Add some tolerance to no-gil immortality

markshannon · markshannon · commit 490cf8daeaac · 2025-03-12T10:19:54.000Z
diff --git a/Include/refcount.h b/Include/refcount.h
@@ -294,7 +294,7 @@ static inline Py_ALWAYS_INLINE void Py_INCREF(PyObject *op)
     }
     op->ob_refcnt = cur_refcnt + 1;
 #else
-    if (_Py_IsImmortal(op)) {
+    if (op->ob_refcnt >= _Py_IMMORTAL_INITIAL_REFCNT) {
         _Py_INCREF_IMMORTAL_STAT_INC();
         return;
     }

Original file line number	Diff line number	Diff line change
`@@ -294,7 +294,7 @@ static inline Py_ALWAYS_INLINE void Py_INCREF(PyObject *op)`
`294`	`294`	`}`
`295`	`295`	`op->ob_refcnt = cur_refcnt + 1;`
`296`	`296`	`#else`
`297`		`- if (_Py_IsImmortal(op)) {`
	`297`	`+ if (op->ob_refcnt >= _Py_IMMORTAL_INITIAL_REFCNT) {`
`298`	`298`	`_Py_INCREF_IMMORTAL_STAT_INC();`
`299`	`299`	`return;`
`300`	`300`	`}`