netdev - Re: [PATCH v3 net-next 1/3] perf, bpf: Add BPF support to all perf

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Message-ID: <92f5537b-6450-15e7-a70b-b6d5d8161cca@fb.com>
Date:   Fri, 2 Jun 2017 07:33:58 -0700
From:   Alexei Starovoitov <ast@...com>
To:     Peter Zijlstra <peterz@...radead.org>
CC:     "David S . Miller" <davem@...emloft.net>,
        Brendan Gregg <bgregg@...flix.com>,
        Daniel Borkmann <daniel@...earbox.net>,
        Teng Qin <qinteng@...com>, <netdev@...r.kernel.org>,
        <linux-kernel@...r.kernel.org>, <kernel-team@...com>
Subject: Re: [PATCH v3 net-next 1/3] perf, bpf: Add BPF support to all
 perf_event types

On 6/2/17 1:06 AM, Peter Zijlstra wrote:
> Would it make sense to call perf_event_read_local() on the events here
> in order to weed out the -EOPNOTSUPP  ones?

excellent point! Finally understood your idea about that helper.
Will respin.