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27a884dc3c
linux/net
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Arnaldo Carvalho de Melo 27a884dc3c [SK_BUFF]: Convert skb->tail to sk_buff_data_t 
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>
2007-04-25 22:26:28 -07:00
..
802 [SK_BUFF]: unions of just one member don't get anything done, kill them 2007-04-25 22:26:20 -07:00
8021q [VLAN] vlan_dev: Use skb_reset_network_header(). 2007-04-25 22:26:26 -07:00
appletalk [SK_BUFF]: unions of just one member don't get anything done, kill them 2007-04-25 22:26:20 -07:00
atm [SK_BUFF]: Convert skb->tail to sk_buff_data_t 2007-04-25 22:26:28 -07:00
ax25 [SK_BUFF]: Introduce skb_transport_header(skb) 2007-04-25 22:25:31 -07:00
bluetooth [SK_BUFF]: Convert skb->tail to sk_buff_data_t 2007-04-25 22:26:28 -07:00
bridge [SK_BUFF]: unions of just one member don't get anything done, kill them 2007-04-25 22:26:20 -07:00
core [SK_BUFF]: Convert skb->tail to sk_buff_data_t 2007-04-25 22:26:28 -07:00
dccp [SK_BUFF]: Introduce icmp_hdr(), remove skb->h.icmph 2007-04-25 22:25:23 -07:00
decnet [SK_BUFF]: Convert skb->tail to sk_buff_data_t 2007-04-25 22:26:28 -07:00
econet [SK_BUFF]: Convert skb->tail to sk_buff_data_t 2007-04-25 22:26:28 -07:00
ethernet [SK_BUFF]: Introduce skb_reset_mac_header(skb) 2007-04-25 22:24:32 -07:00
ieee80211 [SK_BUFF]: Convert skb->tail to sk_buff_data_t 2007-04-25 22:26:28 -07:00
ipv4 [SK_BUFF]: Convert skb->tail to sk_buff_data_t 2007-04-25 22:26:28 -07:00
ipv6 [SK_BUFF]: Convert skb->tail to sk_buff_data_t 2007-04-25 22:26:28 -07:00
ipx [SK_BUFF]: Introduce skb_reset_transport_header(skb) 2007-04-25 22:25:15 -07:00
irda [SK_BUFF]: Convert skb->tail to sk_buff_data_t 2007-04-25 22:26:28 -07:00
iucv [SK_BUFF]: Introduce skb_reset_transport_header(skb) 2007-04-25 22:25:15 -07:00
key [SK_BUFF]: Introduce skb_reset_transport_header(skb) 2007-04-25 22:25:15 -07:00
lapb [PATCH] remove many unneeded #includes of sched.h 2007-02-14 08:09:54 -08:00
llc [SK_BUFF]: unions of just one member don't get anything done, kill them 2007-04-25 22:26:20 -07:00
netfilter [SK_BUFF]: Convert skb->tail to sk_buff_data_t 2007-04-25 22:26:28 -07:00
netlabel [NET]: Fix kfree(skb) 2007-02-28 09:42:14 -08:00
netlink [SK_BUFF]: Convert skb->tail to sk_buff_data_t 2007-04-25 22:26:28 -07:00
netrom [SK_BUFF]: More skb_put related conversions to skb_reset_transport_header 2007-04-25 22:25:59 -07:00
packet [SK_BUFF]: Convert skb->tail to sk_buff_data_t 2007-04-25 22:26:28 -07:00
rose [SK_BUFF]: More skb_put related conversions to skb_reset_transport_header 2007-04-25 22:25:59 -07:00
rxrpc [SK_BUFF]: Introduce udp_hdr(), remove skb->h.uh 2007-04-25 22:25:22 -07:00
sched [SK_BUFF]: Convert skb->tail to sk_buff_data_t 2007-04-25 22:26:28 -07:00
sctp [SK_BUFF]: Convert skb->tail to sk_buff_data_t 2007-04-25 22:26:28 -07:00
sunrpc [NET]: convert network timestamps to ktime_t 2007-04-25 22:23:34 -07:00
tipc [SK_BUFF]: Convert skb->tail to sk_buff_data_t 2007-04-25 22:26:28 -07:00
unix [SK_BUFF]: Introduce skb_reset_transport_header(skb) 2007-04-25 22:25:15 -07:00
wanrouter [SK_BUFF]: Introduce skb_reset_mac_header(skb) 2007-04-25 22:24:32 -07:00
x25 [SK_BUFF]: More skb_put related conversions to skb_reset_transport_header 2007-04-25 22:25:59 -07:00
xfrm [SK_BUFF]: Convert skb->tail to sk_buff_data_t 2007-04-25 22:26:28 -07:00
compat.c [NET]: Adding SO_TIMESTAMPNS / SCM_TIMESTAMPNS support 2007-04-25 22:24:21 -07:00
Kconfig [NET]: Replace CONFIG_NET_DEBUG with sysctl. 2007-04-25 22:24:05 -07:00
Makefile [S390]: Rewrite of the IUCV base code, part 2 2007-02-08 13:37:42 -08:00
nonet.c [PATCH] Make most file operations structs in fs/ const 2006-03-28 09:16:06 -08:00
socket.c [SOCKET]: Export __sock_recv_timestamp 2007-04-25 22:24:22 -07:00
sysctl_net.c Remove obsolete #include <linux/config.h> 2006-06-30 19:25:36 +02:00
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