Yinghai Lu 0b8f1efad3 sparse irq_desc[] array: core kernel and x86 changes ...

Impact: new feature

Problem on distro kernels: irq_desc[NR_IRQS] takes megabytes of RAM with
NR_CPUS set to large values. The goal is to be able to scale up to much
larger NR_IRQS value without impacting the (important) common case.

To solve this, we generalize irq_desc[NR_IRQS] to an (optional) array of
irq_desc pointers.

When CONFIG_SPARSE_IRQ=y is used, we use kzalloc_node to get irq_desc,
this also makes the IRQ descriptors NUMA-local (to the site that calls
request_irq()).

This gets rid of the irq_cfg[] static array on x86 as well: irq_cfg now
uses desc->chip_data for x86 to store irq_cfg.

Signed-off-by: Yinghai Lu <yinghai@kernel.org>
Signed-off-by: Ingo Molnar <mingo@elte.hu>

2008-12-08 14:31:51 +01:00

..

agp

uninorth-agp section mess

2008-11-30 10:03:37 -08:00

hw_random

Tidy up addresses in random drivers

2008-10-27 08:39:52 -07:00

ip2

device create: char: convert device_create_drvdata to device_create

2008-10-16 09:24:42 -07:00

ipmi

Fix platform drivers that crash on suspend/resume

2008-11-12 17:17:16 -08:00

mwave

mwave: ioctl BKL pushdown

2008-07-25 10:53:43 -07:00

pcmcia

pcmcia: IRQ_TYPE_EXCLUSIVE is long obsoleted

2008-10-17 23:07:10 +02:00

rio

rio: push down the BKL into the firmware ioctl handler

2008-07-25 10:53:43 -07:00

tpm

tpm: don't export static functions

2008-10-20 08:50:24 -07:00

xilinx_hwicap

powerpc/virtex: fix various format/casting printk mismatches

2008-11-14 09:59:48 -07:00

.gitignore

…

amiserial.c

m68k: Disable Amiga serial console support if modular

2008-10-26 12:11:21 -07:00

apm-emulation.c

APM emulation: Notify about all suspend events, not just APM invoked ones (v2)

2008-07-16 23:27:02 +02:00

applicom.c

applicom.c: fix apparently-broken code in do_ac_read()

2008-10-16 11:21:47 -07:00

applicom.h

…

bfin-otp.c

Blackfin char driver for Blackfin on-chip OTP memory (v3)

2008-04-25 08:04:56 +08:00

briq_panel.c

briq_panel: BKL pushdown

2008-06-20 14:05:55 -06:00

bsr.c

device create: char: convert device_create_drvdata to device_create

2008-10-16 09:24:42 -07:00

cd1865.h

…

ChangeLog

…

consolemap.c

Basic braille screen reader support

2008-04-30 08:29:52 -07:00

cp437.uni

…

cs5535_gpio.c

Add a bunch of cycle_kernel_lock() calls

2008-06-20 14:05:53 -06:00

cyclades.c

Char: cyclades. remove bogus iomap

2008-10-13 09:51:38 -07:00

defkeymap.c_shipped

Fix default compose table initialization

2008-03-03 14:53:16 -08:00

defkeymap.map

…

digi1.h

…

digiFep1.h

…

digiPCI.h

…

ds1302.c

rtc: use bcd2bin/bin2bcd

2008-10-20 08:52:41 -07:00

ds1620.c

[ARM] Move include/asm-arm/arch-* to arch/arm/*/include/mach

2008-08-07 09:55:48 +01:00

dsp56k.c

device create: char: convert device_create_drvdata to device_create

2008-10-16 09:24:42 -07:00

dtlk.c

Add a bunch of cycle_kernel_lock() calls

2008-06-20 14:05:53 -06:00

efirtc.c

drivers/char/efirtc.c: removed duplicated #include

2008-08-04 16:59:56 -07:00

epca.c

epca: Add infinite break support

2008-10-20 09:41:06 -07:00

epca.h

epca: use tty_port

2008-07-20 17:12:36 -07:00

epcaconfig.h

…

esp.c

tty: rework break handling

2008-07-22 13:03:28 -07:00

generic_nvram.c

driver/char/generic_nvram: fix banner

2008-06-12 18:05:41 -07:00

generic_serial.c

tty: Remove lots of NULL checks

2008-10-13 09:51:44 -07:00

genrtc.c

genrtc: BKL pushdown

2008-06-20 14:05:57 -06:00

hangcheck-timer.c

drivers/char/: Spelling fixes

2008-02-03 17:11:42 +02:00

hpet.c

saner FASYNC handling on file close

2008-11-01 09:49:46 -07:00

hvc_beat.c

[POWERPC] hvcbeat: Fix buffer manipulation

2008-04-17 07:46:10 +10:00

hvc_console.c

hvc_console: Remove __devexit annotation of hvc_remove()

2008-10-22 11:00:25 +11:00

hvc_console.h

hvc_console: Remove __devexit annotation of hvc_remove()

2008-10-22 11:00:25 +11:00

hvc_irq.c

hvc_console: Add a hangup notifier for backends

2008-10-22 10:59:54 +11:00

hvc_iseries.c

hvc_console: Add a hangup notifier for backends

2008-10-22 10:59:54 +11:00

hvc_rtas.c

[POWERPC] hvc_rtas_init() must be __init

2008-02-14 22:11:02 +11:00

hvc_vio.c

hvc_console: Add a hangup notifier for backends

2008-10-22 10:59:54 +11:00

hvc_xen.c

hvc_console: Add a hangup notifier for backends

2008-10-22 10:59:54 +11:00

hvcs.c

powerpc: Move include files to arch/powerpc/include/asm

2008-08-04 12:02:00 +10:00

hvsi.c

drivers/char: replace remaining __FUNCTION__ occurrences

2008-04-30 08:29:54 -07:00

i8k.c

i8k: make fan multiplier tunable with a module parameter

2008-05-01 08:04:00 -07:00

isicom.c

tty: trivial - fix up email addresses in tty related stuff

2008-11-11 09:30:10 -08:00

istallion.c

istallion section warnings

2008-11-30 10:03:36 -08:00

Kconfig

Create/use more directory structure in the Documentation/ tree.

2008-11-14 17:28:53 +00:00

keyboard.c

Input: keyboard - fix potential out of bound access to key_map

2008-10-08 23:45:36 -04:00

lp.c

device create: char: convert device_create_drvdata to device_create

2008-10-16 09:24:42 -07:00

Makefile

CHAR: Delete old and now unused M48T35 RTC driver for SGI IP27.

2008-10-30 14:44:35 +00:00

mbcs.c

mbcs: cdev lock_kernel() pushdown

2008-06-20 14:05:48 -06:00

mbcs.h

MBCS: convert dmareadlock to mutex

2008-02-07 08:42:25 -08:00

mem.c

device create: char: convert device_create_drvdata to device_create

2008-10-16 09:24:42 -07:00

misc.c

device create: char: convert device_create_drvdata to device_create

2008-10-16 09:24:42 -07:00

mmtimer.c

mmtimer: Push BKL down into the ioctl handler

2008-07-17 11:34:49 -07:00

moxa.c

char: moxa.c sparse annotation

2008-10-16 11:21:47 -07:00

moxa.h

Char: moxa, cleanup rx/tx

2008-04-30 08:29:43 -07:00

mspec.c

mspec: convert nopfn to fault

2008-07-24 10:47:14 -07:00

mxser.c

tty: trivial - fix up email addresses in tty related stuff

2008-11-11 09:30:10 -08:00

mxser.h

mxser: convert large macros to functions

2008-04-30 08:29:49 -07:00

n_hdlc.c

tty: some ICANON magic is in the wrong places

2008-10-13 09:51:44 -07:00

n_r3964.c

tty: Remove lots of NULL checks

2008-10-13 09:51:44 -07:00

n_tty.c

tty: rename the remaining oddly named n_tty functions

2008-10-13 09:51:45 -07:00

nozomi.c

nozomi: Fix close on error

2008-10-13 09:51:39 -07:00

nsc_gpio.c

…

nvram.c

[PATCH] introduce fmode_t, do annotations

2008-10-21 07:47:06 -04:00

nwbutton.c

…

nwbutton.h

…

nwflash.c

[ARM] fix nwflash.c: 6ee8928d94841aa764aeaf645ad16daff811dc26

2008-07-26 16:29:24 +01:00

pc8736x_gpio.c

pc8736x_gpio: add support for PC87365 chips

2008-10-20 08:52:40 -07:00

ppdev.c

device create: char: convert device_create_drvdata to device_create

2008-10-16 09:24:42 -07:00

ps3flash.c

ps3: FLASH ROM Storage Driver

2007-07-21 17:49:16 -07:00

pty.c

pty: simplify unix98 allocation

2008-10-13 09:51:44 -07:00

random.c

sparse irq_desc[] array: core kernel and x86 changes

2008-12-08 14:31:51 +01:00

raw.c

[PATCH] kill the rest of struct file propagation in block ioctls

2008-10-21 07:49:14 -04:00

riscom8_reg.h

…

riscom8.c

riscom8: Restore driver using new break functionality

2008-07-22 13:03:28 -07:00

riscom8.h

tty: add more tty_port fields

2008-07-20 17:12:38 -07:00

rocket_int.h

tty: add more tty_port fields

2008-07-20 17:12:38 -07:00

rocket.c

tty: rework break handling

2008-07-22 13:03:28 -07:00

rocket.h

tty: add more tty_port fields

2008-07-20 17:12:38 -07:00

rtc.c

saner FASYNC handling on file close

2008-11-01 09:49:46 -07:00

scc.h

…

scx200_gpio.c

Add a bunch of cycle_kernel_lock() calls

2008-06-20 14:05:53 -06:00

selection.c

tty: Ldisc revamp

2008-07-20 17:12:34 -07:00

ser_a2232.c

m68k: gs: use tty_port fixes

2008-07-26 20:29:03 -07:00

ser_a2232.h

…

ser_a2232fw.ax

…

ser_a2232fw.h

…

serial167.c

Fix incorrect use of loose in tty/serial drivers

2008-12-05 13:40:52 -08:00

snsc_event.c

byteorder: don't directly include linux/byteorder/generic.h

2008-05-16 12:01:45 -07:00

snsc.c

device create: char: convert device_create_drvdata to device_create

2008-10-16 09:24:42 -07:00

snsc.h

Convert asm/semaphore.h users to linux/semaphore.h

2008-04-18 22:22:54 -04:00

sonypi.c

Merge branch 'misc' into release

2008-11-11 21:14:11 -05:00

specialix_io8.h

tty: add more tty_port fields

2008-07-20 17:12:38 -07:00

specialix.c

Create/use more directory structure in the Documentation/ tree.

2008-11-14 17:28:53 +00:00

stallion.c

device create: char: convert device_create_drvdata to device_create

2008-10-16 09:24:42 -07:00

sx.c

Char: sx, remove bogus iomap

2008-10-20 08:52:36 -07:00

sx.h

Char: char/serial, remove SERIAL_TYPE_NORMAL redefines

2008-02-07 08:42:33 -08:00

sxboards.h

…

sxwindow.h

…

synclink_gt.c

removed unused #include <version.h>

2008-08-16 17:21:58 -07:00

synclink.c

Merge branch 'for-jeff' of git://git.kernel.org/pub/scm/linux/kernel/git/chris/linux-2.6 into tmp

2008-08-07 04:05:46 -04:00

synclinkmp.c

Merge branch 'for-jeff' of git://git.kernel.org/pub/scm/linux/kernel/git/chris/linux-2.6 into tmp

2008-08-07 04:05:46 -04:00

sysrq.c

Fix documentation of sysrq-q

2008-10-20 08:52:34 -07:00

tb0219.c

Add a bunch of cycle_kernel_lock() calls

2008-06-20 14:05:53 -06:00

tlclk.c

tlckl: BKL pushdown

2008-06-20 14:05:51 -06:00

toshiba.c

toshiba: use ioremap_cached

2008-04-30 23:15:34 +02:00

tty_audit.c

audit: Handle embedded NUL in TTY input auditing

2008-10-13 09:51:39 -07:00

tty_buffer.c

tty: split the buffering from tty_io

2008-10-13 09:51:40 -07:00

tty_io.c

drivers/char/tty_io.c: Avoid panic when no console is configured.

2008-12-01 08:19:10 -08:00

tty_ioctl.c

tty: some ICANON magic is in the wrong places

2008-10-13 09:51:44 -07:00

tty_ldisc.c

try harder to load tty ldisc driver

2008-08-01 12:50:15 -07:00

tty_port.c

tty: Fix tty_port kref screwup

2008-10-23 09:20:53 -07:00

vc_screen.c

device create: char: convert device_create_drvdata to device_create

2008-10-16 09:24:42 -07:00

viotape.c

device create: char: convert device_create_drvdata to device_create

2008-10-16 09:24:42 -07:00

virtio_console.c

hvc_console: Add a hangup notifier for backends

2008-10-22 10:59:54 +11:00

vme_scc.c

m68k: gs: use tty_port fixes

2008-07-26 20:29:03 -07:00

vr41xx_giu.c

drivers/char: use nr_irqs

2008-10-16 16:52:05 +02:00

vt_ioctl.c

tty: move tioclinux from a special case

2008-10-13 09:51:40 -07:00

vt.c

vt: incomplete initialization of vc_tab_stop

2008-11-06 15:41:17 -08:00