Co-authored with Yoshfuji Hideaki.

With help from Yoshfuji Hideaki.

It broke some existing setups, so let's drop it until we have
a better notion of how to do this.

This is an obvious scalability improvement for write()s.  We used a
global lock to protect the inode writecount (updated on every open for
writing) - this just makes it use the existing inode->i_lock instead.

Compiles & boots fine on x86 SMP.

into home.osdl.org:/home/torvalds/v2.5/linux

into kernel.bkbits.net:/home/davem/sparc-2.6

into home.osdl.org:/home/torvalds/v2.5/linux

into home.osdl.org:/home/torvalds/v2.5/linux

into sgi.com:/source2/xfs-linux-2.6

SGI Modid: xfs-linux:xfs-kern:166504a

	via /proc/efi/fpswa, rather than printing it at boot time.

into kleikamp.dyn.webahead.ibm.com:/shaggy/bk/jfs-2.5

Periodically check for outstanding MCA or INIT records and pass them to
user space salinfo.

Correct the "did we recover from MCA test" and move it up a level to
simplify interaction with debuggers.

Thanks to Nick's domain patch, the kernel worked fine with
smp_num_siblings = 4 (in simulation).

into home.osdl.org:/home/torvalds/v2.5/linux

Another fix from Dominik.

From Dominik..
The different P-4-M steppings have different "ebx" values. Analyze it
correctly to sort out Pentium-4-based Celerons.

Move the table verification to an extra function.

Remove the *ppst table, and remove an unneccessary forward-declaration

Keep *ppst local to the only function which needs it any longer.

Use the frequency_table for calculating the correct ->target state