[patch 03/10] perf_event_open.2: 4.1 PERF_EVENT_IOC_SET_BPF support

[Vince Weaver]

This manpage patch relates to the addition of the
PERF_EVENT_IOC_SET_BPF ioctl in the following commit:

	commit 2541517c32be2531e0da59dfd7efc1ce844644f5
	Author: Alexei Starovoitov <ast@xxxxxxxxxxxx>
    
	tracing, perf: Implement BPF programs attached to kprobes

	Signed-off-by: Alexei Starovoitov <ast@xxxxxxxxxxxx>
	Reviewed-by: Steven Rostedt <rostedt@xxxxxxxxxxx>
	Reviewed-by: Masami Hiramatsu <masami.hiramatsu.pt@xxxxxxxxxxx>
	Cc: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>
	Cc: Arnaldo Carvalho de Melo <acme@xxxxxxxxxxxxx>
	Cc: Arnaldo Carvalho de Melo <acme@xxxxxxxxxx>
	Cc: Daniel Borkmann <daniel@xxxxxxxxxxxxx>
	Cc: David S. Miller <davem@xxxxxxxxxxxxx>
	Cc: Jiri Olsa <jolsa@xxxxxxxxxx>
	Cc: Linus Torvalds <torvalds@xxxxxxxxxxxxxxxxxxxx>
	Cc: Namhyung Kim <namhyung@xxxxxxxxxx>
	Cc: Peter Zijlstra <a.p.zijlstra@xxxxxxxxx>
	Cc: Peter Zijlstra <peterz@xxxxxxxxxxxxx>
	Link: http://lkml.kernel.org/r/1427312966-8434-4-git-send-email-ast@xxxxxxxxxxxx
	Signed-off-by: Ingo Molnar <mingo@xxxxxxxxxx>


Signed-off-by: Vince Weaver <vincent.weaver@xxxxxxxxx>

diff --git a/man2/perf_event_open.2 b/man2/perf_event_open.2
index 01ee579..e08288e 100644
--- a/man2/perf_event_open.2
+++ b/man2/perf_event_open.2
@@ -2480,6 +2480,16 @@ This returns the event ID value for the given event file descriptor.
 
 The argument is a pointer to a 64-bit unsigned integer
 to hold the result.
+.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
+a previous
+.BR bpf (2)
+system call.
 .SS Using prctl
 A process can enable or disable all the event groups that are
 attached to it using the
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