closes #5822, don't grab point write lock if DB_PRELOCKED_WRITE is passed into...

closes #5822, don't grab point write lock if DB_PRELOCKED_WRITE is passed into dbenv->update_multiple

git-svn-id: file:///svn/toku/tokudb@48681 c7de825b-a66e-492c-adef-691d508d4ae1

src/ydb_write.cc

@@ -778,7 +778,7 @@ env_update_multiple(DB_ENV *env, DB *src_db, DB_TXN *txn,
                 if (r != 0) goto cleanup;
 
                 // lock new key
-                if (db->i->lt) {
+                if (db->i->lt && !(lock_flags[which_db] & DB_PRELOCKED_WRITE)) {
                     r = get_point_write_lock(db, txn, &curr_new_key);
                     if (r != 0) goto cleanup;
                 }