• Tejun Heo's avatar
    cgroup: Call cgroup_release() before __exit_signal() · 6b115bf5
    Tejun Heo authored
    cgroup_release() calls cgroup_subsys->release() which is used by the
    pids controller to uncharge its pid.  We want to use it to manage
    iteration of dying tasks which requires putting it before
    __unhash_process().  Move cgroup_release() above __exit_signal().
    While this makes it uncharge before the pid is freed, pid is RCU freed
    anyway and the window is very narrow.
    Signed-off-by: default avatarTejun Heo <tj@kernel.org>
    Cc: Oleg Nesterov <oleg@redhat.com>
    6b115bf5
exit.c 44.4 KB