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) (-1) 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 20