+static int __get_next_rand_offset_zipf(struct thread_data *td,
+ struct fio_file *f, enum fio_ddir ddir,
+ unsigned long long *b)
+{
+ *b = zipf_next(&f->zipf);
+ return 0;
+}
+
+static int __get_next_rand_offset_pareto(struct thread_data *td,
+ struct fio_file *f, enum fio_ddir ddir,
+ unsigned long long *b)
+{
+ *b = pareto_next(&f->zipf);
+ return 0;
+}
+
+static int get_next_rand_offset(struct thread_data *td, struct fio_file *f,
+ enum fio_ddir ddir, unsigned long long *b)
+{
+ if (td->o.random_distribution == FIO_RAND_DIST_RANDOM)
+ return __get_next_rand_offset(td, f, ddir, b);
+ else if (td->o.random_distribution == FIO_RAND_DIST_ZIPF)
+ return __get_next_rand_offset_zipf(td, f, ddir, b);
+ else if (td->o.random_distribution == FIO_RAND_DIST_PARETO)
+ return __get_next_rand_offset_pareto(td, f, ddir, b);
+
+ log_err("fio: unknown random distribution: %d\n", td->o.random_distribution);
+ return 1;
+}
+