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Re: [PATCH RFC rebase 2/9] powerpc: Use barrier_nospec in copy_fro ...

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Linus Torvalds writes: (Summary) On Thu, Mar 15, 2018 at 12:15 PM, Michal Suchanek <msuchanek@suse.de> wrote:

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__gu_err; \ Is the above really correct? The barrier is *before* the conditional branch that might be mis-predicted.
branch that might be mis-predicted.
I don't know how the ppc barrier works, but that sounds completely bogus. I don't know how the ppc barrier works, but that sounds completely bogus. Linus
Linus
Linus

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