Mark McLoughlin
14c998f034
virtio: virtio_net free transmit skbs in a timer ...
virtio_net currently only frees old transmit skbs just
before queueing new ones. If the queue is full, it then
enables interrupts and waits for notification that more
work has been performed.
However, a side-effect of this scheme is that there are
always xmit skbs left dangling when no new packets are
sent, against the Documentation/networking/driver.txt
guideline:
"... it is not allowed for your TX mitigation scheme
to let TX packets "hang out" in the TX ring unreclaimed
forever if no new TX packets are sent."
Add a timer to ensure that any time we queue new TX
skbs, we will shortly free them again.
This fixes an easily reproduced hang at shutdown where
iptables attempts to unload nf_conntrack and nf_conntrack
waits for an skb it is tracking to be freed, but virtio_net
never frees it.
Signed-off-by: Mark McLoughlin <markmc@redhat.com>
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
2008-06-10 18:20:31 -04:00
acorn /char
acpi: fix integer as NULL pointer warning
2008-05-23 08:11:06 -07:00
ahci: change the Device IDs of nvidia MCP7B AHCI controller in ahci.c
2008-05-30 12:40:28 -04:00
drivers/atm/: remove CVS keywords
2008-05-20 14:52:25 -07:00
driver-core: prepare for 2.6.27 api change by adding dev_set_name
2008-05-29 21:10:01 -07:00
virtio_blk: allow read-only disks
2008-05-30 15:09:44 +10:00
[POWERPC] iSeries: Remove unused mail address
2008-05-23 16:45:04 +10:00
virtio: An entropy device, as suggested by hpa.
2008-05-30 15:09:44 +10:00
[CPUFREQ] fix double unlock of cpu_policy_rwsem in drivers/cpufreq/cpufreq.c
2008-05-29 12:10:12 -04:00
iop-adma: fixup some kzalloc/memset confusions
2008-05-20 13:51:20 -07:00
edac: mpc85xx: fix building as a module
2008-05-24 09:56:13 -07:00
firewire: prevent userspace from accessing shut down devices
2008-05-20 18:24:17 +02:00
gpiolib: fix off by one errors
2008-05-24 09:56:11 -07:00
HID: remove CVS keywords
2008-05-20 16:44:43 +02:00
ibmaem: new driver for power/energy/temp meters in IBM System X hardware
2008-05-24 09:56:08 -07:00
i2c/max6875: Really prevent 24RF08 corruption
2008-05-18 20:49:41 +02:00
ide: fix race in device_create
2008-05-20 13:31:54 -07:00
ieee1394: sbp2: use correct size of command descriptor block
2008-05-20 18:24:17 +02:00
Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/roland/infiniband
2008-05-23 11:11:44 -07:00
Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input
2008-05-30 10:17:19 -07:00
isdn: fix integer as NULL pointer warning
2008-05-23 08:11:06 -07:00
LEDS: fix race in device_create
2008-05-20 13:31:55 -07:00
virtio: set device index in common code.
2008-05-30 15:09:42 +10:00
[POWERPC] macintosh: Replace deprecated __initcall with device_initcall
2008-05-15 20:50:00 +10:00
md: restart recovery cleanly after device failure.
2008-05-24 09:56:10 -07:00
tuner: Do not alter i2c_client.name
2008-05-26 16:08:40 +02:00
HTC_EGPIO is ARM-only
2008-05-21 16:56:00 -07:00
acpi: fix sparse const errors
2008-05-30 07:43:24 -07:00
missing dependencies on HAS_DMA
2008-05-21 16:55:59 -07:00
ck804rom: fix driver_data in probe table.
2008-05-27 07:34:38 -07:00
virtio: virtio_net free transmit skbs in a timer
2008-06-10 18:20:31 -04:00
[POWERPC] Add null pointer check to of_find_property
2008-05-15 20:49:49 +10:00
oprofile: don't request cache line alignment for cpu_buffer
2008-05-14 19:11:12 -07:00
drivers/parisc: replace remaining __FUNCTION__ occurrences
2008-05-15 10:38:54 -04:00
PCI: fix rpadlpar pci hotplug driver sysfs usage
2008-05-30 09:50:46 -07:00
electra_cf: Add MODULE_DEVICE_TABLE()
2008-05-27 16:07:45 -05:00
Clean up 'print_fn_descriptor_symbol()' types
2008-05-15 17:50:37 -07:00
Power Supply: fix race in device_create
2008-05-20 13:31:55 -07:00
rtc: m41t80: include <linux/kernel.h> for printk()
2008-05-13 08:02:26 -07:00
Merge git://git.kernel.org/pub/scm/linux/kernel/git/rusty/linux-2.6-for-linus
2008-05-30 10:20:03 -07:00
sbus bpp: instances missed in s/dev_name/bpp_dev_name/
2008-05-21 16:55:59 -07:00
scsi: fix integer as NULL pointer warning
2008-05-23 08:11:07 -07:00
8250 Serial Driver: revert extra IRQ flag definition patch
2008-05-31 16:10:04 +08:00
spi: remove some spidev oops-on-rmmod paths
2008-05-24 09:56:14 -07:00
ssb: Fix context assertion in ssb_pcicore_dev_irqvecs_enable
2008-06-04 15:57:10 -04:00
UIO: fix race in device_create
2008-05-20 13:31:55 -07:00
Revert "USB: EHCI: fix performance regression"
2008-05-29 19:43:27 -07:00
Merge branch 'for-linus' of master.kernel.org:/home/rmk/linux-2.6-arm
2008-05-24 10:13:16 -07:00
virtio: force callback on empty.
2008-05-30 15:09:46 +10:00
drivers/watchdog/geodewdt.c: build fix
2008-05-30 10:16:58 -07:00
14c998f034