datapath: Backport simplified hlist iterators.

[sliver-openvswitch.git] / datapath / linux / compat / include / linux / rculist.h

diff --git a/datapath/linux/compat/include/linux/rculist.h b/datapath/linux/compat/include/linux/rculist.h
index 64e3905..fd9bf10 100644 (file)
--- a/datapath/linux/compat/include/linux/rculist.h
+++ b/datapath/linux/compat/include/linux/rculist.h
@@ -20,4 +20,12 @@ static inline void hlist_del_init_rcu(struct hlist_node *n)
 }
 #endif
 
+#undef hlist_for_each_entry_rcu
+#define hlist_for_each_entry_rcu(pos, head, member)                    \
+       for (pos = hlist_entry_safe (rcu_dereference_raw(hlist_first_rcu(head)),\
+                       typeof(*(pos)), member);                        \
+               pos;                                                    \
+               pos = hlist_entry_safe(rcu_dereference_raw(hlist_next_rcu(\
+                       &(pos)->member)), typeof(*(pos)), member))
+
 #endif