2.5.65-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.

ftp://ftp.kernel.org/pub/linux/kernel/people/mbligh/2.5.65/patch-2.5.65-mjb1.bz2

additional:

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

Since 2.5.64-mjb5 (~ = changed, + = added, - = dropped)

Notes:  just a sync with 2.5.65 (dispose of -bk snapshot). Very, very boring.

Now in Linus' tree:

New:

Pending:
Hyperthreaded scheduler (Ingo Molnar)
objrmap bugfixes for nonlinear vma's (Dave McCracken)
Seperate kernel PMDs per process (Dave Hansen)
Non-PAE aligned kernel splits (Dave Hansen)
scheduler callers profiling (Anton or Bill Hartner)
PPC64 NUMA patches (Anton)
Child runs first (akpm)
Kexec
e1000 fixes
Update the lost timer ticks code

Present in this patch:

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

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

kprobes						Vamsi Krishna S
	Add kernel probes hooks to the kernel

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

get_empty_filp					Manfred Spraul
	Kill the lock contention on files_lock from get_empty_filp ...

files_lock_goodness				Andrew Morton
	... and drive a silver stake through it's heart.

spinlock_inlining				Andrew Morton
	Inline spinlocks for profiling. Made into a ugly config option by me.

summit_pcimap					Matt Dobson
	Provide pci bus -> node mapping for x440

shpte						Dave McCracken
	Shared pagetables

reiserfs_dio					Mingming Cao
	DIO for Reiserfs

concurrent_balloc				Alex Tomas
	Concurrent ext2 block allocation - makes SDET & dbench go whizzy fast.

concurrent_inode				Alex Tomas
	Concurrent ext2 inode allocation - makes SDET & dbench go whizzy fast.

debkl_ext2_readdir				Alex Tomas
	Don't take the BKL in ext2_readdir

sched_interactive				Ingo Molnar
	Bugfix for interactive scheduler

kgdb_cleanup					Martin J. Bligh
	Stop kgdb renaming schedule to do_schedule when it's not even enabled

numa_protector					Martin J. Bligh / Dave Hansen
	Stop people shooting themselves in the foot with CONFIG_NUMA

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