6#define ROUND_UP(val, round_to) (((val) + (round_to - 1)) & ~(round_to - 1)) 
    8int libfuse_strtol(
const char *str, 
long *res);
 
   13static inline uint32_t fuse_lower_32_bits(uint64_t nr)
 
   15        return (uint32_t)(nr & 0xffffffff);
 
   21static inline uint64_t fuse_higher_32_bits(uint64_t nr)
 
   23        return nr & ~0xffffffffULL;
 
   26#ifndef FUSE_VAR_UNUSED 
   27#define FUSE_VAR_UNUSED(var) (__attribute__((unused)) var)