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

[John Paul Adrian Glaubitz]

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

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