From: Peter Zijlstra <peterz@infradead.org>
Date: Fri, 2 Aug 2013 19:16:30 +0000 (+0200)
Subject: perf: Do not compute time values unnecessarily
X-Git-Tag: v3.12-rc1~168^3~9
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=5ec4c599a52362896c3e7c6a31ba6145dca9c6f5;p=pandora-kernel.git

perf: Do not compute time values unnecessarily

We should not be calling calc_timer_values() for events that do not actually
have an mmap()'ed userpage.

Signed-off-by: Peter Zijlstra <peterz@infradead.org>
Link: http://lkml.kernel.org/r/20130802191630.GT27162@twins.programming.kicks-ass.net
Signed-off-by: Ingo Molnar <mingo@kernel.org>
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