From: Peter Zijlstra <a.p.zijlstra@chello.nl>
Date: Wed, 25 Mar 2009 11:48:31 +0000 (+0100)
Subject: perf_counter: allow and require one-page mmap on counting counters
X-Git-Tag: v2.6.31-rc1~383^2~430
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=7730d8655880f41f2ea519aca2ca6a1413dfd2c9;p=pandora-kernel.git

perf_counter: allow and require one-page mmap on counting counters

A brainfart stopped single page mmap()s working. The rest of the code
should be perfectly fine with not having any data pages.

Reported-by: Paul Mackerras <paulus@samba.org>
Signed-off-by: Peter Zijlstra <a.p.zijlstra@chello.nl>
Orig-LKML-Reference: <1237981712.7972.812.camel@twins>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
---

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