- if (unlikely(defer_queue.last_fct_in != fct)) {
- defer_queue.last_fct_in = fct;
- if (unlikely(DQ_IS_FCT_BIT(fct) || fct == DQ_FCT_MARK)) {
- /*
- * If the function to encode is not aligned or the
- * marker, write DQ_FCT_MARK followed by the function
- * pointer.
- */
- _CMM_STORE_SHARED(defer_queue.q[head++ & DEFER_QUEUE_MASK],
+ /*
+ * Encode:
+ * if the function is not changed and the data is aligned and it is
+ * not the marker:
+ * store the data
+ * otherwise if the function is aligned and its not the marker:
+ * store the function with DQ_FCT_BIT
+ * store the data
+ * otherwise:
+ * store the marker (DQ_FCT_MARK)
+ * store the function
+ * store the data
+ *
+ * Decode: see the comments before 'struct defer_queue'
+ * or the code in rcu_defer_barrier_queue().
+ */
+ if (caa_unlikely(URCU_TLS(defer_queue).last_fct_in != fct
+ || DQ_IS_FCT_BIT(p)
+ || p == DQ_FCT_MARK)) {
+ URCU_TLS(defer_queue).last_fct_in = fct;
+ if (caa_unlikely(DQ_IS_FCT_BIT(fct) || fct == DQ_FCT_MARK)) {
+ _CMM_STORE_SHARED(URCU_TLS(defer_queue).q[head++ & DEFER_QUEUE_MASK],