From d13e5edd7284bedcf5952e1b6490e39ad843cb91 Mon Sep 17 00:00:00 2001
From: Todd Android Poynor <toddpoynor@google.com>
Date: Thu, 23 Dec 2010 01:52:44 +0100
Subject: [PATCH] ARM: 6540/1: Stop irqsoff trace on return to user

If the irqsoff tracer is in use, stop tracing the interrupt disable
interval when returning to userspace.  Tracing userspace execution time
as interrupts disabled time is not helpful for kernel performance
analysis purposes.  Only do so if the irqsoff tracer is enabled, to
avoid overhead for lockdep, which doesn't care.

Signed-off-by: Todd Poynor <toddpoynor@google.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
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