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

From: Michael Ellerman
Date: Fri Apr 15 2016 - 07:23:04 EST


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@xxxxxxx>
>
> 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