+#if (BITS_PER_LONG < 64)
+static inline int rcu_gp_ongoing(unsigned long *value)
+{
+ unsigned long reader_gp;
+
+ if (value == NULL)
+ return 0;
+ reader_gp = LOAD_SHARED(*value);
+ return reader_gp && ((reader_gp ^ urcu_gp_ctr) & RCU_GP_CTR);
+}
+#else /* !(BITS_PER_LONG < 64) */