diff --git a/include/net/sctp/structs.h b/include/net/sctp/structs.h index 503fbc3cd819948ef516a00297f77016414457c4..2b6f3f13d5bcb3e8b3782fad446f3bea624f7670 100644 --- a/include/net/sctp/structs.h +++ b/include/net/sctp/structs.h @@ -1239,6 +1239,9 @@ struct sctp_ep_common { /* What socket does this endpoint belong to? */ struct sock *sk; + /* Cache netns and it won't change once set */ + struct net *net; + /* This is where we receive inbound chunks. */ struct sctp_inq inqueue; diff --git a/net/sctp/associola.c b/net/sctp/associola.c index d2ffc9a0ba3a608637472a3492043ce088acabe0..41839b85c268686b98679b2dc6bdf95783414fa5 100644 --- a/net/sctp/associola.c +++ b/net/sctp/associola.c @@ -64,6 +64,7 @@ static struct sctp_association *sctp_association_init( /* Discarding const is appropriate here. */ asoc->ep = (struct sctp_endpoint *)ep; asoc->base.sk = (struct sock *)sk; + asoc->base.net = sock_net(sk); sctp_endpoint_hold(asoc->ep); sock_hold(asoc->base.sk); diff --git a/net/sctp/endpointola.c b/net/sctp/endpointola.c index ea53049d1db663e63def7f5e7e22e788c7456d22..3067deb0fbec1c21d967a0bf35015ca410a8c836 100644 --- a/net/sctp/endpointola.c +++ b/net/sctp/endpointola.c @@ -110,6 +110,7 @@ static struct sctp_endpoint *sctp_endpoint_init(struct sctp_endpoint *ep, /* Remember who we are attached to. */ ep->base.sk = sk; + ep->base.net = sock_net(sk); sock_hold(ep->base.sk); return ep; diff --git a/net/sctp/input.c b/net/sctp/input.c index 2277981559d0700669807dff4981e23e03be66ef..4d2bcfc9d7f88be73175c0791dafa7a6a9940719 100644 --- a/net/sctp/input.c +++ b/net/sctp/input.c @@ -882,7 +882,7 @@ static inline int sctp_hash_cmp(struct rhashtable_compare_arg *arg, if (!sctp_transport_hold(t)) return err; - if (!net_eq(sock_net(t->asoc->base.sk), x->net)) + if (!net_eq(t->asoc->base.net, x->net)) goto out; if (x->lport != htons(t->asoc->base.bind_addr.port)) goto out; @@ -897,7 +897,7 @@ static inline __u32 sctp_hash_obj(const void *data, u32 len, u32 seed) { const struct sctp_transport *t = data; - return sctp_hashfn(sock_net(t->asoc->base.sk), + return sctp_hashfn(t->asoc->base.net, htons(t->asoc->base.bind_addr.port), &t->ipaddr, seed); }