Commit 8425d6aa authored by Eric W. Biederman's avatar Eric W. Biederman

sysctl: Factor out insert_header and erase_header

Signed-off-by: default avatarEric W. Biederman <ebiederm@xmission.com>
parent e0d04529
...@@ -57,6 +57,17 @@ static void init_header(struct ctl_table_header *head, ...@@ -57,6 +57,17 @@ static void init_header(struct ctl_table_header *head,
head->parent = NULL; head->parent = NULL;
} }
static void erase_header(struct ctl_table_header *head)
{
list_del_init(&head->ctl_entry);
}
static void insert_header(struct ctl_table_header *header)
{
header->parent->count++;
list_add_tail(&header->ctl_entry, &header->set->list);
}
/* called under sysctl_lock */ /* called under sysctl_lock */
static int use_table(struct ctl_table_header *p) static int use_table(struct ctl_table_header *p)
{ {
...@@ -96,7 +107,7 @@ static void start_unregistering(struct ctl_table_header *p) ...@@ -96,7 +107,7 @@ static void start_unregistering(struct ctl_table_header *p)
* do not remove from the list until nobody holds it; walking the * do not remove from the list until nobody holds it; walking the
* list in do_sysctl() relies on that. * list in do_sysctl() relies on that.
*/ */
list_del_init(&p->ctl_entry); erase_header(p);
} }
static void sysctl_head_get(struct ctl_table_header *head) static void sysctl_head_get(struct ctl_table_header *head)
...@@ -974,8 +985,7 @@ struct ctl_table_header *__register_sysctl_table( ...@@ -974,8 +985,7 @@ struct ctl_table_header *__register_sysctl_table(
} }
if (sysctl_check_dups(namespaces, header, path, table)) if (sysctl_check_dups(namespaces, header, path, table))
goto fail_locked; goto fail_locked;
header->parent->count++; insert_header(header);
list_add_tail(&header->ctl_entry, &header->set->list);
spin_unlock(&sysctl_lock); spin_unlock(&sysctl_lock);
return header; return header;
......
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