linux/net
Eric Dumazet d6a4a10411 tcp: GSO should be TSQ friendly
I noticed that TSQ (TCP Small queues) was less effective when TSO is
turned off, and GSO is on. If BQL is not enabled, TSQ has then no
effect.

It turns out the GSO engine frees the original gso_skb at the time the
fragments are generated and queued to the NIC.

We should instead call the tcp_wfree() destructor for the last fragment,
to keep the flow control as intended in TSQ. This effectively limits
the number of queued packets on qdisc + NIC layers.

Signed-off-by: Eric Dumazet <edumazet@google.com>
Cc: Tom Herbert <therbert@google.com>
Cc: Yuchung Cheng <ycheng@google.com>
Cc: Nandita Dukkipati <nanditad@google.com>
Cc: Neal Cardwell <ncardwell@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2013-04-12 18:17:06 -04:00
..
9p Revert parts of "hlist: drop the node parameter from iterators" 2013-03-08 15:05:34 -08:00
802 802: fix a possible race condition 2013-04-07 17:04:17 -04:00
8021q 8021q: fix a potential use-after-free 2013-03-24 17:27:28 -04:00
appletalk hlist: drop the node parameter from iterators 2013-02-27 19:10:24 -08:00
atm Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net 2013-04-07 18:37:01 -04:00
ax25 ax25: fix info leak via msg_name in ax25_recvmsg() 2013-04-07 16:28:00 -04:00
batman-adv batman-adv: use seq_puts instead of seq_printf when the format is constant 2013-03-27 10:29:55 +01:00
bluetooth Merge branch 'master' of git://git.kernel.org/pub/scm/linux/kernel/git/linville/wireless-next into for-davem 2013-04-10 10:39:27 -04:00
bridge Merge branch 'master' of git://1984.lsi.us.es/nf-next 2013-04-07 12:22:06 -04:00
caif Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net 2013-04-07 18:37:01 -04:00
can rtnetlink: Remove passing of attributes into rtnl_doit functions 2013-03-22 10:31:16 -04:00
ceph Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/sage/ceph-client 2013-03-12 09:22:42 -07:00
core Revert "netprio_cgroup: make local table static" 2013-04-12 03:06:44 -04:00
dcb rtnetlink: Remove passing of attributes into rtnl_doit functions 2013-03-22 10:31:16 -04:00
dccp tcp: Remove TCPCT 2013-03-17 14:35:13 -04:00
decnet decnet: remove duplicated include from dn_table.c 2013-04-07 17:12:01 -04:00
dns_resolver Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jmorris/linux-security 2012-12-16 15:40:50 -08:00
dsa dsa: fix freeing of sparse port allocation 2013-03-25 12:23:41 -04:00
ethernet net: add ETH_P_802_3_MIN 2013-03-28 01:20:42 -04:00
ieee802154 ieee802154/nl-mac.c: make some MLME operations optional 2013-04-08 12:00:16 -04:00
ipv4 tcp: GSO should be TSQ friendly 2013-04-12 18:17:06 -04:00
ipv6 Merge branch 'master' of git://git.kernel.org/pub/scm/linux/kernel/git/klassert/ipsec-next 2013-04-11 16:14:37 -04:00
ipx hlist: drop the node parameter from iterators 2013-02-27 19:10:24 -08:00
irda TTY: ircomm, use GFP_KERNEL in ircomm_open() 2013-04-08 12:09:18 -04:00
iucv Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net 2013-04-07 18:37:01 -04:00
key Merge branch 'master' of git://git.kernel.org/pub/scm/linux/kernel/git/klassert/ipsec 2013-03-27 14:07:04 -04:00
l2tp Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net 2013-04-07 18:37:01 -04:00
lapb net/lapb: remove depends on CONFIG_EXPERIMENTAL 2013-01-11 11:40:01 -08:00
llc llc: Fix missing msg_namelen update in llc_ui_recvmsg() 2013-04-07 16:28:01 -04:00
mac80211 Merge branch 'master' of git://git.kernel.org/pub/scm/linux/kernel/git/linville/wireless-next into for-davem 2013-04-10 10:39:27 -04:00
mac802154 mac802154: Keep track of the channel when changed 2013-04-08 12:09:18 -04:00
netfilter Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net 2013-04-07 18:37:01 -04:00
netlabel netlabel: fix build problems when CONFIG_IPV6=n 2013-03-08 11:33:51 -05:00
netlink net-next: replace obsolete NLMSG_* with type safe nlmsg_* 2013-03-28 14:25:25 -04:00
netrom netrom: fix info leak via msg_name in nr_recvmsg() 2013-04-07 16:28:02 -04:00
nfc Merge branch 'master' of git://git.kernel.org/pub/scm/linux/kernel/git/linville/wireless 2013-04-10 09:31:39 -04:00
openvswitch net: add ETH_P_802_3_MIN 2013-03-28 01:20:42 -04:00
packet net: switch to use skb_probe_transport_header() 2013-03-27 12:48:31 -04:00
phonet rtnetlink: Remove passing of attributes into rtnl_doit functions 2013-03-22 10:31:16 -04:00
rds net/rds: zero last byte for strncpy 2013-03-08 00:35:44 -05:00
rfkill net: rfkill: Fix sparse warning in rfkill-regulator.c 2013-03-06 16:35:41 +01:00
rose rose: fix info leak via msg_name in rose_recvmsg() 2013-04-07 16:28:02 -04:00
rxrpc Driver core patches for 3.9-rc1 2013-02-21 12:05:51 -08:00
sched act_csum: fix possible use after free 2013-04-12 15:25:41 -04:00
sctp sctp: fix error return code in __sctp_connect() 2013-04-07 17:04:17 -04:00
sunrpc NFS client bugfixes for Linux 3.9 2013-03-26 14:23:45 -07:00
tipc Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net 2013-04-07 18:37:01 -04:00
unix scm: Stop passing struct cred 2013-04-07 18:58:55 -04:00
vmw_vsock Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net 2013-04-07 18:37:01 -04:00
wimax
wireless Merge branch 'master' of git://git.kernel.org/pub/scm/linux/kernel/git/linville/wireless-next into for-davem 2013-04-10 10:39:27 -04:00
x25 hlist: drop the node parameter from iterators 2013-02-27 19:10:24 -08:00
xfrm Merge branch 'master' of git://git.kernel.org/pub/scm/linux/kernel/git/klassert/ipsec-next 2013-04-11 16:14:37 -04:00
Kconfig netlink: Diag core and basic socket info dumping (v2) 2013-03-21 12:38:03 -04:00
Makefile VSOCK: Introduce VM Sockets 2013-02-10 19:41:08 -05:00
compat.c
nonet.c
socket.c Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs 2013-02-26 20:16:07 -08:00
sysctl_net.c