-#ifndef __NR_async_exec
-#define __NR_async_exec 325
-#define __NR_async_wait 326
-#define __NR_umem_add 327
-#define __NR_async_thread 328
-#endif
+static inline void do_cpuid(unsigned int *eax, unsigned int *ebx,
+ unsigned int *ecx, unsigned int *edx)
+{
+ asm volatile("xchgl %%ebx, %1\ncpuid\nxchgl %%ebx, %1"
+ : "=a" (*eax), "=r" (*ebx), "=c" (*ecx), "=d" (*edx)
+ : "0" (*eax)
+ : "memory");
+}