linux/arch/um/sys-i386/shared/sysdep/barrier.h

10 lines
281 B
C

#ifndef __SYSDEP_I386_BARRIER_H
#define __SYSDEP_I386_BARRIER_H
/* Copied from include/asm-i386 for use by userspace. i386 has the option
* of using mfence, but I'm just using this, which works everywhere, for now.
*/
#define mb() asm volatile("lock; addl $0,0(%esp)")
#endif