diff options
| -rw-r--r-- | drivers/net/pppol2tp.c | 48 |
1 files changed, 5 insertions, 43 deletions
diff --git a/drivers/net/pppol2tp.c b/drivers/net/pppol2tp.c index 056e22a784b8..15f4a43a6890 100644 --- a/drivers/net/pppol2tp.c +++ b/drivers/net/pppol2tp.c @@ -2371,7 +2371,7 @@ end: #include <linux/seq_file.h> struct pppol2tp_seq_data { - struct net *seq_net; /* net of inode */ + struct seq_net_private p; struct pppol2tp_tunnel *tunnel; /* current tunnel */ struct pppol2tp_session *session; /* NULL means get first session in tunnel */ }; @@ -2436,7 +2436,7 @@ static void *pppol2tp_seq_start(struct seq_file *m, loff_t *offs) BUG_ON(m->private == NULL); pd = m->private; - pn = pppol2tp_pernet(pd->seq_net); + pn = pppol2tp_pernet(seq_file_net(m)); if (pd->tunnel == NULL) { if (!list_empty(&pn->pppol2tp_tunnel_list)) @@ -2558,46 +2558,8 @@ static const struct seq_operations pppol2tp_seq_ops = { */ static int pppol2tp_proc_open(struct inode *inode, struct file *file) { - struct seq_file *m; - struct pppol2tp_seq_data *pd; - struct net *net; - int ret = 0; - - ret = seq_open(file, &pppol2tp_seq_ops); - if (ret < 0) - goto out; - - m = file->private_data; - - /* Allocate and fill our proc_data for access later */ - ret = -ENOMEM; - m->private = kzalloc(sizeof(*pd), GFP_KERNEL); - if (m->private == NULL) - goto out; - - pd = m->private; - net = maybe_get_net(PDE_NET(PDE(inode))); - BUG_ON(!net); - pd->seq_net = net; - return 0; - -out: - return ret; -} - -/* Called when /proc file access completes. - */ -static int pppol2tp_proc_release(struct inode *inode, struct file *file) -{ - struct seq_file *m = (struct seq_file *)file->private_data; - struct pppol2tp_seq_data *pd = m->private; - - put_net(pd->seq_net); - - kfree(m->private); - m->private = NULL; - - return seq_release(inode, file); + return seq_open_net(inode, file, &pppol2tp_seq_ops, + sizeof(struct pppol2tp_seq_data)); } static const struct file_operations pppol2tp_proc_fops = { @@ -2605,7 +2567,7 @@ static const struct file_operations pppol2tp_proc_fops = { .open = pppol2tp_proc_open, .read = seq_read, .llseek = seq_lseek, - .release = pppol2tp_proc_release, + .release = seq_release_net, }; #endif /* CONFIG_PROC_FS */ |