From: Soeren Sandmann <sandmann@daimi.au.dk>
Date: Mon, 12 May 2008 03:28:50 +0000 (+0200)
Subject: ftrace/sysprof: don't trace the user stack if we are a kernel thread.
X-Git-Tag: v2.6.27-rc1~1102^2^2~1^2~3
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=cf3271a73b612a03da00681ecd9bfefab37c74c9;p=pandora-kernel.git

ftrace/sysprof: don't trace the user stack if we are a kernel thread.

Check that current->mm is non-NULL before attempting to trace the user
stack.

Also take depth of the kernel stack into account when comparing
against sample_max_depth.

Signed-off-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
---

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