1/*
 2 * include/asm-generic/mutex-null.h
 3 *
 4 * Generic implementation of the mutex fastpath, based on NOP :-)
 5 *
 6 * This is used by the mutex-debugging infrastructure, but it can also
 7 * be used by architectures that (for whatever reason) want to use the
 8 * spinlock based slowpath.
 9 */
10#ifndef _ASM_GENERIC_MUTEX_NULL_H
11#define _ASM_GENERIC_MUTEX_NULL_H
12
13#define __mutex_fastpath_lock(count, fail_fn)		fail_fn(count)
14#define __mutex_fastpath_lock_retval(count, fail_fn)	fail_fn(count)
15#define __mutex_fastpath_unlock(count, fail_fn)		fail_fn(count)
16#define __mutex_fastpath_trylock(count, fail_fn)	fail_fn(count)
17#define __mutex_slowpath_needs_to_unlock()		1
18
19#endif