+static int thread_lookup_test(struct thread_data *tdata)
+{
+ int i, err = 0;
+
+ for (i = 0; i < entries; i++) {
+ struct test_obj *obj;
+ int key = (tdata->id << 16) | i;
+
+ obj = rhashtable_lookup_fast(&ht, &key, test_rht_params);
+ if (obj && (tdata->objs[i].value == TEST_INSERT_FAIL)) {
+ pr_err(" found unexpected object %d\n", key);
+ err++;
+ } else if (!obj && (tdata->objs[i].value != TEST_INSERT_FAIL)) {
+ pr_err(" object %d not found!\n", key);
+ err++;
+ } else if (obj && (obj->value != key)) {
+ pr_err(" wrong object returned (got %d, expected %d)\n",
+ obj->value, key);
+ err++;
+ }
+ }
+ return err;
+}
+
+static int threadfunc(void *data)
+{
+ int i, step, err = 0, insert_fails = 0;
+ struct thread_data *tdata = data;
+
+ up(&prestart_sem);
+ if (down_interruptible(&startup_sem))
+ pr_err(" thread[%d]: down_interruptible failed\n", tdata->id);
+
+ for (i = 0; i < entries; i++) {
+ tdata->objs[i].value = (tdata->id << 16) | i;
+ err = rhashtable_insert_fast(&ht, &tdata->objs[i].node,
+ test_rht_params);
+ if (err == -ENOMEM || err == -EBUSY) {
+ tdata->objs[i].value = TEST_INSERT_FAIL;
+ insert_fails++;
+ } else if (err) {
+ pr_err(" thread[%d]: rhashtable_insert_fast failed\n",
+ tdata->id);
+ goto out;
+ }
+ }
+ if (insert_fails)
+ pr_info(" thread[%d]: %d insert failures\n",
+ tdata->id, insert_fails);
+
+ err = thread_lookup_test(tdata);
+ if (err) {
+ pr_err(" thread[%d]: rhashtable_lookup_test failed\n",
+ tdata->id);
+ goto out;
+ }
+
+ for (step = 10; step > 0; step--) {
+ for (i = 0; i < entries; i += step) {
+ if (tdata->objs[i].value == TEST_INSERT_FAIL)
+ continue;
+ err = rhashtable_remove_fast(&ht, &tdata->objs[i].node,
+ test_rht_params);
+ if (err) {
+ pr_err(" thread[%d]: rhashtable_remove_fast failed\n",
+ tdata->id);
+ goto out;
+ }
+ tdata->objs[i].value = TEST_INSERT_FAIL;
+ }
+ err = thread_lookup_test(tdata);
+ if (err) {
+ pr_err(" thread[%d]: rhashtable_lookup_test (2) failed\n",
+ tdata->id);
+ goto out;
+ }
+ }
+out:
+ while (!kthread_should_stop()) {
+ set_current_state(TASK_INTERRUPTIBLE);
+ schedule();
+ }
+ return err;
+}
+