linux-kernel - Re: [PATCH] perf sched: sync task state macros with kernel

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Message-ID: <20230329071146.GD7701@hirez.programming.kicks-ass.net>
Date:   Wed, 29 Mar 2023 09:11:46 +0200
From:   Peter Zijlstra <peterz@...radead.org>
To:     Ze Gao <zegao2021@...il.com>
Cc:     Ingo Molnar <mingo@...hat.com>,
        Arnaldo Carvalho de Melo <acme@...nel.org>,
        Mark Rutland <mark.rutland@....com>,
        Alexander Shishkin <alexander.shishkin@...ux.intel.com>,
        Jiri Olsa <jolsa@...nel.org>,
        Namhyung Kim <namhyung@...nel.org>,
        Ian Rogers <irogers@...gle.com>,
        Adrian Hunter <adrian.hunter@...el.com>,
        Ingo Molnar <mingo@...nel.org>,
        linux-perf-users@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH] perf sched: sync task state macros with kernel

On Wed, Mar 29, 2023 at 11:52:02AM +0800, Ze Gao wrote:
> commit 8ef9925b02c2 ("sched/debug: Add explicit TASK_PARKED printing")
> changes some task state macros, this patch makes perf-sched in sync
> 

Why does perf care? Where do we export raw state values?

That is, I really don't like this being ABI...