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authorYasuyuki Kozakai <yasuyuki.kozakai@toshiba.co.jp>2007-03-23 21:17:27 +0300
committerDavid S. Miller <davem@sunset.davemloft.net>2007-04-26 09:27:45 +0400
commitde6e05c49f8b4ed63224c5d38891f531ecc4eabb (patch)
tree2ed69a03c657a5618bc98a5f74acb905bf764ecf /net
parent5f79e0f916a3bdeccc910fdf466bca582a9b2cca (diff)
downloadlinux-de6e05c49f8b4ed63224c5d38891f531ecc4eabb.tar.xz
[NETFILTER]: nf_conntrack: kill destroy() in struct nf_conntrack for diet
The destructor per conntrack is unnecessary, then this replaces it with system wide destructor. Signed-off-by: Yasuyuki Kozakai <yasuyuki.kozakai@toshiba.co.jp> Signed-off-by: Patrick McHardy <kaber@trash.net> Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'net')
-rw-r--r--net/netfilter/core.c17
-rw-r--r--net/netfilter/nf_conntrack_core.c4
2 files changed, 19 insertions, 2 deletions
diff --git a/net/netfilter/core.c b/net/netfilter/core.c
index fe5f22df620c..a84478ee2ded 100644
--- a/net/netfilter/core.c
+++ b/net/netfilter/core.c
@@ -260,7 +260,22 @@ void nf_ct_attach(struct sk_buff *new, struct sk_buff *skb)
}
}
EXPORT_SYMBOL(nf_ct_attach);
-#endif
+
+void (*nf_ct_destroy)(struct nf_conntrack *);
+EXPORT_SYMBOL(nf_ct_destroy);
+
+void nf_conntrack_destroy(struct nf_conntrack *nfct)
+{
+ void (*destroy)(struct nf_conntrack *);
+
+ rcu_read_lock();
+ destroy = rcu_dereference(nf_ct_destroy);
+ BUG_ON(destroy == NULL);
+ destroy(nfct);
+ rcu_read_unlock();
+}
+EXPORT_SYMBOL(nf_conntrack_destroy);
+#endif /* CONFIG_NF_CONNTRACK */
#ifdef CONFIG_PROC_FS
struct proc_dir_entry *proc_net_netfilter;
diff --git a/net/netfilter/nf_conntrack_core.c b/net/netfilter/nf_conntrack_core.c
index 6f2aac1d01af..e132c8ae8784 100644
--- a/net/netfilter/nf_conntrack_core.c
+++ b/net/netfilter/nf_conntrack_core.c
@@ -616,7 +616,6 @@ __nf_conntrack_alloc(const struct nf_conntrack_tuple *orig,
memset(conntrack, 0, nf_ct_cache[features].size);
conntrack->features = features;
atomic_set(&conntrack->ct_general.use, 1);
- conntrack->ct_general.destroy = destroy_conntrack;
conntrack->tuplehash[IP_CT_DIR_ORIGINAL].tuple = *orig;
conntrack->tuplehash[IP_CT_DIR_REPLY].tuple = *repl;
/* Don't set timer yet: wait for confirmation */
@@ -1122,6 +1121,8 @@ void nf_conntrack_cleanup(void)
while (atomic_read(&nf_conntrack_untracked.ct_general.use) > 1)
schedule();
+ rcu_assign_pointer(nf_ct_destroy, NULL);
+
for (i = 0; i < NF_CT_F_NUM; i++) {
if (nf_ct_cache[i].use == 0)
continue;
@@ -1259,6 +1260,7 @@ int __init nf_conntrack_init(void)
/* For use by REJECT target */
rcu_assign_pointer(ip_ct_attach, __nf_conntrack_attach);
+ rcu_assign_pointer(nf_ct_destroy, destroy_conntrack);
/* Set up fake conntrack:
- to never be deleted, not in any hashes */