/arch/um/sys-i386/shared/sysdep/barrier.h
C Header | 9 lines | 4 code | 2 blank | 3 comment | 0 complexity | abd316f38538ea29e00a9fa6e6775c81 MD5 | raw file
Possible License(s): LGPL-2.0, AGPL-1.0, GPL-2.0
1#ifndef __SYSDEP_I386_BARRIER_H
2#define __SYSDEP_I386_BARRIER_H
3
4/* Copied from include/asm-i386 for use by userspace. i386 has the option
5 * of using mfence, but I'm just using this, which works everywhere, for now.
6 */
7#define mb() asm volatile("lock; addl $0,0(%esp)")
8
9#endif