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