From: Robert Richter <robert.richter@amd.com>
Date: Wed, 29 Apr 2009 10:47:16 +0000 (+0200)
Subject: perf_counter, x86: generic use of cpuc->active
X-Git-Tag: v2.6.31-rc1~383^2~336
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=095342389e2ed8deed07b3076f990260ce3c7c9f;p=pandora-kernel.git

perf_counter, x86: generic use of cpuc->active

cpuc->active will now be used to indicate an enabled counter which
implies also valid pointers of cpuc->counters[]. In contrast,
cpuc->used only locks the counter, but it can be still uninitialized.

[ Impact: refactor and generalize code ]

Signed-off-by: Robert Richter <robert.richter@amd.com>
Cc: Paul Mackerras <paulus@samba.org>
Acked-by: Peter Zijlstra <a.p.zijlstra@chello.nl>
LKML-Reference: <1241002046-8832-20-git-send-email-robert.richter@amd.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
---

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