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von raredesign | Dez 3, 2019 | Allgemein | 0 Kommentare

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Current Path : /proc/self/root/lib/modules/3.2.0-4-amd64/source/include/asm-generic/

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Current File : //proc/self/root/lib/modules/3.2.0-4-amd64/source/include/asm-generic/cmpxchg.h

#ifndef __ASM_GENERIC_CMPXCHG_H
#define __ASM_GENERIC_CMPXCHG_H

/*
 * Generic cmpxchg
 *
 * Uses the local cmpxchg. Does not support SMP.
 */
#ifdef CONFIG_SMP
#error "Cannot use generic cmpxchg on SMP"
#endif

/*
 * Atomic compare and exchange.
 *
 * Do not define __HAVE_ARCH_CMPXCHG because we want to use it to check whether
 * a cmpxchg primitive faster than repeated local irq save/restore exists.
 */
#define cmpxchg(ptr, o, n)	cmpxchg_local((ptr), (o), (n))
#define cmpxchg64(ptr, o, n)	cmpxchg64_local((ptr), (o), (n))

#endif

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