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net: packet: use seq_hlist_foo() helpers 

Simplify seq_file code.

Signed-off-by: Li Zefan <lizf@cn.fujitsu.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Li Zefan 2010-02-08 23:19:29 +00:00 committed by David S. Miller
parent b999748acc
commit b7ceabd9b5
1 changed files with 3 additions and 17 deletions
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20
net/packet/af_packet.c
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@ -2510,33 +2510,19 @@ static struct notifier_block packet_netdev_notifier = {
};
#ifdef CONFIG_PROC_FS
static inline struct sock *packet_seq_idx(struct net *net, loff_t off)
{
struct sock *s;
struct hlist_node *node;
sk_for_each(s, node, &net->packet.sklist) {
if (!off--)
return s;
}
return NULL;
}
static void *packet_seq_start(struct seq_file *seq, loff_t *pos)
__acquires(seq_file_net(seq)->packet.sklist_lock)
{
struct net *net = seq_file_net(seq);
read_lock(&net->packet.sklist_lock);
return *pos ? packet_seq_idx(net, *pos - 1) : SEQ_START_TOKEN;
return seq_hlist_start_head(&net->packet.sklist, *pos);
}
static void *packet_seq_next(struct seq_file *seq, void *v, loff_t *pos)
{
struct net *net = seq_file_net(seq);
++*pos;
return (v == SEQ_START_TOKEN)
? sk_head(&net->packet.sklist)
: sk_next((struct sock *)v) ;
return seq_hlist_next(v, &net->packet.sklist, pos);
}
static void packet_seq_stop(struct seq_file *seq, void *v)
@ -2551,7 +2537,7 @@ static int packet_seq_show(struct seq_file *seq, void *v)
if (v == SEQ_START_TOKEN)
seq_puts(seq, "sk RefCnt Type Proto Iface R Rmem User Inode\n");
else {
struct sock *s = v;
struct sock *s = sk_entry(v);
const struct packet_sock *po = pkt_sk(s);
seq_printf(seq,