Re: [PATCH RFC 1/3] fpu/x86: add make_fpregs_active(_newstate) helper functions

[Andy Lutomirski]

On Mon, Oct 17, 2016 at 4:45 PM, Yu-cheng Yu <yu-cheng.yu@xxxxxxxxx> wrote:
> On Mon, Oct 17, 2016 at 04:30:47PM -0700, Andy Lutomirski wrote:
>> Rik wants to add a different form of FPU laziness, and it would be
>> simpler if we could just always copy from a kernel buffer.  Does code
>> to do that exist in the tree?
>
> If we know fpregs are not active at the time of the copy and compacted format
> is the concern, can we use copyout_from_xsaves() in xstate.c?
>

Right, that.  Rik, that could be an alternative solution.

--Andy