elem->prev->next = elem->next;
}
+/*
+ * Get first element from a RCU hlist. Assumes the hlist is not empty.
+ * This must be done while rcu_read_lock() is held.
+ */
+#define cds_hlist_first_rcu(ptr, type) \
+ rcu_dereference((ptr)->next)
+
+/*
+ * Get first entry from a RCU hlist. Assumes the hlist is not empty.
+ * This must be done while rcu_read_lock() is held.
+ */
+#define cds_hlist_first_entry_rcu(ptr, type, member) \
+ cds_hlist_entry(rcu_dereference((ptr)->next), type, member)
-/* Iterate through elements of the list.
+/*
+ * Iterate through nodes of the list.
+ * This must be done while rcu_read_lock() is held.
+ */
+
+#define cds_hlist_for_each_rcu(pos, head) \
+ for (pos = rcu_dereference((head)->next); \
+ pos != NULL; \
+ pos = rcu_dereference((pos)->next))
+
+/*
+ * Iterate through elements of the list.
* This must be done while rcu_read_lock() is held.
*/
#define cds_hlist_for_each_entry_rcu(entry, pos, head, member) \
for (pos = rcu_dereference((head)->next), \
- entry = cds_hlist_entry(pos, typeof(*entry), member); \
+ entry = cds_hlist_entry(pos, __typeof__(*entry), member); \
pos != NULL; \
pos = rcu_dereference(pos->next), \
- entry = cds_hlist_entry(pos, typeof(*entry), member))
+ entry = cds_hlist_entry(pos, __typeof__(*entry), member))
#endif /* _URCU_RCUHLIST_H */