Re: Ext2 zeros inode in directory entry when deleting files.

[Andreas Dilger]

On Mar 18, 2002  16:50 -0800, Paul Allen wrote:
> Perhaps you can imagine the trepidation with which I put
> forth the following fact:

Yes, it is always tough when you dip your toes into new waters.
In this case I think you may have something.  There is always
the chance that Al will still pipe in with "not doing that can
be exploited as a race condition by doing X, Y, and Z".

> With 2.4.6, the ext2_delete_entry() function moved from
> fs/ext2/namei.c to fs/ext2/dir.c and its behavior changed.
> Now, the inode number is always zeroed.

You could always just put an "else" in front of the zeroing, so
it looks like:

	if (pde)
                pde->rec_len = cpu_to_le16(to-from);
	else
		dir->inode = 0;

Let us know how it turns out (I think it will be OK).

Cheers, Andreas
--
Andreas Dilger  \ "If a man ate a pound of pasta and a pound of antipasto,
                 \  would they cancel out, leaving him still hungry?"
http://www-mddsp.enel.ucalgary.ca/People/adilger/               -- Dogbert