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lib
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modules
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4.4.0-1128-aws
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build
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arch
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arm
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include
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asm
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Filename :
mutex.h
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/* * arch/arm/include/asm/mutex.h * * ARM optimized mutex locking primitives * * Please look into asm-generic/mutex-xchg.h for a formal definition. */ #ifndef _ASM_MUTEX_H #define _ASM_MUTEX_H /* * On pre-ARMv6 hardware this results in a swp-based implementation, * which is the most efficient. For ARMv6+, we have exclusive memory * accessors and use atomic_dec to avoid the extra xchg operations * on the locking slowpaths. */ #if __LINUX_ARM_ARCH__ < 6 #include <asm-generic/mutex-xchg.h> #else #include <asm-generic/mutex-dec.h> #endif #endif /* _ASM_MUTEX_H */