tree 2d3f7cc6c15e03de02484f9d754a9174ce2fff76
parent fae5fa44f1fd079ffbed8e0add929dd7bbd1347f
author Oleg Nesterov <oleg@tv-sign.ru> 1209541984 -0700
committer Linus Torvalds <torvalds@linux-foundation.org> 1209569377 -0700

signals: de_thread: simplify the ->child_reaper switching

Now that we rely on SIGNAL_UNKILLABLE flag, de_thread() doesn't need the nasty
hack to kill the old ->child_reaper during the mt-exec.

This also means we can avoid taking tasklist_lock around zap_other_threads().

Signed-off-by: Oleg Nesterov <oleg@tv-sign.ru>
Cc: Roland McGrath <roland@redhat.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>