crimson/.../omap_btree_node_impl: fix complete flag for depth 2 omap list

Fixes: https://tracker.ceph.com/issues/72100

Signed-off-by: Chanyoung Park <[email protected]>

Author: kep-chaney-p

src/crimson/os/seastore/omap_manager/btree/omap_btree_node_impl.cc

@@ -353,6 +353,7 @@ OMapInnerNode::list(
             }
             result.merge(std::move(child_result));
 	    if (result.size() == config.max_result_size) {
+	      complete = child_complete;
 	      return list_iertr::make_ready_future<seastar::stop_iteration>(
 		seastar::stop_iteration::yes);
 	    }

src/test/crimson/seastore/test_omap_manager.cc

@@ -833,6 +833,34 @@ TEST_P(omap_manager_test_t, omap_iterate)
   });
 }
 
+TEST_P(omap_manager_test_t, full_range_list)
+{
+  run_async([this] {
+    omap_root_t omap_root = initialize();
+    std::optional<std::string> first = std::nullopt;
+    std::optional<std::string> last = std::nullopt;
+
+    auto full_range_list_and_log = [&](unsigned target_depth, std::string_view label) {
+      do {
+        auto t = create_mutate_transaction();
+        for (unsigned i = 0; i < 100; ++i) {
+          set_random_key(omap_root, *t);
+        }
+        submit_transaction(std::move(t));
+      } while (omap_root.depth < target_depth);
+
+      auto t = create_read_transaction();
+      logger().debug("[depth={}] {}", target_depth, label);
+      list(omap_root, *t, first, last, test_omap_mappings.size());
+    };
+
+    full_range_list_and_log(1, "full range list single leaf node");
+    full_range_list_and_log(2, "full range list single inner node with multiple leaf nodes");
+    // Skipped: covered by omap_manager_test_t.force_inner_node_split_list_rmkey_range.
+    // full_range_list_and_log(3, "full range list multiple inner and leaf nodes");
+  });
+}
+
 INSTANTIATE_TEST_SUITE_P(
   omap_manager_test,
   omap_manager_test_t,