netns: assign PDE->data before gluing entry into /proc tree
In this unfortunate case, proc_mkdir_mode wrapper can't be used anymore and
this is no way to reuse proc_create_data due to nlinks assignment. So,
copy the code from proc_mkdir and assign PDE->data at the appropriate
moment.
Signed-off-by: Denis V. Lunev <den@openvz.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
diff --git a/fs/proc/generic.c b/fs/proc/generic.c
index 9d53b39..43e54e8 100644
--- a/fs/proc/generic.c
+++ b/fs/proc/generic.c
@@ -641,6 +641,23 @@
return ent;
}
+struct proc_dir_entry *proc_net_mkdir(struct net *net, const char *name,
+ struct proc_dir_entry *parent)
+{
+ struct proc_dir_entry *ent;
+
+ ent = __proc_create(&parent, name, S_IFDIR | S_IRUGO | S_IXUGO, 2);
+ if (ent) {
+ ent->data = net;
+ if (proc_register(parent, ent) < 0) {
+ kfree(ent);
+ ent = NULL;
+ }
+ }
+ return ent;
+}
+EXPORT_SYMBOL_GPL(proc_net_mkdir);
+
struct proc_dir_entry *proc_mkdir(const char *name,
struct proc_dir_entry *parent)
{
diff --git a/fs/proc/proc_net.c b/fs/proc/proc_net.c
index 13cd783..83f357b 100644
--- a/fs/proc/proc_net.c
+++ b/fs/proc/proc_net.c
@@ -159,17 +159,6 @@
}
EXPORT_SYMBOL_GPL(get_proc_net);
-struct proc_dir_entry *proc_net_mkdir(struct net *net, const char *name,
- struct proc_dir_entry *parent)
-{
- struct proc_dir_entry *pde;
- pde = proc_mkdir_mode(name, S_IRUGO | S_IXUGO, parent);
- if (pde != NULL)
- pde->data = net;
- return pde;
-}
-EXPORT_SYMBOL_GPL(proc_net_mkdir);
-
static __net_init int proc_net_ns_init(struct net *net)
{
struct proc_dir_entry *netd, *net_statd;