/** LRU list of objects with fence regs on them. */
struct list_head fence_list;
+ /**
+ * List of objects currently pending being freed.
+ *
+ * These objects are no longer in use, but due to a signal
+ * we were prevented from freeing them at the appointed time.
+ */
+ struct list_head deferred_free_list;
+
/**
* We leave the user IRQ off as much as possible,
* but this means that requests will finish and never