From: Peter Zijlstra <a.p.zijlstra@chello.nl>
Date: Fri, 24 Jul 2009 10:25:30 +0000 (+0200)
Subject: sched: Add debug check to task_of()
X-Git-Tag: v2.6.32-rc1~719^2~33
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=8f48894fcc89ddec62e1762f73a0825793e59e91;p=pandora-kernel.git

sched: Add debug check to task_of()

A frequent mistake appears to be to call task_of() on a
scheduler entity that is not actually a task, which can result
in a wild pointer.

Add a check to catch these mistakes.

Suggested-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Peter Zijlstra <a.p.zijlstra@chello.nl>
LKML-Reference: <new-submission>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
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