perf_counter tools: use mmap() output
update kerneltop to use the mmap() output to gather overflow information Signed-off-by: Peter Zijlstra <a.p.zijlstra@chello.nl> Cc: Wu Fengguang <fengguang.wu@intel.com> Cc: Paul Mackerras <paulus@samba.org> Orig-LKML-Reference: <20090323172417.677932499@chello.nl> Signed-off-by: Ingo Molnar <mingo@elte.hu>
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