crimson/onode-staged-tree: fix Cursor operator==

Signed-off-by: Yingxin Cheng <[email protected]>

src/crimson/os/seastore/onode_manager/staged-fltree/tree.h

@@ -93,8 +93,8 @@ class Btree {
     bool operator>=(const Cursor& o) const { return (int)compare_to(o) >= 0; }
     bool operator<(const Cursor& o) const { return (int)compare_to(o) < 0; }
     bool operator<=(const Cursor& o) const { return (int)compare_to(o) <= 0; }
-    bool operator==(const Cursor& o) const { return (int)compare_to(o) != 0; }
-    bool operator!=(const Cursor& o) const { return (int)compare_to(o) == 0; }
+    bool operator==(const Cursor& o) const { return (int)compare_to(o) == 0; }
+    bool operator!=(const Cursor& o) const { return (int)compare_to(o) != 0; }
 
     btree_future<Cursor> get_next(Transaction& t) {
       assert(!is_end());

src/crimson/os/seastore/onode_manager/staged-fltree/tree_utils.h

@@ -285,8 +285,9 @@ class TreeBuilder {
 #ifndef NDEBUG
         auto [key, value] = kv_iter.get_kv();
         Values::validate_cursor(cursor, key, value);
-        return tree->lower_bound(t, key
+        return tree->find(t, key
         ).safe_then([this, cursor](auto cursor_) mutable {
+          assert(!cursor_.is_end());
           auto [key, value] = kv_iter.get_kv();
           ceph_assert(cursor_.get_ghobj() == key);
           ceph_assert(cursor_.value() == cursor.value());
@@ -315,7 +316,7 @@ class TreeBuilder {
             assert(c_iter != cursors->end());
             auto [k, v] = kv_iter.get_kv();
             // validate values in tree keep intact
-            return tree->lower_bound(t, k).safe_then([this, &c_iter](auto cursor) {
+            return tree->find(t, k).safe_then([this, &c_iter](auto cursor) {
               auto [k, v] = kv_iter.get_kv();
               Values::validate_cursor(cursor, k, v);
               // validate values in cursors keep intact
@@ -349,7 +350,7 @@ class TreeBuilder {
       auto iter = kvs.begin();
       while (!iter.is_end()) {
         auto [k, v] = iter.get_kv();
-        auto cursor = tree->lower_bound(t, k).unsafe_get0();
+        auto cursor = tree->find(t, k).unsafe_get0();
         Values::validate_cursor(cursor, k, v);
         ++iter;
       }

src/test/crimson/seastore/onode_tree/test_staged_fltree.cc

@@ -216,7 +216,8 @@ TEST_F(b_dummy_tree_test_t, 3_random_insert_leaf_node)
       ceph_assert(cursor.get_ghobj() == key);
       Values::initialize_cursor(t, cursor, value);
       insert_history.emplace_back(key, value, cursor);
-      auto cursor_ = tree.lower_bound(t, key).unsafe_get0();
+      auto cursor_ = tree.find(t, key).unsafe_get0();
+      ceph_assert(cursor_ != tree.end());
       ceph_assert(cursor_.value() == cursor.value());
       Values::validate_cursor(cursor_, key, value);
       return cursor.value();
@@ -327,7 +328,8 @@ TEST_F(b_dummy_tree_test_t, 3_random_insert_leaf_node)
 
     for (auto& [k, v, c] : insert_history) {
       // validate values in tree keep intact
-      auto cursor = tree.lower_bound(t, k).unsafe_get0();
+      auto cursor = tree.find(t, k).unsafe_get0();
+      EXPECT_NE(cursor, tree.end());
       Values::validate_cursor(cursor, k, v);
       // validate values in cursors keep intact
       Values::validate_cursor(c, k, v);
@@ -472,10 +474,12 @@ class TestTree {
       EXPECT_EQ(tree_clone.height(t_clone).unsafe_get0(), 2);
 
       for (auto& [k, v, c] : insert_history) {
-        auto result = tree_clone.lower_bound(t_clone, k).unsafe_get0();
+        auto result = tree_clone.find(t_clone, k).unsafe_get0();
+        EXPECT_NE(result, tree_clone.end());
         Values::validate_cursor(result, k, v);
       }
-      auto result = tree_clone.lower_bound(t_clone, key).unsafe_get0();
+      auto result = tree_clone.find(t_clone, key).unsafe_get0();
+      EXPECT_NE(result, tree_clone.end());
       Values::validate_cursor(result, key, value);
       EXPECT_TRUE(last_split.match(expected));
     });