Cedric Le Goater 9ec52099e4 [PATCH] replace cad_pid by a struct pid ...

There are a few places in the kernel where the init task is signaled.  The
ctrl+alt+del sequence is one them.  It kills a task, usually init, using a
cached pid (cad_pid).

This patch replaces the pid_t by a struct pid to avoid pid wrap around
problem.  The struct pid is initialized at boot time in init() and can be
modified through systctl with

	/proc/sys/kernel/cad_pid

[ I haven't found any distro using it ? ]

It also introduces a small helper routine kill_cad_pid() which is used
where it seemed ok to use cad_pid instead of pid 1.

[akpm@osdl.org: cleanups, build fix]
Signed-off-by: Cedric Le Goater <clg@fr.ibm.com>
Cc: Eric W. Biederman <ebiederm@xmission.com>
Cc: Martin Schwidefsky <schwidefsky@de.ibm.com>
Cc: Paul Mackerras <paulus@samba.org>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>

2006-10-02 07:57:25 -07:00

..

agp

[AGPGART] printk fixups.

2006-09-28 19:50:07 -04:00

drm

drm: Use register writes instead of BITBLT_MULTI packets for buffer swap blits

2006-09-22 05:32:34 +10:00

ftape

[PATCH] make more file_operation structs static

2006-07-03 15:26:59 -07:00

hw_random

[PATCH] fix Intel RNG detection

2006-09-29 09:18:09 -07:00

ip2

[PATCH] const struct tty_operations

2006-10-02 07:57:14 -07:00

ipmi

[PATCH] ipmi: don't start kipmid if the IPMI driver can use interrupts

2006-10-01 00:39:26 -07:00

mwave

[PATCH] Off-by-one in drivers/char/mwave/mwavedd.c

2006-10-01 00:39:24 -07:00

pcmcia

[PATCH] const struct tty_operations

2006-10-02 07:57:14 -07:00

rio

[PATCH] const struct tty_operations

2006-10-02 07:57:14 -07:00

tpm

Merge branch 'merge'

2006-08-01 10:37:25 +10:00

watchdog

[PATCH] OMAP: Add Watchdog driver support

2006-09-29 09:18:07 -07:00

.gitignore

…

amiserial.c

[PATCH] const struct tty_operations

2006-10-02 07:57:14 -07:00

applicom.c

[PATCH] make more file_operation structs static

2006-07-03 15:26:59 -07:00

applicom.h

…

briq_panel.c

[PATCH] briq_panel: read() and write() get __user pointers, damnit

2006-09-23 11:34:43 -07:00

cd1865.h

…

ChangeLog

…

consolemap.c

Remove obsolete #include <linux/config.h>

2006-06-30 19:25:36 +02:00

cp437.uni

…

cs5535_gpio.c

[PATCH] make more file_operation structs static

2006-07-03 15:26:59 -07:00

cyclades.c

[PATCH] const struct tty_operations

2006-10-02 07:57:14 -07:00

decserial.c

Remove obsolete #include <linux/config.h>

2006-06-30 19:25:36 +02:00

defkeymap.c_shipped

…

defkeymap.map

…

digi1.h

…

digi.h

…

digiFep1.h

…

digiPCI.h

…

ds1286.c

[PATCH] proper flags type of spin_lock_irqsave()

2006-10-01 00:39:21 -07:00

ds1302.c

[PATCH] make more file_operation structs static

2006-07-03 15:26:59 -07:00

ds1620.c

[PATCH] make more file_operation structs static

2006-07-03 15:26:59 -07:00

dsp56k.c

[PATCH] make more file_operation structs static

2006-07-03 15:26:59 -07:00

dtlk.c

[PATCH] make more file_operation structs static

2006-07-03 15:26:59 -07:00

ec3104_keyb.c

Remove obsolete #include <linux/config.h>

2006-06-30 19:25:36 +02:00

efirtc.c

[PATCH] make more file_operation structs static

2006-07-03 15:26:59 -07:00

epca.c

[PATCH] const struct tty_operations

2006-10-02 07:57:14 -07:00

epca.h

…

epcaconfig.h

…

esp.c

[PATCH] const struct tty_operations

2006-10-02 07:57:14 -07:00

generic_nvram.c

[PATCH] powerpc: Kill _machine and hard-coded platform numbers

2006-03-28 23:15:54 +11:00

generic_serial.c

[PATCH] generic_serial: remove private decoding of baud rate bits

2006-09-29 09:18:24 -07:00

genrtc.c

[PATCH] make more file_operation structs static

2006-07-03 15:26:59 -07:00

hangcheck-timer.c

[PATCH] hangcheck: remove monotomic_clock on x86

2006-06-26 09:58:20 -07:00

hpet.c

[PATCH] Don't print virtual address in HPET initialization

2006-09-26 10:52:28 +02:00

hvc_console.c

[PATCH] const struct tty_operations

2006-10-02 07:57:14 -07:00

hvc_console.h

[POWERPC] Make the hvc_console output buffer size settable

2006-07-13 18:53:32 +10:00

hvc_iseries.c

[POWERPC] Make the hvc_console output buffer size settable

2006-07-13 18:53:32 +10:00

hvc_rtas.c

[POWERPC] Make the hvc_console output buffer size settable

2006-07-13 18:53:32 +10:00

hvc_vio.c

[POWERPC] pseries: Constify & voidify get_property()

2006-07-31 15:55:04 +10:00

hvcs.c

[PATCH] const struct tty_operations

2006-10-02 07:57:14 -07:00

hvsi.c

[PATCH] const struct tty_operations

2006-10-02 07:57:14 -07:00

i8k.c

[PATCH] make more file_operation structs static

2006-07-03 15:26:59 -07:00

ip27-rtc.c

[PATCH] make more file_operation structs static

2006-07-03 15:26:59 -07:00

isicom.c

[PATCH] const struct tty_operations

2006-10-02 07:57:14 -07:00

istallion.c

[PATCH] const struct tty_operations

2006-10-02 07:57:14 -07:00

ite_gpio.c

[PATCH] make more file_operation structs static

2006-07-03 15:26:59 -07:00

Kconfig

[PATCH] BLOCK: Make it possible to disable the block layer [try #6]

2006-09-30 20:52:31 +02:00

keyboard.c

[PATCH] vt: rework the console spawning variables

2006-10-02 07:57:13 -07:00

lcd.c

[PATCH] make more file_operation structs static

2006-07-03 15:26:59 -07:00

lcd.h

…

lp.c

[PATCH] There is no devfs, there has never been a devfs, we have always been at war with...

2006-09-29 09:18:10 -07:00

Makefile

[PATCH] Remove old drivers/char/s3c2410_rtc.c

2006-09-29 09:18:13 -07:00

mbcs.c

[PATCH] MBCS: Use SEEK_{SET, CUR, END} instead of hardcoded values

2006-10-01 00:39:21 -07:00

mbcs.h

…

mem.c

[PATCH] mem driver: fix conditional on isa i/o support

2006-09-29 09:18:22 -07:00

misc.c

[PATCH] make more file_operation structs static

2006-07-03 15:26:59 -07:00

mmtimer.c

[PATCH] make more file_operation structs static

2006-07-03 15:26:59 -07:00

moxa.c

[PATCH] const struct tty_operations

2006-10-02 07:57:14 -07:00

mspec.c

[PATCH] mspec driver

2006-09-27 08:26:13 -07:00

mxser.c

[PATCH] const struct tty_operations

2006-10-02 07:57:14 -07:00

mxser.h

[PATCH] Typo fixes

2006-03-28 09:16:08 -08:00

n_hdlc.c

Remove obsolete #include <linux/config.h>

2006-06-30 19:25:36 +02:00

n_r3964.c

[PATCH] R3964: fix GFP_KERNEL allocations in timer function

2006-06-25 10:01:17 -07:00

n_tty.c

[PATCH] remove TTY_DONT_FLIP

2006-06-28 14:59:05 -07:00

nsc_gpio.c

[PATCH] gpio: cosmetics: remove needless newlines

2006-07-14 21:53:54 -07:00

nvram.c

[PATCH] make more file_operation structs static

2006-07-03 15:26:59 -07:00

nwbutton.c

[PATCH] replace cad_pid by a struct pid

2006-10-02 07:57:25 -07:00

nwbutton.h

…

nwflash.c

[PATCH] make more file_operation structs static

2006-07-03 15:26:59 -07:00

pc8736x_gpio.c

[PATCH] drivers/char/pc8736x_gpio.c: remove unused static functions

2006-09-29 09:18:05 -07:00

ppdev.c

[PATCH] make more file_operation structs static

2006-07-03 15:26:59 -07:00

pty.c

[PATCH] const struct tty_operations

2006-10-02 07:57:14 -07:00

qtronix.c

[PATCH] irq-flags: drivers/char: Use the new IRQF_ constants

2006-07-02 13:58:49 -07:00

qtronixmap.c_shipped

…

qtronixmap.map

…

random.c

[PATCH] namespaces: utsname: switch to using uts namespaces

2006-10-02 07:57:21 -07:00

raw.c

[PATCH] Streamline generic_file_* interfaces and filemap cleanups

2006-10-01 00:39:28 -07:00

riscom8_reg.h

…

riscom8.c

[PATCH] const struct tty_operations

2006-10-02 07:57:14 -07:00

riscom8.h

…

rocket_int.h

…

rocket.c

[PATCH] const struct tty_operations

2006-10-02 07:57:14 -07:00

rocket.h

…

rtc.c

[PATCH] remove unnecessary barrier in rtc_get_rtc_time

2006-09-29 09:18:05 -07:00

scan_keyb.c

…

scan_keyb.h

…

scc.h

…

scx200_gpio.c

[PATCH] scx200_gpio export cleanups

2006-09-29 09:18:06 -07:00

selection.c

[PATCH] tty locking on resize

2006-09-29 09:18:12 -07:00

ser_a2232.c

[PATCH] const struct tty_operations

2006-10-02 07:57:14 -07:00

ser_a2232.h

…

ser_a2232fw.ax

…

ser_a2232fw.h

…

serial167.c

[PATCH] const struct tty_operations

2006-10-02 07:57:14 -07:00

snsc_event.c

[PATCH] replace cad_pid by a struct pid

2006-10-02 07:57:25 -07:00

snsc.c

[IA64] add platform check to snsc driver init

2006-08-02 16:07:55 -07:00

snsc.h

…

sonypi.c

[PATCH] make more file_operation structs static

2006-07-03 15:26:59 -07:00

specialix_io8.h

…

specialix.c

[PATCH] const struct tty_operations

2006-10-02 07:57:14 -07:00

stallion.c

[PATCH] const struct tty_operations

2006-10-02 07:57:14 -07:00

sx.c

[PATCH] const struct tty_operations

2006-10-02 07:57:14 -07:00

sx.h

…

sxboards.h

…

sxwindow.h

…

synclink_gt.c

[PATCH] const struct tty_operations

2006-10-02 07:57:14 -07:00

synclink.c

[PATCH] const struct tty_operations

2006-10-02 07:57:14 -07:00

synclinkmp.c

[PATCH] const struct tty_operations

2006-10-02 07:57:14 -07:00

sysrq.c

[PATCH] sysrq: disable lockdep on reboot

2006-10-01 00:39:24 -07:00

tb0219.c

[PATCH] make more file_operation structs static

2006-07-03 15:26:59 -07:00

tipar.c

[PATCH] make more file_operation structs static

2006-07-03 15:26:59 -07:00

tlclk.c

[PATCH] make more file_operation structs static

2006-07-03 15:26:59 -07:00

toshiba.c

[PATCH] make more file_operation structs static

2006-07-03 15:26:59 -07:00

tty_io.c

[PATCH] const struct tty_operations

2006-10-02 07:57:14 -07:00

tty_ioctl.c

[PATCH] Fix locking for tty drivers when doing urgent characters

2006-09-29 09:18:24 -07:00

vc_screen.c

[PATCH] There is no devfs, there has never been a devfs, we have always been at war with...

2006-09-29 09:18:10 -07:00

viocons.c

[PATCH] const struct tty_operations

2006-10-02 07:57:14 -07:00

viotape.c

[POWERPC] iseries: Small viotape cleanup allowed by devfs removal

2006-07-13 18:56:00 +10:00

vme_scc.c

[PATCH] const struct tty_operations

2006-10-02 07:57:14 -07:00

vr41xx_giu.c

[MIPS] vr41xx: Move IRQ numbers to asm-mips/vr41xx/irq.h

2006-07-13 21:26:19 +01:00

vt_ioctl.c

[PATCH] vt: Make vt_pid a struct pid (making it pid wrap around safe).

2006-10-02 07:57:14 -07:00

vt.c

[PATCH] const struct tty_operations

2006-10-02 07:57:14 -07:00