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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>		17 years ago
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alpha	pid namespaces: define is_global_init() and is_container_init()	17 years ago
arm	pid namespaces: define is_global_init() and is_container_init()	17 years ago
avr32	pid namespaces: define is_global_init() and is_container_init()	17 years ago
blackfin	PM: Rework struct platform_suspend_ops	17 years ago
cris	remove include/asm-*/ipc.h	17 years ago
frv	remove include/asm-*/ipc.h	17 years ago
h8300	remove include/asm-*/ipc.h	17 years ago
i386	.gitignore update for x86 arch	17 years ago
ia64	pid namespaces: define is_global_init() and is_container_init()	17 years ago
m32r	pid namespaces: define is_global_init() and is_container_init()	17 years ago
m68k	pid namespaces: define is_global_init() and is_container_init()	17 years ago
m68knommu	remove include/asm-*/ipc.h	17 years ago
mips	pid namespaces: define is_global_init() and is_container_init()	17 years ago
parisc	Merge git://git.kernel.org/pub/scm/linux/kernel/git/sam/kbuild	17 years ago
powerpc	pid namespaces: define is_global_init() and is_container_init()	17 years ago
ppc	pid namespaces: define is_global_init() and is_container_init()	17 years ago
s390	pid namespaces: define is_global_init() and is_container_init()	17 years ago
sh	pid namespaces: define is_global_init() and is_container_init()	17 years ago
sh64	pid namespaces: define is_global_init() and is_container_init()	17 years ago
sparc	[SPARC/64]: Consolidate of_register_driver	17 years ago
sparc64	pid namespaces: round up the API	17 years ago
um	pid namespaces: define is_global_init() and is_container_init()	17 years ago
v850	remove include/asm-*/ipc.h	17 years ago
x86	pid namespaces: define is_global_init() and is_container_init()	17 years ago
x86_64	Hibernation: Arbitrary boot kernel support on x86_64	17 years ago
xtensa	pid namespaces: define is_global_init() and is_container_init()	17 years ago