linux-kernel - Re: [PATCH] perf bpf: Return NULL when RB tree lookup fails in perf_env__find

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Date:   Wed, 17 Apr 2019 14:37:31 -0300
From:   Arnaldo Carvalho de Melo <arnaldo.melo@...il.com>
To:     Song Liu <songliubraving@...com>
Cc:     Jiri Olsa <jolsa@...nel.org>,
        Alexander Shishkin <alexander.shishkin@...ux.intel.com>,
        Namhyung Kim <namhyung@...nel.org>,
        Peter Zijlstra <peterz@...radead.org>,
        lkml <linux-kernel@...r.kernel.org>,
        Ingo Molnar <mingo@...nel.org>,
        Peter Zijlstra <a.p.zijlstra@...llo.nl>
Subject: Re: [PATCH] perf bpf: Return NULL when RB tree lookup fails in
 perf_env__find_btf()

Em Wed, Apr 17, 2019 at 04:49:13PM +0000, Song Liu escreveu:
> > On Apr 17, 2019, at 7:55 AM, Jiri Olsa <jolsa@...nel.org> wrote:
> > 
> > We currently don't return NULL in case we don't find the
> > bpf_prog_info_node, fixing that.
> > 
> > Signed-off-by: Jiri Olsa <jolsa@...nel.org>
> > Cc: Alexander Shishkin <alexander.shishkin@...ux.intel.com>
> > Cc: Namhyung Kim <namhyung@...nel.org>
> > Cc: Peter Zijlstra <peterz@...radead.org>
> > Cc: Song Liu <songliubraving@...com>
> > Fixes: 3792cb2ff43b ("perf bpf: Save BTF in a rbtree in perf_env")
> > Link: http://lkml.kernel.org/n/tip-99g9rg4p20a1o99vr0nkjhq8@git.kernel.org
> > Signed-off-by: Arnaldo Carvalho de Melo <acme@...hat.com>
> 
> Acked-by: Song Liu <songliubraving@...com>

Thanks, applied.

- Arnaldo