Michael S. Tsirkin 5d09710925 tun: only queue packets on device ... Historically tun supported two modes of operation: - in default mode, a small number of packets would get queued at the device, the rest would be queued in qdisc - in one queue mode, all packets would get queued at the device This might have made sense up to a point where we made the queue depth for both modes the same and set it to a huge value (500) so unless the consumer is stuck the chance of losing packets is small. Thus in practice both modes behave the same, but the default mode has some problems: - if packets are never consumed, fragments are never orphaned which cases a DOS for sender using zero copy transmit - overrun errors are hard to diagnose: fifo error is incremented only once so you can not distinguish between userspace that is stuck and a transient failure, tcpdump on the device does not show any traffic Userspace solves this simply by enabling IFF_ONE_QUEUE but there seems to be little point in not doing the right thing for everyone, by default. Signed-off-by: Michael S. Tsirkin <mst@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>		2012-12-03 15:07:36 -05:00
..
accessibility
acpi	ACPI video: Ignore errors after _DOD evaluation.	2012-11-03 09:52:54 +08:00
amba
ata	SCSI fixes on 20121122	2012-11-22 09:14:54 -10:00
atm	Merge git://git.infradead.org/users/dwmw2/atm	2012-12-01 20:45:24 -05:00
auxdisplay
base	PM / QoS: fix wrong error-checking condition	2012-11-23 20:55:06 +01:00
bcma	bcma: suspend/resume callbacks should be conditionally compiled on CONFIG_PM_SLEEP	2012-10-29 15:19:31 -04:00
block	mtip32xx: Fix padding issue	2012-11-23 14:32:55 +01:00
bluetooth	Merge branch 'for-upstream' of git://git.kernel.org/pub/scm/linux/kernel/git/bluetooth/bluetooth-next	2012-11-21 13:03:00 -05:00
bus	drivers: bus: ocp2scp: add pdata support	2012-11-07 09:35:53 -08:00
cdrom
char	sonypi: suspend/resume callbacks should be conditionally compiled on CONFIG_PM_SLEEP	2012-10-25 12:05:50 -07:00
clk	clk: ux500: Register slimbus clock lookups for u8500	2012-11-12 10:20:23 -08:00
clocksource	Power management updates for 3.7-rc1	2012-10-02 18:32:35 -07:00
connector	Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next	2012-10-02 13:38:27 -07:00
cpufreq	cpufreq / powernow-k8: Change maintainer's email address	2012-10-31 21:02:57 +01:00
cpuidle	ACPI idle, CPU hotplug: Fix NULL pointer dereference during hotplug	2012-10-08 22:52:54 -04:00
crypto	ARM: soc: late platform updates	2012-10-07 20:55:16 +09:00
dca
devfreq
dio
dma	ioat: Do not enable DCA if tag map is invalid	2012-11-15 05:20:01 -08:00
edac	EDAC: Change Boris' email address	2012-10-30 10:05:51 +01:00
eisa
extcon	extcon : register for cable interest by cable name	2012-10-23 16:32:18 +09:00
firewire	[SCSI] sd: Implement support for WRITE SAME	2012-11-13 22:45:42 -08:00
firmware	firmware/memmap: avoid type conflicts with the generic memmap_init()	2012-10-19 14:07:47 -07:00
gpio	gpio-mcp23s08: Build I2C support even when CONFIG_I2C=m	2012-11-17 22:22:24 +01:00
gpu	Merge branch 'drm-fixes-3.7' of git://people.freedesktop.org/~agd5f/linux into drm-fixes	2012-11-22 13:21:57 +10:00
hid	Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jikos/hid	2012-11-16 07:58:20 -08:00
hsi
hv	Drivers: hv: Cleanup error handling in vmbus_open()	2012-10-24 15:46:27 -07:00
hwmon	hwmon: Fix chip feature table headers	2012-11-05 21:54:40 +01:00
hwspinlock
i2c	Merge branch 'i2c-embedded/for-current' of git://git.pengutronix.de/git/wsa/linux	2012-11-23 11:59:26 -10:00
ide	sections: fix section conflicts in drivers/ide	2012-10-06 03:04:41 +09:00
idle
iio	iio: Remove duplicates for light/ in Kconfig and Makefile	2012-10-19 19:44:06 +01:00
infiniband	Merge branches 'cxgb4' and 'mlx4' into for-next	2012-10-23 09:03:49 -07:00
input	Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input	2012-11-22 21:45:34 -10:00
iommu	intel-iommu: Fix lookup in add device	2012-11-17 13:27:15 +01:00
irqchip	irqchip: irq-bcm2835: Add terminating entry for of_device_id table	2012-11-06 07:37:10 -08:00
isdn	mISDN: improve bitops usage	2012-11-30 12:10:57 -05:00
leds	ledtrig-cpu: kill useless mutex to fix sleep in atomic context	2012-11-11 12:09:43 -08:00
lguest	Merge branch 'virtio-next' of git://git.kernel.org/pub/scm/linux/kernel/git/rusty/linux	2012-10-07 21:04:56 +09:00
macintosh	Merge branch 'next' of git://git.kernel.org/pub/scm/linux/kernel/git/benh/powerpc	2012-10-06 03:16:12 +09:00
md	Several bug fixes for md in 3.7	2012-11-23 12:11:13 -10:00
media	[media] rtl28xxu: 0ccd:00d7 TerraTec Cinergy T Stick+	2012-11-22 12:04:53 -02:00
memory
memstick
message
mfd	mfd: twl4030: Fix chained irq handling on resume from suspend	2012-11-21 17:46:41 +01:00
misc	pwm: Changes for v3.7-rc1	2012-10-10 20:15:24 +09:00
mmc	mmc: sdhci-s3c: fix the card detection in runtime-pm	2012-11-07 15:40:52 -05:00
mtd	Revert "mm: remove __GFP_NO_KSWAPD"	2012-11-26 17:41:24 -08:00
net	tun: only queue packets on device	2012-12-03 15:07:36 -05:00
nfc	Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net	2012-11-25 12:49:17 -05:00
nubus
of	of/platform: sparse fix	2012-10-17 15:53:03 -05:00
oprofile	mm: use mm->exe_file instead of first VM_EXECUTABLE vma->vm_file	2012-10-09 16:22:18 +09:00
parisc
parport	Xtensa patchset for 3.7	2012-10-09 16:11:46 +09:00
pci	PCI/portdrv: Don't create hotplug slots unless port supports hotplug	2012-11-05 16:59:59 -07:00
pcmcia	Merge branch 'testing/driver-warnings' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc into fixes	2012-10-19 15:40:18 -07:00
pinctrl	pinctrl/samsung: don't allow enabling pinctrl-samsung standalone	2012-11-15 11:58:24 +01:00
platform	Merge branches 'fixes-for-37', 'ec' and 'thermal' into release	2012-10-09 01:47:35 -04:00
pnp
power	Merge branch 'release' of git://git.kernel.org/pub/scm/linux/kernel/git/lenb/linux	2012-10-13 11:27:59 +09:00
pps	pps, ptp: Remove dependencies on EXPERIMENTAL	2012-11-01 11:35:17 -04:00
ps3
ptp	ptp: reduce stack usage when measuring the system time offset	2012-11-26 17:22:14 -05:00
pwm	pwm: Changes for v3.7-rc1	2012-10-10 20:15:24 +09:00
rapidio	rapidio: fix kernel-doc warnings	2012-11-16 14:33:04 -08:00
regulator	Merge remote-tracking branches 'regulator/fix/gpio', 'regulator/fix/put' and 'regulator/fix/supp-volt' into tmp	2012-11-15 11:16:02 +09:00
remoteproc	Merge branch 'virtio-next' of git://git.kernel.org/pub/scm/linux/kernel/git/rusty/linux	2012-10-07 21:04:56 +09:00
rpmsg	Merge branch 'virtio-next' of git://git.kernel.org/pub/scm/linux/kernel/git/rusty/linux	2012-10-07 21:04:56 +09:00
rtc	drivers/rtc/rtc-imxdi.c: add missing spin lock initialization	2012-10-25 14:37:53 -07:00
s390	qeth: Remove BUG_ONs	2012-11-19 14:19:00 -05:00
sbus
scsi	[SCSI] sd: Implement support for WRITE SAME	2012-11-13 22:45:42 -08:00
sfi
sh	sh: Fix up more fallout from pointless ARM __iomem churn.	2012-10-15 14:08:48 +09:00
sn
spi	spi: Some minor MXS fixes	2012-10-28 11:13:54 -07:00
ssb	ssb: handle BCM43222 in pmu code.	2012-10-29 15:30:37 -04:00
staging	Revert "Staging: Android alarm: IOCTL command encoding fix"	2012-11-13 13:04:43 -08:00
target	target: Fix incorrect usage of nested IRQ spinlocks in ABORT_TASK path	2012-11-01 00:38:45 -07:00
tc
thermal	exynos4_tmu_driver_ids should be exynos_tmu_driver_ids.	2012-11-03 09:52:55 +08:00
tty	tty vt: Fix a regression in command line edition	2012-11-21 16:45:32 -08:00
uio	mm: kill vma flag VM_RESERVED and mm->reserved_vm counter	2012-10-09 16:22:19 +09:00
usb	SCSI fixes on 20121122	2012-11-22 09:14:54 -10:00
uwb
vfio	vfio: Fix PCI INTx disable consistency	2012-10-10 09:10:32 -06:00
vhost	vhost-net: initialize zcopy packet counters	2012-12-03 13:42:17 -05:00
video	omapdss fixes for 3.7-rc	2012-11-23 12:01:02 -10:00
virt
virtio	virtio: Don't access index after unregister.	2012-11-09 14:54:24 +10:30
vlynq
vme
w1
watchdog	Merge branch 'for-next' of git://git.kernel.org/pub/scm/linux/kernel/git/gerg/m68knommu	2012-10-07 21:06:10 +09:00
xen	Bug-fix:	2012-11-20 18:52:01 -10:00
zorro
Kconfig	ARM: soc: driver specific changes	2012-10-01 18:46:13 -07:00
Makefile	IPMI: Change link order	2012-10-16 18:07:12 -07:00