From: Ingo Molnar <mingo@elte.hu>
Date: Mon, 4 May 2009 17:23:18 +0000 (+0200)
Subject: perf_counter: convert perf_resource_mutex to a spinlock
X-Git-Tag: v2.6.31-rc1~383^2~303
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=1dce8d99b85aba6eddb8b8260baea944922e6fe7;p=pandora-kernel.git

perf_counter: convert perf_resource_mutex to a spinlock

Now percpu counters can be initialized very early. But the init
sequence uses mutex_lock(). Fortunately, perf_resource_mutex should
be a spinlock anyway, so convert it.

[ Impact: fix crash due to early init mutex use ]

LKML-Reference: <new-submission>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
---

Reading git-diff-tree failed