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

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Date:	Fri, 15 Apr 2016 21:22:49 +1000
From:	Michael Ellerman <mpe@...erman.id.au>
To:	Josh Poimboeuf <jpoimboe@...hat.com>, Torsten Duwe <duwe@....de>
Cc:	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 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.

cheers