27a884dc3c
So that it is also an offset from skb->head, reduces its size from 8 to 4 bytes
on 64bit architectures, allowing us to combine the 4 bytes hole left by the
layer headers conversion, reducing struct sk_buff size to 256 bytes, i.e. 4
64byte cachelines, and since the sk_buff slab cache is SLAB_HWCACHE_ALIGN...
:-)
Many calculations that previously required that skb->{transport,network,
mac}_header be first converted to a pointer now can be done directly, being
meaningful as offsets or pointers.
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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|---|---|---|
| .. | ||
| Kbuild | ||
| nf_conntrack_amanda.h | ||
| nf_conntrack_common.h | ||
| nf_conntrack_ftp.h | ||
| nf_conntrack_h323_asn1.h | ||
| nf_conntrack_h323_types.h | ||
| nf_conntrack_h323.h | ||
| nf_conntrack_irc.h | ||
| nf_conntrack_pptp.h | ||
| nf_conntrack_proto_gre.h | ||
| nf_conntrack_sane.h | ||
| nf_conntrack_sctp.h | ||
| nf_conntrack_sip.h | ||
| nf_conntrack_tcp.h | ||
| nf_conntrack_tftp.h | ||
| nf_conntrack_tuple_common.h | ||
| nfnetlink_conntrack.h | ||
| nfnetlink_log.h | ||
| nfnetlink_queue.h | ||
| nfnetlink.h | ||
| x_tables.h | ||
| xt_CLASSIFY.h | ||
| xt_comment.h | ||
| xt_connbytes.h | ||
| xt_connmark.h | ||
| xt_CONNMARK.h | ||
| xt_CONNSECMARK.h | ||
| xt_conntrack.h | ||
| xt_dccp.h | ||
| xt_dscp.h | ||
| xt_DSCP.h | ||
| xt_esp.h | ||
| xt_hashlimit.h | ||
| xt_helper.h | ||
| xt_length.h | ||
| xt_limit.h | ||
| xt_mac.h | ||
| xt_mark.h | ||
| xt_MARK.h | ||
| xt_multiport.h | ||
| xt_NFLOG.h | ||
| xt_NFQUEUE.h | ||
| xt_physdev.h | ||
| xt_pkttype.h | ||
| xt_policy.h | ||
| xt_quota.h | ||
| xt_realm.h | ||
| xt_sctp.h | ||
| xt_SECMARK.h | ||
| xt_state.h | ||
| xt_statistic.h | ||
| xt_string.h | ||
| xt_tcpmss.h | ||
| xt_TCPMSS.h | ||
| xt_tcpudp.h | ||