/* generate a list of extant and dead calls in /proc/net/rxrpc_calls  */
static void* rxrpc_call_seq_start(struct seq_file *seq, loff_t *_pos)
/* generate a list of extant and dead calls in /proc/net/rxrpc_calls  */
static void* rxrpc_call_seq_start(struct seq_file *seq, loff_t *_pos)
{
	read_lock(&rxrpc_call_lock);
	return seq_list_start_head(&rxrpc_calls, *_pos);
}