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Date:   Tue, 15 Oct 2019 17:31:20 +0200
From:   Jessica Yu <jeyu@kernel.org>
To:     Joe Lawrence <joe.lawrence@redhat.com>
Cc:     Miroslav Benes <mbenes@suse.cz>,
        Peter Zijlstra <peterz@infradead.org>,
        Steven Rostedt <rostedt@goodmis.org>, x86@kernel.org,
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        ard.biesheuvel@linaro.org, jpoimboe@redhat.com,
        live-patching@vger.kernel.org
Subject: Re: [PATCH v3 5/6] x86/ftrace: Use text_poke()
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+++ Joe Lawrence [15/10/19 11:06 -0400]:
>On 10/15/19 10:13 AM, Miroslav Benes wrote:
>>Yes, it does. klp_module_coming() calls module_disable_ro() on all
>>patching modules which patch the coming module in order to call
>>apply_relocate_add(). New (patching) code for a module can be relocated
>>only when the relevant module is loaded.
>
>FWIW, would the LPC blue-sky2 model (ie, Steve's suggestion @ 
>plumber's where livepatches only patch a single object and updates are 
>kept on disk to handle coming module updates as they are loaded) 
>eliminate those outstanding relocations and the need to perform this 
>late permission flipping?

I wasn't at Plumbers sadly, was this idea documented/talked about in
detail somewhere? (recording, slides, etherpad, etc?). What do you
mean by updates are kept on disk? Maybe someone can explain it more
in detail? :)