From: Peter Zijlstra <a.p.zijlstra@chello.nl>
Date: Mon, 30 Mar 2009 17:07:14 +0000 (+0200)
Subject: perf_counter: provide generic callchain bits
X-Git-Tag: v2.6.31-rc1~383^2~416
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=394ee07623cf556c8daae2b3c00cf5fea47f0811;p=pandora-kernel.git

perf_counter: provide generic callchain bits

Provide the generic callchain support bits. If hw_event->callchain is
set the arch specific perf_callchain() function is called upon to
provide a perf_callchain_entry structure filled with the current
callchain.

If it does so, it is added to the overflow output event.

Signed-off-by: Peter Zijlstra <a.p.zijlstra@chello.nl>
Acked-by: Paul Mackerras <paulus@samba.org>
Orig-LKML-Reference: <20090330171024.254266860@chello.nl>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
---

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