extern int fallocate(int fd, int mode, off_t offset, off_t len);
extern int posix_fallocate(int fd, off_t offset, off_t len);
-extern int sync_file_range(int fd, off64_t offset, off64_t nbytes,
+#ifndef CONFIG_SYNC_FILE_RANGE
+extern int sync_file_range(int fd, uint64_t offset, uint64_t nbytes,
unsigned int flags);
+#endif
extern int posix_fadvise(int fd, off_t offset, off_t len, int advice);
#endif /* FIO_HELPERS_H_ */