into nuts.ninka.net:/home/davem/src/BK/net-2.5

I'm getting a lot of cacheline bounce from .text.lock.file_table due to
false sharing of the cahceline. The following patch just aligns the lock
in it's own cacheline.

People keep asking for this info, and Andrew asked me to put it under the
Documentation directory ... provides really simple instructions for taking
a profile so that users can report performance changes in a useful way.

From Andy Whitcroft

Fix the type of get_zholes_size for NUMA-Q

From Andy Whitcroft

Convert physnode_map from an int to a u8 to save cachelines.

From Andy Whitcroft

A few very simple changes in order to make CONFIG_NUMA work everywhere, so
the distros can build one common binary kernel for distributions.

From Andy Whitcroft

Share a common physnode_map structure between NUMA-Q and Summit.

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

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

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

into kernel.bkbits.net:/home/davem/sparc-2.5

This is a minor cleanup.  We currently define and declare the BKL's
kernel_flag spinlock on either SMP or PREEMPT, which means a UP+PREEMPT
machine gets it.

We only need the actual lock on SMP.

into tp1.ruhr-uni-bochum.de:/scratch/kai/kernel/v2.5/linux-2.5.isdn

into nuts.ninka.net:/home/davem/src/BK/sparc-2.5

into penguin.transmeta.com:/home/penguin/torvalds/repositories/kernel/linux

This also shows how to add files to the initramfs build, but is 
commented out.

Patch originally done by Kai.

into penguin.transmeta.com:/home/penguin/torvalds/repositories/kernel/linux

Fix oops in getdfs when null path passed in on mount.  Fix oops when changed readsize caused readpages problem.  Add support for altering rsize so can reduce pages read across net
below default of 4

This fixes the SMP runqueue locking bug when updating the wakers
priority.  It also includes:

 - only update the priority and do a requeueing if the sleep average has
   changed. (this does not happen for pure CPU hogs or pure interactive
   tasks, so no need to requeue/recalc-prio in that case.) [All the
   necessary values are available at that point already, so gcc should
   have an easy job making this branch really cheap.]

 - do not do a full task activation in the migration-thread path - that is
   supposed to be near-atomic anyway.

 - fix up comments

I solved the SMP locking bug by moving the requeueing outside of
try_to_wake_up().  It does not matter that the priority update is not
atomically done now, since the current process wont do anything
inbetween.  (well, it could get preempted in a preemptible kernel, but
even that wont do any harm.)