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5f1a485d59
linux-kernel-test/net
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Peter P Waskiewicz Jr 5f1a485d59 [PKT_SCHED]: Check subqueue status before calling hard_start_xmit 
The only qdiscs that check subqueue state before dequeue'ing are PRIO
and RR.  The other qdiscs, including the default pfifo_fast qdisc,
will allow traffic bound for subqueue 0 through to hard_start_xmit.
The check for netif_queue_stopped() is done above in pkt_sched.h, so
it is unnecessary for qdisc_restart().  However, if the underlying
driver is multiqueue capable, and only sets queue states on subqueues,
this will allow packets to enter the driver when it's currently unable
to process packets, resulting in expensive requeues and driver
entries.  This patch re-adds the check for the subqueue status before
calling hard_start_xmit, so we can try and avoid the driver entry when
the queues are stopped.

Signed-off-by: Peter P Waskiewicz Jr <peter.p.waskiewicz.jr@intel.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2007-11-13 20:40:55 -08:00
..
9p 9p: add missing end-of-options record for trans_fd 2007-11-06 08:02:53 -06:00
802 [NET]: Move hardware header operations out of netdevice. 2007-10-10 16:52:52 -07:00
8021q [VLAN]: Allow setting mac address while device is up 2007-11-10 21:52:35 -08:00
appletalk [NET]: Forget the zero_it argument of sk_alloc() 2007-11-01 00:39:31 -07:00
atm [NET]: Forget the zero_it argument of sk_alloc() 2007-11-01 00:39:31 -07:00
ax25 [NET]: Forget the zero_it argument of sk_alloc() 2007-11-01 00:39:31 -07:00
bluetooth [NET]: Forget the zero_it argument of sk_alloc() 2007-11-01 00:39:31 -07:00
bridge [NETFILTER]: bridge: fix double POSTROUTING hook invocation 2007-11-13 02:58:44 -08:00
core [NET]: Move unneeded data to initdata section. 2007-11-13 03:23:50 -08:00
dccp [INET]: Remove per bucket rwlock in tcp/dccp ehash table. 2007-11-07 04:15:11 -08:00
decnet [INET]: Small possible memory leak in FIB rules 2007-11-10 22:12:03 -08:00
econet [NET]: Forget the zero_it argument of sk_alloc() 2007-11-01 00:39:31 -07:00
ethernet [NET]: Validate device addr prior to interface-up 2007-10-23 21:27:50 -07:00
ieee80211 softmac: fix wext MLME request reason code endianness 2007-11-10 21:58:41 -08:00
ipv4 [NETFILTER]: nf_nat: fix memset error 2007-11-13 02:57:16 -08:00
ipv6 [IPV6]: Add ifindex field to ND user option messages. 2007-11-12 17:58:35 -08:00
ipx [IPX]: Use existing sock refcnt debugging infrastructure 2007-11-10 21:39:26 -08:00
irda [IRDA] IRNET: Fix build when TCGETS2 is defined. 2007-11-01 02:26:38 -07:00
iucv [NET]: Forget the zero_it argument of sk_alloc() 2007-11-01 00:39:31 -07:00
key [NET]: Forget the zero_it argument of sk_alloc() 2007-11-01 00:39:31 -07:00
lapb [PATCH] remove many unneeded #includes of sched.h 2007-02-14 08:09:54 -08:00
llc [NET]: Forget the zero_it argument of sk_alloc() 2007-11-01 00:39:31 -07:00
mac80211 mac80211: fix MAC80211_RCSIMPLE Kconfig 2007-11-10 22:01:42 -08:00
netfilter [NETFILTER]: xt_time should not assume CONFIG_KTIME_SCALAR 2007-11-13 03:49:53 -08:00
netlabel [NetLabel]: correct usage of RCU locking 2007-10-26 04:29:08 -07:00
netlink [NET]: Move unneeded data to initdata section. 2007-11-13 03:23:50 -08:00
netrom [NET]: Forget the zero_it argument of sk_alloc() 2007-11-01 00:39:31 -07:00
packet [AF_PACKET]: Fix minor code duplication 2007-11-12 21:05:20 -08:00
rfkill rfkill: Fix sparse warning 2007-11-10 22:00:28 -08:00
rose [NET]: Forget the zero_it argument of sk_alloc() 2007-11-01 00:39:31 -07:00
rxrpc [NET]: Add the helper kernel_sock_shutdown() 2007-11-12 18:10:39 -08:00
sched [PKT_SCHED]: Check subqueue status before calling hard_start_xmit 2007-11-13 20:40:55 -08:00
sctp Fix memory leak in discard case of sctp_sf_abort_violation() 2007-11-12 10:13:24 -05:00
sunrpc [SG] Get rid of __sg_mark_end() 2007-11-02 08:47:06 +01:00
tipc [NET]: Forget the zero_it argument of sk_alloc() 2007-11-01 00:39:31 -07:00
unix [UNIX]: The unix_nr_socks limit can be exceeded 2007-11-10 22:08:30 -08:00
wanrouter [NET]: Make /proc/net per network namespace 2007-10-10 16:49:06 -07:00
wireless Driver core: change add_uevent_var to use a struct 2007-10-12 14:51:01 -07:00
x25 [NET]: Forget the zero_it argument of sk_alloc() 2007-11-01 00:39:31 -07:00
xfrm cleanup asm/scatterlist.h includes 2007-11-02 08:47:06 +01:00
compat.c O_CLOEXEC for SCM_RIGHTS 2007-07-16 09:05:45 -07:00
Kconfig [NET]: Add network namespace clone & unshare support. 2007-10-10 16:52:46 -07:00
Makefile 9p: Reorganization of 9p file system code 2007-07-14 15:13:40 -05:00
nonet.c
socket.c [NET]: Add the helper kernel_sock_shutdown() 2007-11-12 18:10:39 -08:00
sysctl_net.c
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