linux-kernel - Re: [PATCH v4 00/11] livepatch,module: Remove .klp.arch and module_disable

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Date:   Thu, 30 Apr 2020 13:33:12 +0200
From:   Jessica Yu <jeyu@...nel.org>
To:     Josh Poimboeuf <jpoimboe@...hat.com>
Cc:     live-patching@...r.kernel.org, linux-kernel@...r.kernel.org,
        Peter Zijlstra <peterz@...radead.org>,
        Joe Lawrence <joe.lawrence@...hat.com>,
        Miroslav Benes <mbenes@...e.cz>
Subject: Re: [PATCH v4 00/11] livepatch,module: Remove .klp.arch and
 module_disable_ro()

+++ Josh Poimboeuf [29/04/20 10:24 -0500]:
>v4:
>- Fixed rebase bisection regression [Miroslav]
>- Made module_enable_ro() static [Jessica]
>- Added Acked-by's
>
>v3:
>- klp: split klp_write_relocations() into object/section specific
>  functions [joe]
>- s390: fix plt/got writes [joe]
>- s390: remove text_mutex usage [mbenes]
>- x86: do text_poke_sync() before releasing text_mutex [peterz]
>- split x86 text_mutex changes into separate patch [mbenes]
>
>v2:
>- add vmlinux.ko check [peterz]
>- remove 'klp_object' forward declaration [mbenes]
>- use text_mutex [jeyu]
>- fix documentation TOC [jeyu]
>- fix s390 issues [mbenes]
>- upstream kpatch-build now supports this
>  (though it's only enabled for Linux >= 5.8)
>
>These patches add simplifications and improvements for some issues Peter
>found six months ago, as part of his non-writable text code (W^X)
>cleanups.
>
>Highlights:
>
>- Remove the livepatch arch-specific .klp.arch sections, which were used
>  to do paravirt patching and alternatives patching for livepatch
>  replacement code.
>
>- Add support for jump labels in patched code (only for static keys
>  which live in vmlinux).
>
>- Remove the last module_disable_ro() usage.

Nice! Glad the .klp.arch sections are going away. For kernel/module.c
and include/linux/module.h parts:

Acked-by: Jessica Yu <jeyu@...nel.org>