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https://github.com/checkpoint-restore/criu.git
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70833bcf29
Acked-by: Mike Rapoport <rppt@linux.ibm.com> Signed-off-by: Adrian Reber <areber@redhat.com>
22 lines
494 B
C
22 lines
494 B
C
#ifndef __UTILS_H__
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#define __UTILS_H__
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#define kernel_uses_llsc 1
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typedef struct {
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int counter;
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} atomic_t;
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/*
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* FIXME: detect with compel_cpu_has_feature() if LL/SC implicitly
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* provide a memory barrier.
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*/
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#define __WEAK_LLSC_MB " sync \n"
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#define smp_llsc_mb() __asm__ __volatile__(__WEAK_LLSC_MB : : : "memory")
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#define smp_mb__before_llsc() smp_llsc_mb()
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#define smp_mb__before_atomic() smp_mb__before_llsc()
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#define smp_mb__after_atomic() smp_llsc_mb()
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#endif /* __UTILS_H__ */
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