udf: fix adding entry to a directory
When adding directory entry to a directory, we have to properly increase length of the last extent. Handle this similarly as extending regular files - make extents always have size multiple of block size (it will be truncated down to proper size in udf_clear_inode()). Signed-off-by: Jan Kara <jack@suse.cz> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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@ -289,7 +289,7 @@ struct buffer_head *udf_expand_dir_adinicb(struct inode *inode, int *block,
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eloc.logicalBlockNum = *block;
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eloc.partitionReferenceNum =
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iinfo->i_location.partitionReferenceNum;
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elen = inode->i_size;
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elen = inode->i_sb->s_blocksize;
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iinfo->i_lenExtents = elen;
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epos.bh = NULL;
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epos.block = iinfo->i_location;
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@ -395,7 +395,6 @@ static struct fileIdentDesc *udf_add_entry(struct inode *dir,
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}
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block = dinfo->i_location.logicalBlockNum;
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} else {
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block = udf_get_lb_pblock(dir->i_sb, dinfo->i_location, 0);
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fibh->sbh = fibh->ebh = NULL;
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@ -474,6 +473,14 @@ static struct fileIdentDesc *udf_add_entry(struct inode *dir,
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}
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add:
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if (dinfo->i_alloc_type != ICBTAG_FLAG_AD_IN_ICB) {
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elen = (elen + sb->s_blocksize - 1) & ~(sb->s_blocksize - 1);
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if (dinfo->i_alloc_type == ICBTAG_FLAG_AD_SHORT)
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epos.offset -= sizeof(short_ad);
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else if (dinfo->i_alloc_type == ICBTAG_FLAG_AD_LONG)
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epos.offset -= sizeof(long_ad);
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udf_write_aext(dir, &epos, eloc, elen, 1);
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}
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f_pos += nfidlen;
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if (dinfo->i_alloc_type == ICBTAG_FLAG_AD_IN_ICB &&
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@ -491,15 +498,9 @@ add:
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if (!fibh->sbh)
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return NULL;
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epos.block = dinfo->i_location;
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eloc.logicalBlockNum = block;
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eloc.partitionReferenceNum =
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dinfo->i_location.partitionReferenceNum;
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elen = dir->i_sb->s_blocksize;
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epos.offset = udf_file_entry_alloc_offset(dir);
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if (dinfo->i_alloc_type == ICBTAG_FLAG_AD_SHORT)
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epos.offset += sizeof(short_ad);
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else if (dinfo->i_alloc_type == ICBTAG_FLAG_AD_LONG)
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epos.offset += sizeof(long_ad);
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/* Load extent udf_expand_dir_adinicb() has created */
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udf_current_aext(dir, &epos, &eloc, &elen, 1);
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}
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if (sb->s_blocksize - fibh->eoffset >= nfidlen) {
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