From: Thomas Gleixner <tglx@linutronix.de>
Date: Fri, 8 Jun 2007 20:46:58 +0000 (-0700)
Subject: rt-mutex: fix chain walk early wakeup bug
X-Git-Tag: v2.6.22-rc5~71
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=1a539a87280b3032fd12bc93a4a82f1d8aa97ca8;p=pandora-kernel.git

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>
---

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