Re: [PATCH v4 6/8] x86: bump ZO_z_extra_bytes margin for zstd

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On Thu, Apr 02, 2020 at 08:25:49PM +0000, Nick Terrell wrote:
> So it is possible that there is a use case for kernel compression that
> I’m not aware of where RAM is extremely tight and within 64 KB of
> the current limits.

That's exactly my concern, albeit a very minor one.

> It seems to me that adding 64KB to the memory requirement for kernel
> decompression is not going to break anyone. If it did the kernel image
> is taking up nearly all available RAM, which doesn’t seem likely.
> But, I don’t know all use cases. If it does break someone, we can
> put up a separate patch that switches all the compression methods over
> a per-method ZO_z_extra_bytes.

Ok.

Thx.

-- 
Regards/Gruss,
    Boris.

https://people.kernel.org/tglx/notes-about-netiquette



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