Re: [RFC] [PATCH 1/2] cgroups: read-write lock CLONE_THREAD forking per threadgroup

On Mon, Mar 22, 2010 at 3:22 AM, Oleg Nesterov <oleg@...> wrote:
>
> Please use ->signal instead. By the lucky coincidence the lifetime rules
> for (greatly misnamed) signal_struct were changed recently in -mm.
>
> With the recent changes, it is always safe to use task->signal. It can't
> be changed, can't go away, no need to bump the counter, no races, etc.
>
> What do you think?

If signal_struct is much simpler to reason about, then using it seems
like a good idea.

Paul