Allows usage of quotes in menu options.

By Robert Love, this patch sets the maximum number
of CPUs a kernel can support (From 2-32 on IA32)
The reasoning behind this is a space saving of
8KB per CPU.

From 2.4, mostly just things like quietening compiler warnings.

Not all arch's behave the same way as x86 during
the build process, so this makes make rpm adjust
for non-x86

- Makes UP preempt safe.
- Avoids double call of mce_checkregs on SMP

From 2.4, these diffs..
- Make use of dma channel 0 configurable
- request region cleanup
- fix list initialisation bug
- fix escd /proc security hole
- add opl3sax quirk

This patch attempts to clean up the horrible macro's in io.h,
and was done some time ago by Dave McCracken iirc.

As the comment suggests - this is harmless
on non mq systems, so we may as well have cleaner code.

(Also a printk level addition)

Nothing uses v86mode any more, so this removes it,
and its space in the thread_struct.

As per CodingStyle

- Align comments
- Remove hardcoded value (Use proper alignment
  on systems with 64byte cachelines)

Code cleanup..

memcpy_to/fromio shouldn't be using memcpy,
as this could equate to the versions that
prefetch, which could upset some devices.

Other slabs have '_' to separate words instead of ' '.
Same patch went into 2.4

- remove unneeded includes (lots of)
- Some Dell folks noted that the switch to realmode needs
  to be a wbinvd instead of an invd on some boxes.
  This has been in -dj for eons, and has had no ill effect.

Several new boards, and fix a forward reference by
moving a function around.

Numerous updates from 2.4 (see changelog)

- moves functions around to match where they are in 2.4
  (makes syncing easier)
- Adds some extra entries

- Recognise and decode trace cache
- Add several missing elements to descriptor table
- Xeon errata workaround
- updated names for P4's

From 2.4, see comment in diff.