+static struct workqueue_ops log_compress_wq_ops = {
+ .fn = gz_work,
+ .init_worker_fn = gz_init_worker,
+ .nice = 1,
+};
+
+int iolog_compress_init(struct thread_data *td)
+{
+ if (!(td->flags & TD_F_COMPRESS_LOG))
+ return 0;
+
+ workqueue_init(td, &td->log_compress_wq, &log_compress_wq_ops, 1);
+ return 0;
+}
+
+void iolog_compress_exit(struct thread_data *td)
+{
+ if (!(td->flags & TD_F_COMPRESS_LOG))
+ return;
+
+ workqueue_exit(&td->log_compress_wq);
+}
+
+/*
+ * Queue work item to compress the existing log entries. We copy the
+ * samples, and reset the log sample count to 0 (so the logging will
+ * continue to use the memory associated with the log). If called with
+ * wait == 1, will not return until the log compression has completed.
+ */