1SEQ_HLIST_START_HEAD(9)          The Linux VFS         SEQ_HLIST_START_HEAD(9)
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NAME

6       seq_hlist_start_head_rcu - start an iteration of a hlist protected by
7       RCU
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SYNOPSIS

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

14       head
15           the head of the hlist
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17       pos
18           the start position of the sequence
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DESCRIPTION

21       Called at seq_file->op->start. Call this function if you want to print
22       a header at the top of the output.
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24       This list-traversal primitive may safely run concurrently with the _rcu
25       list-mutation primitives such as hlist_add_head_rcu as long as the
26       traversal is guarded by rcu_read_lock.
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29Kernel Hackers Manual 3.10         June 2019           SEQ_HLIST_START_HEAD(9)
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