orangefs: use sparse annotations for holding locks across function calls.

Sparse complained and Al Viro knew what to do...
Signed-off-by: Mike Marshall <hubcap@omnibond.com>

fs/orangefs/waitqueue.c

@@ -17,8 +17,12 @@
 #include "orangefs-kernel.h"
 #include "orangefs-bufmap.h"
 
-static int wait_for_matching_downcall(struct orangefs_kernel_op_s *, long, bool);
-static void orangefs_clean_up_interrupted_operation(struct orangefs_kernel_op_s *);
+static int wait_for_matching_downcall(struct orangefs_kernel_op_s *op,
+		long timeout,
+		bool interruptible)
+			__acquires(op->lock);
+static void orangefs_clean_up_interrupted_operation(struct orangefs_kernel_op_s *op)
+	__releases(op->lock);
 
 /*
  * What we do in this function is to walk the list of operations that are
@@ -246,6 +250,7 @@ bool orangefs_cancel_op_in_progress(struct orangefs_kernel_op_s *op)
  */
 static void
 	orangefs_clean_up_interrupted_operation(struct orangefs_kernel_op_s *op)
+		__releases(op->lock)
 {
 	/*
 	 * handle interrupted cases depending on what state we were in when
@@ -313,8 +318,9 @@ static void
  * Returns with op->lock taken.
  */
 static int wait_for_matching_downcall(struct orangefs_kernel_op_s *op,
-				      long timeout,
-				      bool interruptible)
+		long timeout,
+		bool interruptible)
+			__acquires(op->lock)
 {
 	long n;