--- /dev/null
+#ifndef _LWK_SPINLOCK_API_SMP_H
+#define _LWK_SPINLOCK_API_SMP_H
+
+#ifndef _LWK_SPINLOCK_H
+# error "please don't include this file directly"
+#endif
+
+/*
+ * include/lwk/spinlock_api_smp.h
+ *
+ * spinlock API declarations on SMP (and debug)
+ * (implemented in kernel/spinlock.c)
+ *
+ * portions Copyright 2005, Red Hat, Inc., Ingo Molnar
+ * Released under the General Public License (GPL).
+ */
+
+int in_lock_functions(unsigned long addr);
+
+#define assert_spin_locked(x) BUG_ON(!spin_is_locked(x))
+
+void __lockfunc _spin_lock(spinlock_t *lock) __acquires(spinlock_t);
+void __lockfunc _read_lock(rwlock_t *lock) __acquires(rwlock_t);
+void __lockfunc _write_lock(rwlock_t *lock) __acquires(rwlock_t);
+void __lockfunc _spin_lock_bh(spinlock_t *lock) __acquires(spinlock_t);
+void __lockfunc _read_lock_bh(rwlock_t *lock) __acquires(rwlock_t);
+void __lockfunc _write_lock_bh(rwlock_t *lock) __acquires(rwlock_t);
+void __lockfunc _spin_lock_irq(spinlock_t *lock) __acquires(spinlock_t);
+void __lockfunc _read_lock_irq(rwlock_t *lock) __acquires(rwlock_t);
+void __lockfunc _write_lock_irq(rwlock_t *lock) __acquires(rwlock_t);
+unsigned long __lockfunc _spin_lock_irqsave(spinlock_t *lock)
+ __acquires(spinlock_t);
+unsigned long __lockfunc _read_lock_irqsave(rwlock_t *lock)
+ __acquires(rwlock_t);
+unsigned long __lockfunc _write_lock_irqsave(rwlock_t *lock)
+ __acquires(rwlock_t);
+int __lockfunc _spin_trylock(spinlock_t *lock);
+int __lockfunc _read_trylock(rwlock_t *lock);
+int __lockfunc _write_trylock(rwlock_t *lock);
+int __lockfunc _spin_trylock_bh(spinlock_t *lock);
+void __lockfunc _spin_unlock(spinlock_t *lock) __releases(spinlock_t);
+void __lockfunc _read_unlock(rwlock_t *lock) __releases(rwlock_t);
+void __lockfunc _write_unlock(rwlock_t *lock) __releases(rwlock_t);
+void __lockfunc _spin_unlock_bh(spinlock_t *lock) __releases(spinlock_t);
+void __lockfunc _read_unlock_bh(rwlock_t *lock) __releases(rwlock_t);
+void __lockfunc _write_unlock_bh(rwlock_t *lock) __releases(rwlock_t);
+void __lockfunc _spin_unlock_irq(spinlock_t *lock) __releases(spinlock_t);
+void __lockfunc _read_unlock_irq(rwlock_t *lock) __releases(rwlock_t);
+void __lockfunc _write_unlock_irq(rwlock_t *lock) __releases(rwlock_t);
+void __lockfunc _spin_unlock_irqrestore(spinlock_t *lock, unsigned long flags)
+ __releases(spinlock_t);
+void __lockfunc _read_unlock_irqrestore(rwlock_t *lock, unsigned long flags)
+ __releases(rwlock_t);
+void __lockfunc _write_unlock_irqrestore(rwlock_t *lock, unsigned long flags)
+ __releases(rwlock_t);
+
+#endif /* _LWK_SPINLOCK_API_SMP_H */