ext2fs patch for large stores, RC1+20040304

[Ognyan Kulev]

Changes in RC1+20040304:

* ihash* -> hurd_ihash* (use revised libihash API)
* block << log2_block_size -> (off_t) block << log2_block_size (`block' 
is usually 32-bit and stores larger than 4G didn't work with old code)
* sleep(1) is called only when all cached blocks are referenced 
(improves performance).

There are some other minor changes.

This fixes what Andrew Mitchell reported to me on 2003-10-28.  I'm not 
100% sure if what Marco Gerards reported is fixed by this change. 
Marco, would you do some tests again?

And don't forget that if you test the patch, you'll probably want 
patched e2fsprogs too.  You can get the patch from 
http://debian.fmi.uni-sofia.bg/~ogi/hurd/ext3fs/ .  It applies cleanly 
to e2fsprogs_1.35-2 (with some offsets, but without *.rej files).

Regards,
ogi