x86, um: trim the junk from uml ptrace-*.h
[linux-2.6/linux-acpi-2.6/ibm-acpi-2.6.git] / arch / um / include / shared / sysdep-x86_64 / barrier.h
blob7b610befdc8f3521bd13c598034847fc1d680616
1 #ifndef __SYSDEP_X86_64_BARRIER_H
2 #define __SYSDEP_X86_64_BARRIER_H
4 /* Copied from include/asm-x86_64 for use by userspace. */
5 #define mb() asm volatile("mfence":::"memory")
7 #endif