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sysctl: Implement retire_sysctl_set

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This adds a small helper retire_sysctl_set to remove the intimate knowledge about
the how a sysctl_set is implemented from net/sysct_net.c

Signed-off-by: Eric W. Biederman <ebiederm@xmission.com>
This commit is contained in:
Eric W. Biederman 2012-01-09 22:19:13 -08:00
parent a15e20982e
commit 97324cd804
3 changed files with 6 additions and 1 deletions
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4
fs/proc/proc_sysctl.c
View file

@ -1080,6 +1080,10 @@ void setup_sysctl_set(struct ctl_table_set *p,
p->is_seen = is_seen;
}
void retire_sysctl_set(struct ctl_table_set *set)
{
WARN_ON(!list_empty(&set->list));
}
int __init proc_sys_init(void)
{

1
include/linux/sysctl.h
View file

@ -1072,6 +1072,7 @@ void proc_sys_poll_notify(struct ctl_table_poll *poll);
extern void setup_sysctl_set(struct ctl_table_set *p,
struct ctl_table_set *parent,
int (*is_seen)(struct ctl_table_set *));
extern void retire_sysctl_set(struct ctl_table_set *set);
void register_sysctl_root(struct ctl_table_root *root);
struct ctl_table_header *__register_sysctl_paths(

2
net/sysctl_net.c
View file

@ -82,7 +82,7 @@ static int __net_init sysctl_net_init(struct net *net)
static void __net_exit sysctl_net_exit(struct net *net)
{
WARN_ON(!list_empty(&net->sysctls.list));
retire_sysctl_set(&net->sysctls);
}
static struct pernet_operations sysctl_pernet_ops = {