[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]
Message-ID: <20090612123753.GG31845@elte.hu>
Date: Fri, 12 Jun 2009 14:37:53 +0200
From: Ingo Molnar <mingo@...e.hu>
To: Jeremy Fitzhardinge <jeremy@...p.org>
Cc: the arch/x86 maintainers <x86@...nel.org>,
Linux Kernel Mailing List <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH 0/5] x86/paravirt: clean up paravirt.h and optimise FPU
context switch
* Jeremy Fitzhardinge <jeremy@...p.org> wrote:
> Hi Ingo,
>
> This series:
> - splits asm/paravirt.h into paravirt.h and paravirt_types.h
> - splits out the context switch core of math_state_restore into __math_state_restore
> - rearranges 32 and 64 bit context switch to be the same and to properly
> batch FPU context switches when running paravirtualized
>
> There should be no performance side-effects of these changes. They amount
> to a small rearrangement of the existing code (and bringing the 64-bit
> code a bit closer to 32-bit, countering some genetic drift).
>
> I think these are probably safe to go into this merge window, but I
> don't think I've posted these before, so I understand if you're hesitant
> (I've had them applied locally for some time with no ill-effects).
> The paravirt cleanup is pure movement between headers, so I don't think
> there's much risk there at all.
>
> arch/x86/include/asm/i387.h | 1 +
> arch/x86/include/asm/paravirt.h | 711 +--------------------------------
> arch/x86/include/asm/paravirt_types.h | 720 +++++++++++++++++++++++++++++++++
> arch/x86/kernel/process_32.c | 27 +-
> arch/x86/kernel/process_64.c | 33 +-
> arch/x86/kernel/traps.c | 33 +-
> 6 files changed, 782 insertions(+), 743 deletions(-)
hm, no Git pull coordinates - but you have this in a Git tree,
right?
Ingo
--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@...r.kernel.org
More majordomo info at http://vger.kernel.org/majordomo-info.html
Please read the FAQ at http://www.tux.org/lkml/
Powered by blists - more mailing lists