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SubjectRe: [patch V2 00/18] mm/highmem: Preemptible variant of kmap_atomic & friends

> There are also some users on 10+ year old 32-bit netbooks or
> business laptops, both x86 and Apple G4.
> The longest-lived 32-bit embedded systems with large memory
> (other than Arm) are probably NXP QorIQ P20xx/P40xx used in
> military VME bus systems, and low-end embedded systems based
> on Vortex86.
> I'm less worried about all of these because upstream kernel
> support for ppc32 and x86-32 is already bitrotting and they will
> likely get stuck on the last working kernel before the
> TI/Renesas/NXP Arm systems do.
>

Upstream kernel support for ppc32 is bitrotting, seriously ? What do
you mean exactly ?

ppc32 is actively supported, with recent addition of support of
hugepages, kasan, uaccess protection, VMAP stack, etc ...

Christophe


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