1 #ifndef __SYSDEP_I386_BARRIER_H
2 #define __SYSDEP_I386_BARRIER_H
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.
7 #define mb() asm volatile("lock; addl $0,0(%esp)")