linux/arch/mips/sgi-ip22
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
..
Makefile [MIPS] Rewrite all the assembler interrupt handlers to C. 2006-04-19 04:14:21 +02:00
ip22-berr.c Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
ip22-eisa.c [MIPS] Eleminate interrupt migration helper use. 2006-07-13 21:25:58 +01:00
ip22-hpc.c [PATCH] mips: nuke trailing whitespace 2005-09-05 00:06:07 -07:00
ip22-int.c [MIPS] Eleminate interrupt migration helper use. 2006-07-13 21:25:58 +01:00
ip22-mc.c Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
ip22-nvram.c [PATCH] mips: nuke trailing whitespace 2005-09-05 00:06:07 -07:00
ip22-reset.c [PATCH] replace cad_pid by a struct pid 2006-10-02 07:57:25 -07:00
ip22-setup.c Remove obsolete #include <linux/config.h> 2006-06-30 19:25:36 +02:00
ip22-time.c [MIPS] IP22 Fix brown paper bag in RTC code. 2006-07-13 21:26:18 +01:00