perf_counter: inheritable sample counters

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Redirect the output to the parent counter and put in some sanity checks.

[ Impact: new perfcounter feature - inherited sampling counters ]

Signed-off-by: Peter Zijlstra <a.p.zijlstra@chello.nl>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Corey Ashford <cjashfor@linux.vnet.ibm.com>
LKML-Reference: <20090505155437.331556171@chello.nl>
Signed-off-by: Ingo Molnar <mingo@elte.hu>

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Peter Zijlstra 2009-05-05 17:50:26 +02:00 • committed by Ingo Molnar

parent 22c1558e51

commit 2023b35921

1 changed files with 30 additions and 2 deletions

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kernel/perf_counter.c

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