Re: [PATCH 1/8] x86: Add 1/2/4/8 byte optimization to 64bit __copy_{from,to}_user_inatomic

[Linus Torvalds]

On Tue, Aug 13, 2013 at 5:07 PM, Andi Kleen <andi@xxxxxxxxxxxxxx> wrote:
>
> 32bit already did this correctly by duplicating the code.

I wonder how much of this could be in asm/uaccess.h? We already do all
the fixed-size get_user/put_user stuff in that generic x86 code, and
I'm wondering why we don't do the "__builtin_constant_p()" cases of
copy_to/from_user() there too?

It's independent of this patch-series, but it might be good to take a
look at unifying these things..

             Linus
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