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Date:   Fri, 1 May 2020 10:56:31 -0700
From:   Alexei Starovoitov <>
To:     Song Liu <>
Cc:     bpf <>,
        Network Development <>,
        Alexei Starovoitov <>,
        Daniel Borkmann <>,
        Kernel Team <>
Subject: Re: [PATCH v9 bpf-next 0/3] bpf: sharing bpf runtime stats with

On Thu, Apr 30, 2020 at 12:15 AM Song Liu <> wrote:
> run_time_ns is a useful stats for BPF programs. However, it is gated by
> sysctl kernel.bpf_stats_enabled. When multiple user space tools are
> toggling kernl.bpf_stats_enabled at the same time, they may confuse each
> other.
> Solve this problem with a new BPF command BPF_ENABLE_STATS.
> Changes v8 => v9:
>   1. Clean up in selftest (Andrii).
>   2. Not using static variable in test program (Andrii).

Applied. Thanks

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