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 95f30747d51a6b19bc09b732cd66ab2835323755..8f42e862c07978f9cf2216d77643801a5d55a60b 100644 (file)
--- a/sys/x86/include/xen/xen-os.h
+++ b/sys/x86/include/xen/xen-os.h
@@ -79,6 +79,8 @@ cpu_to_vcpu_id(u_int cpuid)
        return (pcpu_find(cpuid)->pc_vcpu_id);
 }
 
+#define atomic_readandclear_xen_ulong(p) atomic_readandclear_long(p)
+
 #endif /* !__ASSEMBLY__ */
 
 #endif /* _MACHINE_X86_XEN_XEN_OS_H_ */