2.5.68-mjb3

2.5.68-mjb3

[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/2.5.68/patch-2.5.68-mjb
2.bz3

additional patches that can be applied if desired:

(these two form the qlogic feral driver)
ftp://ftp.kernel.org/pub/linux/kernel/people/akpm/patches/2.5/2.5.67/2.5.67
-mm1/broken-out/linux-isp.patch
ftp://ftp.kernel.org/pub/linux/kernel/people/akpm/patches/2.5/2.5.67/2.5.67
-mm1/broken-out/isp-update-1.patch

(shared pagetables - will appear later ;-))
ftp://ftp.kernel.org/pub/linux/kernel/people/mbligh/2.5.68/shpte

Since 2.5.68-mjb2 (~ = changed, + = added, - = dropped)

Notes:

Now in Linus' tree:

New: 

+ config_irqbal					Keith Mannthey
	Make irqbalance a config option
+ fs_aio_1_retry				Suparna Bhattacharya
+ fs_aio_2_read					Suparna Bhattacharya
+ fs_aio_3_write				Suparna Bhattacharya
+ fs_aio_4_down_wq				Suparna Bhattacharya
+ fs_aio_5_wrdown_wq				Suparna Bhattacharya
+ fs_aio_6_bread_wq				Suparna Bhattacharya
+ fs_aio_7_ext2getblk_wq			Suparna Bhattacharya
+ fs_aio_8_down_wq-ppc64			Suparna Bhattacharya
+ fs_aio_9_down_wq-x86_64			Suparna Bhattacharya
	Filesytem AIO. Yes. All of them
+ pae_vmalloc					Dave Hansen
	Stop PAE mode from piddling with PGD entries from vmalloc.

Pending:
Hyperthreaded scheduler (Ingo Molnar)
scheduler callers profiling (Anton or Bill Hartner)
Child runs first (akpm)
Kexec
e1000 fixes
Update the lost timer ticks code

Present in this patch:

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

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)

node_balance					Martin J. Bligh
	Turn on node balance - it's not overagressive anymore 

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

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
	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

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

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

acenic_fix					Martin J. Bligh
	Fix warning in acenic driver

sisfix						Martin J. Bligh
	Fix warning & bug in sis900 driver

local_balance_exec				Martin J. Bligh
	Modify balance_exec to use node-local queues when idle

membind						Matt Dobson
	NUMA memory binding API

tcp_speedup					Martin J. Bligh
	Speedup TCP (avoid double copy) as suggested by Linus

early_printk_fix				Keith Mannthey
	Fix commandline parsing in early printk (yay!)

disable preempt					Martin J. Bligh
	I broke preempt somehow, temporarily disable it to stop accidents

sched_idle					Martin J. Bligh
	Call load_balance with proper idle flag (pointed out by John Hawkes)

diskstats					Rick Lindsley
	Make disk stats available in /proc so they scale to lotsa disks.

ppc64 fixes					Anton Blanchard
	Various PPC64 fixes / updates

numameminfo fix					Martin J. Bligh
	Correct /proc/meminfo.numa for zholes_size.

more_async					Andrew Morton
	Make MS_ASYNC more async

separate_pmd					Dave Hansen
	Separate kernel pmd per process

config_debug					Martin J. Bligh
	Make '-g' for the kernel a config option

akpm_bear_pit					Andrew Morton
	Add a printk for some buffer error I was hitting

32bit_dev_t					Andries Brouwer
	Make dev_t 32 bit

dynamic_hd_struct				Badari Pulavarty
	Allocate hd_structs dynamically

devfs_fixup					Badari Pulavarty ?
	Fix some random thing in devfs

iosched_hashes					Badari Pulavarty
	Twiddle with the iosched hash tables for fun & profit

lotsa_sds					Badari Pulavarty
	Create some insane number of sds

per_node_idt					Zwane Mwaikambo
	Per node IDT so we can do silly numbers of IO-APICs on NUMA-Q

banana_split					Dave Hansen
	Provide non PMD aligned splits with PAE mode (eg 3.5:0.5)

tulip_warning					Dave Hansen
	Fix silly warning in tulip driver for PAE mode

lost_tick_fix					John Stultz
	Lost tick stuff

warn_e1000					Dave Hansen
	Kill e1000 warning

pidmaps_nodepages				Dave Hansen
	Provide per-pid node mem usage info

dentry_stat_fix					Maneesh
	corrects the dentry_stat.nr_unused calculation

follow_hugetlb_page				Bill Irwin
	Fix follow_hugetlb_page() 

hugetlb_mem_enough				Bill Irwin
	fixes an overflow when there is more than 4GB of hugetlb

aio_fix						Badari Pulavarty
	Fix something in AIO

config_numasched				Dave Hansen
	Turn NUMA scheduler into a config option

lockmeter_tytso					Ted Tso
	Fix lockmeter

aiofix2						Mingming Cao
	fixed a bug in ioctx_alloc()

oom_locking					Bill Irwin / Robert Love
	Fix OOM locking

config_irqbal					Keith Mannthey
	Make irqbalance a config option

fs_aio_1_retry					Suparna Bhattacharya
	Filesystem aio. Chapter 1

fs_aio_2_read					Suparna Bhattacharya
	Filesystem aio. Chapter 2

fs_aio_3_write					Suparna Bhattacharya
	Filesystem aio. Chapter 3

fs_aio_4_down_wq				Suparna Bhattacharya
	Filesystem aio. Chapter 4

fs_aio_5_wrdown_wq				Suparna Bhattacharya
	Filesystem aio. Chapter 5

fs_aio_6_bread_wq				Suparna Bhattacharya
	Filesystem aio. Chapter 6

fs_aio_7_ext2getblk_wq				Suparna Bhattacharya
	Filesystem aio. Chapter 7

fs_aio_8_down_wq-ppc64				Suparna Bhattacharya
	Filesystem aio. Chapter 8

fs_aio_9_down_wq-x86_64				Suparna Bhattacharya
	Filesystem aio. Chapter 9

 pae_vmalloc					Dave Hansen
	Stop PAE mode from piddling with PGD entries from vmalloc.

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