linux-kernel - Re: [PATCH v8 7/9] livepatch: Improve the search performance of module_kallsyms_on_each

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Date:   Mon, 14 Nov 2022 23:54:08 -0800
From:   Luis Chamberlain <mcgrof@...nel.org>
To:     "Leizhen (ThunderTown)" <thunder.leizhen@...wei.com>,
        Jiri Olsa <olsajiri@...il.com>, nick.alcock@...cle.com
Cc:     Josh Poimboeuf <jpoimboe@...nel.org>,
        Jiri Kosina <jikos@...nel.org>,
        Miroslav Benes <mbenes@...e.cz>,
        Petr Mladek <pmladek@...e.com>,
        Joe Lawrence <joe.lawrence@...hat.com>,
        live-patching@...r.kernel.org, linux-kernel@...r.kernel.org,
        Masahiro Yamada <masahiroy@...nel.org>,
        Alexei Starovoitov <ast@...nel.org>,
        Kees Cook <keescook@...omium.org>,
        Andrew Morton <akpm@...ux-foundation.org>,
        linux-modules@...r.kernel.org,
        Steven Rostedt <rostedt@...dmis.org>,
        Ingo Molnar <mingo@...hat.com>,
        David Laight <David.Laight@...lab.com>,
        Stephen Rothwell <sfr@...b.auug.org.au>
Subject: Re: [PATCH v8 7/9] livepatch: Improve the search performance of
 module_kallsyms_on_each_symbol()

On Tue, Nov 15, 2022 at 08:30:23AM +0100, Jiri Olsa wrote:
> On Tue, Nov 15, 2022 at 10:10:16AM +0800, Leizhen (ThunderTown) wrote:
> > 
> > 
> > On 2022/11/14 23:46, Luis Chamberlain wrote:
> > > On Mon, Nov 14, 2022 at 02:26:19PM +0100, Jiri Olsa wrote:
> > >> I'll check on that, meanwhile if we could keep the module argument,
> > >> that'd be great
> > > 
> > > As Leizhen suggested I could just drop patches:
> > > 
> > > 7/9 livepatch: Improve the search performance of module_kallsyms_on_each_symbol()
> > > 8/9 kallsyms: Delete an unused parameter related to kallsyms_on_each_symbol()
> > > 
> > > Then after the next kernel is released this can be relooked at.
> > > If this is agreeable let me know.
> > 
> > I'm OK.
> 
> sounds good, thanks

OK thanks, I dropped the last selftest patch as well, and pushed to
modules-next.  Leizhen, can you enhance the selftest for the new module
requirement and repost?

Stephen, you can drop your fix from linux-next, hopefully there should
no longer be any merge conflicts. The module requirement will stick for
now.

Thanks,

  Luis