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| author | David S. Miller <davem@davemloft.net> | 2010-12-13 12:52:14 -0800 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2010-12-13 12:52:14 -0800 |
| commit | 0dbaee3b37e118a96bb7b8eb0d9bbaeeb46264be (patch) | |
| tree | 37000c5d7e663e4ae9800a7bcde9934984b8bae9 /net/decnet/af_decnet.c | |
| parent | cc6f02dd490dac4ad821d5077b934c9b37037cd0 (diff) | |
| download | linux-0dbaee3b37e118a96bb7b8eb0d9bbaeeb46264be.tar.gz linux-0dbaee3b37e118a96bb7b8eb0d9bbaeeb46264be.tar.xz | |
net: Abstract default ADVMSS behind an accessor.
Make all RTAX_ADVMSS metric accesses go through a new helper function,
dst_metric_advmss().
Leave the actual default metric as "zero" in the real metric slot,
and compute the actual default value dynamically via a new dst_ops
AF specific callback.
For stacked IPSEC routes, we use the advmss of the path which
preserves existing behavior.
Unlike ipv4/ipv6, DecNET ties the advmss to the mtu and thus updates
advmss on pmtu updates. This inconsistency in advmss handling
results in more raw metric accesses than I wish we ended up with.
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'net/decnet/af_decnet.c')
| -rw-r--r-- | net/decnet/af_decnet.c | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/net/decnet/af_decnet.c b/net/decnet/af_decnet.c index 0065e7e14af4..2af15b15d1fa 100644 --- a/net/decnet/af_decnet.c +++ b/net/decnet/af_decnet.c @@ -829,7 +829,7 @@ static int dn_confirm_accept(struct sock *sk, long *timeo, gfp_t allocation) return -EINVAL; scp->state = DN_CC; - scp->segsize_loc = dst_metric(__sk_dst_get(sk), RTAX_ADVMSS); + scp->segsize_loc = dst_metric_advmss(__sk_dst_get(sk)); dn_send_conn_conf(sk, allocation); prepare_to_wait(sk_sleep(sk), &wait, TASK_INTERRUPTIBLE); @@ -958,7 +958,7 @@ static int __dn_connect(struct sock *sk, struct sockaddr_dn *addr, int addrlen, sk->sk_route_caps = sk->sk_dst_cache->dev->features; sock->state = SS_CONNECTING; scp->state = DN_CI; - scp->segsize_loc = dst_metric(sk->sk_dst_cache, RTAX_ADVMSS); + scp->segsize_loc = dst_metric_advmss(sk->sk_dst_cache); dn_nsp_send_conninit(sk, NSP_CI); err = -EINPROGRESS; |