Hi Jens,

Here's a new version of the laptop-mode patch (and control script). I've
made a couple of improvements because of your comments. The block_dump
functionality (including block dirtying) is back, and my alternative
functionality has gone. There's just one bit of the block dumping patch 
that I couldn't place, the bit in filemap.c. The 2.6 code is so 
different here that I really couldn't figure out what I should do with 
it. Do you have any idea where this has gone (and if it is still needed)?

Bart