Eric Dumazet 520ac30f45 net_sched: drop packets after root qdisc lock is released ... Qdisc performance suffers when packets are dropped at enqueue() time because drops (kfree_skb()) are done while qdisc lock is held, delaying a dequeue() draining the queue. Nominal throughput can be reduced by 50 % when this happens, at a time we would like the dequeue() to proceed as fast as possible. Even FQ is vulnerable to this problem, while one of FQ goals was to provide some flow isolation. This patch adds a 'struct sk_buff **to_free' parameter to all qdisc->enqueue(), and in qdisc_drop() helper. I measured a performance increase of up to 12 %, but this patch is a prereq so that future batches in enqueue() can fly. Signed-off-by: Eric Dumazet <edumazet@google.com> Acked-by: Jesper Dangaard Brouer <brouer@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>		2016-06-25 12:19:35 -04:00
..
6lowpan	6lowpan: add support for 802.15.4 short addr handling	2016-06-15 20:41:24 -07:00
9p	remove lots of IS_ERR_VALUE abuses	2016-05-27 15:26:11 -07:00
802
8021q	vlan: Propagate MAC address to VLANs	2016-05-31 11:56:48 -07:00
appletalk	appletalk: fix erroneous return value	2016-02-18 14:59:34 -05:00
atm	net/atm: sk_err_soft must be positive	2016-05-23 13:51:10 -07:00
ax25	ax25: add link layer header validation function	2016-03-09 22:13:01 -05:00
batman-adv	sched: remove NET_XMIT_POLICED	2016-06-12 22:02:11 -04:00
bluetooth	net: add netdev_lockdep_set_classes() helper	2016-06-09 13:28:37 -07:00
bridge	bridge: Don't insert unnecessary local fdb entry on changing mac address	2016-06-08 00:31:38 -07:00
caif	net: caif: fix misleading indentation	2016-03-14 13:09:50 -04:00
can	can: bcm: add support for CAN FD frames	2016-06-17 15:39:46 +02:00
ceph	libceph: use %s instead of %pE in dout()s	2016-05-30 23:00:23 +02:00
core	net_sched: drop packets after root qdisc lock is released	2016-06-25 12:19:35 -04:00
dcb
dccp	dccp: do not assume DCCP code is non preemptible	2016-05-02 17:02:25 -04:00
decnet	decnet: Do not build routes to devices without decnet private data.	2016-04-10 23:01:30 -04:00
dns_resolver	KEYS: Add a facility to restrict new links into a keyring	2016-04-11 22:37:37 +01:00
dsa	net: dsa: Initialize CPU port ethtool ops per tree	2016-06-08 11:23:42 -07:00
ethernet	eth: Pull header from first fragment via eth_get_headlen	2016-02-24 13:58:05 -05:00
hsr	net/hsr: Use setup_timer and mod_timer.	2016-05-16 14:00:43 -04:00
ieee802154	6lowpan: add support for 802.15.4 short addr handling	2016-06-15 20:41:24 -07:00
ipv4	ipv6: RFC 4884 partial support for SIT/GRE tunnels	2016-06-18 22:11:39 -07:00
ipv6	ipv6: RFC 4884 partial support for SIT/GRE tunnels	2016-06-18 22:11:39 -07:00
ipx
irda	TTY and Serial driver update for 4.7-rc1	2016-05-20 20:57:27 -07:00
iucv	af_iucv: use paged SKBs for big inbound messages	2016-06-15 12:21:05 -07:00
kcm	kcm: fix a signedness in kcm_splice_read()	2016-05-19 11:26:51 -07:00
key
l2tp	ipv6: use TOS marks from sockets for routing decision	2016-06-11 15:33:26 -07:00
l3mdev	net: vrf: Implement get_saddr for IPv6	2016-06-17 21:25:29 -07:00
lapb	net/lapb: tuse %*ph to dump buffers	2016-05-29 22:33:25 -07:00
llc	Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net	2016-05-09 15:59:24 -04:00
mac80211	For the next cycle, we have the following:	2016-06-10 23:13:32 -07:00
mac802154	Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next	2016-03-19 10:05:34 -07:00
mpls	mpls: allow routes on ipgre devices	2016-06-16 17:12:07 -07:00
netfilter	Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net	2016-06-10 11:52:24 -07:00
netlabel	netlabel: fix a problem with netlbl_secattr_catmap_setrng()	2016-04-05 16:10:47 -04:00
netlink	net/netlink/af_netlink.h: Remove unused structure.	2016-06-09 22:26:24 -07:00
netrom
nfc	nfc: nci: Add nci_nfcc_loopback to the nci core	2016-05-04 01:48:16 +02:00
openvswitch	openvswitch: Only set mark and labels with a commit flag.	2016-06-25 11:55:51 -04:00
packet	packet: use common code for virtio_net_hdr and skb GSO conversion	2016-06-10 23:03:56 -07:00
phonet	sock: struct proto hash function may error	2016-02-11 03:54:14 -05:00
qrtr	Merge tag 'qcom-soc-for-4.7-2' into net-next	2016-05-17 14:11:19 -04:00
rds	RDS: TCP: Fix non static symbol warnings	2016-06-17 22:28:49 -07:00
rfkill	rfkill: Use switch to demux userspace operations	2016-04-05 10:48:53 +02:00
rose
rxrpc	rxrpc: Rework local endpoint management	2016-06-15 15:38:17 +01:00
sched	net_sched: drop packets after root qdisc lock is released	2016-06-25 12:19:35 -04:00
sctp	sctp: change sk state to CLOSED instead of CLOSING in sctp_sock_migrate	2016-06-16 14:10:44 -07:00
sunrpc	NFS client updates for Linux 4.7	2016-05-26 10:33:33 -07:00
switchdev	switchdev: pass pointer to fib_info instead of copy	2016-05-17 13:58:49 -04:00
tipc	tipc: potential shift wrapping bug in map_set()	2016-06-17 21:26:03 -07:00
unix	constify security_path_{mkdir,mknod,symlink}	2016-03-28 00:47:27 -04:00
vmw_vsock	Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net	2016-05-09 15:59:24 -04:00
wimax
wireless	For the next cycle, we have the following:	2016-06-10 23:13:32 -07:00
x25	net: fix a kernel infoleak in x25 module	2016-05-09 22:45:33 -04:00
xfrm	Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net	2016-05-09 15:59:24 -04:00
compat.c	packet: compat support for sock_fprog	2016-06-09 23:41:03 -07:00
Kconfig	bpf: add generic constant blinding for use in jits	2016-05-16 13:49:32 -04:00
Makefile	net: Add Qualcomm IPC router	2016-05-08 23:46:14 -04:00
socket.c	fs: poll/select/recvmmsg: use timespec64 for timeout events	2016-05-19 19:12:14 -07:00
sysctl_net.c