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From: Julian Anastasov <ja@xxxxxx>
Date: Wed, 6 Mar 2013 23:58:09 +0200 (EET)
> There are two choices: __ip_vs_get_out_rt
> to return refdst as implemented in this patchset or
> to return dst with additional 'bool *noref' argument,
> so that caller can decide between skb_dst_set or
> skb_set_dst_noref. Then may be we will need just
> a new skb_dst_set_noref_{always,force} func that will
> contain the old skb_set_dst_noref code, i.e. without
> dst_hold? Not sure which variant sounds better.
Both variants are starting to sound equally ugly :-)
Let me ask about this situation in another way.
IP input route lookup clients handle this transparently,
even for routes with next-hop exceptions and nocache
routes, by passing the SKB into the lookup function and
there it will sort out whether noref is actually possible.
Is there a reason that IPVS's route lookup architecture
can't work this way too?
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