[08/10] netfilter: nf_conntrack: remove unnecessary RTNL locking

Message ID 1345678726-3109-9-git-send-email-pablo@netfilter.org
State Accepted
Headers show

Commit Message

Pablo Neira Ayuso Aug. 22, 2012, 11:38 p.m.
From: Patrick McHardy <kaber@trash.net>

Locking the rtnl was added to nf_conntrack_l{3,4}_proto_unregister()
for walking the network namespace list. This is not done anymore since
we have proper namespace support in the protocols now, so we don't
need to take the RTNL anymore.

Signed-off-by: Patrick McHardy <kaber@trash.net>
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
---
 net/netfilter/nf_conntrack_proto.c |    5 -----
 1 file changed, 5 deletions(-)

Patch

diff --git a/net/netfilter/nf_conntrack_proto.c b/net/netfilter/nf_conntrack_proto.c
index 0dc6385..51e928d 100644
--- a/net/netfilter/nf_conntrack_proto.c
+++ b/net/netfilter/nf_conntrack_proto.c
@@ -21,7 +21,6 @@ 
 #include <linux/notifier.h>
 #include <linux/kernel.h>
 #include <linux/netdevice.h>
-#include <linux/rtnetlink.h>
 
 #include <net/netfilter/nf_conntrack.h>
 #include <net/netfilter/nf_conntrack_l3proto.h>
@@ -294,9 +293,7 @@  void nf_conntrack_l3proto_unregister(struct net *net,
 	nf_ct_l3proto_unregister_sysctl(net, proto);
 
 	/* Remove all contrack entries for this protocol */
-	rtnl_lock();
 	nf_ct_iterate_cleanup(net, kill_l3proto, proto);
-	rtnl_unlock();
 }
 EXPORT_SYMBOL_GPL(nf_conntrack_l3proto_unregister);
 
@@ -502,9 +499,7 @@  void nf_conntrack_l4proto_unregister(struct net *net,
 	nf_ct_l4proto_unregister_sysctl(net, pn, l4proto);
 
 	/* Remove all contrack entries for this protocol */
-	rtnl_lock();
 	nf_ct_iterate_cleanup(net, kill_l4proto, l4proto);
-	rtnl_unlock();
 }
 EXPORT_SYMBOL_GPL(nf_conntrack_l4proto_unregister);