tree 6dea1610ba5ff54f0e3f845d83bfc68ffc162e31
parent c0d1d2bf5a28f78def7b68ca1eb5ba31aafd43a1
author Thomas Gleixner <tglx@linutronix.de> 1181335618 -0700
committer Linus Torvalds <torvalds@woody.linux-foundation.org> 1181348614 -0700

rt-mutex: fix chain walk early wakeup bug

Alexey Kuznetsov found some problems in the pi-futex code.

One of the root causes is:

When a wakeup happens, we do not to stop the chain walk so we follow a not
longer relevant locking chain.

Drop out when this happens.

Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Acked-by: Ingo Molnar <mingo@elte.hu>
Cc: Steven Rostedt <rostedt@goodmis.org>
Cc: Alexey Kuznetsov <kuznet@ms2.inr.ac.ru>
Cc: Ulrich Drepper <drepper@redhat.com>
Cc: Eric Dumazet <dada1@cosmosbay.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>