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aa7bd94249
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk> Signed-off-by: H. Peter Anvin <hpa@zytor.com>
7 lines
184 B
C
7 lines
184 B
C
#ifndef __SYSDEP_X86_64_BARRIER_H
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#define __SYSDEP_X86_64_BARRIER_H
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/* Copied from include/asm-x86_64 for use by userspace. */
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#define mb() asm volatile("mfence":::"memory")
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#endif
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