2.5.59-mjb1 (scalability / NUMA patchset)

[Martin J. Bligh]

The patchset contains mainly scalability and NUMA stuff, and anything 
else that stops things from irritating me. It's meant to be pretty stable, 
not so much a testing ground for new stuff.

I'd be very interested in feedback from anyone willing to test on any 
platform, however large or small.

http://www.aracnet.com/~fletch/linux/2.5.59/patch-2.5.59-mjb1.bz2

Since 2.5.58-mjb2 (~ = changed, + = added, - = dropped)

Notes:
Lots of good stuff merged up with Linus. x440 distcontigmem seems to have
problems in some circumstances, but APCI should work in this release.

merged with Linus:

- summit1					James Cleverdon / John Stultz
- summit2					James Cleverdon / John Stultz
- summit3					James Cleverdon / John Stultz
- summit4					James Cleverdon / John Stultz
- summit5					James Cleverdon / John Stultz
- min_numasched					Martin J. Bligh
- numasched_ilb					Michael Hohnbaum
- numa_rebalancer				Erich Focht
- vm_enough_memory				Martin J. Bligh

Other:

+ ingosched					Ingo Molar
~ sched_tunables				Robert Love
+ acpi_x440_hack				Anonymous Coward
+ numaq_ioapicids				William Lee Irwin
+ oprofile_p4					John Levon
+ starfire					Ion Badulescu

Pending:
Notsc automatic enablement (someone, please ... anyone?)
scheduler callers profiling (Anton)
PPC64 NUMA patches (Anton)
Lockless xtime structures (Andi)
Child runs first (akpm)
New qlogic driver (Badari ??)

dcache_rcu					Dipankar / Maneesh
	Use RCU type locking for the dentry cache.
 
early_printk					Dave Hansen et al.
	Allow printk before console_init

confighz					Andrew Morton / Dave Hansen
	Make HZ a config option of 100 Hz or 1000 Hz

config_page_offset				Dave Hansen / Andrea
	Make PAGE_OFFSET a config option

vmalloc_stats					Dave Hansen
	Expose useful vmalloc statistics

ingosched					Ingo Molnar
	Modify NUMA scheduler to have independant tick basis.

sched_tunables					Robert Love
	Provide tunable parameters for the scheduler (+ NUMA scheduler)

local_pgdat					William Lee Irwin
	Move the pgdat structure into the remapped space with lmem_map

notsc						Martin Bligh
	Enable notsc option for NUMA-Q (new version for new config system)

numameminfo					Martin Bligh / Keith Mannthey
	Expose NUMA meminfo information under /proc/meminfo.numa

kgdb						Andrew Morton / Various People
	The older version of kgdb, synched with 2.5.54-mm1

noframeptr					Martin Bligh
	Disable -fomit_frame_pointer

thread_info_cleanup (4K stacks pt 1)		Dave Hansen / Ben LaHaise
	Prep work to reduce kernel stacks to 4K
	
interrupt_stacks    (4K stacks pt 2)		Dave Hansen / Ben LaHaise
	Create a per-cpu interrupt stack.

stack_usage_check   (4K stacks pt 3)		Dave Hansen / Ben LaHaise
	Check for kernel stack overflows.

4k_stack            (4K stacks pt 4)		Dave Hansen
	Config option to reduce kernel stacks to 4K

mpc_apic_id					Martin J. Bligh
	Fix null ptr dereference (optimised away, but ...)

doaction					Martin J. Bligh
	Fix cruel torture of macros and small furry animals in io_apic.c

discontig_x440					Pat Gaughen / Chandra
	SLIT/SRAT parsing for x440 discontigmem

topo_hack					Pat Gaughen
	Disable some topo stuff for Summit because we're cowards.

acpi_x440_hack					Anonymous Coward
	Stops x440 crashing, but owner is ashamed of it ;-)

numaq_ioapicids					William Lee Irwin
	Stop 8 quad NUMA-Qs from panicing due to phys apicid "exhaustion".

oprofile_p4					John Levon
	Updates for oprofile for P4s. Needs new userspace tools.

starfire					Ion Badulescu
	64 bit aware starfire driver	

-mjb						Martin Bligh
	Add a tag to the makefile