Re: [PATCH 1/2] locking/lockref: Use try_cmpxchg64 in CMPXCHG_LOOP macro

[Linus Torvalds]

On Wed, May 25, 2022 at 9:47 AM Linus Torvalds
<torvalds@xxxxxxxxxxxxxxxxxxxx> wrote:
>
> Ack on this one regardless of the 32-bit x86 question.

.. and with confirmation from Michael and Mark (and the analysis from
Uros on the fallback code), I've applied this to my tree.

NOTE!

I have *not* applied the second patch with the x86-32 change to enable
this on 32-bit with CMPXCHG8B enabled. I think that's independent, and
will leave it up to the x86 maintainers.  Plus I think the patch
should be simplified.

             Linus