On Sun, Sep 10, 2023 at 04:28:54AM -0400, guo...@kernel.org wrote:

> Changlog:
> V11:
>  - Based on Leonardo Bras's cmpxchg_small patches v5.
>  - Based on Guo Ren's Optimize arch_spin_value_unlocked patch v3.
>  - Remove abusing alternative framework and use jump_label instead.

btw, I didn't say that using alternatives was the problem, it was
abusing the errata framework to perform feature detection that I had
a problem with. That's not changed in v11.

A stronger forward progress guarantee is not an erratum, AFAICT.

>  - Introduce prefetch.w to improve T-HEAD processors' LR/SC forward progress
>    guarantee.
>  - Optimize qspinlock xchg_tail when NR_CPUS >= 16K.

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