[PATCH v2 06/20] x86/alternative: use temporary mm for text poking

[Borislav Petkov]

On Tue, Feb 05, 2019 at 12:31:46PM +0100, Peter Zijlstra wrote:
> ...
>
> So while in general I agree with BUG_ON() being undesirable, I think
> liberal sprinking in text_poke() is fine; you really _REALLY_ want this
> to work or fail loudly. Text corruption is just painful.

Ok. It would be good to have the gist of this sentiment in a comment
above it so that it is absolutely clear why we're doing it.

And since text_poke() can't fail, then it doesn't need a retval too.
AFAICT, nothing is actually using it.

-- 
Regards/Gruss,
    Boris.

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