SEQ_HLIST_START_RCU(9)                    The Linux VFS                    SEQ_HLIST_START_RCU(9)



NAME
       seq_hlist_start_rcu - start an iteration of a hlist protected by RCU

SYNOPSIS
       struct hlist_node * seq_hlist_start_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.

       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
Kernel Hackers Manual 4.8.                 January 2017                    SEQ_HLIST_START_RCU(9)