Sync up against current, and roll in a bunch of pending patches.

Change of technique this time, as I found a way to work with BitKeeper
that I'm comfortable with. On the upside, syncing gets easier for me,
on the downside, I'm still experimenting, so some bits might be a bit
bumpy, with maybe 1-2 files there that shouldn't be etc..

Known to be broken (Disable these for now):
- 2.4 IDE forward port.
- PNPBIOS

As usual,..

Patch against 2.5.30 vanilla is available from:
ftp://ftp.kernel.org/pub/linux/kernel/people/davej/patches/2.5/

Merged patch archive: http://www.codemonkey.org.uk/patches/merged/

 -- Davej.

2.5.30-dj1
o   Merge bits from 2.4.19 release candidates.
o   Backout the buggy dcache list_ conversion.
o   Remove some more bogus bits Christoph Hellwig found.
o   Fix mask calculation in x86-64 MTRR driver.		(Me)
o   Fix up incorrect C in cpufreq macros.		(Neil Booth)
o   Add missing identification of Intel CPUs.		(Patrick Mochel)