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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: 37624b58542fb9f2d9a70e6ea006ef8a5f66c30b authored by Linus Torvalds on 29 April 2019, 00:04:13 UTC
Linux 5.1-rc7
Tip revision: 37624b5
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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