From: Ingo Molnar <mingo@elte.hu>
Date: Tue, 7 Apr 2009 09:30:17 +0000 (+0200)
Subject: x86, perfcounters: add atomic64_xchg()
X-Git-Tag: v2.6.31-rc1~383^2~391
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=98c2aaf8be5baf7193be37fb28bce8e7327158bc;p=pandora-kernel.git

x86, perfcounters: add atomic64_xchg()

Complete atomic64_t support on the 32-bit side by adding atomic64_xch().

Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
LKML-Reference: <20090406094518.445450972@chello.nl>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
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