linux-kernel - Re: [PATCH V3 00/17] perf tools and x86 PTI entry trampolines

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Message-ID: <20180605160046.GZ12180@hirez.programming.kicks-ass.net>
Date:   Tue, 5 Jun 2018 18:00:46 +0200
From:   Peter Zijlstra <peterz@...radead.org>
To:     Arnaldo Carvalho de Melo <acme@...nel.org>
Cc:     Adrian Hunter <adrian.hunter@...el.com>,
        Thomas Gleixner <tglx@...utronix.de>,
        Ingo Molnar <mingo@...hat.com>,
        Andy Lutomirski <luto@...nel.org>,
        "H. Peter Anvin" <hpa@...or.com>, Andi Kleen <ak@...ux.intel.com>,
        Alexander Shishkin <alexander.shishkin@...ux.intel.com>,
        Dave Hansen <dave.hansen@...ux.intel.com>,
        Joerg Roedel <joro@...tes.org>, Jiri Olsa <jolsa@...hat.com>,
        linux-kernel@...r.kernel.org, x86@...nel.org
Subject: Re: [PATCH V3 00/17] perf tools and x86 PTI entry trampolines

On Tue, Jun 05, 2018 at 12:29:43PM -0300, Arnaldo Carvalho de Melo wrote:
> > Arnaldo has queued the tools patches, but there are still 3 kernel patches:
> > 
> > 	kallsyms: Simplify update_iter_mod()
> > 	kallsyms, x86: Export addresses of syscall trampolines

That one needs a changelog.

> > 	x86: Add entry trampolines to kcore
> > 
> > Are there any further comments on these?  Can they be applied?
> 
> Would be interesting to have some acked-by from kernel folks :-\

Other than that, they look good I tihnk. The updatE_iter_mod thing took
me a few tries, so maybe something can be done to the changelog there
too, maybe explicitly mention the rule for the *mod_end things.