X-Git-Url: https://git.openpandora.org/cgi-bin/gitweb.cgi?p=pandora-kernel.git;a=blobdiff_plain;f=include%2Flinux%2Fwait.h;h=794be7af58aeff2191059ab350b1b258ea597a03;hp=d38c9fecdc368450d00a4e5602944b0288a2c64b;hb=51bece910d2b0aca64cd3dee9fa2a8aa7feeadd9;hpb=38b22b6e9f46ab8f73ef5734f0e0a000766a9258

diff --git a/include/linux/wait.h b/include/linux/wait.h
index d38c9fecdc36..794be7af58ae 100644
--- a/include/linux/wait.h
+++ b/include/linux/wait.h
@@ -19,7 +19,6 @@
 
 #ifdef __KERNEL__
 
-#include <linux/config.h>
 #include <linux/list.h>
 #include <linux/stddef.h>
 #include <linux/spinlock.h>
@@ -54,6 +53,7 @@ struct __wait_queue_head {
 };
 typedef struct __wait_queue_head wait_queue_head_t;
 
+struct task_struct;
 
 /*
  * Macros for declaration and initialisaton of the datatypes
@@ -68,7 +68,7 @@ typedef struct __wait_queue_head wait_queue_head_t;
 	wait_queue_t name = __WAITQUEUE_INITIALIZER(name, tsk)
 
 #define __WAIT_QUEUE_HEAD_INITIALIZER(name) {				\
-	.lock		= SPIN_LOCK_UNLOCKED,				\
+	.lock		= __SPIN_LOCK_UNLOCKED(name.lock),		\
 	.task_list	= { &(name).task_list, &(name).task_list } }
 
 #define DECLARE_WAIT_QUEUE_HEAD(name) \
@@ -77,9 +77,15 @@ typedef struct __wait_queue_head wait_queue_head_t;
 #define __WAIT_BIT_KEY_INITIALIZER(word, bit)				\
 	{ .flags = word, .bit_nr = bit, }
 
+/*
+ * lockdep: we want one lock-class for all waitqueue locks.
+ */
+extern struct lock_class_key waitqueue_lock_key;
+
 static inline void init_waitqueue_head(wait_queue_head_t *q)
 {
 	spin_lock_init(&q->lock);
+	lockdep_set_class(&q->lock, &waitqueue_lock_key);
 	INIT_LIST_HEAD(&q->task_list);
 }