linux-kernel - Re: [PATCH 0/5] Live patching for powerpc

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Date:	Fri, 15 Apr 2016 23:21:23 +1000
From:	Michael Ellerman <mpe@...erman.id.au>
To:	Josh Poimboeuf <jpoimboe@...hat.com>
Cc:	Torsten Duwe <duwe@....de>, Jiri Kosina <jikos@...nel.org>,
	Miroslav Benes <mbenes@...e.cz>, linuxppc-dev@...abs.org,
	bsingharora@...il.com, linux-kernel@...r.kernel.org,
	rostedt@...dmis.org, kamalesh@...ux.vnet.ibm.com, pmladek@...e.com,
	jeyu@...hat.com, live-patching@...r.kernel.org
Subject: Re: [PATCH 0/5] Live patching for powerpc

On Fri, 2016-04-15 at 07:59 -0500, Josh Poimboeuf wrote:
> On Fri, Apr 15, 2016 at 09:22:49PM +1000, Michael Ellerman wrote:
> > On Thu, 2016-04-14 at 11:41 -0500, Josh Poimboeuf wrote:
> > > On Thu, Apr 14, 2016 at 05:20:29PM +0200, Torsten Duwe wrote:
> > > > On Thu, Apr 14, 2016 at 11:08:02PM +1000, Michael Ellerman wrote:
> > > > > On Thu, 2016-04-14 at 14:57 +0200, Torsten Duwe wrote:
> > > > > > FTR: then I still have a few ppc64 hunks floating around to support certain consistency
> > > > > > models...
> > > > > 
> > > > > OK. I'm not quite sure what you mean but post them and we'll see I guess :)
> > > > 
> > > > It's *roughly* the ppc64 equivalent of Josh Poimboeuf's Mar 25
> > > > > [RFC PATCH v1.9 14/14] livepatch: update task universe when exiting kernel
> > > > which only considers x86.
> > > > 
> > > > It's forward ported from an earlier code base; there's some glue missing,
> > > > but here it is, for reference.
> > > > 
> > > > Signed-off-by: Torsten Duwe <duwe@...e.de>
> > > 
> > > Hi Torsten,
> > > 
> > > Thanks for sharing.  This is quite fortuitous as Miroslav just today
> > > mentioned to me that we would need something like this.  If you don't
> > > mind, I may pull this patch or some variant of it into v2 of the
> > > consistency model.
> >  
> > Well please wait for me to review & ack it before you pull it into anything
> > permanent.
> > 
> > At a quick glance it seems OK but I'd probably do it a little differently. I'll
> > try and have a closer look next week.
> 
> Sure, no problem.  The consistency model patches are still in
> development so they won't be merged anytime soon.  And we wouldn't merge
> any powerpc code without maintainer acks anyway.  I'm just glad you guys
> are looking at it so I don't have to butcher it ;-)

I'm paid to butcher it ;)

cheers