From: Colin Ian King <colin.king@canonical.com>
Date: Fri, 19 Mar 2010 10:28:02 +0000 (+0000)
Subject: softlockup: Stop spurious softlockup messages due to overflow
X-Git-Tag: v2.6.34-rc3~27^2~1
X-Git-Url: https://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=8c2eb4805d422bdbf60ba00ff233c794d23c3c00;p=pandora-kernel.git

softlockup: Stop spurious softlockup messages due to overflow

Ensure additions on touch_ts do not overflow.  This can occur
when the top 32 bits of the TSC reach 0xffffffff causing
additions to touch_ts to overflow and this in turn generates
spurious softlockup warnings.

Signed-off-by: Colin Ian King <colin.king@canonical.com>
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
Cc: Eric Dumazet <eric.dumazet@gmail.com>
Cc: <stable@kernel.org>
LKML-Reference: <1268994482.1798.6.camel@lenovo>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
---

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