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[UDP]: Cleanup /proc/udp[6] creation/removal. 

Replace seq_open with seq_open_net and remove udp_seq_release
completely.  seq_release_net will do this job just fine.

Signed-off-by: Denis V. Lunev <den@openvz.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Denis V. Lunev 2008-03-28 18:25:06 -07:00 committed by David S. Miller
parent dda61925f8
commit a2be75c182
1 changed files with 9 additions and 37 deletions
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46
net/ipv4/udp.c
View File

@ -1576,46 +1576,18 @@ static void udp_seq_stop(struct seq_file *seq, void *v)
static int udp_seq_open(struct inode *inode, struct file *file)
{
struct udp_seq_afinfo *afinfo = PDE(inode)->data;
struct seq_file *seq;
struct net *net;
int rc = -ENOMEM;
struct udp_iter_state *s = kzalloc(sizeof(*s), GFP_KERNEL);
struct udp_iter_state *s;
int err;
if (!s)
goto out;
rc = -ENXIO;
net = get_proc_net(inode);
if (!net)
goto out_kfree;
err = seq_open_net(inode, file, &afinfo->seq_ops,
sizeof(struct udp_iter_state));
if (err < 0)
return err;
s = ((struct seq_file *)file->private_data)->private;
s->family = afinfo->family;
s->hashtable = afinfo->hashtable;
s->p.net = net;
rc = seq_open(file, &afinfo->seq_ops);
if (rc)
goto out_put_net;
seq = file->private_data;
seq->private = s;
out:
return rc;
out_put_net:
put_net(net);
out_kfree:
kfree(s);
goto out;
}
static int udp_seq_release(struct inode *inode, struct file *file)
{
struct seq_file *seq = file->private_data;
struct udp_iter_state *s = seq->private;
put_net(s->p.net);
seq_release_private(inode, file);
return 0;
return err;
}
/* ------------------------------------------------------------------------ */
@ -1628,7 +1600,7 @@ int udp_proc_register(struct net *net, struct udp_seq_afinfo *afinfo)
afinfo->seq_fops->open = udp_seq_open;
afinfo->seq_fops->read = seq_read;
afinfo->seq_fops->llseek = seq_lseek;
afinfo->seq_fops->release = udp_seq_release;
afinfo->seq_fops->release = seq_release_net;
afinfo->seq_ops.start = udp_seq_start;
afinfo->seq_ops.next = udp_seq_next;