Re: [PATCH RFC 1/3] fpu/x86: add make_fpregs_active(_newstate) helper functions
From: Yu-cheng Yu
Date: Mon Oct 17 2016 - 19:47:29 EST
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?
Yu-cheng