From eb4542b98c81e22e08587b747b21986a45360999 Mon Sep 17 00:00:00 2001
From: Ingo Molnar <mingo@elte.hu>
Date: Mon, 3 Jul 2006 00:25:07 -0700
Subject: [PATCH] lockdep: annotate waitqueues

Create one lock class for all waitqueue locks in the kernel.  Has no effect on
non-lockdep kernels.

Signed-off-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Arjan van de Ven <arjan@linux.intel.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
---
 kernel/wait.c | 4 ++++
 1 file changed, 4 insertions(+)

(limited to 'kernel')

diff --git a/kernel/wait.c b/kernel/wait.c
index 5985d866531..a1d57aeb7f7 100644
--- a/kernel/wait.c
+++ b/kernel/wait.c
@@ -10,6 +10,10 @@
 #include <linux/wait.h>
 #include <linux/hash.h>
 
+struct lock_class_key waitqueue_lock_key;
+
+EXPORT_SYMBOL(waitqueue_lock_key);
+
 void fastcall add_wait_queue(wait_queue_head_t *q, wait_queue_t *wait)
 {
 	unsigned long flags;
-- 
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