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Re: [PATCH RFC 2/5] x86,fpu: delay FPU register loading until switch to userspace

From Rik van Riel <riel@redhat.com>
Newsgroups linux.kernel
Subject Re: [PATCH RFC 2/5] x86,fpu: delay FPU register loading until switch to userspace
Date 2016-10-04 14:50 +0200
Message-ID <soxkt-2M1-7@gated-at.bofh.it> (permalink)
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On Tue, 2016-10-04 at 08:35 +0200, Ingo Molnar wrote:
> * Andy Lutomirski <luto@amacapital.net> wrote:
> 
> > > We can get rid of fpu.counter, since nobody uses it
> > > any more.
> > 
> > We should definitely do this.
> > 
> > Maybe getting in some cleanups first (my lazy fpu deletion,
> > fpu.counter removal, etc) first is the way to go.
> 
> Could you guys please submit all pending FPU bits that aren't new
> functionality to -tip? I'll remove lazy FPU handling if you don't
> beat me to it.
> 
> Plus after lazy FPU removal we should take another good look and
> make the FPU state machine even more obvious and self-documenting.
> 
> Upstream merge commit 597f03f9d133 would be a good base.

I am flying out to Europe tomorrow, but will try to get
you the cleanups some time this week.  Besides the first
four patcehs from Andy, there is a shortlist of a few
more small changes.

-- 
All Rights Reversed.

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Thread

[PATCH RFC 2/5] x86,fpu: delay FPU register loading until switch to userspace riel@redhat.com - 2016-10-01 23:00 +0200
  Re: [PATCH RFC 2/5] x86,fpu: delay FPU register loading until switch  to userspace Andy Lutomirski <luto@amacapital.net> - 2016-10-02 01:50 +0200
    Re: [PATCH RFC 2/5] x86,fpu: delay FPU register loading until  switch to userspace Rik van Riel <riel@redhat.com> - 2016-10-02 02:10 +0200
      Re: [PATCH RFC 2/5] x86,fpu: delay FPU register loading until switch  to userspace Andy Lutomirski <luto@amacapital.net> - 2016-10-03 23:00 +0200
        Re: [PATCH RFC 2/5] x86,fpu: delay FPU register loading until  switch to userspace Rik van Riel <riel@redhat.com> - 2016-10-03 23:30 +0200
          Re: [PATCH RFC 2/5] x86,fpu: delay FPU register loading until switch  to userspace Andy Lutomirski <luto@amacapital.net> - 2016-10-03 23:40 +0200
            Re: [PATCH RFC 2/5] x86,fpu: delay FPU register loading until  switch to userspace Rik van Riel <riel@redhat.com> - 2016-10-04 03:30 +0200
              Re: [PATCH RFC 2/5] x86,fpu: delay FPU register loading until switch  to userspace Andy Lutomirski <luto@amacapital.net> - 2016-10-04 04:20 +0200
                Re: [PATCH RFC 2/5] x86,fpu: delay FPU register loading until  switch to userspace Rik van Riel <riel@redhat.com> - 2016-10-04 04:50 +0200
                Re: [PATCH RFC 2/5] x86,fpu: delay FPU register loading until switch  to userspace Andy Lutomirski <luto@amacapital.net> - 2016-10-04 05:10 +0200
                Re: [PATCH RFC 2/5] x86,fpu: delay FPU register loading until switch  to userspace Ingo Molnar <mingo@kernel.org> - 2016-10-04 08:40 +0200
                Re: [PATCH RFC 2/5] x86,fpu: delay FPU register loading until  switch to userspace Rik van Riel <riel@redhat.com> - 2016-10-04 14:50 +0200
            Re: [PATCH RFC 2/5] x86,fpu: delay FPU register loading until  switch to userspace Rik van Riel <riel@redhat.com> - 2016-10-04 04:20 +0200
              Re: [PATCH RFC 2/5] x86,fpu: delay FPU register loading until switch  to userspace Andy Lutomirski <luto@amacapital.net> - 2016-10-04 05:10 +0200
    Re: [PATCH RFC 2/5] x86,fpu: delay FPU register loading until  switch to userspace Rik van Riel <riel@redhat.com> - 2016-10-02 02:50 +0200
      Re: [PATCH RFC 2/5] x86,fpu: delay FPU register loading until switch  to userspace Dave Hansen <dave.hansen@linux.intel.com> - 2016-10-03 18:30 +0200

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