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| author | Florian Westphal <fw@strlen.de> | 2021-04-12 21:55:43 +0200 |
|---|---|---|
| committer | Pablo Neira Ayuso <pablo@netfilter.org> | 2021-04-13 13:10:39 +0200 |
| commit | c53bd0e96662c2f77109e08a9889c9e1ee86c52d (patch) | |
| tree | e465cc24808ff62968cc474dcb8d2f8b33db6768 /include/net | |
| parent | f6f2e580d5f7152fb5ab11232edecb7fbeca3759 (diff) | |
| download | linux-c53bd0e96662c2f77109e08a9889c9e1ee86c52d.tar.gz linux-c53bd0e96662c2f77109e08a9889c9e1ee86c52d.tar.bz2 linux-c53bd0e96662c2f77109e08a9889c9e1ee86c52d.zip | |
netfilter: conntrack: move ct counter to net_generic data
Its only needed from slowpath (sysctl, ctnetlink, gc worker) and
when a new conntrack object is allocated.
Furthermore, each write dirties the otherwise read-mostly pernet
data in struct net.ct, which are accessed from packet path.
Move it to the net_generic data. This makes struct netns_ct
read-mostly.
Signed-off-by: Florian Westphal <fw@strlen.de>
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
Diffstat (limited to 'include/net')
| -rw-r--r-- | include/net/netfilter/nf_conntrack.h | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/include/net/netfilter/nf_conntrack.h b/include/net/netfilter/nf_conntrack.h index 0578a905b1df..06dc6db70d18 100644 --- a/include/net/netfilter/nf_conntrack.h +++ b/include/net/netfilter/nf_conntrack.h @@ -45,6 +45,7 @@ union nf_conntrack_expect_proto { struct nf_conntrack_net { /* only used when new connection is allocated: */ + atomic_t count; unsigned int expect_count; u8 sysctl_auto_assign_helper; bool auto_assign_helper_warned; @@ -337,6 +338,7 @@ struct nf_conn *nf_ct_tmpl_alloc(struct net *net, void nf_ct_tmpl_free(struct nf_conn *tmpl); u32 nf_ct_get_id(const struct nf_conn *ct); +u32 nf_conntrack_count(const struct net *net); static inline void nf_ct_set(struct sk_buff *skb, struct nf_conn *ct, enum ip_conntrack_info info) |