x86/xen: Introduce atomic_readandclear_xen_ulong

diff --git a/sys/x86/include/xen/xen-os.h b/sys/x86/include/xen/xen-os.h
index fe6ebc52a673978fda2a85a99d6428f2c8e4f65e..4c81af45eb45770c9d31f1a0f1dd24a76b7add29 100644 (file)
--- a/sys/x86/include/xen/xen-os.h
+++ b/sys/x86/include/xen/xen-os.h
@@ -71,6 +71,8 @@ cpu_to_vcpu_id(u_int cpuid)
        return (pcpu_find(cpu)->pc_vcpu_id);
 }
 
+#define atomic_readandclear_xen_ulong(p) atomic_readandclear_long(p)
+
 #endif /* !__ASSEMBLY__ */
 
 #endif /* _MACHINE_X86_XEN_XEN_OS_H_ */