Eduardo Otubo 5b5971df3b xen-netfront: remove warning when unloading module ... v2: * Replace busy wait with wait_event()/wake_up_all() * Cannot garantee that at the time xennet_remove is called, the xen_netback state will not be XenbusStateClosed, so added a condition for that * There's a small chance for the xen_netback state is XenbusStateUnknown by the time the xen_netfront switches to Closed, so added a condition for that. When unloading module xen_netfront from guest, dmesg would output warning messages like below: [ 105.236836] xen:grant_table: WARNING: g.e. 0x903 still in use! [ 105.236839] deferring g.e. 0x903 (pfn 0x35805) This problem relies on netfront and netback being out of sync. By the time netfront revokes the g.e.'s netback didn't have enough time to free all of them, hence displaying the warnings on dmesg. The trick here is to make netfront to wait until netback frees all the g.e.'s and only then continue to cleanup for the module removal, and this is done by manipulating both device states. Signed-off-by: Eduardo Otubo <otubo@redhat.com> Acked-by: Juergen Gross <jgross@suse.com> Signed-off-by: David S. Miller <davem@davemloft.net>		2017-11-27 14:21:58 -05:00
..
accessibility
acpi	ACPI fix for v4.15-rc1	2017-11-17 14:51:24 -08:00
amba	A couple of dma-mapping updates:	2017-11-14 16:54:12 -08:00
android	Char/Misc patches for 4.15-rc1	2017-11-16 09:10:59 -08:00
ata	Merge branch 'for-4.15' of git://git.kernel.org/pub/scm/linux/kernel/git/tj/libata	2017-11-15 14:11:41 -08:00
atm	Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next	2017-11-15 11:56:19 -08:00
auxdisplay	Merge branch 'timers-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip	2017-11-13 17:56:58 -08:00
base	Two power management fixes for v4.15-rc1	2017-11-17 14:49:25 -08:00
bcma	Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next	2017-11-15 11:56:19 -08:00
block	We have a set of file locking improvements from Zheng, rbd rw/ro	2017-11-21 05:38:32 -10:00
bluetooth
bus	ARM: SoC driver updates for v4.15	2017-11-16 16:05:01 -08:00
cdrom	Merge branch 'for-4.15/block' of git://git.kernel.dk/linux-block	2017-11-14 15:32:19 -08:00
char	Merge branch 'misc.compat' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs	2017-11-17 11:54:55 -08:00
clk	We have two changes to the core framework this time around. The first being a	2017-11-17 20:04:24 -08:00
clocksource	First batch of KVM changes for 4.15	2017-11-16 13:00:24 -08:00
connector
cpufreq	Power management updates for v4.15-rc1	2017-11-13 19:43:50 -08:00
cpuidle	powerpc updates for 4.15	2017-11-16 12:47:46 -08:00
crypto	powerpc updates for 4.15	2017-11-16 12:47:46 -08:00
dax	libnvdimm for 4.15	2017-11-17 09:51:57 -08:00
dca
devfreq	Merge branches 'pm-devfreq' and 'pm-tools'	2017-11-13 01:41:39 +01:00
dio
dma	dmaengine updates for 4.15-rc1	2017-11-14 16:49:31 -08:00
dma-buf	Tracing updates for 4.15:	2017-11-17 14:58:01 -08:00
edac	Modules updates for v4.15	2017-11-15 13:46:33 -08:00
eisa
extcon	USB/PHY patches for 4.15-rc1	2017-11-13 21:14:07 -08:00
firewire	Merge branch 'timers-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip	2017-11-13 17:56:58 -08:00
firmware	remoteproc updates for v4.15	2017-11-17 20:14:10 -08:00
fmc
fpga	Char/Misc patches for 4.15-rc1	2017-11-16 09:10:59 -08:00
fsi
gpio	This is the bulk of pin control changes for the v4.15	2017-11-16 10:57:11 -08:00
gpu	fixes/cleanups for rc1, non-desktop flags for VR	2017-11-23 21:04:56 -10:00
hid	Modules updates for v4.15	2017-11-15 13:46:33 -08:00
hsi	HSI changes for the v4.15 series	2017-11-15 13:35:43 -08:00
hv	Char/Misc patches for 4.15-rc1	2017-11-16 09:10:59 -08:00
hwmon	hwmon: (w83793) Remove duplicate NULL check	2017-11-16 01:03:19 -08:00
hwspinlock	hwspinlock update for v4.15	2017-11-17 20:16:20 -08:00
hwtracing	Char/Misc patches for 4.15-rc1	2017-11-16 09:10:59 -08:00
i2c	Merge branch 'misc.compat' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs	2017-11-17 11:54:55 -08:00
ide	Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/ide	2017-11-19 08:04:41 -10:00
idle	Merge branch 'pm-cpuidle'	2017-11-13 01:34:14 +01:00
iio	A couple of configfs cleanups:	2017-11-14 14:44:04 -08:00
infiniband	Driver core patches for 4.15-rc1	2017-11-16 08:55:30 -08:00
input	Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input	2017-11-14 18:07:18 -08:00
iommu	IOMMU Updates for Linux v4.15	2017-11-14 16:43:27 -08:00
ipack
irqchip	ARM: SoC platform updates for 4.15	2017-11-16 14:05:12 -08:00
isdn	isdn: hisax: Fix pnp_irq's error checking for setup_teles3	2017-11-16 22:31:16 +09:00
leds	LED updates for 4.15rc1	2017-11-14 18:09:31 -08:00
lightnvm	Merge branch 'for-4.15/block' of git://git.kernel.dk/linux-block	2017-11-14 15:32:19 -08:00
macintosh	Merge branch 'timers-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip	2017-11-13 17:56:58 -08:00
mailbox	Change to POLL api and fixes for FlexRM and OMAP driver	2017-11-15 13:39:18 -08:00
mcb
md	Merge branch 'for-linus' of git://git.kernel.dk/linux-block	2017-11-17 10:56:56 -08:00
media	AFS development	2017-11-16 11:41:22 -08:00
memory	ARM: SoC driver updates for v4.15	2017-11-16 16:05:01 -08:00
memstick	Merge branch 'timers-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip	2017-11-13 17:56:58 -08:00
message	Modules updates for v4.15	2017-11-15 13:46:33 -08:00
mfd	- New Drivers	2017-11-16 09:15:57 -08:00
misc	lkdtm: include WARN format string	2017-11-17 16:10:01 -08:00
mmc	MMC core:	2017-11-13 10:17:35 -08:00
mtd	This pull request contains the following core changes:	2017-11-22 20:46:06 -10:00
mux
net	xen-netfront: remove warning when unloading module	2017-11-27 14:21:58 -05:00
nfc	Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next	2017-11-15 11:56:19 -08:00
ntb	ntb: intel: remove b2b memory window workaround for Skylake NTB	2017-11-18 20:54:47 -05:00
nubus	m68k updates for 4.15	2017-11-13 12:10:24 -08:00
nvdimm	libnvdimm for 4.15	2017-11-17 09:51:57 -08:00
nvme	nvmet_fc: fix better length checking	2017-11-16 11:27:04 -07:00
nvmem	Char/Misc patches for 4.15-rc1	2017-11-16 09:10:59 -08:00
of	DeviceTree fixes for 4.15:	2017-11-20 21:38:41 -10:00
opp
oprofile
parisc
parport	Char/Misc patches for 4.15-rc1	2017-11-16 09:10:59 -08:00
pci	Support for the switchtec ntb and related changes. Also, a couple of	2017-11-19 20:41:53 -10:00
pcmcia	drivers/pcmcia/sa1111_badge4.c: avoid unused function warning	2017-11-17 16:10:04 -08:00
perf	arm64 updates for 4.15	2017-11-15 10:56:56 -08:00
phy	USB/PHY patches for 4.15-rc1	2017-11-13 21:14:07 -08:00
pinctrl	This is the bulk of pin control changes for the v4.15	2017-11-16 10:57:11 -08:00
platform	platform-drivers-x86 for v4.15-2	2017-11-23 21:14:30 -10:00
pnp
power	power supply and reset changes for the v4.15 series	2017-11-15 13:37:15 -08:00
powercap
pps
ps3
ptp	xen: features and fixes for v4.15-rc1	2017-11-16 13:06:27 -08:00
pwm	pwm: Changes for v4.15-rc1	2017-11-22 21:09:18 -10:00
rapidio	Merge branch 'akpm' (patches from Andrew)	2017-11-17 16:56:17 -08:00
ras	Merge branch 'timers-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip	2017-11-13 17:56:58 -08:00
regulator	- New Drivers	2017-11-16 09:15:57 -08:00
remoteproc	remoteproc updates for v4.15	2017-11-17 20:14:10 -08:00
reset	ARM: SoC driver updates for v4.15	2017-11-16 16:05:01 -08:00
rpmsg	rpmsg updates for v4.15	2017-11-17 20:12:08 -08:00
rtc	RTC for 4.15	2017-11-22 20:58:23 -10:00
s390	Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/s390/linux	2017-11-17 14:23:52 -08:00
sbus	Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/sparc	2017-11-17 20:21:44 -08:00
scsi	SCSI fixes on 20171122	2017-11-23 21:12:58 -10:00
sfi
sh	A couple of dma-mapping updates:	2017-11-14 16:54:12 -08:00
sn
soc	ARM: SoC driver updates for v4.15	2017-11-16 16:05:01 -08:00
spi	Merge remote-tracking branches 'spi/topic/sh-msiof', 'spi/topic/slave', 'spi/topic/spreadtrum' and 'spi/topic/tegra114' into spi-next	2017-11-10 21:33:51 +00:00
spmi
ssb
staging	Merge branch 'work.get_user_pages_fast' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs	2017-11-17 12:38:51 -08:00
target	A couple of configfs cleanups:	2017-11-14 14:44:04 -08:00
tc
tee
thermal	Merge branch 'next' of git://git.kernel.org/pub/scm/linux/kernel/git/rzhang/linux	2017-11-17 14:31:27 -08:00
thunderbolt	Char/Misc patches for 4.15-rc1	2017-11-16 09:10:59 -08:00
tty	Merge branch 'misc.compat' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs	2017-11-17 11:54:55 -08:00
uio
usb	sound updates for 4.15-rc1	2017-11-14 18:01:46 -08:00
uwb
vfio	VFIO Updates for Linux v4.15	2017-11-14 16:47:47 -08:00
vhost	Merge branch 'work.iov_iter' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs	2017-11-17 12:08:18 -08:00
video	fbdev changes for v4.15:	2017-11-20 21:50:24 -10:00
virt
virtio	virtio_balloon: fix deadlock on OOM	2017-11-14 23:57:38 +02:00
vlynq
vme	Char/Misc patches for 4.15-rc1	2017-11-16 09:10:59 -08:00
w1	Char/Misc patches for 4.15-rc1	2017-11-16 09:10:59 -08:00
watchdog	drivers/watchdog: make use of devm_register_reboot_notifier()	2017-11-17 16:10:04 -08:00
xen	Merge branch 'work.iov_iter' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs	2017-11-17 12:08:18 -08:00
zorro
Kconfig	Merge branches 'pm-cpufreq-sched' and 'pm-opp'	2017-11-13 01:40:52 +01:00
Makefile	Merge branches 'pm-cpufreq-sched' and 'pm-opp'	2017-11-13 01:40:52 +01:00