From: James Hogan <james.hogan@imgtec.com>
Date: Wed, 27 Feb 2013 16:16:38 +0000 (+0000)
Subject: metag: perf: fix wrap handling in delta calculation
X-Git-Tag: omap-for-v3.10/dt-fixes-for-merge-window~101^2~16
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=c43ca04b5e7854b3996f84a495e4553941e76266;p=pandora-kernel.git

metag: perf: fix wrap handling in delta calculation

When calculating the delta, mask with MAX_PERIOD (24 bits) to handle
wrapping, which particularly happens with periodic sampling since the
value is intentionally set so that it will overflow soon.

Signed-off-by: James Hogan <james.hogan@imgtec.com>
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: Arnaldo Carvalho de Melo <acme@ghostprotocols.net>
---

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