linux-kernel - Re: [PATCH 4/6] perf: Optimize get_recursion

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Date:   Sat, 31 Oct 2020 12:23:40 +0100
From:   Peter Zijlstra <peterz@...radead.org>
To:     Steven Rostedt <rostedt@...dmis.org>
Cc:     Thomas Gleixner <tglx@...utronix.de>,
        Jesper Dangaard Brouer <brouer@...hat.com>, mingo@...nel.org,
        linux-kernel@...r.kernel.org, kan.liang@...ux.intel.com,
        acme@...nel.org, mark.rutland@....com,
        alexander.shishkin@...ux.intel.com, jolsa@...hat.com,
        namhyung@...nel.org, ak@...ux.intel.com, eranian@...gle.com
Subject: Re: [PATCH 4/6] perf: Optimize get_recursion_context()

On Fri, Oct 30, 2020 at 07:31:24PM -0400, Steven Rostedt wrote:

> Note, I thought that in_nmi() and friends was in interrupt.h, but is
> really in preempt.h. All the values used in Peter's code is also
> defined in preempt.h, so why not have something like that there?
> 
> I take back adding it to interrupt.h but have it in preempt.h, as it's
> not defining anything new there.

Yeah, preempt.h is the right place for it.