mdb_page_spill(): Fix nested txn mt_dirty_room

diff --git a/libraries/liblmdb/mdb.c b/libraries/liblmdb/mdb.c
index 640419c6e746cd9495054977e9bc5639b4c950f4..c6a7359a0478624fd59edd36448a6d50511147bc 100644 (file)
--- a/libraries/liblmdb/mdb.c
+++ b/libraries/liblmdb/mdb.c
@@ -1530,13 +1530,13 @@ mdb_page_spill(MDB_cursor *m0, MDB_val *key, MDB_val *data)
 done:
        if (rc == 0) {
                if (txn->mt_parent) {
-                       MDB_txn *tx2;
-                       pgno_t pgno = dl[i].mid;
                        txn->mt_dirty_room = txn->mt_parent->mt_dirty_room - dl[0].mid;
                        /* dirty pages that are dirty in an ancestor don't
                         * count against this txn's dirty_room.
                         */
                        for (i=1; i<=dl[0].mid; i++) {
+                               pgno_t pgno = dl[i].mid;
+                               MDB_txn *tx2;
                                for (tx2 = txn->mt_parent; tx2; tx2 = tx2->mt_parent) {
                                        j = mdb_mid2l_search(tx2->mt_u.dirty_list, pgno);
                                        if (j <= tx2->mt_u.dirty_list[0].mid &&