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f52ed89971
linux/net
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Eric Dumazet f52ed89971 pkt_sched: fq: fix pacing for small frames 
For performance reasons, sch_fq tried hard to not setup timers for every
sent packet, using a quantum based heuristic : A delay is setup only if
the flow exhausted its credit.

Problem is that application limited flows can refill their credit
for every queued packet, and they can evade pacing.

This problem can also be triggered when TCP flows use small MSS values,
as TSO auto sizing builds packets that are smaller than the default fq
quantum (3028 bytes)

This patch adds a 40 ms delay to guard flow credit refill.

Fixes: afe4fd0624 ("pkt_sched: fq: Fair Queue packet scheduler")
Signed-off-by: Eric Dumazet <edumazet@google.com>
Cc: Maciej Żenczykowski <maze@google.com>
Cc: Willem de Bruijn <willemb@google.com>
Cc: Yuchung Cheng <ycheng@google.com>
Cc: Neal Cardwell <ncardwell@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2013-11-15 21:01:52 -05:00
..
9p file->f_op is never NULL... 2013-10-24 23:34:54 -04:00
802 mrp: add periodictimer to allow retries when packets get lost 2013-09-23 16:53:52 -04:00
8021q vlan: Implement vlan_dev_get_egress_qos_mask as an inline. 2013-11-11 00:42:07 -05:00
appletalk net: proc_fs: trivial: print UIDs as unsigned int 2013-08-15 14:37:46 -07:00
atm
ax25 ax25: cleanup a range test 2013-10-18 13:56:07 -04:00
batman-adv batman-adv: generalize batman-adv icmp packet handling 2013-10-23 17:03:47 +02:00
bluetooth Merge branch 'master' of git://git.kernel.org/pub/scm/linux/kernel/git/linville/wireless-next into for-davem 2013-11-08 09:03:10 -05:00
bridge bridge: Fix memory leak when deleting bridge with vlan filtering enabled 2013-11-14 16:16:34 -05:00
caif caif: use pskb_put() instead of reimplementing its functionality 2013-11-07 19:28:59 -05:00
can net: 8021q/bluetooth/bridge/can/ceph: Remove extern from function prototypes 2013-10-19 19:12:11 -04:00
ceph net: 8021q/bluetooth/bridge/can/ceph: Remove extern from function prototypes 2013-10-19 19:12:11 -04:00
core macvlan: disable LRO on lower device instead of macvlan 2013-11-15 17:55:48 -05:00
dcb
dccp ipv4: introduce new IP_MTU_DISCOVER mode IP_PMTUDISC_INTERFACE 2013-11-05 21:52:27 -05:00
decnet netfilter: pass hook ops to hookfn 2013-10-14 11:29:31 +02:00
dns_resolver
dsa net: dsa: inherit addr_assign_type along with dev_addr 2013-09-03 20:57:49 -04:00
ethernet ethernet: use likely() for common Ethernet encap 2013-09-30 21:52:53 -07:00
hsr net/hsr: Fix possible leak in 'hsr_get_node_status()' 2013-11-14 17:26:21 -05:00
ieee802154 6lowpan: Uncompression of traffic class field was incorrect 2013-11-15 03:11:06 -05:00
ipv4 ipv4: fix possible seqlock deadlock 2013-11-14 17:31:14 -05:00
ipv6 ip6tnl: fix use after free of fb_tnl_dev 2013-11-14 17:04:38 -05:00
ipx net: proc_fs: trivial: print UIDs as unsigned int 2013-08-15 14:37:46 -07:00
irda genetlink: make all genl_ops users const 2013-11-14 17:10:41 -05:00
iucv
key xfrm: Guard IPsec anti replay window against replay bitmap 2013-09-17 12:17:10 +02:00
l2tp genetlink: make all genl_ops users const 2013-11-14 17:10:41 -05:00
lapb net/lapb: re-send packets on timeout 2013-09-23 16:52:45 -04:00
llc llc: Use normal etherdevice.h tests 2013-09-03 22:34:47 -04:00
mac80211 Merge branch 'master' of git://git.kernel.org/pub/scm/linux/kernel/git/linville/wireless-next into for-davem 2013-11-08 09:03:10 -05:00
mac802154 6lowpan: set and use mac_len for mac header length 2013-10-30 17:18:46 -04:00
mpls ipip: add GSO/TSO support 2013-10-19 19:36:19 -04:00
netfilter genetlink: make all genl_ops users const 2013-11-14 17:10:41 -05:00
netlabel genetlink: make all genl_ops users const 2013-11-14 17:10:41 -05:00
netlink genetlink: unify registration functions 2013-11-15 20:50:23 -05:00
netrom
nfc genetlink: make all genl_ops users const 2013-11-14 17:10:41 -05:00
openvswitch genetlink: make all genl_ops users const 2013-11-14 17:10:41 -05:00
packet net: packet: use reciprocal_divide in fanout_demux_hash 2013-08-29 16:43:29 -04:00
phonet net: proc_fs: trivial: print UIDs as unsigned int 2013-08-15 14:37:46 -07:00
rds inet: convert inet_ehash_secret and ipv6_hash_secret to net_get_random_once 2013-10-19 19:45:35 -04:00
rfkill net: rfkill: gpio: add ACPI support 2013-10-28 15:05:25 +01:00
rose
rxrpc net: misc: Remove extern from function prototypes 2013-10-19 19:12:11 -04:00
sched pkt_sched: fq: fix pacing for small frames 2013-11-15 21:01:52 -05:00
sctp net: sctp: bug-fixing: retran_path not set properly after transports recovering (v3) 2013-11-14 16:35:09 -05:00
sunrpc Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next 2013-11-13 17:40:34 +09:00
tipc tipc: fix dereference before check warning 2013-11-15 03:11:06 -05:00
unix net: unix: inherit SOCK_PASS{CRED, SEC} flags from socket to fix race 2013-10-19 18:50:15 -04:00
vmw_vsock Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net 2013-08-16 15:37:26 -07:00
wimax genetlink: make all genl_ops users const 2013-11-14 17:10:41 -05:00
wireless genetlink: make all genl_ops users const 2013-11-14 17:10:41 -05:00
x25 net: x25: Fix dead URLs in Kconfig 2013-10-29 17:35:17 -04:00
xfrm net: move pskb_put() to core code 2013-11-07 19:28:58 -05:00
compat.c net: heap overflow in __audit_sockaddr() 2013-10-03 16:05:14 -04:00
Kconfig net/hsr: Add support for the High-availability Seamless Redundancy protocol (HSRv0) 2013-11-03 23:20:14 -05:00
Makefile net/hsr: Add support for the High-availability Seamless Redundancy protocol (HSRv0) 2013-11-03 23:20:14 -05:00
nonet.c
socket.c net: heap overflow in __audit_sockaddr() 2013-10-03 16:05:14 -04:00
sysctl_net.c net: Update the sysctl permissions handler to test effective uid/gid 2013-10-07 15:57:56 -04:00