8 extern int fallocate(int fd, int mode, off_t offset, off_t len);
9 extern int posix_fallocate(int fd, off_t offset, off_t len);
10 #ifndef CONFIG_SYNC_FILE_RANGE
11 extern int sync_file_range(int fd, uint64_t offset, uint64_t nbytes,
14 extern int posix_fadvise(int fd, off_t offset, off_t len, int advice);
16 #endif /* FIO_HELPERS_H_ */