc *udf_fileident_read(struct inode *, loff_t *,
|
||||
struct udf_fileident_bh *,
|
||||
struct fileIdentDesc *,
|
||||
struct extent_position *,
|
||||
struct kernel_lb_addr *, uint32_t *,
|
||||
sector_t *);
|
||||
extern struct fileIdentDesc *udf_get_fileident(void *buffer, int bufsize,
|
||||
int *offset);
|
||||
extern struct long_ad *udf_get_filelongad(uint8_t *, int, uint32_t *, int);
|
||||
extern struct short_ad *udf_get_fileshortad(uint8_t *, int, uint32_t *, int);
|
||||
|
||||
|
Loading…
Reference in New Issue
Block a user