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40b215e594
linux/net
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Pavel Emelyanov 40b215e594 tcp: de-bloat a bit with factoring NET_INC_STATS_BH out 
There are some places in TCP that select one MIB index to
bump snmp statistics like this:

	if (<something>)
		NET_INC_STATS_BH(<some_id>);
	else if (<something_else>)
		NET_INC_STATS_BH(<some_other_id>);
	...
	else
		NET_INC_STATS_BH(<default_id>);

or in a more tricky but still similar way.

On the other hand, this NET_INC_STATS_BH is a camouflaged
increment of percpu variable, which is not that small.

Factoring those cases out de-bloats 235 bytes on non-preemptible
i386 config and drives parts of the code into 80 columns.

add/remove: 0/0 grow/shrink: 0/7 up/down: 0/-235 (-235)
function                                     old     new   delta
tcp_fastretrans_alert                       1437    1424     -13
tcp_dsack_set                                137     124     -13
tcp_xmit_retransmit_queue                    690     676     -14
tcp_try_undo_recovery                        283     265     -18
tcp_sacktag_write_queue                     1550    1515     -35
tcp_update_reordering                        162     106     -56
tcp_retransmit_timer                         990     904     -86

Signed-off-by: Pavel Emelyanov <xemul@openvz.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
2008-07-03 01:05:41 -07:00
..
9p 9p: fix error path during early mount 2008-05-14 19:23:27 -05:00
802
8021q vlan: Use bitmask of feature flags instead of seperate feature bits 2008-05-23 00:27:50 -07:00
appletalk [NET] NETNS: Omit net_device->nd_net without CONFIG_NET_NS. 2008-03-26 04:39:53 +09:00
atm atm: use const where reasonable 2008-06-17 16:20:06 -07:00
ax25 ax25: Fix std timer socket destroy handling. 2008-06-17 21:26:37 -07:00
bluetooth net: remove CVS keywords 2008-06-11 21:00:38 -07:00
bridge net: Discard and warn about LRO'd skbs received for forwarding 2008-06-19 16:22:28 -07:00
can Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-2.6 2008-05-08 19:03:26 -07:00
core netdev: Add support for rx flow hash configuration, using ethtool. 2008-07-02 03:47:41 -07:00
dccp net: change proto destroy method to return void 2008-06-14 17:04:49 -07:00
decnet decnet: Remove SOCK_SLEEP_{PRE,POST} usage. 2008-06-17 01:06:01 -07:00
econet econet: Use sock_orphan() instead of open-coded (and buggy) variant. 2008-06-17 03:01:47 -07:00
ethernet [NET]: Return more appropriate error from eth_validate_addr(). 2008-04-13 22:45:40 -07:00
ieee80211 wext: Emit event stream entries correctly when compat. 2008-06-16 18:50:49 -07:00
ipv4 tcp: de-bloat a bit with factoring NET_INC_STATS_BH out 2008-07-03 01:05:41 -07:00
ipv6 icmp: fix units for ratelimit 2008-07-01 19:29:07 -07:00
ipx [NET] NETNS: Omit net_device->nd_net without CONFIG_NET_NS. 2008-03-26 04:39:53 +09:00
irda Merge branch 'master' of master.kernel.org:/pub/scm/linux/kernel/git/davem/net-2.6 2008-06-10 02:22:26 -07:00
iucv af_iucv: exploit target message class support of IUCV 2008-06-09 15:51:03 -07:00
key Merge branch 'master' of master.kernel.org:/pub/scm/linux/kernel/git/davem/net-2.6 2008-06-13 20:52:39 -07:00
lapb
llc llc: Use sock_graft() instead of by-hand version. 2008-06-17 01:21:03 -07:00
mac80211 Merge branch 'master' of master.kernel.org:/pub/scm/linux/kernel/git/linville/wireless-next-2.6 2008-06-28 22:57:58 -07:00
netfilter Merge branch 'master' of master.kernel.org:/pub/scm/linux/kernel/git/davem/net-2.6 2008-06-19 16:00:04 -07:00
netlabel netlabel: Fix a problem when dumping the default IPv6 static labels 2008-06-27 20:12:32 -07:00
netlink Merge branch 'master' of master.kernel.org:/pub/scm/linux/kernel/git/davem/net-2.6 2008-06-28 01:19:40 -07:00
netrom netrom: Kill spurious NULL'ing of sk->sk_socket. 2008-06-17 03:19:58 -07:00
packet net: remove CVS keywords 2008-06-11 21:00:38 -07:00
rfkill rfkill: rename the rfkill_state states and add block-locked state 2008-06-26 14:21:22 -04:00
rose rose: improving AX25 routing frames via ROSE network 2008-06-17 17:08:32 -07:00
rxrpc net: Add missing braces to multi-statement if()s 2008-05-02 16:20:10 -07:00
sched Merge branch 'master' of master.kernel.org:/pub/scm/linux/kernel/git/davem/net-2.6 2008-06-28 01:19:40 -07:00
sctp sctp: Mark GET_PEER|LOCAL_ADDR_OLD deprecated. 2008-07-01 20:06:22 -07:00
sunrpc net: remove CVS keywords 2008-06-11 21:00:38 -07:00
tipc tipc: Message rejection rework preparatory changes 2008-06-04 17:54:48 -07:00
unix Merge branch 'master' of master.kernel.org:/pub/scm/linux/kernel/git/davem/net-2.6 2008-06-28 01:19:40 -07:00
wanrouter wanrouter: Push down BKL 2008-05-25 23:41:40 -07:00
wireless mac80211: implement EU regulatory domain 2008-06-25 10:31:29 -04:00
x25 x25: Use sock_orphan() instead of open-coded (and buggy) variant. 2008-06-17 03:05:13 -07:00
xfrm xfrm: xfrm_algo: correct usage of RIPEMD-160 2008-06-04 12:04:55 -07:00
compat.c net: Add compat support for getsockopt (MCAST_MSFILTER) 2008-04-29 03:23:22 -07:00
Kconfig [IPV4]: Fix size description of CONFIG_INET. 2008-03-04 15:18:22 +09:00
Makefile
nonet.c
socket.c wext: Dispatch and handle compat ioctls entirely in net/wireless/wext.c 2008-06-16 18:32:46 -07:00
sysctl_net.c net: remove CVS keywords 2008-06-11 21:00:38 -07:00
TUNABLE