futex: add helper to find the top prio waiter of a futex
authorDarren Hart <dvhltc@us.ibm.com>
Fri, 3 Apr 2009 20:39:42 +0000 (13:39 -0700)
committerThomas Gleixner <tglx@linutronix.de>
Mon, 6 Apr 2009 09:14:01 +0000 (11:14 +0200)
Improve legibility by wrapping finding the top waiter in a function.
This will be used by the follow-on patches for enabling 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>

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