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Jason Wang f5755c0e87 vhost_net: correctly check tx avail during rx busy polling ... [ Upstream commit 8b949bef91 ] We check tx avail through vhost_enable_notify() in the past which is wrong since it only checks whether or not guest has filled more available buffer since last avail idx synchronization which was just done by vhost_vq_avail_empty() before. What we really want is checking pending buffers in the avail ring. Fix this by calling vhost_vq_avail_empty() instead. This issue could be noticed by doing netperf TCP_RR benchmark as client from guest (but not host). With this fix, TCP_RR from guest to localhost restores from 1375.91 trans per sec to 55235.28 trans per sec on my laptop (Intel(R) Core(TM) i7-5600U CPU @ 2.60GHz). Fixes: 0308813724 ("vhost_net: basic polling support") Signed-off-by: Jason Wang <jasowang@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>		History 2017-09-20 08:19:56 +02:00
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accessibility	printk: move braille console support into separate braille.[ch] files	2013-07-31 14:41:03 -07:00
acpi	ACPI: EC: Fix regression related to wrong ECDT initialization order	2017-08-30 10:21:56 +02:00
amba	ARM: 8596/1: amba: Support clk parents and rates assigned in DT	2016-08-12 16:47:07 +01:00
android	ANDROID: binder: fix proc->tsk check.	2017-08-30 10:21:53 +02:00
ata	cs5536: add support for IDE controller variant	2017-09-09 17:39:41 +02:00
atm	atm: fix improper return value	2016-12-05 14:53:46 -05:00
auxdisplay	auxdisplay: img-ascii-lcd: add missing sentinel entry in img_ascii_lcd_matches	2017-03-30 09:41:27 +02:00
base	driver core: bus: Fix a potential double free	2017-09-09 17:39:38 +02:00
bcma	bcma: use (get|put)_device when probing/removing device driver	2017-03-12 06:41:52 +01:00
block	xen-blkfront: use a right index when checking requests	2017-08-24 17:12:20 -07:00
bluetooth	Bluetooth: Add support of 13d3:3494 RTL8723BE device	2017-09-09 17:39:40 +02:00
bus	bus: vexpress-config: fix device reference leak	2017-01-19 20:18:07 +01:00
cdrom	cdrom: support read sub-channel command in LBA format	2016-07-12 08:24:50 -07:00
char	ipmi/watchdog: fix watchdog timeout set on reboot	2017-08-06 18:59:43 -07:00
clk	clk/samsung: exynos542x: mark some clocks as critical	2017-08-11 08:49:35 -07:00
clocksource	clocksource/drivers/arm_arch_timer: Don't assume clock runs in suspend	2017-04-12 12:41:16 +02:00
connector	connector: make cn_proc explicitly non-modular	2016-07-05 11:40:47 -07:00
cpufreq	cpufreq: s3c2416: double free on driver init error path	2017-07-05 14:40:30 +02:00
cpuidle	Merge branch 'upstream' of git://git.linux-mips.org/pub/scm/ralf/upstream-linus	2016-10-15 09:26:12 -07:00
crypto	crypto: ixp4xx - Fix error handling path in 'aead_perform()'	2017-08-24 17:12:18 -07:00
dax	device-dax: fix sysfs duplicate warnings	2017-08-06 18:59:43 -07:00
dca	dmaengine: ioatdma: constify dca_ops structures	2015-11-16 09:27:32 +05:30
devfreq	PM / devfreq: Fix wrong trans_stat of passive devfreq device	2017-03-12 06:41:44 +01:00
dio	m68k: don't export static inline functions	2009-12-06 11:18:28 +01:00
dma	dmaengine: ti-dma-crossbar: Add some 'of_node_put()' in error path.	2017-08-06 18:59:46 -07:00
dma-buf	dma-buf: add support for compat ioctl	2017-04-18 07:11:50 +02:00
edac	* Altera Arria10 enablement of NAND, DMA, USB, QSPI and SD-MMC FIFO	2016-10-04 12:06:26 -07:00
eisa	Revert "EISA: Initialize device before its resources"	2014-01-17 14:57:29 -07:00
extcon	extcon: return error code on failure	2017-01-19 20:18:03 +01:00
firewire	firewire: net: fix fragmented datagram_size off-by-one	2016-11-03 14:46:39 +01:00
firmware	efi/libstub: Skip GOP with PIXEL_BLT_ONLY format	2017-04-21 09:31:20 +02:00
fmc	Merge 3.14-rc5 into char-misc-next	2014-03-02 19:53:09 -08:00
fpga	fpga manager: Add hardware dependency to Zynq driver	2016-09-08 17:31:44 +02:00
gpio	gpiolib: skip unwanted events, don't convert them to opposite edge	2017-08-11 08:49:30 -07:00
gpu	drm/bridge: adv7511: Switch to using drm_kms_helper_hotplug_event()	2017-09-09 17:39:42 +02:00
hid	HID: ignore Petzl USB headlamp	2017-08-06 18:59:49 -07:00
hsi	HSI: omap_ssi: drop pm_runtime_irq_safe	2016-06-28 00:40:08 +02:00
hv	Drivers: hv: vmbus: Don't leak memory when a channel is rescinded	2017-03-30 09:41:27 +02:00
hwmon	hwmon: (it87) Fix pwm4 detection for IT8620 and IT8628	2017-05-14 14:00:13 +02:00
hwspinlock	hwspinlock: qcom_hwspinlock: add missing of_node_put after calling of_parse_phandle	2016-07-06 12:20:34 -07:00
hwtracing	intel_th: pci: Add Cannon Lake PCH-LP support	2017-09-09 17:39:39 +02:00
i2c	i2c: ismt: Return EMSGSIZE for block reads with bogus length	2017-09-07 08:35:39 +02:00
ide	Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/ide	2016-07-29 13:29:06 -07:00
idle	x86/intel_idle: Add CPU model 0x4a (Atom Z34xx series)	2017-04-12 12:41:17 +02:00
iio	iio: adc: ti-ads1015: add adequate wait time to get correct conversion	2017-09-09 17:39:38 +02:00
infiniband	iw_cxgb4: do not send RX_DATA_ACK CPLs after close/abort	2017-08-11 08:49:36 -07:00
input	Input: trackpoint - assume 3 buttons when buttons detection fails	2017-09-09 17:39:39 +02:00
iommu	iommu/amd: Enable ga_log_intr when enabling guest_mode	2017-08-11 08:49:30 -07:00
ipack	ipack: print a hex number after a 0x prefix	2016-10-27 18:43:43 -07:00
irqchip	irqchip: mips-gic: SYNC after enabling GIC region	2017-09-07 08:35:39 +02:00
isdn	isdn/i4l: fix buffer overflow	2017-08-06 18:59:42 -07:00
leds	Revert "leds: handle suspend/resume in heartbeat trigger"	2017-08-30 10:21:51 +02:00
lguest	Merge branch 'x86/urgent' into x86/asm to pick up dependent fixes	2016-04-13 11:36:44 +02:00
lightnvm	Merge branch 'for-4.9/block' of git://git.kernel.dk/linux-block	2016-10-07 14:42:05 -07:00
macintosh	powerpc: Remove all usages of NO_IRQ	2016-09-20 20:57:12 +10:00
mailbox	mailbox: handle empty message in tx_tick	2017-08-06 18:59:42 -07:00
mcb	MCB: add support for SC31 to mcb-lpc	2017-09-09 17:39:41 +02:00
md	md/raid5: add thread_group worker async_tx_issue_pending_all	2017-08-06 18:59:40 -07:00
media	saa7164: fix double fetch PCIe access condition	2017-08-11 08:49:31 -07:00
memory	memory/atmel-ebi: Fix ns <-> cycles conversions	2017-03-15 10:02:45 +08:00
memstick	memstick: rtsx_usb_ms: Manage runtime PM when accessing the device	2016-10-17 15:43:05 +02:00
message	scsi: fusion: Fix error return code in mptfc_probe()	2016-09-14 14:26:19 -04:00
mfd	mfd: omap-usb-tll: Fix inverted bit use for USB TLL mode	2017-06-24 07:11:14 +02:00
misc	scsi: ses: do not add a device to an enclosure if enclosure_add_links() fails.	2017-07-27 15:07:59 -07:00
mmc	mmc: mmc: correct the logic for setting HS400ES signal voltage	2017-08-16 13:43:17 -07:00
mtd	mtd: nand: qcom: fix config error for BCH	2017-09-13 14:13:36 -07:00
net	gianfar: Fix Tx flow control deactivation	2017-09-20 08:19:56 +02:00
nfc	nfc: fdp: fix NULL pointer dereference	2017-08-06 18:59:42 -07:00
ntb	ntb: transport shouldn't disable link due to bogus values in SPADs	2017-08-30 10:21:55 +02:00
nubus	nubus: Remove superfluous interrupt disable/restore	2014-10-27 11:03:19 +01:00
nvdimm	libnvdimm: fix badblock range handling of ARS range	2017-07-27 15:08:02 -07:00
nvme	nvme-fabrics: generate spec-compliant UUID NQNs	2017-09-13 14:13:36 -07:00
nvmem	nvmem: imx-ocotp: Fix wrong register size	2017-08-06 18:59:48 -07:00
of	of: device: Export of_device_{get_modalias, uvent_modalias} to modules	2017-07-27 15:08:08 -07:00
oprofile	Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs	2016-10-10 20:16:43 -07:00
parisc	parisc: pci memory bar assignment fails with 64bit kernels on dino/cujo	2017-08-24 17:12:18 -07:00
parport	parisc, parport_gsc: Fixes for printk continuation lines	2017-06-17 06:41:54 +02:00
pci	PCI/PM: Restore the status of PCI devices across hibernation	2017-07-27 15:08:00 -07:00
pcmcia	pcmcia: fix return value of soc_pcmcia_regulator_set	2016-11-11 08:45:08 -08:00
perf	perf: xgene: Remove bogus IS_ERR() check	2016-10-17 15:50:07 +01:00
phy	phy: qcom-usb-hs: Add depends on EXTCON	2017-05-14 14:00:19 +02:00
pinctrl	pinctrl: meson-gxbb: Add missing GPIODV_18 pin entry	2017-08-16 13:43:24 -07:00
platform	platform/x86: ideapad-laptop: handle ACPI event 1	2017-07-05 14:40:23 +02:00
pnp	PNP: isapnp: make core more explicitly non-modular	2016-08-16 22:53:59 +02:00
power	power: supply: bq24190_charger: Handle fault before status on interrupt	2017-05-14 14:00:15 +02:00
powercap	powercap/intel_rapl: fix and tidy up error handling	2017-01-19 20:18:07 +01:00
pps	pps: kc: fix non-tickless system config dependency	2016-10-11 15:06:32 -07:00
ps3	powerpc: Remove all usages of NO_IRQ	2016-09-20 20:57:12 +10:00
ptp	drivers/ptp: Fix kernel memory disclosure	2016-10-13 10:20:06 -04:00
pwm	pwm: rockchip: State of PWM clock should synchronize with PWM enabled state	2017-04-21 09:31:22 +02:00
rapidio	mm: replace get_user_pages() write/force parameters with gup_flags	2016-10-19 08:11:43 -07:00
ras	x86/ras: Move AMD MCE injector to arch/x86/ras/	2015-08-13 10:12:54 +02:00
regulator	regulator: tps65086: Fix DT node referencing in of_parse_cb	2017-07-05 14:40:29 +02:00
remoteproc	remoteproc: qcom: mdt_loader: Don't overwrite firmware object	2017-03-12 06:41:50 +01:00
reset	reset: uniphier: rename MIO reset to SD reset for Pro5, PXs2, LD20 SoCs	2016-10-22 18:31:42 +09:00
rpmsg	rpmsg: virtio_rpmsg_bus: fix channel creation	2017-01-26 08:24:44 +01:00
rtc	rtc: tegra: Implement clock handling	2017-04-21 09:31:24 +02:00
s390	s390/qeth: add missing hash table initializations	2017-06-07 12:07:43 +02:00
sbus	openprom: fix warning	2016-05-20 18:33:37 -07:00
scsi	scsi: sg: recheck MMAP_IO request length with lock held	2017-09-09 17:39:42 +02:00
sfi	SFI: fix compiler warnings	2014-12-03 18:49:20 -05:00
sh	drivers: sh: Stop using the legacy clock domain on ARM	2016-05-30 09:41:11 +09:00
sn	Drivers: misc: remove __dev* attributes.	2013-01-03 15:57:16 -08:00
soc	soc: ti: wkup_m3_ipc: Fix error return code in wkup_m3_ipc_probe()	2017-01-26 08:24:45 +01:00
spi	spi: spi-axi: Free resources on error path	2017-08-11 08:49:35 -07:00
spmi	spmi: Include OF based modalias in device uevent	2017-07-27 15:08:08 -07:00
ssb	ssb: Fix error routine when fallback SPROM fails	2017-01-09 08:32:16 +01:00
staging	staging/rts5208: fix incorrect shift to extract upper nybble	2017-09-09 17:39:37 +02:00
target	target: Fix node_acl demo-mode + uncached dynamic shutdown regression	2017-08-16 13:43:17 -07:00
tc	TC: Error handling clean-ups	2014-11-24 07:45:25 +01:00
thermal	thermal: cpu_cooling: Avoid accessing potentially freed structures	2017-07-27 15:07:55 -07:00
thunderbolt	thunderbolt: Don't declare Falcon Ridge unsupported	2016-08-31 13:25:02 +02:00
tty	vt: fix unchecked __put_user() in tioclinux ioctls	2017-07-21 07:42:22 +02:00
uio	uio: fix dmem_region_start computation	2016-08-31 13:07:30 +02:00
usb	USB: core: Avoid race of async_completed() w/ usbdev_release()	2017-09-09 17:39:37 +02:00
uwb	uwb: fix device quirk on big-endian hosts	2017-05-25 15:44:46 +02:00
vfio	vfio-pci: Handle error from pci_iomap	2017-08-06 18:59:48 -07:00
vhost	vhost_net: correctly check tx avail during rx busy polling	2017-09-20 08:19:56 +02:00
video	video: fbdev: cobalt_lcdfb: Handle return NULL error from devm_ioremap	2017-08-06 18:59:48 -07:00
virt	mm: replace get_user_pages() write/force parameters with gup_flags	2016-10-19 08:11:43 -07:00
virtio	virtio_balloon: init 1st buffer in stats vq	2017-03-31 10:31:45 +02:00
vlynq	drivers/vlynq/vlynq.c: fix another resource size off by 1 error	2014-01-23 16:36:55 -08:00
vme	VME: restore bus_remove function causing incomplete module unload	2017-03-12 06:41:50 +01:00
w1	w1: ds2490: USB transfer buffers need to be DMAable	2017-03-12 06:41:48 +01:00
watchdog	watchdog: bcm281xx: Fix use of uninitialized spinlock.	2017-07-05 14:40:28 +02:00
xen	xen: fix bio vec merging	2017-08-24 17:12:20 -07:00
zorro	zorro: Use kobj_to_dev()	2016-01-25 09:42:23 +01:00
Kconfig	libnvdimm for 4.7	2016-05-23 11:18:01 -07:00
Makefile	usb: Make sure usb/phy/of gets built-in	2017-05-20 14:28:35 +02:00