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69a73829db
linux/net
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Eric Dumazet 69a73829db [DST]: shrinks sizeof(struct rtable) by 64 bytes on x86_64 
On x86_64, sizeof(struct rtable) is 0x148, which is rounded up to
0x180 bytes by SLAB allocator.

We can reduce this to exactly 0x140 bytes, without alignment overhead,
and store 12 struct rtable per PAGE instead of 10.

rate_tokens is currently defined as an "unsigned long", while its
content should not exceed 6*HZ. It can safely be converted to an
unsigned int.

Moving tclassid right after rate_tokens to fill the 4 bytes hole
permits to save 8 bytes on 'struct dst_entry', which finally permits
to save 8 bytes on 'struct rtable'

Signed-off-by: Eric Dumazet <dada1@cosmosbay.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2008-01-28 15:10:41 -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]: sparse warning fix 2008-01-28 15:10:17 -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 [NETNS]: Consolidate kernel netlink socket destruction. 2008-01-28 15:08:07 -08:00
can [CAN]: Add virtual CAN netdevice driver 2008-01-28 14:54:12 -08:00
core [IPV4]: Enable use of 240/4 address space. 2008-01-28 15:08:44 -08:00
dccp [NET]: Simple ctl_table to ctl_path conversions. 2008-01-28 15:01:07 -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 [DST]: shrinks sizeof(struct rtable) by 64 bytes on x86_64 2008-01-28 15:10:41 -08:00
ipv6 [NETNS][FRAGS]: Make the pernet subsystem for fragments. 2008-01-28 15:10:40 -08:00
ipx [NET]: Simple ctl_table to ctl_path conversions. 2008-01-28 15:01:07 -08:00
irda [IrDA]: Irport removal - part 1 2008-01-28 15:08:10 -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: A-MPDU Rx remove stop_rx_ba_session warning print 2008-01-28 15:10:10 -08:00
netfilter [NETNS]: Consolidate kernel netlink socket destruction. 2008-01-28 15:08:07 -08:00
netlabel [NETLABEL]: Spelling fixes 2007-12-20 14:03:11 -08:00
netlink [NETNS]: Namespace stop vs 'ip r l' race. 2008-01-28 15:08:08 -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] net classifier: style cleanup's 2008-01-28 15:08:42 -08:00
sctp [SCTP]: Correctly initialize error when parameter validation failed. 2008-01-28 15:08:11 -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 [NETNS]: Consolidate kernel netlink socket destruction. 2008-01-28 15:08:07 -08:00
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 [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
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