update CPUfreq documentation, and move it to extra directory.

Update x86 drivers so that they can live with the new cpufreq governor
"userspace".

sparc64 doesn't need any change, and I'll send the corresponding patch
for ARM to Russell King.

The old /proc/sys/cpu/ - based interface is nothing else than a
cpufreq governor which decides what frequency to use within a policy
based on userspace input. So, convert this interface (and add a
corresponding sysfs file, /sys/devices/sys/cpu0/scaling_setspeed) to
become a cpufreq governor, and move it out to an extra module (which
partly explains the size of this patch).

- update the VIA Longhaul driver to use frequency table helpers and
  the advanced cpufreq driver registration interface.
- cleanup of the ACPI P-States cpufreq driver
- very small update of the core -- set 24API values ahead of the setpolicy
  call.

- switch the AMD Elan, AMD PowerNow-K6 and the Cyrix/MediaGX driver
  to use the advanced cpufreq_driver registration process
- cleanups

Fix an operator precedence bug that caused a comparison to always
return false. Patch from John Levon <levon@movementarian.org>.

into home.transmeta.com:/home/torvalds/v2.5/linux

Patch from Dave Hansen.

Fix simple bounding error found by some Stanford-checker type thing
to use the proper MAX_MP_BUSSES define instead of a constant.

This simple patch just makes sure the PIT code is available for NUMA-Q
(as its TSCs are not synced).

Has been tested in my tree for over a month on UP, SMP, and NUMA and
compile tested against a variety of different configs.

At the moment, there are two different switches used, irqbalance_disabled
and no_balance_irq ... each of which switches half the code off. This
patch harmonises them into one (irqbalance_disable), and uses the old
subarch stuff as a default value so that this is auto-disabled on boxes
like NUMA-Q that can't cope with it.

Also renamed no_balance_irq to NO_BALANCE_IRQ as it's really a static
defined number now, not pretending to be a switch variable any more.
Now off by default for NUMA-Q, on by default for others, but can be
disabled with the boot time flag if people desire.

Patch from Matthew Dobson

Provide a pcibus_to_cpumask function in the topology infrastructure to
access the pre-existing array.

Patch from William Lee Irwin

Inline and simplify pfn_to_nid - this is called heavily, it's a tiny
function, and makes a noticable difference in system time for kernel
compiles (sorry, lost the data). Is only used on NUMA machines.

Has been tested in my tree for over a month on UP, SMP, and NUMA and
compile tested against a variety of different configs.

translation_table could be unintialised on machines other than NUMA-Q.
You never see this, as the compiler happens to optimise it away, but
it's still a Really Bad Idea (tm). Thanks to someone whose name I have
unfortunately forgotten for pointing this out.

Has been tested in my tree for over two weeks on UP, SMP, and NUMA and
compile tested against a variety of different configs.

Patch from William Lee Irwin

This moves the node's pgdat into the node's own local memory area along
with the lmem_map.

It only touches arch/i386/mm/discontig.c - ie can only affect NUMA
machines.  Has been tested in my tree for over a month on UP, SMP, and
NUMA and compile tested against a variety of different configs.

This fixes a bug introduced in the recent scsi_scan.c reorganisation.

Without this patch, my Alpha Jensen was crashing just after detecting
its first SCSI disk.  It is now working fine.

After 12 hours of testing it looks like this problem can be
solved by the following..

into kroah.com:/home/greg/linux/BK/gregkh-2.5

I believe && is meant here, but I cannot test it. This is against 2.5.63

Against 2.5.63. I believe && is meant here, not &.

Move the USB documentation to a separate file.

Just say -ENODEV

into kroah.com:/home/greg/linux/BK/gregkh-2.5

into groveronline.com:/root/bk/linux-acpi

Noticed by Martin Schwidefsky <schwidefsky@de.ibm.com>

dcache lock.

Found by Maneesh Soni <maneesh@in.ibm.com>

into home.transmeta.com:/home/torvalds/v2.5/linux

into home.transmeta.com:/home/torvalds/v2.5/linux

partly based on a patch from Tariq Shureih to the kernel janitors list.