[Devel] Re: [PATCH -mm 2/3] cgroup: simplify init_subsys()

[Paul Menage]

On Tue, Apr 1, 2008 at 7:16 PM, Li Zefan <lizf at cn.fujitsu.com> wrote:
>  -
>  -       /* If this subsystem requested that it be notified with fork
>  -        * events, we should send it one now for every process in the
>  -        * system */
>  -       if (ss->fork) {
>  -               struct task_struct *g, *p;
>  -
>  -               read_lock(&tasklist_lock);
>  -               do_each_thread(g, p) {
>  -                       ss->fork(ss, p);
>  -               } while_each_thread(g, p);
>  -               read_unlock(&tasklist_lock);
>  -       }

Should we maybe call ss->fork(ss, &init_task) ? Or just document that
ss->fork() explicitly doesn't get called for init.

Maybe also add some BUG()s to confirm that no other tasks have in fact
been forked by this point?

Paul
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