proc: introduce proc_create_net_single
Variant of proc_create_data that directly take a seq_file show
callback and deals with network namespaces in ->open and ->release.
All callers of proc_create + single_open_net converted over, and
single_{open,release}_net are removed entirely.
Signed-off-by: Christoph Hellwig <hch@lst.de>
diff --git a/net/ipv6/route.c b/net/ipv6/route.c
index 527b9b6..a659876 100644
--- a/net/ipv6/route.c
+++ b/net/ipv6/route.c
@@ -4876,18 +4876,6 @@ static int rt6_stats_seq_show(struct seq_file *seq, void *v)
return 0;
}
-
-static int rt6_stats_seq_open(struct inode *inode, struct file *file)
-{
- return single_open_net(inode, file, rt6_stats_seq_show);
-}
-
-static const struct file_operations rt6_stats_seq_fops = {
- .open = rt6_stats_seq_open,
- .read = seq_read,
- .llseek = seq_lseek,
- .release = single_release_net,
-};
#endif /* CONFIG_PROC_FS */
#ifdef CONFIG_SYSCTL
@@ -5094,7 +5082,8 @@ static int __net_init ip6_route_net_init_late(struct net *net)
#ifdef CONFIG_PROC_FS
proc_create_net("ipv6_route", 0, net->proc_net, &ipv6_route_seq_ops,
sizeof(struct ipv6_route_iter));
- proc_create("rt6_stats", 0444, net->proc_net, &rt6_stats_seq_fops);
+ proc_create_net_single("rt6_stats", 0444, net->proc_net,
+ rt6_stats_seq_show, NULL);
#endif
return 0;
}