On Mon, 2007-07-23 at 20:23 +0200, Ingo Molnar wrote:

how about: "if you've got some time then please also add a few comments, 
because the code was quite non-obvious to me and I misunderstood it when 
I tried to fix it. Thanks."

Not exactly what I was thinking of .. More like,

"LOCKING NOTE: This code uses the fact that get_cpu_var disables
preemption to maintain cpu affinity during the call to free_page()
otherwise it might free pages on another cpu."

(btw, your comment above comes off very snide, which I don't appreciate.
I haven't done anything that remotely warrants that.)

Daniel