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v0.8.1
https://github.com/torvalds/linux
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Tip revision: 8124c8a6b35386f73523d27eacb71b5364a68c4c authored by Linus Torvalds on 30 May 2021, 21:58:25 UTC
Linux 5.13-rc4
Tip revision: 8124c8a
barrier.h
#ifndef LIBURING_BARRIER_H
#define LIBURING_BARRIER_H

#if defined(__x86_64) || defined(__i386__)
#define read_barrier()	__asm__ __volatile__("":::"memory")
#define write_barrier()	__asm__ __volatile__("":::"memory")
#else
/*
 * Add arch appropriate definitions. Be safe and use full barriers for
 * archs we don't have support for.
 */
#define read_barrier()	__sync_synchronize()
#define write_barrier()	__sync_synchronize()
#endif

#endif
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