Re: [GIT PULL] Add two-byte cmpxchg emulation function for v7.4

[Bradley Morgan <brads@mainlining.org>]

On 20 October 2026 20:21:31 BST, "Paul E. McKenney" <paulmck@kernel.org>
wrote:
>On Tue, Oct 20, 2026 at 07:54:38PM +0100, Bradley Morgan wrote:
>> On 20 October 2026 19:48:32 BST, John Paul Adrian Glaubitz
>> <glaubitz@physik.fu-berlin.de> wrote:
>> >Hi Paul,
>> >
>> >On Fri, 2026-10-16 at 20:51 -0700, Paul E. McKenney wrote:
>> >> However, it sadly does not permit easy implementation of all
>algorithms
>> >> needing on two-byte atomic operations because there are some systems
>> >still
>> >> supported by Linux that do not have native two-byte store
>instructions.
>> >> There is reason to believe that these systems will soon no longer be
>> >> supported by Linux.
>> >
>> >Since this paragraph has produced a headline today [1], would you mind
>> >clarifying what you meant here? What architectures are you talking
>about?
>> >
>> >Thanks,
>> >Adrian
>> >
>> >> [1] https://www.phoronix.com/news/Linux-7.4-Two-Byte-CMPXCHG
>> 
>> Annoyingly my name isn't on there :(
>
>But your name is prominently mentioned in the pull request linked to by
>the
>article.

I bet they saw Bradley Morgan and went, ^W^W^W^W^W^W^W^W^Wmeh, Paul is more
famous
let's
involve him and not the guy who made the patches^W^W^W^W^W^W^W^W^W^W

>
>> But I'm happy it IS a headline :)
>
>Me, I am a bit surprised that this made Phoronix, especially given that
>Linus hasn't pulled it yet.  Perhaps there is someone out there who,
>like a number of the commenters, got confused and read "architecture"
>when both the article and the pull request said "system".  ;-)

Me personally I got a notification on my phone, they tend to talk about
arch "improvements" anyway. I like pheronix.

>
>							Thanx, Paul

--- Thanks!
https://lore.kernel.org/all/EE579805-42F2-4C58-B752-F28779EEB717@grrlz.net/