linux-kernel - Re: [RFC PATCH 6/8] preempt/dynamic: Provide preempt_schedule[

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Message-ID: <YBG0cSoJmu8NnoAT@hirez.programming.kicks-ass.net>
Date:   Wed, 27 Jan 2021 19:44:01 +0100
From:   Peter Zijlstra <peterz@...radead.org>
To:     Josh Poimboeuf <jpoimboe@...hat.com>
Cc:     Frederic Weisbecker <frederic@...nel.org>,
        LKML <linux-kernel@...r.kernel.org>,
        Mel Gorman <mgorman@...e.de>, Michal Hocko <mhocko@...nel.org>,
        Thomas Gleixner <tglx@...utronix.de>,
        "Paul E . McKenney" <paulmck@...nel.org>,
        Ingo Molnar <mingo@...hat.com>, Michal Hocko <mhocko@...e.com>,
        rostedt@...dmis.org, jbaron@...mai.com, ardb@...nel.org
Subject: Re: [RFC PATCH 6/8] preempt/dynamic: Provide
 preempt_schedule[_notrace]() static calls

On Wed, Jan 27, 2021 at 10:33:08AM -0600, Josh Poimboeuf wrote:

> What did you think about .static_call_tramp_key?  I could whip up a
> patch later unless you beat me to it.

Yeah, I'm not sure.. why duplicate information already present in
kallsyms?

There's a fair number of features that already require KALLSYMS, I can't
really be bothered about adding one more (kprobes, function_tracer,
stack_tracer, ftrace_syscalls).