proc: introduce proc_create_single{,_data}
Variants of proc_create{,_data} that directly take a seq_file show
callback and drastically reduces the boilerplate code in the callers.
All trivial callers converted over.
Signed-off-by: Christoph Hellwig <hch@lst.de>
diff --git a/net/ipv4/route.c b/net/ipv4/route.c
index 29268ef..49f5f3e 100644
--- a/net/ipv4/route.c
+++ b/net/ipv4/route.c
@@ -360,18 +360,6 @@ static int rt_acct_proc_show(struct seq_file *m, void *v)
kfree(dst);
return 0;
}
-
-static int rt_acct_proc_open(struct inode *inode, struct file *file)
-{
- return single_open(file, rt_acct_proc_show, NULL);
-}
-
-static const struct file_operations rt_acct_proc_fops = {
- .open = rt_acct_proc_open,
- .read = seq_read,
- .llseek = seq_lseek,
- .release = single_release,
-};
#endif
static int __net_init ip_rt_do_proc_init(struct net *net)
@@ -389,7 +377,8 @@ static int __net_init ip_rt_do_proc_init(struct net *net)
goto err2;
#ifdef CONFIG_IP_ROUTE_CLASSID
- pde = proc_create("rt_acct", 0, net->proc_net, &rt_acct_proc_fops);
+ pde = proc_create_single("rt_acct", 0, net->proc_net,
+ rt_acct_proc_show);
if (!pde)
goto err3;
#endif