From: Peter Zijlstra <a.p.zijlstra@chello.nl>
Date: Wed, 13 May 2009 19:26:19 +0000 (+0200)
Subject: perf_counter: Fix perf_output_copy() WARN to account for overflow
X-Git-Tag: v2.6.31-rc1~383^2~278
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=53020fe81eecd0b7be295868ce5850ef8f41074e;p=pandora-kernel.git

perf_counter: Fix perf_output_copy() WARN to account for overflow

The simple reservation test in perf_output_copy() failed to take
unsigned int overflow into account, fix this.

[ Impact: fix false positive warning with more than 4GB of profiling data ]

Signed-off-by: Peter Zijlstra <a.p.zijlstra@chello.nl>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Corey Ashford <cjashfor@linux.vnet.ibm.com>
LKML-Reference: <new-submission>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
---

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