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Eric Dumazet a6501e080c [IPV4] FIB_HASH: Reduce memory needs and speedup lookups 
Currently, sizeof(struct fib_alias) is 24 or 48 bytes on 32/64 bits
arches.

Because of SLAB_HWCACHE_ALIGN requirement, these are rounded to 32 and
64 bytes respectively.

This patch moves rcu to the end of fib_alias, and conditionally
defines it only for CONFIG_IP_FIB_TRIE.

We also remove SLAB_HWCACHE_ALIGN requirement for fib_alias and
fib_node objects because it is not necessary.

(BTW SLUB currently denies it for objects smaller than
cache_line_size() / 2, but not SLAB)

Finally, sizeof(fib_alias) go back to 16 and 32 bytes.

Then, we can embed one fib_alias on each fib_node, to favor locality.
Most of the time access to the fib_alias will be free because one
cache line contains both the list head (fn_alias) and (one of) the
list element.

Signed-off-by: Eric Dumazet <dada1@cosmosbay.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
 		2008-01-28 15:02:46 -08:00
..
9p 9p: add missing end-of-options record for trans_fd 2007-11-06 08:02:53 -06:00
802 [TR]: Use ctl paths to register net/token-ring/ table 2008-01-28 14:56:28 -08:00
8021q [VLAN]: nested VLAN: fix lockdep's recursive locking warning 2008-01-10 22:38:31 -08:00
appletalk [APPLETALK]: Annotations to clear sparse warnings 2008-01-28 15:02:43 -08:00
atm [ATM]: Suppress some sparse warnings 2008-01-28 15:02:43 -08:00
ax25 [AX25]: sparse cleanups 2008-01-28 15:02:03 -08:00
bluetooth [BLUETOOTH]: Use sockfd_put() 2008-01-28 15:00:48 -08:00
bridge [BRIDGE]: Remove unused macros from ebt_vlan.c 2008-01-28 15:01:11 -08:00
can [CAN]: Add virtual CAN netdevice driver 2008-01-28 14:54:12 -08:00
core [ARP]: neigh_parms_put(destroy) are essentially local to core/neighbour.c. 2008-01-28 15:02:11 -08:00
dccp [NET]: Simple ctl_table to ctl_path conversions. 2008-01-28 15:01:07 -08:00
decnet [NETNS]: Pass fib_rules_ops into default_pref method. 2008-01-28 15:01:22 -08:00
econet [NET]: Convert init_timer into setup_timer 2008-01-28 14:53:35 -08:00
ethernet [ETH]: Combine format_addr() with print_mac(). 2008-01-28 15:00:05 -08:00
ieee80211 [IEEE80211]: Use htons() where appropriate. 2008-01-28 14:58:02 -08:00
ipv4 [IPV4] FIB_HASH: Reduce memory needs and speedup lookups 2008-01-28 15:02:46 -08:00
ipv6 [NETFILTER]: nf_conntrack: make print_conntrack function optional for l4protos 2008-01-28 15:02:42 -08:00
ipx [NET]: Simple ctl_table to ctl_path conversions. 2008-01-28 15:01:07 -08:00
irda [NET]: Simple ctl_table to ctl_path conversions. 2008-01-28 15:01:07 -08:00
iucv [IUCV]: use LIST_HEAD instead of LIST_HEAD_INIT 2008-01-28 14:56:54 -08:00
key [XFRM] xfrm_policy_destroy: Rename and relative fixes. 2008-01-28 15:00:46 -08:00
lapb [LAPB] net/lapb/lapb_iface.c: use LIST_HEAD instead of LIST_HEAD_INIT 2008-01-28 14:56:52 -08:00
llc [NET]: Simple ctl_table to ctl_path conversions. 2008-01-28 15:01:07 -08:00
mac80211 mac80211: Add radio led trigger 2008-01-28 15:01:04 -08:00
netfilter [NETFILTER]: nf_conntrack: make print_conntrack function optional for l4protos 2008-01-28 15:02:42 -08:00
netlabel [NETLABEL]: Spelling fixes 2007-12-20 14:03:11 -08:00
netlink [NETLINK] af_netlink: kill some bloat 2008-01-28 15:01:50 -08:00
netrom [NET]: Simple ctl_table to ctl_path conversions. 2008-01-28 15:01:07 -08:00
packet [PACKET]: Fix sparse warnings in af_packet.c 2008-01-28 15:00:48 -08:00
rfkill rfkill: call rfkill_led_trigger_unregister() on error 2008-01-20 20:31:36 -08:00
rose [ROSE]: Supress sparse warnings 2008-01-28 15:02:44 -08:00
rxrpc [RXRPC]: Use cpu_to_be32() where appropriate. 2008-01-28 14:58:04 -08:00
sched [PKT_SCHED] HTB: htb_classid is dead static inline 2008-01-28 15:01:59 -08:00
sctp [NETNS][IPV6]: inet6_addr - check ipv6 address per namespace 2008-01-28 15:01:44 -08:00
sunrpc [NET]: Add some acquires/releases sparse annotations. 2008-01-28 15:00:31 -08:00
tipc [TIPC]: Use tipc_port_unlock 2008-01-28 15:01:05 -08:00
unix [NET]: Add some acquires/releases sparse annotations. 2008-01-28 15:00:31 -08:00
wanrouter [NET]: Make /proc/net per network namespace 2007-10-10 16:49:06 -07:00
wireless net/wireless/Kconfig: whitespace corrections 2008-01-28 14:59:55 -08:00
x25 [X25]: Avoid divides and sparse warnings 2008-01-28 15:02:03 -08:00
xfrm [XFRM] xfrm_policy: kill some bloat 2008-01-28 15:01:49 -08:00
Kconfig [NETFILTER]: Add CONFIG_NETFILTER_ADVANCED option 2008-01-28 14:59:12 -08:00
Makefile [CAN]: Add PF_CAN core module 2008-01-28 14:54:10 -08:00
TUNABLE
…
compat.c [NETFILTER]: ip6_tables: add compat support 2008-01-28 14:58:36 -08:00
nonet.c [PATCH] Make most file operations structs in fs/ const 2006-03-28 09:16:06 -08:00
socket.c [NET] sysctl: make sysctl_somaxconn per-namespace 2008-01-28 14:56:57 -08:00
sysctl_net.c [NET]: Remove the empty net_table 2008-01-28 14:56:29 -08:00