[linux-2.6-block.git] / arch / um / include / sysdep-i386 / barrier.h

#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
Commit	Line	Data
53b17332 JD	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