From: Steven Rostedt <rostedt@goodmis.org>
Date: Fri, 25 Jul 2008 22:00:42 +0000 (-0400)
Subject: ftrace: disable tracing on acpi idle calls
X-Git-Tag: v2.6.27-rc1~81^2~1
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=dcf309974555d17019c6a8e1a425238f17990b71;p=pandora-kernel.git

ftrace: disable tracing on acpi idle calls

The acpi idle waits calls local_irq_save and then uses mwait to go into
idle. The tracer gets reenabled at local_irq_save but does not detect that
the idle allows for wake ups.

This patch adds code to disable the tracing when acpi puts the CPU to idle.

Signed-off-by: Steven Rostedt <srostedt@redhat.com>
Cc: Peter Zijlstra <peterz@infradead.org>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
---

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