Messages in this thread | | | Date | Fri, 7 Nov 2014 07:11:53 -0600 | From | Josh Poimboeuf <> | Subject | Re: [PATCH 0/2] Kernel Live Patching |
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On Thu, Nov 06, 2014 at 11:47:45PM -0800, Christoph Hellwig wrote: > On Thu, Nov 06, 2014 at 09:24:23PM +0100, Vojtech Pavlik wrote: > > One reason is that there are currently at least two generators using > > very different methods of generation (in addition to the option of doing > > the patch module by hand), and neither of them are currently in a state > > where they would be ready for inclusion into the kernel (although the > > kpatch one is clearly closer to that). > > So agree on one method and get it into shape, just like we do for other > kernel subsystems.
That's our goal (and it sounds like everybody's on board with that).
But we have two different implementations, all the way up the stack. I think we have to work on combining and stabilizing one thing at a time. We want to do this in stages:
1. Define a common core module with an API that can be used by all three approaches (manual, kpatch generator, kGraft generator)
2. Add consistency model(s) (e.g. kpatch stop_machine, kGraft per-task consistency, Masami's per task ref counting)
3. Add combined patch module generation tool
-- Josh
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