From: Florian Westphal <f...@strlen.de>
commit 9fd6452d67fb2acda12e5914e2ad371f067f3465 upstream.
There are several places where we needlesly call nf_ct_iterate_cleanup,
we should instead iterate the full table at module unload time.
This is a leftover from back when the conntrack table got duplicated
per net namespace.
So rename nf_ct_iterate_cleanup to nf_ct_iterate_cleanup_net.
A later patch will then add a non-net variant.
Signed-off-by: Florian Westphal <f...@strlen.de>
Signed-off-by: Pablo Neira Ayuso <pa...@netfilter.org>
Signed-off-by: Liwei Song <liwei.s...@windriver.com>
---
include/net/netfilter/nf_conntrack.h | 6 +++---
net/ipv4/netfilter/nf_nat_masquerade_ipv4.c | 4 ++--
net/ipv6/netfilter/nf_nat_masquerade_ipv6.c | 10 +++++-----
net/netfilter/nf_conntrack_core.c | 10 +++++-----
net/netfilter/nf_conntrack_netlink.c | 4 ++--
net/netfilter/nf_conntrack_proto.c | 4 ++--
net/netfilter/nf_nat_core.c | 6 +++---
7 files changed, 22 insertions(+), 22 deletions(-)
diff --git a/include/net/netfilter/nf_conntrack.h
b/include/net/netfilter/nf_conntrack.h
index 8ece3612d0cd..f21180ea4558 100644
--- a/include/net/netfilter/nf_conntrack.h
+++ b/include/net/netfilter/nf_conntrack.h
@@ -225,9 +225,9 @@ extern s32 (*nf_ct_nat_offset)(const struct nf_conn *ct,
u32 seq);
/* Iterate over all conntracks: if iter returns true, it's deleted. */
-void nf_ct_iterate_cleanup(struct net *net,
- int (*iter)(struct nf_conn *i, void *data),
- void *data, u32 portid, int report);
+void nf_ct_iterate_cleanup_net(struct net *net,
+ int (*iter)(struct nf_conn *i, void *data),
+ void *data, u32 portid, int report);
struct nf_conntrack_zone;
diff --git a/net/ipv4/netfilter/nf_nat_masquerade_ipv4.c
b/net/ipv4/netfilter/nf_nat_masquerade_ipv4.c
index dc1dea15c1b4..f39037fca923 100644
--- a/net/ipv4/netfilter/nf_nat_masquerade_ipv4.c
+++ b/net/ipv4/netfilter/nf_nat_masquerade_ipv4.c
@@ -98,8 +98,8 @@ static int masq_device_event(struct notifier_block *this,
*/
NF_CT_ASSERT(dev->ifindex != 0);
- nf_ct_iterate_cleanup(net, device_cmp,
- (void *)(long)dev->ifindex, 0, 0);
+ nf_ct_iterate_cleanup_net(net, device_cmp,
+ (void *)(long)dev->ifindex, 0, 0);
}
return NOTIFY_DONE;
diff --git a/net/ipv6/netfilter/nf_nat_masquerade_ipv6.c
b/net/ipv6/netfilter/nf_nat_masquerade_ipv6.c
index 2297c9f073ba..d7b679037bae 100644
--- a/net/ipv6/netfilter/nf_nat_masquerade_ipv6.c
+++ b/net/ipv6/netfilter/nf_nat_masquerade_ipv6.c
@@ -75,8 +75,8 @@ static int masq_device_event(struct notifier_block *this,
struct net *net = dev_net(dev);
if (event == NETDEV_DOWN)
- nf_ct_iterate_cleanup(net, device_cmp,
- (void *)(long)dev->ifindex, 0, 0);
+ nf_ct_iterate_cleanup_net(net, device_cmp,
+ (void *)(long)dev->ifindex, 0, 0);
return NOTIFY_DONE;
}
@@ -99,7 +99,7 @@ static void iterate_cleanup_work(struct work_struct *work)
w = container_of(work, struct masq_dev_work, work);
index = w->ifindex;
- nf_ct_iterate_cleanup(w->net, device_cmp, (void *)index, 0, 0);
+ nf_ct_iterate_cleanup_net(w->net, device_cmp, (void *)index, 0, 0);
put_net(w->net);
kfree(w);
@@ -110,12 +110,12 @@ static void iterate_cleanup_work(struct work_struct *work)
/* ipv6 inet notifier is an atomic notifier, i.e. we cannot
* schedule.
*
- * Unfortunately, nf_ct_iterate_cleanup can run for a long
+ * Unfortunately, nf_ct_iterate_cleanup_net can run for a long
* time if there are lots of conntracks and the system
* handles high softirq load, so it frequently calls cond_resched
* while iterating the conntrack table.
*
- * So we defer nf_ct_iterate_cleanup walk to the system workqueue.
+ * So we defer nf_ct_iterate_cleanup_net walk to the system workqueue.
*
* As we can have 'a lot' of inet_events (depending on amount
* of ipv6 addresses being deleted), we also need to add an upper
diff --git a/net/netfilter/nf_conntrack_core.c
b/net/netfilter/nf_conntrack_core.c
index e0560c41e371..9e2b1f9e9a94 100644
--- a/net/netfilter/nf_conntrack_core.c
+++ b/net/netfilter/nf_conntrack_core.c
@@ -1640,9 +1640,9 @@ get_next_corpse(struct net *net, int (*iter)(struct
nf_conn *i, void *data),
return ct;
}
-void nf_ct_iterate_cleanup(struct net *net,
- int (*iter)(struct nf_conn *i, void *data),
- void *data, u32 portid, int report)
+void nf_ct_iterate_cleanup_net(struct net *net,
+ int (*iter)(struct nf_conn *i, void *data),
+ void *data, u32 portid, int report)
{
struct nf_conn *ct;
unsigned int bucket = 0;
@@ -1660,7 +1660,7 @@ void nf_ct_iterate_cleanup(struct net *net,
cond_resched();
}
}
-EXPORT_SYMBOL_GPL(nf_ct_iterate_cleanup);
+EXPORT_SYMBOL_GPL(nf_ct_iterate_cleanup_net);
static int kill_all(struct nf_conn *i, void *data)
{
@@ -1729,7 +1729,7 @@ void nf_conntrack_cleanup_net_list(struct list_head
*net_exit_list)
i_see_dead_people:
busy = 0;
list_for_each_entry(net, net_exit_list, exit_list) {
- nf_ct_iterate_cleanup(net, kill_all, NULL, 0, 0);
+ nf_ct_iterate_cleanup_net(net, kill_all, NULL, 0, 0);
if (atomic_read(&net->ct.count) != 0)
busy = 1;
}
diff --git a/net/netfilter/nf_conntrack_netlink.c
b/net/netfilter/nf_conntrack_netlink.c
index a8be9b72e6cd..2c3176292c46 100644
--- a/net/netfilter/nf_conntrack_netlink.c
+++ b/net/netfilter/nf_conntrack_netlink.c
@@ -1122,8 +1122,8 @@ static int ctnetlink_flush_conntrack(struct net *net,
return PTR_ERR(filter);
}
- nf_ct_iterate_cleanup(net, ctnetlink_filter_match, filter,
- portid, report);
+ nf_ct_iterate_cleanup_net(net, ctnetlink_filter_match, filter,
+ portid, report);
kfree(filter);
return 0;
diff --git a/net/netfilter/nf_conntrack_proto.c
b/net/netfilter/nf_conntrack_proto.c
index 2de6c1fe3261..b7d01f27d463 100644
--- a/net/netfilter/nf_conntrack_proto.c
+++ b/net/netfilter/nf_conntrack_proto.c
@@ -282,7 +282,7 @@ void nf_ct_l3proto_pernet_unregister(struct net *net,
proto->net_ns_put(net);
/* Remove all contrack entries for this protocol */
- nf_ct_iterate_cleanup(net, kill_l3proto, proto, 0, 0);
+ nf_ct_iterate_cleanup_net(net, kill_l3proto, proto, 0, 0);
}
EXPORT_SYMBOL_GPL(nf_ct_l3proto_pernet_unregister);
@@ -450,7 +450,7 @@ void nf_ct_l4proto_pernet_unregister_one(struct net *net,
nf_ct_l4proto_unregister_sysctl(net, pn, l4proto);
/* Remove all contrack entries for this protocol */
- nf_ct_iterate_cleanup(net, kill_l4proto, l4proto, 0, 0);
+ nf_ct_iterate_cleanup_net(net, kill_l4proto, l4proto, 0, 0);
}
EXPORT_SYMBOL_GPL(nf_ct_l4proto_pernet_unregister_one);
diff --git a/net/netfilter/nf_nat_core.c b/net/netfilter/nf_nat_core.c
index b93a46ef812d..d52ef757eeac 100644
--- a/net/netfilter/nf_nat_core.c
+++ b/net/netfilter/nf_nat_core.c
@@ -587,7 +587,7 @@ static void nf_nat_l4proto_clean(u8 l3proto, u8 l4proto)
rtnl_lock();
for_each_net(net)
- nf_ct_iterate_cleanup(net, nf_nat_proto_remove, &clean, 0, 0);
+ nf_ct_iterate_cleanup_net(net, nf_nat_proto_remove, &clean, 0,
0);
rtnl_unlock();
}
@@ -601,7 +601,7 @@ static void nf_nat_l3proto_clean(u8 l3proto)
rtnl_lock();
for_each_net(net)
- nf_ct_iterate_cleanup(net, nf_nat_proto_remove, &clean, 0, 0);
+ nf_ct_iterate_cleanup_net(net, nf_nat_proto_remove, &clean, 0,
0);
rtnl_unlock();
}
@@ -827,7 +827,7 @@ static void __net_exit nf_nat_net_exit(struct net *net)
{
struct nf_nat_proto_clean clean = {};
- nf_ct_iterate_cleanup(net, nf_nat_proto_clean, &clean, 0, 0);
+ nf_ct_iterate_cleanup_net(net, nf_nat_proto_clean, &clean, 0, 0);
}
static struct pernet_operations nf_nat_net_ops = {
--
2.7.4
--
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