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Eric Dumazet eda83e3b63 net_sched: sch_sfq: better struct layouts 
Here is a respin of patch.

I'll send a short patch to make SFQ more fair in presence of large
packets as well.

Thanks

[PATCH v3 net-next-2.6] net_sched: sch_sfq: better struct layouts

This patch shrinks sizeof(struct sfq_sched_data)
from 0x14f8 (or more if spinlocks are bigger) to 0x1180 bytes, and
reduce text size as well.

   text    data     bss     dec     hex filename
   4821     152       0    4973    136d old/net/sched/sch_sfq.o
   4627     136       0    4763    129b new/net/sched/sch_sfq.o

All data for a slot/flow is now grouped in a compact and cache friendly
structure, instead of being spreaded in many different points.

struct sfq_slot {
        struct sk_buff  *skblist_next;
        struct sk_buff  *skblist_prev;
        sfq_index       qlen; /* number of skbs in skblist */
        sfq_index       next; /* next slot in sfq chain */
        struct sfq_head dep; /* anchor in dep[] chains */
        unsigned short  hash; /* hash value (index in ht[]) */
        short           allot; /* credit for this slot */
};

Signed-off-by: Eric Dumazet <eric.dumazet@gmail.com>
Cc: Jarek Poplawski <jarkao2@gmail.com>
Cc: Patrick McHardy <kaber@trash.net>
Signed-off-by: David S. Miller <davem@davemloft.net>
 		2010-12-20 21:32:59 -08:00
..
9p net/9p/protocol.c: Remove duplicated macros. 2010-12-08 09:56:28 -08:00
802 net/802: add __rcu annotations 2010-10-25 13:09:44 -07:00
8021q 8021q: vlan device is lockless do not transfer real_num_{tx|rx}_queues 2010-11-28 10:47:19 -08:00
appletalk Merge branch 'master' of master.kernel.org:/pub/scm/linux/kernel/git/davem/net-2.6 2010-04-11 14:53:53 -07:00
atm net: kill unused macros 2010-12-19 21:59:35 -08:00
ax25 net: ax25: fix information leak to userland 2010-11-10 10:14:33 -08:00
batman-adv batman-adv: Return hna count on local buffer fill 2010-12-20 10:32:03 -08:00
bluetooth Merge branch 'master' of master.kernel.org:/pub/scm/linux/kernel/git/davem/net-2.6 2010-12-17 12:27:22 -08:00
bridge Merge branch 'master' of master.kernel.org:/pub/scm/linux/kernel/git/davem/net-2.6 2010-12-17 12:27:22 -08:00
caif Net: caif: Makefile: Remove deprecated items 2010-11-22 08:16:09 -08:00
can Net: can: Makefile: Remove deprecated kbuild goal definitions 2010-11-22 08:16:09 -08:00
ceph Merge branch 'master' of master.kernel.org:/pub/scm/linux/kernel/git/davem/net-2.6 2010-12-08 13:47:38 -08:00
core pktgen: Remove unnecessary prefix from pr_<level> 2010-12-20 10:30:06 -08:00
dcb include cleanup: Update gfp.h and slab.h includes to prepare for breaking implicit slab.h inclusion from percpu.h 2010-03-30 22:02:32 +09:00
dccp dccp: remove unused macros 2010-12-10 12:49:23 +01:00
decnet net: Abstract default MTU metric calculation behind an accessor. 2010-12-14 13:01:14 -08:00
dns_resolver Net: dns_resolver: Makefile: Remove deprecated kbuild goal definitions 2010-11-22 08:16:10 -08:00
dsa phylib: available for any speed ethernet 2010-08-11 23:03:50 -07:00
econet Merge branch 'master' of master.kernel.org:/pub/scm/linux/kernel/git/davem/net-2.6 2010-12-17 12:27:22 -08:00
ethernet net: return operator cleanup 2010-09-23 14:33:39 -07:00
ieee802154 net: RCU conversion of dev_getbyhwaddr() and arp_ioctl() 2010-12-08 10:07:24 -08:00
ipv4 ipv4: Flush per-ns routing cache more sanely. 2010-12-20 10:37:19 -08:00
ipv6 Merge branch 'master' of master.kernel.org:/pub/scm/linux/kernel/git/davem/net-2.6 2010-12-20 13:24:14 -08:00
ipx BKL: introduce CONFIG_BKL. 2010-10-21 15:44:13 +02:00
irda Net: irda: irnet: Makefile: Remove deprecated kbuild goal definitions 2010-11-22 08:16:13 -08:00
iucv [S390] cleanup lowcore access from external interrupts 2010-10-25 16:10:19 +02:00
key net: return operator cleanup 2010-09-23 14:33:39 -07:00
l2tp Merge branch 'master' of master.kernel.org:/pub/scm/linux/kernel/git/davem/net-2.6 2010-12-08 13:47:38 -08:00
lapb Net: lapb: Makefile: Remove deprecated kbuild goal definitions 2010-11-22 08:16:14 -08:00
llc net: RCU conversion of dev_getbyhwaddr() and arp_ioctl() 2010-12-08 10:07:24 -08:00
mac80211 Merge branch 'master' of master.kernel.org:/pub/scm/linux/kernel/git/davem/net-2.6 2010-12-17 12:27:22 -08:00
netfilter Merge branch 'master' of master.kernel.org:/pub/scm/linux/kernel/git/davem/net-2.6 2010-11-19 13:13:47 -08:00
netlabel net: kill unused macros 2010-12-19 21:59:35 -08:00
netlink netlink: fix netlink_change_ngroups() 2010-10-24 16:25:39 -07:00
netrom net: sk_sleep() helper 2010-04-20 16:37:13 -07:00
packet net: Use skb_checksum_start_offset() 2010-12-16 14:43:14 -08:00
phonet Net: phonet: Makefile: Remove deprecated kbuild goal definitions 2010-11-22 08:16:14 -08:00
rds Net: rds: Makefile: Remove deprecated items 2010-11-22 08:16:15 -08:00
rfkill rfkill: remove dead code 2010-11-15 13:24:06 -05:00
rose Merge branch 'master' of master.kernel.org:/pub/scm/linux/kernel/git/davem/net-2.6 2010-09-27 01:03:03 -07:00
rxrpc Net: rxrpc: Makefile: Remove deprecated kbuild goal definitions 2010-11-22 08:16:15 -08:00
sched net_sched: sch_sfq: better struct layouts 2010-12-20 21:32:59 -08:00
sctp Merge branch 'master' of master.kernel.org:/pub/scm/linux/kernel/git/davem/net-2.6 2010-12-17 12:27:22 -08:00
sunrpc Net: sunrpc: auth_gss: Makefile: Remove deprecated kbuild goal definitions 2010-11-22 08:16:16 -08:00
tipc tipc: Delete tipc_ownidentity() 2010-12-02 13:34:06 -08:00
unix Merge branch 'master' of master.kernel.org:/pub/scm/linux/kernel/git/davem/net-2.6 2010-12-08 13:47:38 -08:00
wanrouter Net: wanrouter: Makefile: Remove deprecated kbuild goal definitions 2010-11-22 08:16:16 -08:00
wimax Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next-2.6 2010-05-20 21:04:44 -07:00
wireless cfg80211: Add new BSS attribute ht_opmode 2010-12-08 15:38:43 -05:00
x25 Merge branch 'master' of master.kernel.org:/pub/scm/linux/kernel/git/davem/net-2.6 2010-12-08 13:47:38 -08:00
xfrm Merge branch 'master' of master.kernel.org:/pub/scm/linux/kernel/git/davem/net-2.6 2010-12-17 12:27:22 -08:00
Kconfig net: Add batman-adv meshing protocol 2010-12-16 13:44:24 -08:00
Makefile net: Add batman-adv meshing protocol 2010-12-16 13:44:24 -08:00
TUNABLE
…
compat.c net: Limit socket I/O iovec total length to INT_MAX. 2010-10-28 11:47:52 -07:00
nonet.c llseek: automatically add .llseek fop 2010-10-15 15:53:27 +02:00
socket.c Merge branch 'master' of master.kernel.org:/pub/scm/linux/kernel/git/davem/net-2.6 2010-12-17 12:27:22 -08:00
sysctl_net.c net: Remove unnecessary returns from void function()s 2010-05-17 23:23:14 -07:00