forked from Minki/linux
6869c4d8e0
As discussed at netconf'05, we're trying to save every bit in sk_buff. The patch below makes sk_buff 8 bytes smaller. I did some basic testing on my notebook and it seems to work. The only real in-tree user of nfcache was IPVS, who only needs a single bit. Unfortunately I couldn't find some other free bit in sk_buff to stuff that bit into, so I introduced a separate field for them. Maybe the IPVS guys can resolve that to further save space. Initially I wanted to shrink pkt_type to three bits (PACKET_HOST and alike are only 6 values defined), but unfortunately the bluetooth code overloads pkt_type :( The conntrack-event-api (out-of-tree) uses nfcache, but Rusty just came up with a way how to do it without any skb fields, so it's safe to remove it. - remove all never-implemented 'nfcache' code - don't have ipvs code abuse 'nfcache' field. currently get's their own compile-conditional skb->ipvs_property field. IPVS maintainers can decide to move this bit elswhere, but nfcache needs to die. - remove skb->nfcache field to save 4 bytes - move skb->nfctinfo into three unused bits to save further 4 bytes Signed-off-by: Harald Welte <laforge@netfilter.org> Signed-off-by: David S. Miller <davem@davemloft.net> |
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| .. | ||
| ip6_queue.c | ||
| ip6_tables.c | ||
| ip6t_ah.c | ||
| ip6t_dst.c | ||
| ip6t_esp.c | ||
| ip6t_eui64.c | ||
| ip6t_frag.c | ||
| ip6t_hbh.c | ||
| ip6t_hl.c | ||
| ip6t_ipv6header.c | ||
| ip6t_length.c | ||
| ip6t_limit.c | ||
| ip6t_LOG.c | ||
| ip6t_mac.c | ||
| ip6t_mark.c | ||
| ip6t_MARK.c | ||
| ip6t_multiport.c | ||
| ip6t_owner.c | ||
| ip6t_physdev.c | ||
| ip6t_rt.c | ||
| ip6table_filter.c | ||
| ip6table_mangle.c | ||
| ip6table_raw.c | ||
| Kconfig | ||
| Makefile | ||