seq_hlist_next_rcu (9) Linux Manual Page
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.