#define nop __asm__ __volatile__("rep;nop": : :"memory")
#define read_barrier() asm volatile ("": : :"memory")
-static inline unsigned long fio_ffz(unsigned long bitmask)
-{
- __asm__("bsfl %1,%0" :"=r" (bitmask) :"r" (~bitmask));
- return bitmask;
-}
-
#endif