diff options
| author | Florian Westphal <fw@strlen.de> | 2009-03-18 17:28:37 +0100 |
|---|---|---|
| committer | Patrick McHardy <kaber@trash.net> | 2009-03-18 17:28:37 +0100 |
| commit | cd91566e4bdbcb8841385e4b2eacc8d0c29c9208 (patch) | |
| tree | 149c9a8d56f4ea7588f8e033337be9bbea5fc3fe | |
| parent | 0269ea4937343536ec7e85649932bc8c9686ea78 (diff) | |
netfilter: ctnetlink: remove remaining module refcounting
Convert the remaining refcount users.
As pointed out by Patrick McHardy, the protocols can be accessed safely using RCU.
Signed-off-by: Florian Westphal <fw@strlen.de>
Signed-off-by: Patrick McHardy <kaber@trash.net>
| -rw-r--r-- | net/netfilter/nf_conntrack_netlink.c | 15 |
1 files changed, 9 insertions, 6 deletions
diff --git a/net/netfilter/nf_conntrack_netlink.c b/net/netfilter/nf_conntrack_netlink.c index 9fb7cf7504f..735ea9c1a96 100644 --- a/net/netfilter/nf_conntrack_netlink.c +++ b/net/netfilter/nf_conntrack_netlink.c @@ -599,7 +599,8 @@ ctnetlink_parse_tuple_ip(struct nlattr *attr, struct nf_conntrack_tuple *tuple) nla_parse_nested(tb, CTA_IP_MAX, attr, NULL); - l3proto = nf_ct_l3proto_find_get(tuple->src.l3num); + rcu_read_lock(); + l3proto = __nf_ct_l3proto_find(tuple->src.l3num); if (likely(l3proto->nlattr_to_tuple)) { ret = nla_validate_nested(attr, CTA_IP_MAX, @@ -608,7 +609,7 @@ ctnetlink_parse_tuple_ip(struct nlattr *attr, struct nf_conntrack_tuple *tuple) ret = l3proto->nlattr_to_tuple(tb, tuple); } - nf_ct_l3proto_put(l3proto); + rcu_read_unlock(); return ret; } @@ -633,7 +634,8 @@ ctnetlink_parse_tuple_proto(struct nlattr *attr, return -EINVAL; tuple->dst.protonum = nla_get_u8(tb[CTA_PROTO_NUM]); - l4proto = nf_ct_l4proto_find_get(tuple->src.l3num, tuple->dst.protonum); + rcu_read_lock(); + l4proto = __nf_ct_l4proto_find(tuple->src.l3num, tuple->dst.protonum); if (likely(l4proto->nlattr_to_tuple)) { ret = nla_validate_nested(attr, CTA_PROTO_MAX, @@ -642,7 +644,7 @@ ctnetlink_parse_tuple_proto(struct nlattr *attr, ret = l4proto->nlattr_to_tuple(tb, tuple); } - nf_ct_l4proto_put(l4proto); + rcu_read_unlock(); return ret; } @@ -989,10 +991,11 @@ ctnetlink_change_protoinfo(struct nf_conn *ct, struct nlattr *cda[]) nla_parse_nested(tb, CTA_PROTOINFO_MAX, attr, NULL); - l4proto = nf_ct_l4proto_find_get(nf_ct_l3num(ct), nf_ct_protonum(ct)); + rcu_read_lock(); + l4proto = __nf_ct_l4proto_find(nf_ct_l3num(ct), nf_ct_protonum(ct)); if (l4proto->from_nlattr) err = l4proto->from_nlattr(tb, ct); - nf_ct_l4proto_put(l4proto); + rcu_read_unlock(); return err; } |