WSL2-Linux-Kernel/arch/avr32/kernel
Serge E. Hallyn b460cbc581 pid namespaces: define is_global_init() and is_container_init()
is_init() is an ambiguous name for the pid==1 check.  Split it into
is_global_init() and is_container_init().

A cgroup init has it's tsk->pid == 1.

A global init also has it's tsk->pid == 1 and it's active pid namespace
is the init_pid_ns.  But rather than check the active pid namespace,
compare the task structure with 'init_pid_ns.child_reaper', which is
initialized during boot to the /sbin/init process and never changes.

Changelog:

	2.6.22-rc4-mm2-pidns1:
	- Use 'init_pid_ns.child_reaper' to determine if a given task is the
	  global init (/sbin/init) process. This would improve performance
	  and remove dependence on the task_pid().

	2.6.21-mm2-pidns2:

	- [Sukadev Bhattiprolu] Changed is_container_init() calls in {powerpc,
	  ppc,avr32}/traps.c for the _exception() call to is_global_init().
	  This way, we kill only the cgroup if the cgroup's init has a
	  bug rather than force a kernel panic.

[akpm@linux-foundation.org: fix comment]
[sukadev@us.ibm.com: Use is_global_init() in arch/m32r/mm/fault.c]
[bunk@stusta.de: kernel/pid.c: remove unused exports]
[sukadev@us.ibm.com: Fix capability.c to work with threaded init]
Signed-off-by: Serge E. Hallyn <serue@us.ibm.com>
Signed-off-by: Sukadev Bhattiprolu <sukadev@us.ibm.com>
Acked-by: Pavel Emelianov <xemul@openvz.org>
Cc: Eric W. Biederman <ebiederm@xmission.com>
Cc: Cedric Le Goater <clg@fr.ibm.com>
Cc: Dave Hansen <haveblue@us.ibm.com>
Cc: Herbert Poetzel <herbert@13thfloor.at>
Cc: Kirill Korotaev <dev@sw.ru>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-10-19 11:53:37 -07:00
..
Makefile [AVR32] rename vmlinux.lds 2007-10-11 12:16:56 +02:00
asm-offsets.c [PATCH] avr32 architecture 2006-09-26 08:48:54 -07:00
avr32_ksyms.c [AVR32] Export clear_page symbol 2007-01-26 13:12:25 +01:00
cpu.c [AVR32] Clean up cpu identification and add features bitmap 2007-04-27 13:44:13 +02:00
entry-avr32b.S [AVR32] Fix random segfault with preemption 2007-10-11 13:32:56 +02:00
head.S AVR32: Get rid of board_early_init 2006-11-06 10:43:23 +01:00
init_task.c [PATCH] avr32 architecture 2006-09-26 08:48:54 -07:00
irq.c [AVR32] Remove bogus comment in arch/avr32/kernel/irq.c 2007-05-13 16:05:59 +02:00
kprobes.c kprobes: support kretprobe blacklist 2007-10-16 09:43:10 -07:00
module.c [AVR32] Clean up exception handling code 2007-04-27 13:44:13 +02:00
process.c wrap access to thread_info 2007-05-09 12:30:56 -07:00
ptrace.c Consolidate PTRACE_DETACH 2007-10-16 09:42:49 -07:00
semaphore.c [PATCH] avr32 architecture 2006-09-26 08:48:54 -07:00
setup.c [AVR32] fix command line parsing in early_parse_fbmem 2007-10-11 12:16:56 +02:00
signal.c [PATCH] Add include/linux/freezer.h and move definitions from sched.h 2006-12-07 08:39:27 -08:00
switch_to.S [PATCH] avr32 architecture 2006-09-26 08:48:54 -07:00
sys_avr32.c [PATCH] AVR32: Implement kernel_execve 2006-10-02 07:57:24 -07:00
syscall-stubs.S AVR32: Wire up sys_epoll_pwait 2006-11-06 14:07:15 +01:00
syscall_table.S [AVR32] Wire up signalfd, timerfd and eventfd 2007-05-13 17:07:57 +02:00
time.c [AVR32] Change system timer from count-compare to Timer/Counter 0 2007-04-27 13:44:12 +02:00
traps.c pid namespaces: define is_global_init() and is_container_init() 2007-10-19 11:53:37 -07:00
vmlinux.lds.S [AVR32] Remove unneeded 8K alignment of .text section 2007-10-11 12:16:57 +02:00