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762c330d67
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Jason Wang 762c330d67 tuntap: add missing xdp flush 
When using devmap to redirect packets between interfaces,
xdp_do_flush() is usually a must to flush any batched
packets. Unfortunately this is missed in current tuntap
implementation.

Unlike most hardware driver which did XDP inside NAPI loop and call
xdp_do_flush() at then end of each round of poll. TAP did it in the
context of process e.g tun_get_user(). So fix this by count the
pending redirected packets and flush when it exceeds NAPI_POLL_WEIGHT
or MSG_MORE was cleared by sendmsg() caller.

With this fix, xdp_redirect_map works again between two TAPs.

Fixes: 761876c857 ("tap: XDP support")
Signed-off-by: Jason Wang <jasowang@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2018-02-08 14:10:30 -05:00
..
accessibility
acpi platform-drivers-x86 for v4.16-1 2018-02-06 15:30:52 -08:00
amba
android Char/Misc driver patches for 4.16-rc1 2018-02-01 10:31:17 -08:00
ata pci-v4.16-changes 2018-02-06 09:59:40 -08:00
atm
auxdisplay
base drm/graphics pull request for v4.16-rc1 2018-02-01 17:48:47 -08:00
bcma
block pci-v4.16-changes 2018-02-06 09:59:40 -08:00
bluetooth Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next 2018-01-31 14:31:10 -08:00
bus ARM: SoC driver updates for 4.16 2018-02-01 16:35:31 -08:00
cdrom
char pci-v4.16-changes 2018-02-06 09:59:40 -08:00
clk The core framework has a handful of patches this time around, mostly due 2018-02-01 16:56:07 -08:00
clocksource
connector
cpufreq
cpuidle powerpc updates for 4.16 2018-02-02 10:01:04 -08:00
crypto Merge branch 'linus' of git://git.kernel.org/pub/scm/linux/kernel/git/herbert/crypto-2.6 2018-01-31 14:22:45 -08:00
dax Merge branch 'for-4.16/dax' into libnvdimm-for-next 2018-02-03 00:26:10 -07:00
dca
devfreq
dio
dma Merge branch 'for-linus' of git://git.armlinux.org.uk/~rmk/linux-arm 2018-02-02 09:50:51 -08:00
dma-buf drm/graphics pull request for v4.16-rc1 2018-02-01 17:48:47 -08:00
edac
eisa EISA: Delete error message for a failed memory allocation in eisa_probe() 2018-01-23 09:04:10 +01:00
extcon
firewire IEEE 1394 subsystem patches: 2018-02-02 14:57:44 -08:00
firmware pci-v4.16-changes 2018-02-06 09:59:40 -08:00
fmc
fpga
fsi
gpio This is the bulk of pin control changes for the v4.16 kernel cycle: 2018-02-02 14:22:53 -08:00
gpu pci-v4.16-changes 2018-02-06 09:59:40 -08:00
hid Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jikos/hid 2018-01-31 13:00:01 -08:00
hsi HSI changes for the v4.16 series 2018-01-31 12:54:05 -08:00
hv Char/Misc driver patches for 4.16-rc1 2018-02-01 10:31:17 -08:00
hwmon hwmon: (dell-smm) Disable fan support for Dell Vostro 3360 2018-01-27 09:34:22 -08:00
hwspinlock
hwtracing Char/Misc driver patches for 4.16-rc1 2018-02-01 10:31:17 -08:00
i2c Merge branch 'i2c/for-4.16' of git://git.kernel.org/pub/scm/linux/kernel/git/wsa/linux 2018-02-04 10:57:43 -08:00
ide pci-v4.16-changes 2018-02-06 09:59:40 -08:00
idle
iio Staging/IIO patches for 4.16-rc1 2018-02-01 09:51:57 -08:00
infiniband Second pull request for 4.16 merge window 2018-02-06 11:09:45 -08:00
input Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input 2018-02-01 10:49:58 -08:00
iommu pci-v4.16-changes 2018-02-06 09:59:40 -08:00
ipack
irqchip pci-v4.16-changes 2018-02-06 09:59:40 -08:00
isdn Merge branch 'work.sock_recvmsg' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs 2018-01-30 18:59:03 -08:00
leds LED updates for 4.16-rc1 2018-01-31 12:22:41 -08:00
lightnvm
macintosh pci-v4.16-changes 2018-02-06 09:59:40 -08:00
mailbox Misc driver changes only : 2018-02-04 11:11:23 -08:00
mcb
md for-linus-20180204 2018-02-04 11:16:35 -08:00
media media: videobuf2: fix up for "media: annotate ->poll() instances" 2018-02-06 14:24:51 -08:00
memory ARM: SoC driver updates for 4.16 2018-02-01 16:35:31 -08:00
memstick
message
mfd regmap: Updates for v4.16 2018-01-29 11:35:24 -08:00
misc Merge branch 'i2c/for-4.16' of git://git.kernel.org/pub/scm/linux/kernel/git/wsa/linux 2018-02-04 10:57:43 -08:00
mmc MMC host: 2018-02-05 09:51:15 -08:00
mtd dma mapping changes for Linux 4.16: 2018-01-31 11:32:27 -08:00
mux Char/Misc driver patches for 4.16-rc1 2018-02-01 10:31:17 -08:00
net tuntap: add missing xdp flush 2018-02-08 14:10:30 -05:00
nfc
ntb NTB: ntb_perf: fix cast to restricted __le32 2018-01-28 22:17:24 -05:00
nubus
nvdimm Merge branch 'for-4.16/nfit' into libnvdimm-for-next 2018-02-03 00:26:26 -07:00
nvme for-linus-20180204 2018-02-04 11:16:35 -08:00
nvmem
of pci-v4.16-changes 2018-02-06 09:59:40 -08:00
opp
oprofile
parisc
parport
pci pci-v4.16-changes 2018-02-06 09:59:40 -08:00
pcmcia
perf bitmap: replace bitmap_{from,to}_u32array 2018-02-06 18:32:44 -08:00
phy USB/PHY updates for 4.16-rc1 2018-02-01 09:40:49 -08:00
pinctrl This is the bulk of pin control changes for the v4.16 kernel cycle: 2018-02-02 14:22:53 -08:00
platform platform-drivers-x86 for v4.16-1 2018-02-06 15:30:52 -08:00
pnp
power power supply and reset changes for the v4.16 series 2018-01-31 12:55:31 -08:00
powercap
pps pps: parport: use timespec64 instead of timespec 2018-02-06 18:32:46 -08:00
ps3
ptp
pwm
rapidio drivers/rapidio/devices/tsi721_dma.c: adjust six checks for null pointers 2018-02-06 18:32:46 -08:00
ras mm/memory_failure: Remove unused trapno from memory_failure 2018-01-23 12:17:42 -06:00
regulator Merge remote-tracking branch 'regulator/topic/tps65218' into regulator-next 2018-01-26 17:57:05 +00:00
remoteproc remoteproc updates for v4.16 2018-02-05 10:07:40 -08:00
reset
rpmsg rpmsg updates for v4.16 2018-02-05 10:05:40 -08:00
rtc RTC for 4.16 2018-02-02 14:19:19 -08:00
s390 libnvdimm for 4.16 2018-02-06 10:41:33 -08:00
sbus pci-v4.16-changes 2018-02-06 09:59:40 -08:00
scsi for-linus-20180204 2018-02-04 11:16:35 -08:00
sfi
sh
siox
slimbus
sn
soc ARM: SoC driver updates for 4.16 2018-02-01 16:35:31 -08:00
soundwire soundwire: Fix a signedness bug 2018-01-22 16:45:26 +01:00
spi Merge remote-tracking branch 'spi/topic/xilinx' into spi-next 2018-01-26 17:57:34 +00:00
spmi
ssb
staging media updates for v4.16-rc1 2018-02-06 11:27:48 -08:00
target Merge branch 'for-4.16/block' of git://git.kernel.dk/linux-block 2018-01-29 11:51:49 -08:00
tc
tee
thermal Merge branch 'next' of git://git.kernel.org/pub/scm/linux/kernel/git/rzhang/linux 2018-02-06 15:04:58 -08:00
thunderbolt
tty Driver Core updates for 4.16-rc1 2018-02-01 10:00:28 -08:00
uio Char/Misc driver patches for 4.16-rc1 2018-02-01 10:31:17 -08:00
usb pinctrl: files should directly include apis they use 2018-02-05 09:41:54 -08:00
uwb
vfio VFIO updates for v4.16-rc1 2018-02-01 13:18:25 -08:00
vhost Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next 2018-01-31 14:31:10 -08:00
video pci-v4.16-changes 2018-02-06 09:59:40 -08:00
virt Char/Misc driver patches for 4.16-rc1 2018-02-01 10:31:17 -08:00
virtio
visorbus
vlynq
vme
w1 Documentation updates for 4.16. New stuff includes refcount_t 2018-01-31 19:25:25 -08:00
watchdog
xen dma mapping changes for Linux 4.16: 2018-01-31 11:32:27 -08:00
zorro
Kconfig Char/Misc driver patches for 4.16-rc1 2018-02-01 10:31:17 -08:00
Makefile pci-v4.16-changes 2018-02-06 09:59:40 -08:00