Move to the next position of the hlist protected by rcu
struct hlist_node * seq_hlist_next_rcu(void * v, struct hlist_head * head, loff_t * ppos);
v
the current iterator
head
the head of the hlist
ppos
the current position
Called at seq_file->op->next.
This list-traversal primitive may safely run concurrently with the _rcu list-mutation primitives such as hlist_add_head_rcu as long as the traversal is guarded by rcu_read_lock.