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authorDavid S. Miller <davem@davemloft.net>2010-12-13 12:52:14 -0800
committerDavid S. Miller <davem@davemloft.net>2010-12-13 12:52:14 -0800
commit0dbaee3b37e118a96bb7b8eb0d9bbaeeb46264be (patch)
tree37000c5d7e663e4ae9800a7bcde9934984b8bae9 /drivers/scsi/cxgbi
parentcc6f02dd490dac4ad821d5077b934c9b37037cd0 (diff)
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 'drivers/scsi/cxgbi')
-rw-r--r--drivers/scsi/cxgbi/libcxgbi.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/drivers/scsi/cxgbi/libcxgbi.c b/drivers/scsi/cxgbi/libcxgbi.c
index be5661707dfa..d2ad3d676724 100644
--- a/drivers/scsi/cxgbi/libcxgbi.c
+++ b/drivers/scsi/cxgbi/libcxgbi.c
@@ -825,7 +825,7 @@ unsigned int cxgbi_sock_select_mss(struct cxgbi_sock *csk, unsigned int pmtu)
unsigned int idx;
struct dst_entry *dst = csk->dst;
- csk->advmss = dst_metric(dst, RTAX_ADVMSS);
+ csk->advmss = dst_metric_advmss(dst);
if (csk->advmss > pmtu - 40)
csk->advmss = pmtu - 40;