On Wed, 16 Sep 2015, Dave Hansen wrote:
>
> This adds the raw instructions to access PKRU as well as some
> accessor functions that correctly handle when the CPU does
> not support the instruction. We don't use them here, but
> we will use read_pkru() in the next patch.
>
> I do not see an immediate use for write_pkru(). But, we put it
> here for partity with its twin.
So that read_pkru() doesn't feel so lonely? I can't follow that logic.
Thanks,
tglx
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