2 * include/asm-generic/mutex-null.h
4 * Generic implementation of the mutex fastpath, based on NOP :-)
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.
10 #ifndef _ASM_GENERIC_MUTEX_NULL_H
11 #define _ASM_GENERIC_MUTEX_NULL_H
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
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