commit 8dac456a681bd94272ff50ecb31be6b669382c2b
author Darren Hart <dvhltc@us.ibm.com> Fri Apr 03 13:40:12 2009 -0700
committer Thomas Gleixner <tglx@linutronix.de> Mon Apr 06 11:14:02 2009 +0200
tree 1558cac565781e503c6a793a7921b49c0ace9a22
parent dd9739980b50c8cde33e1f8eb08b7e0140bcd61e

rt_mutex: add proxy lock routines

This patch is a prerequisite for futex requeue_pi. It basically splits
rt_mutex_slowlock() right down the middle, just before the first call
to schedule(). It further adds helper functions which make use of the
split and provide the rt-mutex preliminaries for futex requeue_pi.

Signed-off-by: Darren Hart <dvhltc@us.ibm.com>
Reviewed-by: Thomas Gleixner <tglx@linutronix.de>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>