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| author | David S. Miller <davem@davemloft.net> | 2012-07-16 14:57:14 +0400 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2012-07-16 14:57:14 +0400 |
| commit | 02f3d4ce9e81434a365f4643020b0402f6fe3332 (patch) | |
| tree | 8fd12d62c3d92ed090d1d7e5f92750bef951b914 /net/sctp/transport.c | |
| parent | 35ad9b9cf7d8a2e6259a0d24022e910adb6f3489 (diff) | |
| download | linux-02f3d4ce9e81434a365f4643020b0402f6fe3332.tar.xz | |
sctp: Adjust PMTU updates to accomodate route invalidation.
This adjusts the call to dst_ops->update_pmtu() so that we can
transparently handle the fact that, in the future, the dst itself can
be invalidated by the PMTU update (when we have non-host routes cached
in sockets).
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'net/sctp/transport.c')
| -rw-r--r-- | net/sctp/transport.c | 12 |
1 files changed, 10 insertions, 2 deletions
diff --git a/net/sctp/transport.c b/net/sctp/transport.c index 1dcceb6e0ce6..e69e1a2175a4 100644 --- a/net/sctp/transport.c +++ b/net/sctp/transport.c @@ -228,7 +228,7 @@ void sctp_transport_pmtu(struct sctp_transport *transport, struct sock *sk) transport->pathmtu = SCTP_DEFAULT_MAXSEGMENT; } -void sctp_transport_update_pmtu(struct sctp_transport *t, u32 pmtu) +void sctp_transport_update_pmtu(struct sock *sk, struct sctp_transport *t, u32 pmtu) { struct dst_entry *dst; @@ -245,8 +245,16 @@ void sctp_transport_update_pmtu(struct sctp_transport *t, u32 pmtu) } dst = sctp_transport_dst_check(t); - if (dst) + if (!dst) + t->af_specific->get_dst(t, &t->saddr, &t->fl, sk); + + if (dst) { dst->ops->update_pmtu(dst, pmtu); + + dst = sctp_transport_dst_check(t); + if (!dst) + t->af_specific->get_dst(t, &t->saddr, &t->fl, sk); + } } /* Caches the dst entry and source address for a transport's destination |