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v0.8.1
https://github.com/torvalds/linux
02 December 2023, 22:23:51 UTC
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Tip revision: 7877cb91f1081754a1487c144d85dc0d2e2e7fc4 authored by Linus Torvalds on 28 May 2023, 11:49:00 UTC
Linux 6.4-rc4
Tip revision: 7877cb9
fence.h 
#ifndef _ASM_RISCV_FENCE_H
#define _ASM_RISCV_FENCE_H

#ifdef CONFIG_SMP
#define RISCV_ACQUIRE_BARRIER		"\tfence r , rw\n"
#define RISCV_RELEASE_BARRIER		"\tfence rw,  w\n"
#else
#define RISCV_ACQUIRE_BARRIER
#define RISCV_RELEASE_BARRIER
#endif

#endif	/* _ASM_RISCV_FENCE_H */
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