linux-kernel - Re: [PATCH v11 3/5] arm: introduce CONFIG_PARAVIRT, PARAVIRT_TIME_ACCOUNTING and pv_time

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Message-ID: <20151120164702.GF8644@n2100.arm.linux.org.uk>
Date:	Fri, 20 Nov 2015 16:47:03 +0000
From:	Russell King - ARM Linux <linux@....linux.org.uk>
To:	Stefano Stabellini <stefano.stabellini@...citrix.com>
Cc:	linux-arm-kernel@...ts.infradead.org,
	xen-devel@...ts.xensource.com, linux-kernel@...r.kernel.org,
	konrad.wilk@...cle.com, marc.zyngier@....com, will.deacon@....com,
	Ian Campbell <Ian.Campbell@...rix.com>, olof@...om.net,
	arnd@...db.de, catalin.marinas@....com, nico@...aro.org,
	cov@...eaurora.org
Subject: Re: [PATCH v11 3/5] arm: introduce CONFIG_PARAVIRT,
 PARAVIRT_TIME_ACCOUNTING and pv_time_ops

On Fri, Nov 20, 2015 at 02:40:31PM +0000, Stefano Stabellini wrote:
> On Fri, 20 Nov 2015, Christopher Covington wrote:
> > Hi Stefano,
> > 
> > On 11/20/2015 09:31 AM, Stefano Stabellini wrote:
> > > On Tue, 10 Nov 2015, Stefano Stabellini wrote:
> > >> On Thu, 5 Nov 2015, Stefano Stabellini wrote:
> > >>> Introduce CONFIG_PARAVIRT and PARAVIRT_TIME_ACCOUNTING on ARM.
> > >>>
> > >>> The only paravirt interface supported is pv_time_ops.steal_clock, so no
> > >>> runtime pvops patching needed.
> > >>>
> > >>> This allows us to make use of steal_account_process_tick for stolen
> > >>> ticks accounting.
> > >>>
> > >>> Signed-off-by: Stefano Stabellini <stefano.stabellini@...citrix.com>
> > >>> Acked-by: Christopher Covington <cov@...eaurora.org>
> > >>> Acked-by: Ian Campbell <ian.campbell@...rix.com>
> > >>> CC: linux@....linux.org.uk
> > >>> CC: will.deacon@....com
> > >>> CC: nico@...aro.org
> > >>> CC: marc.zyngier@....com
> > >>> CC: cov@...eaurora.org
> > >>> CC: arnd@...db.de
> > >>> CC: olof@...om.net
> > >>
> > >>
> > >> Russell,
> > >> are you OK with this patch?
> > > 
> > > Russell,
> > > 
> > > I am going to drop this patch and add a small #ifdef to
> > > arch/arm/xen/enlighten.c to be able to use this functionality on arm64.
> > > 
> > > If you change your mind let me know.
> > 
> > It appears to me as though he's not copied on this message.
> 
> He was. He is now in To:.

I think the patch is fine.

Sorry, but I no longer read every email that passes by due to the amount
of email I now receive, and due to the nature of modern email clients with
their stupid ideas about how to formulate the To: and Cc: headers for
replies[*], I attach no significance to being mentioned in either the To:
or Cc: headers.

Overall, what this means is it's now difficult to attact my attention to
any particular thread.  Sorry about that, I have no solution to this
problem.


* - modern mailers have started to preserve the To: and Cc: headers from
the message being replied to, which means that if I'm mentioned in the
To: header initially, my address stays in the To: header despite the
discussion not being directed _at_ me.  Hence, deciding what to reply to
based on where my address appears in the headers is meaningless with
modern mail clients.

-- 
FTTC broadband for 0.8mile line: currently at 9.6Mbps down 400kbps up
according to speedtest.net.
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