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perf_event_open.2: 4.1 PERF_EVENT_IOC_SET_BPF support 

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@plumgrid.com>

	tracing, perf: Implement BPF programs attached to kprobes

	Signed-off-by: Alexei Starovoitov <ast@plumgrid.com>
	Reviewed-by: Steven Rostedt <rostedt@goodmis.org>
	Reviewed-by: Masami Hiramatsu <masami.hiramatsu.pt@hitachi.com>
	Cc: Andrew Morton <akpm@linux-foundation.org>
	Cc: Arnaldo Carvalho de Melo <acme@infradead.org>
	Cc: Arnaldo Carvalho de Melo <acme@redhat.com>
	Cc: Daniel Borkmann <daniel@iogearbox.net>
	Cc: David S. Miller <davem@davemloft.net>
	Cc: Jiri Olsa <jolsa@redhat.com>
	Cc: Linus Torvalds <torvalds@linux-foundation.org>
	Cc: Namhyung Kim <namhyung@kernel.org>
	Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
	Cc: Peter Zijlstra <peterz@infradead.org>
	Link: http://lkml.kernel.org/r/1427312966-8434-4-git-send-email-ast@plumgrid.com
	Signed-off-by: Ingo Molnar <mingo@kernel.org>

Signed-off-by: Vince Weaver <vincent.weaver@maine.edu>
Signed-off-by: Michael Kerrisk <mtk.manpages@gmail.com>
This commit is contained in:
Vince Weaver 2015-07-23 13:10:21 -04:00 committed by Michael Kerrisk
parent 6bd5186a47
commit b0f7b411be
1 changed files with 13 additions and 0 deletions
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13
man2/perf_event_open.2
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@ -2570,6 +2570,19 @@ 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.
You need
.B CAP_SYS_ADMIN
privileges to use this ioctl.
The argument is a BPF program file descriptor 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