inet: frags: get rid of nf_ct_frag6_skb_cb/NFCT_FRAG6_CB

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nf_ct_frag6_queue() uses skb->cb[] to store the fragment offset,
meaning that we could use two cache lines per skb when finding
the insertion point, if for some reason inet6_skb_parm size
is increased in the future.

By using skb->ip_defrag_offset instead of skb->cb[] we pack all the fields
in a single cache line, matching what we did for IPv4.

Signed-off-by: Eric Dumazet <edumazet@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

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Eric Dumazet 2018-03-31 12:59:00 -07:00 • committed by David S. Miller

parent 219badfaad

commit f2d1c724fc

1 changed files with 11 additions and 18 deletions

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29

net/ipv6/netfilter/nf_conntrack_reasm.c

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