Mike Christie 1c05839aa9 nbd: fix shutdown and recv work deadlock v2 ... This fixes a regression added with: commit e9e006f5fc Author: Mike Christie <mchristi@redhat.com> Date: Sun Aug 4 14:10:06 2019 -0500 nbd: fix max number of supported devs where we can deadlock during device shutdown. The problem occurs if the recv_work's nbd_config_put occurs after nbd_start_device_ioctl has returned and the userspace app has droppped its reference via closing the device and running nbd_release. The recv_work nbd_config_put call would then drop the refcount to zero and try to destroy the config which would try to do destroy_workqueue from the recv work. This patch just has nbd_start_device_ioctl do a flush_workqueue when it wakes so we know after the ioctl returns running works have exited. This also fixes a possible race where we could try to reuse the device while old recv_works are still running. Cc: stable@vger.kernel.org Fixes: e9e006f5fc ("nbd: fix max number of supported devs") Signed-off-by: Mike Christie <mchristi@redhat.com> Signed-off-by: Jens Axboe <axboe@kernel.dk>		2019-12-16 16:12:47 -07:00
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accessibility	…
acpi	ACPI: PM: Avoid attaching ACPI PM domain to certain devices	2019-12-10 00:22:18 +01:00
amba	…
android	binder: fix incorrect calculation for num_valid	2019-12-14 09:10:47 +01:00
ata	pci-v5.5-changes	2019-12-03 13:58:22 -08:00
atm	…
auxdisplay	auxdisplay: charlcd: deduplicate simple_strtoul()	2019-12-04 19:44:12 -08:00
base	Merge branch 'remove-ksys-mount-dup' of git://git.kernel.org/pub/scm/linux/kernel/git/brodo/linux	2019-12-15 11:36:12 -08:00
bcma	…
block	nbd: fix shutdown and recv work deadlock v2	2019-12-16 16:12:47 -07:00
bluetooth	Bluetooth: btbcm: Use the BDADDR_PROPERTY quirk	2019-11-22 13:35:20 +01:00
bus	Few ti-sysc related fixes for v5.5 merge window	2019-12-06 08:26:50 -08:00
cdrom	cdrom: respect device capabilities during opening action	2019-11-26 13:02:24 -07:00
char	drm msm + fixes for 5.5-rc1	2019-12-06 10:28:09 -08:00
clk	ARM: SoC platform updates	2019-12-05 11:38:40 -08:00
clocksource	Merge branch 'timers-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip	2019-12-03 12:20:25 -08:00
connector	…
counter	…
cpufreq	cpufreq: tegra: Changes for v5.5-rc1	2019-12-06 08:28:13 -08:00
cpuidle	cpuidle: Drop unnecessary type cast in cpuidle_poll_time()	2019-12-12 17:56:08 +01:00
crypto	Merge branch 'linus' of git://git.kernel.org/pub/scm/linux/kernel/git/herbert/crypto-2.6	2019-12-02 17:23:21 -08:00
dax	libnvdimm for 5.5	2019-12-01 18:43:25 -08:00
dca	…
devfreq	PM / devfreq: Use PM QoS for sysfs min/max_freq	2019-12-09 12:19:16 +09:00
dio	…
dma	dmaengine: Fix Kconfig indentation	2019-11-22 11:16:26 +05:30
dma-buf	- A fix for a memory leak in the dma-buf support	2019-12-09 17:13:19 +10:00
edac	EDAC/altera: Use the Altera System Manager driver	2019-11-22 10:18:29 +01:00
eisa	…
extcon	Char/Misc driver patches for 5.5-rc1	2019-11-27 10:53:50 -08:00
firewire	FireWire (IEEE 1394) subsystem updates:	2019-12-02 14:13:00 -08:00
firmware	treewide: Use sizeof_field() macro	2019-12-09 10:36:44 -08:00
fpga	…
fsi	…
gnss	…
gpio	gpio: pca953x: tighten up indentation	2019-12-04 19:44:14 -08:00
gpu	Merge tag 'drm-fixes-5.5-2019-12-12' of git://people.freedesktop.org/~agd5f/linux into drm-fixes	2019-12-13 14:50:01 +10:00
greybus	…
hid	Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/hid/hid	2019-12-01 18:20:54 -08:00
hsi	…
hv	Merge branch 'akpm' (patches from Andrew)	2019-12-01 20:36:41 -08:00
hwmon	compat_ioctl: remove most of fs/compat_ioctl.c	2019-12-01 13:46:15 -08:00
hwspinlock	…
hwtracing	compat_ioctl: remove most of fs/compat_ioctl.c	2019-12-01 13:46:15 -08:00
i2c	i2c: remove i2c_new_dummy() API	2019-12-10 23:15:09 +01:00
i3c	…
ide	compat_ioctl: remove most of fs/compat_ioctl.c	2019-12-01 13:46:15 -08:00
idle	cpuidle: Drop disabled field from struct cpuidle_state	2019-11-29 11:48:39 +01:00
iio	First set of fixes for IIO in the 5.5 cycle.	2019-12-09 09:27:52 +01:00
infiniband	Pull request for 5.5-rc2	2019-12-15 14:58:13 -08:00
input	Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input	2019-12-07 18:33:01 -08:00
interconnect	interconnect: qcom: msm8974: Walk the list safely on node removal	2019-12-12 10:28:54 +01:00
iommu	iommu: fix KASAN use-after-free in iommu_insert_resv_region	2019-12-16 08:58:42 -08:00
ipack	…
irqchip	pci-v5.5-changes	2019-12-03 13:58:22 -08:00
isdn	compat_ioctl: remove most of fs/compat_ioctl.c	2019-12-01 13:46:15 -08:00
leds	Merge tag 'leds-5.5-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/pavel/linux-leds	2019-12-01 16:09:28 -08:00
lightnvm	…
macintosh	powerpc updates for 5.5	2019-11-30 14:35:43 -08:00
mailbox	mailbox changes for v5.5	2019-12-01 18:42:02 -08:00
mcb	…
md	for-linus-20191212	2019-12-13 14:27:19 -08:00
media	treewide: Use sizeof_field() macro	2019-12-09 10:36:44 -08:00
memory	memory: tegra: Fixes for v5.5-rc1	2019-12-06 08:28:51 -08:00
memstick	pci-v5.5-changes	2019-12-03 13:58:22 -08:00
message	…
mfd	chrome platform changes for v5.5	2019-12-03 14:37:12 -08:00
misc	lib/genalloc.c: rename addr_in_gen_pool to gen_pool_has_addr	2019-12-04 19:44:13 -08:00
mmc	Driver core patches for 5.5-rc1	2019-11-27 11:06:20 -08:00
mtd	TTY/Serial patches for 5.5-rc1	2019-12-03 14:09:14 -08:00
mux	…
net	treewide: Use sizeof_field() macro	2019-12-09 10:36:44 -08:00
nfc	Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net	2019-11-22 16:27:24 -08:00
ntb	Add Hygon Device ID to the AMD NTB device driver	2019-12-07 18:38:17 -08:00
nubus	…
nvdimm	libnvdimm for 5.5	2019-12-01 18:43:25 -08:00
nvme	for-linus-20191212	2019-12-13 14:27:19 -08:00
nvmem	ARM: SoC-related driver updates	2019-12-05 11:43:31 -08:00
of	of/platform: Unconditionally pause/resume sync state during kernel init	2019-12-12 18:39:52 -06:00
opp	…
oprofile	Printk changes for 5.5	2019-11-25 19:40:40 -08:00
parisc	…
parport	…
pci	PCI: rockchip: Fix IO outbound ATU register number	2019-12-12 15:25:37 -06:00
pcmcia	pcmcia: remove unused dprintk definition	2019-11-22 07:03:45 +01:00
perf	…
phy	ARM: SoC-related driver updates	2019-12-05 11:43:31 -08:00
pinctrl	Merge branch 'irq-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip	2019-12-03 09:29:50 -08:00
platform	chrome platform changes for v5.5	2019-12-03 14:37:12 -08:00
pnp	…
power	Additional power management updates for 5.5-rc1	2019-12-04 10:48:09 -08:00
powercap	…
pps	…
ps3	…
ptp	Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net	2019-11-16 21:51:42 -08:00
pwm	pwm: Changes for v5.5-rc1	2019-12-05 11:28:14 -08:00
rapidio	drivers/rapidio/rio-access.c: fix missing include of <linux/rio_drv.h>	2019-12-04 19:44:13 -08:00
ras	…
regulator	Merge branch 'regulator-5.5' into regulator-next	2019-11-22 19:56:20 +00:00
remoteproc	remoteproc: stm32: fix probe error case	2019-11-18 20:35:16 -08:00
reset	ARM: SoC-related driver updates	2019-12-05 11:43:31 -08:00
rpmsg	rpmsg updates for v5.5	2019-12-01 18:39:24 -08:00
rtc	RTC for 5.5	2019-12-03 13:31:08 -08:00
s390	treewide: Use sizeof_field() macro	2019-12-09 10:36:44 -08:00
sbus	…
scsi	SCSI fixes on 20191214	2019-12-14 12:51:57 -08:00
sfi	…
sh	…
siox	…
slimbus	…
soc	ARM: SoC fixes	2019-12-06 14:19:37 -08:00
soundwire	…
spi	Merge branch 'spi-5.5' into spi-next	2019-11-22 19:56:35 +00:00
spmi	…
ssb	…
staging	Staging/IIO fixes for 5.5-rc2	2019-12-14 12:43:57 -08:00
target	treewide: Use sizeof_field() macro	2019-12-09 10:36:44 -08:00
tc	…
tee	Merge mainline/master into arm/fixes	2019-12-05 13:18:54 -08:00
thermal	thermal: power_allocator: Fix Kconfig warning	2019-12-07 21:49:06 +08:00
thunderbolt	thunderbolt: Power cycle the router if NVM authentication fails	2019-11-19 17:35:57 +01:00
tty	TTY/Serial patches for 5.5-rc1	2019-12-03 14:09:14 -08:00
uio	…
usb	USB driver fixes for 5.5-rc2	2019-12-14 12:40:39 -08:00
vfio	VFIO updates for v5.5-rc1	2019-12-07 14:51:04 -08:00
vhost	Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net	2019-12-08 13:28:11 -08:00
video	pci-v5.5-changes	2019-12-03 13:58:22 -08:00
virt	compat_ioctl: remove most of fs/compat_ioctl.c	2019-12-01 13:46:15 -08:00
virtio	virtio_balloon: divide/multiply instead of shifts	2019-12-11 08:14:07 -05:00
visorbus	…
vlynq	…
vme	…
w1	…
watchdog	linux-watchdog 5.5-rc1 tag	2019-12-01 18:01:03 -08:00
xen	xen: branch for v5.5-rc2	2019-12-15 12:24:44 -08:00
zorro	…
Kconfig	…
Makefile	…