Re: [PATCH v2 2/2] proc: Ensure we see the exit of each process tid exactly

[Linus Torvalds]

On Fri, Apr 24, 2020 at 11:02 AM Linus Torvalds
<torvalds@xxxxxxxxxxxxxxxxxxxx> wrote:
>
>  [..] even a "double cmpxchg" is
> actually just a double-_sized_ one, not a two different locations
> one

Historical accuracy side note: the 68020 actually had a CAS2 that was
"two different locations".

Maybe somebody else did too.

            Linus