seq_hlist_start_head_rcu (9) - Linux Manuals

seq_hlist_start_head_rcu: start an iteration of a hlist protected by RCU

Command to display seq_hlist_start_head_rcu manual in Linux: $ man 9 seq_hlist_start_head_rcu

NAME

seq_hlist_start_head_rcu - start an iteration of a hlist protected by RCU

SYNOPSIS

struct hlist_node * seq_hlist_start_head_rcu(struct hlist_head * head, loff_t pos);

ARGUMENTS

head

: the head of the hlist

pos

: the start position of the sequence

DESCRIPTION

Called at seq_file->op->start. Call this function if you want to print a header at the top of the output.

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.