Messages in this thread | | | Date | Wed, 5 Apr 2017 20:11:03 +0200 | From | Oleg Nesterov <> | Subject | Re: [RFC][PATCH v2 3/5] clone: Disallown CLONE_THREAD with a shared sighand_struct |
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On 04/05, Eric W. Biederman wrote: > > Oleg Nesterov <oleg@redhat.com> writes: > > I agree that changing userspace semantics is something to be very > careful with. But at least for purposes of discussion I think this is a > good patch.
I agree that we need it with your approach,
but imo it would be much better to not depend on the subtle changes like this. My 2/2 or your 1/5 are already bad enough.
> I can avoid this change but it requires moving sighand->siglock > into signal_struct and introducing a new spinlock into sighand_struct > to just guard the signal handlers.
Oh, this looks much, much worse to me.
Oleg.
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