And create the internal perf events header.
v2: Keep an internal inlined perf_output_copy()
Signed-off-by: Frederic Weisbecker
Acked-by: Peter Zijlstra
Cc: Borislav Petkov
Cc: Stephane Eranian
Cc: Arnaldo Carvalho de Melo
Cc: Steven Rostedt
Link: http://lkml.kernel.org/r/1305827704-5607-1-git-send-email-fweisbec@gmail.com
[ v3: use clearer 'ring_buffer' and 'rb' naming ]
Signed-off-by: Ingo Molnar