linux/net
Eric Dumazet 5f58a5c872 [IPSEC] flow: Remove an unnecessary ____cacheline_aligned
We use a percpu variable named flow_hash_info, which holds 12 bytes.

It is currently marked as ____cacheline_aligned, which makes linker
skip space to properly align this variable.

Before :
c065cc90 D per_cpu__softnet_data
c065cd00 d per_cpu__flow_tables
<Here, hole of 124 bytes>
c065cd80 d per_cpu__flow_hash_info
<Here, hole of 116 bytes>
c065ce00 d per_cpu__flow_flush_tasklets
c065ce14 d per_cpu__rt_cache_stat


This alignement is quite unproductive, and removing it reduces the
size of percpu data (by 240 bytes on my x86 machine), and improves
performance (flow_tables & flow_hash_info can share a single cache
line)

After patch :
c065cc04 D per_cpu__softnet_data
c065cc4c d per_cpu__flow_tables
c065cc50 d per_cpu__flow_hash_info
c065cc5c d per_cpu__flow_flush_tasklets
c065cc70 d per_cpu__rt_cache_stat

Signed-off-by: Eric Dumazet <dada1@cosmosbay.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2008-02-07 18:03:18 -08:00
..
9p 9p: transport API reorganization 2008-02-06 19:25:03 -06:00
802 [TR] net/802/tr.c: sysctl_tr_rif_timeout static 2008-01-31 19:28:31 -08:00
8021q [VLAN]: set_rx_mode support for unicast address list 2008-01-31 19:28:24 -08:00
appletalk [APPLETALK]: Annotations to clear sparse warnings 2008-01-28 15:02:43 -08:00
atm [NETNS]: Add namespace parameter to ip_route_output_key. 2008-01-28 15:11:07 -08:00
ax25 [AX25]: Kill ax25_bind() user triggable printk. 2008-01-31 19:27:06 -08:00
bluetooth bluetooth rfcomm tty: destroy before tty_close() 2008-02-05 03:12:06 -08:00
bridge [NETFILTER]: ebtables: mark matches, targets and watchers __read_mostly 2008-01-31 19:27:34 -08:00
can [CAN]: Add virtual CAN netdevice driver 2008-01-28 14:54:12 -08:00
core [IPSEC] flow: Remove an unnecessary ____cacheline_aligned 2008-02-07 18:03:18 -08:00
dccp [SOCK] proto: Add hashinfo member to struct proto 2008-02-03 04:28:52 -08:00
decnet [NETNS]: FIB rules API cleanup. 2008-01-28 15:08:13 -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: beacon->capability is little-endian 2008-01-28 15:08:48 -08:00
ipv4 [IPV4]: route: fix crash ip_route_input 2008-02-07 17:58:20 -08:00
ipv6 [ICMP]: Restore pskb_pull calls in receive function 2008-02-05 03:15:50 -08:00
ipx [NET]: Simple ctl_table to ctl_path conversions. 2008-01-28 15:01:07 -08:00
irda [IrDA]: LMP discovery timer not started by default 2008-01-28 15:10:54 -08:00
iucv [IUCV]: use LIST_HEAD instead of LIST_HEAD_INIT 2008-01-28 14:56:54 -08:00
key [PATCH] switch audit_get_loginuid() to task_struct * 2008-02-01 14:04:59 -05:00
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: Is not EXPERIMENTAL anymore 2008-02-05 14:35:47 -05:00
netfilter [NETFILTER]: xt_iprange: add missing #include 2008-02-07 17:57:11 -08:00
netlabel NetLabel: introduce a new kernel configuration API for NetLabel 2008-02-05 09:44:20 -08:00
netlink [PATCH] switch audit_get_loginuid() to task_struct * 2008-02-01 14:04:59 -05:00
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 typo fix in net/rfkill/rfkill.c 2008-02-03 17:55:45 +02:00
rose [ROSE]: Supress sparse warnings 2008-01-28 15:02:44 -08:00
rxrpc Convert ERR_PTR(PTR_ERR(p)) instances to ERR_CAST(p) 2008-02-07 08:42:26 -08:00
sched [NET_SCHED]: cls_flow: support classification based on VLAN tag 2008-02-05 16:21:04 -08:00
sctp [SCTP]: Fix kernel panic while received AUTH chunk with BAD shared key identifier 2008-02-05 03:03:06 -08:00
sunrpc SUNRPC: RPC program information is stored in unsigned integers 2008-02-01 17:01:31 -05:00
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 WEXT: remove unused variable 2008-01-28 15:10:48 -08:00
x25 [AX25]: Beautify x25_init() version printk. 2008-01-31 19:27:06 -08:00
xfrm [PATCH] switch audit_get_loginuid() to task_struct * 2008-02-01 14:04:59 -05:00
compat.c [NETFILTER]: ip6_tables: add compat support 2008-01-28 14:58:36 -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
nonet.c
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
TUNABLE