linux-kernel - Re: [PATCH v6] livepatch: Clear relocation targets on a module removal

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Message-ID: <CAPhsuW4MaiJBTNnwVhqkmxPxBn8e1cn9PPGm9PkgF6YaO0AWKQ@mail.gmail.com>
Date:   Fri, 18 Nov 2022 09:14:44 -0800
From:   Song Liu <song@...nel.org>
To:     Petr Mladek <pmladek@...e.com>
Cc:     live-patching@...r.kernel.org, linux-kernel@...r.kernel.org,
        jpoimboe@...nel.org, jikos@...nel.org, mbenes@...e.cz,
        x86@...nel.org, joe.lawrence@...hat.com,
        linuxppc-dev@...ts.ozlabs.org, Josh Poimboeuf <jpoimboe@...hat.com>
Subject: Re: [PATCH v6] livepatch: Clear relocation targets on a module removal

Hi Petr,

On Fri, Nov 18, 2022 at 8:24 AM Petr Mladek <pmladek@...e.com> wrote:
>
> On Thu 2022-09-01 10:12:52, Song Liu wrote:
[...]
> >
> >  arch/powerpc/kernel/module_32.c |  10 ++++
> >  arch/powerpc/kernel/module_64.c |  49 +++++++++++++++
> >  arch/s390/kernel/module.c       |   8 +++
> >  arch/x86/kernel/module.c        | 102 +++++++++++++++++++++++---------
> >  include/linux/moduleloader.h    |   7 +++
> >  kernel/livepatch/core.c         |  41 ++++++++++++-
>
> First, thanks a lot for working on this.
>
> I can't check or test the powerpc and s390 code easily.
>
> I am going to comment only x86 and generic code. It looks good
> but it needs some changes to improve maintainability.

Thanks for these comments and suggestions. I will work on them
and send v4.

Song