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authorOleg Nesterov2006-03-28 16:10:59 -0800
committerLinus Torvalds2006-03-28 18:36:40 -0800
commit1434261c07bcebd5ef8b8a18f919fdee533b84e0 (patch)
tree1d0ba868866354569d2b8854a26ff48dbdbc1a98 /mm
parentfef23e7fbb11a0a78cd61935f7056bc2b237995a (diff)
[PATCH] simplify exec from init's subthread
I think it is enough to take tasklist_lock for reading while changing child_reaper: Reparenting needs write_lock(tasklist_lock) Only one thread in a thread group can do exec() sighand->siglock garantees that get_signal_to_deliver() will not see a stale value of child_reaper. This means that we can change child_reaper earlier, without calling zap_other_threads() twice. "child_reaper = current" is a NOOP when init does exec from main thread, we don't care. Signed-off-by: Oleg Nesterov <oleg@tv-sign.ru> Acked-by: "Eric W. Biederman" <ebiederm@xmission.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
Diffstat (limited to 'mm')
0 files changed, 0 insertions, 0 deletions