On Wed, 2012-01-18 at 10:28 +0100, Mike Galbraith wrote:

quoted

+
+void __init_swait_head(struct swait_head *head, struct lock_class_key *key)
+{
+	raw_spin_lock_init(&head->lock);
+	lockdep_set_class(&head->lock, key);
+	INIT_LIST_HEAD(&head->list);
+}
+EXPORT_SYMBOL_GPL(__init_swait_head);

#include <linux/module.h> ?

Did it fail to compile for you?  The 3.2 version included linux/export.h
which didn't exist, and that failed the compile for me. I removed it an
it compiled fine. But perhaps I should have replaced it with module.h.
I'll look into it.

Thanks!

-- Steve