2.5.64-mjb2 (scalability / NUMA patchset)

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.

NOTE - you will have to apply -bk3 before applying this release.
ftp://ftp.kernel.org/pub/linux/kernel/v2.5/snapshots/patch-2.5.64-bk3.bz2
ftp://ftp.kernel.org/pub/linux/kernel/people/mbligh/2.5.64/patch-2.5.64-bk3-mjb2.bz2

additional:

http://www.aracnet.com/~fletch/linux/2.5.59/pidmaps_nodepages

Since 2.5.64-mjb1 (~ = changed, + = added, - = dropped)

Notes:  This is just a merge up on top of the cool new scheduler stuff.

Merged with Linus:

- nfs_fix						Trond Myklebust
~ sched_tunables					Robert Love

New:


Pending:
scheduler callers profiling (Anton)
PPC64 NUMA patches (Anton)
Child runs first (akpm)
Kexec
e1000 fixes
Non-PAE aligned kernel splits (Dave Hansen)
Update the lost timer ticks code
Ingo scheduler updates

Present in this patch:

common_physmap					Andy Whitcroft
	merge physnode_map implementations from numaq and summit

pfn_to_nid_inline				Andy Whitcroft
	converts the pfn_to_nid macro into an inline

numa_x86_pc					Andy Whitcroft
	adds basic numa support for flat systems

physnode_map_u8					Andy Whitcroft
	converts physnode_map array to u8 (save cache polution)

profiling_docs					Martin J. Bligh
	Basic profiling docs

align_files_lock				Martin J. Bligh
	Cacheline align files_lock

pfn_valid					Andy Whitcroft
	fixes up a bug in copy_page_range

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

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

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

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

schedstat					Rick Lindsley
	Provide stats about the scheduler under /proc/schedstat

schedstat2					Rick Lindsley
	Provide more stats about the scheduler under /proc/schedstat

schedstat-scripts				Rick Lindsley
	Provide some scripts for schedstat analysis under scripts/

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

irq_affinity					Martin J. Bligh
	Workaround for irq_affinity on clustered apic mode systems (eg x440)

cleaner_inodes					Andrew Morton
	Make noatime filesystems more efficient

partial_objrmap					Dave McCracken
	Object based rmap for filebacked pages.

objrmap_fix					Dave McCracken
	Fix detection of anon pages

objrmap_fixes					Dave McCracken / Hugh Dickins
	Fix up some mapped sizing bugs in objrmap

objrmap_mapcount				Dave McCracken
	Fix up some mapped sizing bugs in objrmap

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

noframeptr					Martin Bligh
	Disable -fomit_frame_pointer

kprobes						Vamsi Krishna S
	Add kernel probes hooks to the kernel

# dmc_exit					Dave McCracken
	Speed up the exit path.

# shpte						Dave McCracken
	Shared pagetables (as a config option)

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

fix_kgdb					Dave Hansen
	Fix interaction between kgdb and 4K stacks

stacks_from_slab				William Lee Irwin
	Take kernel stacks from the slab cache, not page allocation.

thread_under_page				William Lee Irwin
	Fix THREAD_SIZE < PAGE_SIZE case

lkcd						LKCD team
	Linux kernel crash dump support

percpu_loadavg					Martin J. Bligh
	Provide per-cpu loadaverages, and real load averages

-mjb						Martin J. Bligh
	Add a tag to the makefile

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