Re: [PATCH 0/3] livepatch: add shadow variable API

From	Jiri Kosina <jikos@kernel.org>
Newsgroups	linux.kernel
Subject	Re: [PATCH 0/3] livepatch: add shadow variable API
Date	2017-06-01 22:40 +0200
Message-ID	<tNF2V-7C0-11@gated-at.bofh.it> (permalink)
References	<tND17-68x-3@gated-at.bofh.it> <tNEzU-7oF-13@gated-at.bofh.it> <tNETg-7v6-5@gated-at.bofh.it>
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On Thu, 1 Jun 2017, Joe Lawrence wrote:

>  * the intention is that only livepatched code will be calling
> klp_shadow_*, so it can assume that the current task is patched

Ah, okay, that fully answers my question, thanks. That makes it impossible 
though to apply the same technique to a single variable twice, without 
further tweaks (either versioning of the variables, or actually stacking 
the shadowing itself).

Honestly though, I don't think that's going to be a big issue in practice.

> Maybe I misunderstood the question... if so, I can update the 
> documentation file to better describe what's going on.

I think you didn't misunderstand it. But it might be beneficial to have a 
few additional explanatory words in the documentation nevertheless :)

Thanks,

-- 
Jiri Kosina
SUSE Labs

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[PATCH 0/3] livepatch: add shadow variable API Joe Lawrence <joe.lawrence@redhat.com> - 2017-06-01 20:30 +0200
  [PATCH 3/3] livepatch: add shadow variable sample program Joe Lawrence <joe.lawrence@redhat.com> - 2017-06-01 20:30 +0200
  [PATCH 2/3] livepatch: add shadow variable documentation Joe Lawrence <joe.lawrence@redhat.com> - 2017-06-01 20:30 +0200
  Re: [PATCH 0/3] livepatch: add shadow variable API Jiri Kosina <jikos@kernel.org> - 2017-06-01 22:10 +0200
    Re: [PATCH 0/3] livepatch: add shadow variable API Joe Lawrence <joe.lawrence@redhat.com> - 2017-06-01 22:30 +0200
      Re: [PATCH 0/3] livepatch: add shadow variable API Jiri Kosina <jikos@kernel.org> - 2017-06-01 22:40 +0200

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