Name

seq_hlist_next_rcu — move to the next position of the hlist protected by RCU

Synopsis

struct hlist_node * seq_hlist_next_rcu (void * v,
 struct hlist_head * head,
 loff_t * ppos);
 

Arguments

v

the current iterator

head

the head of the hlist

ppos

the current position

Description

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.