---
name: "seq_hlist_next_rcu"
section: "9"
platform: "linux"
package: "linux-manual-4.9"
version: "4.9.228-1"
release: "Debian 9 (Stretch)"
platforms: ["linux"]
url: "https://new.carta.tech/seq_hlist_next_rcu"
---

# seq\_hlist\_next\_rcu(9)

move to the next position of the hlist protected by RCU

## 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**.

## COPYRIGHT