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Message-ID: <553006C3.40802@plumgrid.com>
Date: Thu, 16 Apr 2015 12:00:19 -0700
From: Alexei Starovoitov <ast@plumgrid.com>
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To: Vince Weaver <vincent.weaver@maine.edu>,
        "Michael Kerrisk (man-pages)" <mtk.manpages@gmail.com>
CC: linux-man@vger.kernel.org, linux-kernel@vger.kernel.org,
        Peter Zijlstra <a.p.zijlstra@chello.nl>,
        Paul Mackerras <paulus@samba.org>, Ingo Molnar <mingo@redhat.com>,
        Arnaldo Carvalho de Melo <acme@kernel.org>,
        Stephane Eranian <eranian@google.com>,
        Steven Rostedt <rostedt@goodmis.org>,
        Masami Hiramatsu <masami.hiramatsu.pt@hitachi.com>,
        Andrew Morton <akpm@linux-foundation.org>,
        Daniel Borkmann <daniel@iogearbox.net>,
        "David S. Miller" <davem@davemloft.net>, Jiri Olsa <jolsa@redhat.com>,
        Linus Torvalds <torvalds@linux-foundation.org>,
        Namhyung Kim <namhyung@kernel.org>
Subject: Re: [patch 03/10] perf_event_open.2: 4.1 PERF_EVENT_IOC_SET_BPF support
References: <alpine.DEB.2.11.1504161412550.15181@vincent-weaver-1.umelst.maine.edu>
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On 4/16/15 11:13 AM, Vince Weaver wrote:
>
> This manpage patch relates to the addition of the
> PERF_EVENT_IOC_SET_BPF ioctl in the following commit:
>
> Signed-off-by: Vince Weaver <vincent.weaver@maine.edu>
>
> +.TP
> +.BR PERF_EVENT_IOC_SET_BPF " (since Linux 4.1)"
> +.\" commit 2541517c32be2531e0da59dfd7efc1ce844644f5
> +This allows attaching a Berkeley Packet Filter (BPF)
> +program to an existing kprobe tracepoint event.
> +
> +The argument is a BPF program id that was created by

... is a BPF program FD ...

other than that it looks good. Thank you for documenting!

btw, I'll refresh my month old bpf(2) patch:
http://thread.gmane.org/gmane.linux.man/8676
with the latest details and repost.
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