- extoffset -= adsize;
- etype = udf_next_aext(inode, &bloc, &extoffset, &eloc, &elen, &bh, 1);
- if (etype == (EXT_NOT_RECORDED_NOT_ALLOCATED >> 30))
- {
- extoffset -= adsize;
- elen = EXT_NOT_RECORDED_NOT_ALLOCATED | (elen + offset);
- udf_write_aext(inode, bloc, &extoffset, eloc, elen, bh, 0);
- }
- else if (etype == (EXT_NOT_RECORDED_ALLOCATED >> 30))
- {
- lb_addr neloc = { 0, 0 };
- extoffset -= adsize;
- nelen = EXT_NOT_RECORDED_NOT_ALLOCATED |
- ((elen + offset + inode->i_sb->s_blocksize - 1) &
- ~(inode->i_sb->s_blocksize - 1));
- udf_write_aext(inode, bloc, &extoffset, neloc, nelen, bh, 1);
- udf_add_aext(inode, &bloc, &extoffset, eloc, (etype << 30) | elen, &bh, 1);
+ kernel_long_ad extent;
+
+ /*
+ * OK, there is not extent covering inode->i_size and
+ * no extent above inode->i_size => truncate is
+ * extending the file by 'offset' blocks.
+ */
+ if ((!epos.bh && epos.offset == udf_file_entry_alloc_offset(inode)) ||
+ (epos.bh && epos.offset == sizeof(struct allocExtDesc))) {
+ /* File has no extents at all or has empty last
+ * indirect extent! Create a fake extent... */
+ extent.extLocation.logicalBlockNum = 0;
+ extent.extLocation.partitionReferenceNum = 0;
+ extent.extLength = EXT_NOT_RECORDED_NOT_ALLOCATED;