aa7bd94249
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk> Signed-off-by: H. Peter Anvin <hpa@zytor.com>
9 lines
281 B
C
9 lines
281 B
C
#ifndef __SYSDEP_I386_BARRIER_H
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#define __SYSDEP_I386_BARRIER_H
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/* Copied from include/asm-i386 for use by userspace. i386 has the option
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* of using mfence, but I'm just using this, which works everywhere, for now.
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*/
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#define mb() asm volatile("lock; addl $0,0(%esp)")
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#endif
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