forget_original_parent: do not abuse child->ptrace_entry
commit5dfc80be73dd0c212d2e6dd8dbf5afa07e680bbe
authorOleg Nesterov <oleg@redhat.com>
Thu, 2 Apr 2009 23:58:19 +0000 (2 16:58 -0700)
committerLinus Torvalds <torvalds@linux-foundation.org>
Fri, 3 Apr 2009 02:05:00 +0000 (2 19:05 -0700)
treeac173fb3fcfe2970781591f620f22d30f4ce090c
parent39c626ae47c469abdfd30c6e42eff884931380d6
forget_original_parent: do not abuse child->ptrace_entry

By discussion with Roland.

- Use ->sibling instead of ->ptrace_entry to chain the need to be
  release_task'd childs. Nobody else can use ->sibling, this task
  is EXIT_DEAD and nobody can find it on its own list.

- rename ptrace_dead to dead_childs.

- Now that we don't have the "parallel" untrace code, change back
  reparent_thread() to return void, pass dead_childs as an argument.

Actually, I don't understand why do we notify /sbin/init when we
reparent a zombie, probably it is better to reap it unconditionally.

[akpm@linux-foundation.org: s/childs/children/]
Signed-off-by: Oleg Nesterov <oleg@redhat.com>
Cc: "Eric W. Biederman" <ebiederm@xmission.com>
Cc: "Metzger, Markus T" <markus.t.metzger@intel.com>
Cc: Roland McGrath <roland@redhat.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
kernel/exit.c