git: kernel - migrate knote from zone to kmalloc

[Nicolas Thery]

Hello,

> I mean I will be switching it to objcache, although it doesn't require
> pool style allocation right now, so the current patch was/is fine.

FWIW I switched to kmalloc instead of objcache because I could not see how
to (easily) pre-initialize the knotes and my recollection of past
discussions [1] is that kmalloc
 is okay for non-preinitialised objects.  This was mainly a drive-by
change while investigating
the USB mouse crash.  Apologies if this goes against pending patches.
Feel free to switch
to objcache.

[1] http://leaf.dragonflybsd.org/mailarchive/kernel/2008-03/msg00080.html

Cheers,
Nicolas