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/* * include/asm-generic/mutex-null.h * * Generic implementation of the mutex fastpath, based on NOP :-) * * This is used by the mutex-debugging infrastructure, but it can also * be used by architectures that (for whatever reason) want to use the * spinlock based slowpath. */ #ifndef _ASM_GENERIC_MUTEX_NULL_H #define _ASM_GENERIC_MUTEX_NULL_H #define __mutex_fastpath_lock(count, fail_fn) fail_fn(count) #define __mutex_fastpath_lock_retval(count) (-1) #define __mutex_fastpath_unlock(count, fail_fn) fail_fn(count) #define __mutex_fastpath_trylock(count, fail_fn) fail_fn(count) #define __mutex_slowpath_needs_to_unlock() 1 #endif