sysctl: Remove the unnecessary sysctl_set parent concept.
In sysctl_net register the two networking roots in the proper order.
In register_sysctl walk the sysctl sets in the reverse order of the
sysctl roots.
Remove parent from ctl_table_set and setup_sysctl_set as it is no
longer needed.
Signed-off-by: Eric W. Biederman <ebiederm@xmission.com>
diff --git a/fs/proc/proc_sysctl.c b/fs/proc/proc_sysctl.c
index 9d8223c..86d32a3 100644
--- a/fs/proc/proc_sysctl.c
+++ b/fs/proc/proc_sysctl.c
@@ -995,13 +995,20 @@
header->attached_by = header->ctl_table;
header->attached_to = root_table;
header->parent = &root_table_header;
- for (set = header->set; set; set = set->parent) {
+ set = header->set;
+ root = header->root;
+ for (;;) {
struct ctl_table_header *p;
list_for_each_entry(p, &set->list, ctl_entry) {
if (p->unregistering)
continue;
try_attach(p, header);
}
+ if (root == &sysctl_table_root)
+ break;
+ root = list_entry(root->root_list.prev,
+ struct ctl_table_root, root_list);
+ set = lookup_header_set(root, namespaces);
}
header->parent->count++;
list_add_tail(&header->ctl_entry, &header->set->list);
@@ -1072,11 +1079,9 @@
EXPORT_SYMBOL(unregister_sysctl_table);
void setup_sysctl_set(struct ctl_table_set *p,
- struct ctl_table_set *parent,
int (*is_seen)(struct ctl_table_set *))
{
INIT_LIST_HEAD(&p->list);
- p->parent = parent ? parent : &sysctl_table_root.default_set;
p->is_seen = is_seen;
}