Re: [patch 03/11] perf_event_open.2: 4.1 PERF_EVENT_IOC_SET_BPF support

["Michael Kerrisk (man-pages)" <mtk.manpages@gmail.com>]

On 07/23/2015 07:10 PM, Vince Weaver wrote:
> 
> This manpage patch relates to the addition of the
> PERF_EVENT_IOC_SET_BPF ioctl in the following commit:

Thanks, Vince. Applied.

Cheers,

Michael



> 	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>
> 
> diff --git a/man2/perf_event_open.2 b/man2/perf_event_open.2
> index a6b90ec..09eda9a 100644
> --- a/man2/perf_event_open.2
> +++ b/man2/perf_event_open.2
> @@ -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
> 


-- 
Michael Kerrisk
Linux man-pages maintainer; http://www.kernel.org/doc/man-pages/
Linux/UNIX System Programming Training: http://man7.org/training/