23 lines
537 B
C
23 lines
537 B
C
#ifndef __ASM_GENERIC_CMPXCHG_H
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#define __ASM_GENERIC_CMPXCHG_H
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/*
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* Generic cmpxchg
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*
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* Uses the local cmpxchg. Does not support SMP.
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*/
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#ifdef CONFIG_SMP
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#error "Cannot use generic cmpxchg on SMP"
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#endif
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/*
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* Atomic compare and exchange.
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*
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* Do not define __HAVE_ARCH_CMPXCHG because we want to use it to check whether
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* a cmpxchg primitive faster than repeated local irq save/restore exists.
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*/
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#define cmpxchg(ptr, o, n) cmpxchg_local((ptr), (o), (n))
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#define cmpxchg64(ptr, o, n) cmpxchg64_local((ptr), (o), (n))
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#endif
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