this is old, but still in 2.3.x. and it's not joliet related.
the bug is in fs/isofs/dir.c. try the patch below. it works like
2.0.x: _first_ check for (offset < bufsize) and then use *(buf+offset)
to decide if the directory has more entries. all versions from
2.1.x (x=60 or even earlier) on do it the other way around. and this
leads to cut off directory entries if (*(buf+bufsize) == 0).
oliver
--- linux/fs/isofs/dir.c.orig Sun Nov 21 19:11:52 1999
+++ linux/fs/isofs/dir.c Sun Nov 21 19:35:58 1999
@@ -157,6 +157,22 @@
block, offset, filp->f_pos);
printk("inode->i_size = %x\n",inode->i_size);
#endif
+ /* Next directory_record on next CDROM sector */
+ if (offset >= bufsize) {
+#ifdef DEBUG
+ printk("offset >= bufsize\n");
+#endif
+ brelse(bh);
+ offset = 0;
+ block = isofs_bmap(inode, (filp->f_pos) >> bufbits);
+ if (!block)
+ return 0;
+ bh = breada(inode->i_dev, block, bufsize, filp->f_pos, inode->i_size);
+ if (!bh)
+ return 0;
+ continue;
+ }
+
de = (struct iso_directory_record *) (bh->b_data + offset);
if(first_de) inode_number = (block << bufbits) + (offset & (bufsize - 1));
@@ -170,17 +186,12 @@
CDROM sector. If we are at the end of the directory, we
kick out of the while loop. */
- if ((de_len == 0) || (offset >= bufsize) ) {
+ if (de_len == 0) {
brelse(bh);
- if (de_len == 0) {
- filp->f_pos = ((filp->f_pos & ~(ISOFS_BLOCK_SIZE - 1))
- + ISOFS_BLOCK_SIZE);
- offset = 0;
- } else {
- offset -= bufsize;
- filp->f_pos += offset;
- }
+ filp->f_pos = ((filp->f_pos & ~(ISOFS_BLOCK_SIZE - 1))
+ + ISOFS_BLOCK_SIZE);
+ offset = 0;
if (filp->f_pos >= inode->i_size)
return 0;
-
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