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.
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