Re: [Xen-devel] [PATCH] xen/x86: Improve hypercall page writing

[Boris Ostrovsky <boris.ostrovsky@xxxxxxxxxx>]

On 12/19/2016 11:55 AM, Andrew Cooper wrote:
> Use memcpy() rather than individual writes with explicit casts.  The
> __builtin_memcpy() wrapper does a better job at combining adjacent writes into
> a larger word size.
>
> This results in better generated assembly.  No functional change.
>
> Signed-off-by: Andrew Cooper <andrew.cooper3@xxxxxxxxxx>

Reviewed-by: Boris Ostrovsky <boris.ostrovsky@xxxxxxxxxx>


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