6 int sync_file_range(int fd, off_t pos, off_t len, unsigned flags)
8 #if defined(SYS_sync_file_range2)
9 return syscall(SYS_sync_file_range2, fd, flags,
10 __SYSCALL_LL_E(pos), __SYSCALL_LL_E(len));
11 #elif defined(SYS_sync_file_range)
12 return syscall(SYS_sync_file_range, fd,
13 __SYSCALL_LL_O(pos), __SYSCALL_LL_E(len), flags);
15 return __syscall_ret(-ENOSYS);