[patch 43/61] lock validator: special locking: completions

[Ingo Molnar <mingo@elte.hu>]

From: Ingo Molnar <mingo@elte.hu>

teach special (multi-initialized) locking code to the lock validator.
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>
---
---
 include/linux/completion.h |    6 +-----
 kernel/sched.c             |    8 ++++++++
 2 files changed, 9 insertions(+), 5 deletions(-)

Index: linux/include/linux/completion.h
===================================================================
--- linux.orig/include/linux/completion.h
+++ linux/include/linux/completion.h
@@ -21,11 +21,7 @@ struct completion {
 #define DECLARE_COMPLETION(work) \
 	struct completion work = COMPLETION_INITIALIZER(work)
 
-static inline void init_completion(struct completion *x)
-{
-	x->done = 0;
-	init_waitqueue_head(&x->wait);
-}
+extern void init_completion(struct completion *x);
 
 extern void FASTCALL(wait_for_completion(struct completion *));
 extern int FASTCALL(wait_for_completion_interruptible(struct completion *x));
Index: linux/kernel/sched.c
===================================================================
--- linux.orig/kernel/sched.c
+++ linux/kernel/sched.c
@@ -3569,6 +3569,14 @@ __wake_up_sync(wait_queue_head_t *q, uns
 }
 EXPORT_SYMBOL_GPL(__wake_up_sync);	/* For internal use only */
 
+void init_completion(struct completion *x)
+{
+	x->done = 0;
+	__init_waitqueue_head(&x->wait);
+}
+
+EXPORT_SYMBOL(init_completion);
+
 void fastcall complete(struct completion *x)
 {
 	unsigned long flags;
-
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