ZiyangZhang e6190dd003 ublk_drv: do not add a re-issued request aborted previously to ioucmd's task_work ... In ublk_queue_rq(), Assume current request is a re-issued request aborted previously in monitor_work because the ubq_daemon(ioucmd's task) is PF_EXITING. For this request, we cannot call io_uring_cmd_complete_in_task() anymore because at that moment io_uring context may be freed in case that no inflight ioucmd exists. Otherwise, we may cause null-deref in ctx->fallback_work. Add a check on UBLK_IO_FLAG_ABORTED to prevent the above situation. This check is safe and makes sense. Note: monitor_work sets UBLK_IO_FLAG_ABORTED and ends this request (releasing the tag). Then the request is restarted(allocating the tag) and we are here. Since releasing/allocating a tag implies smp_mb(), finding UBLK_IO_FLAG_ABORTED guarantees that here is a re-issued request aborted previously. Suggested-by: Ming Lei <ming.lei@redhat.com> Signed-off-by: ZiyangZhang <ZiyangZhang@linux.alibaba.com> Reviewed-by: Ming Lei <ming.lei@redhat.com> Link: https://lore.kernel.org/r/20220815023633.259825-4-ZiyangZhang@linux.alibaba.com Signed-off-by: Jens Axboe <axboe@kernel.dk>		2022-08-16 06:16:19 -06:00
..
accessibility
acpi	pci-v5.20-changes	2022-08-04 19:30:35 -07:00
amba	ARM: 9220/1: amba: Remove deferred device addition	2022-07-28 15:09:23 +01:00
android
ata	ATA changes for 5.20-rc1	2022-08-03 15:26:04 -07:00
atm
auxdisplay
base	Driver core / kernfs changes for 6.0-rc1	2022-08-04 11:31:20 -07:00
bcma
block	ublk_drv: do not add a re-issued request aborted previously to ioucmd's task_work	2022-08-16 06:16:19 -06:00
bluetooth	SPDX changes for 6.0-rc1	2022-08-04 12:12:54 -07:00
bus	SPDX changes for 6.0-rc1	2022-08-04 12:12:54 -07:00
cdrom
char	SPDX changes for 6.0-rc1	2022-08-04 12:12:54 -07:00
clk	The clk core gains a new set of APIs that allow drivers to both acquire clks	2022-08-04 18:40:08 -07:00
clocksource	- Add the missing DT bindings for the MTU nomadik timer (Linus	2022-07-28 12:33:34 +02:00
comedi	pci-v5.20-changes	2022-08-04 19:30:35 -07:00
connector
counter
cpufreq	SPDX changes for 6.0-rc1	2022-08-04 12:12:54 -07:00
cpuidle	SPDX changes for 6.0-rc1	2022-08-04 12:12:54 -07:00
crypto	This update includes the following changes:	2022-08-02 17:45:14 -07:00
cxl
dax
dca
devfreq	Char / Misc driver changes for 6.0-rc1	2022-08-04 11:05:48 -07:00
dio
dma	pci-v5.20-changes	2022-08-04 19:30:35 -07:00
dma-buf	drm for 5.20/6.0	2022-08-03 19:52:08 -07:00
edac	platform-drivers-x86 for v6.0-1	2022-08-04 18:19:14 -07:00
eisa
extcon
firewire	firewire: net: Make use of get_unaligned_be48(), put_unaligned_be48()	2022-07-28 22:21:54 -07:00
firmware	Char / Misc driver changes for 6.0-rc1	2022-08-04 11:05:48 -07:00
fpga
fsi
gnss
gpio	gpio: updates for v6.0-rc1	2022-08-04 18:34:05 -07:00
gpu	drm/amd/amdgpu: fix build failure due to implicit declaration	2022-08-04 12:29:10 -07:00
greybus
hid	platform-drivers-x86 for v6.0-1	2022-08-04 18:19:14 -07:00
hsi
hte
hv
hwmon	hwmon updates for v5.20	2022-08-02 11:07:04 -07:00
hwspinlock
hwtracing
i2c	platform-drivers-x86 for v6.0-1	2022-08-04 18:19:14 -07:00
i3c
idle	Power management updates for 5.20-rc1	2022-08-02 11:17:00 -07:00
iio
infiniband	v5.20 pull request	2022-08-04 19:54:32 -07:00
input	SPDX changes for 6.0-rc1	2022-08-04 12:12:54 -07:00
interconnect
iommu	Driver core / kernfs changes for 6.0-rc1	2022-08-04 11:31:20 -07:00
ipack
irqchip	SPDX changes for 6.0-rc1	2022-08-04 12:12:54 -07:00
isdn
leds
macintosh
mailbox
mcb
md	for-5.20/block-2022-08-04	2022-08-04 20:00:14 -07:00
media	SPDX changes for 6.0-rc1	2022-08-04 12:12:54 -07:00
memory	SPDX changes for 6.0-rc1	2022-08-04 12:12:54 -07:00
memstick	MMC core:	2022-08-04 19:41:09 -07:00
message
mfd	gpio: updates for v6.0-rc1	2022-08-04 18:34:05 -07:00
misc	Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/egtvedt/linux-avr32	2022-08-04 15:20:39 -07:00
mmc	MMC core:	2022-08-04 19:41:09 -07:00
most
mtd	for-5.20/block-2022-07-29	2022-08-02 13:46:35 -07:00
mux
net	v5.20 pull request	2022-08-04 19:54:32 -07:00
nfc
ntb
nubus
nvdimm	for-5.20/block-2022-07-29	2022-08-02 13:46:35 -07:00
nvme	nvme-pci: add NVME_QUIRK_BOGUS_NID for ADATA XPG GAMMIX S70	2022-08-11 14:10:16 +02:00
nvmem	SPDX changes for 6.0-rc1	2022-08-04 12:12:54 -07:00
of	Devicetree updates for v6.0:	2022-08-04 18:08:34 -07:00
opp
parisc
parport
pci	pci-v5.20-changes	2022-08-04 19:30:35 -07:00
pcmcia
peci
perf
phy	pci-v5.20-changes	2022-08-04 19:30:35 -07:00
pinctrl	platform-drivers-x86 for v6.0-1	2022-08-04 18:19:14 -07:00
platform	platform-drivers-x86 for v6.0-1	2022-08-04 18:19:14 -07:00
pnp
power	platform-drivers-x86 for v6.0-1	2022-08-04 18:19:14 -07:00
powercap	Power management updates for 5.20-rc1	2022-08-02 11:17:00 -07:00
pps
ps3
ptp	SPDX changes for 6.0-rc1	2022-08-04 12:12:54 -07:00
pwm	SPDX changes for 6.0-rc1	2022-08-04 12:12:54 -07:00
rapidio
ras
regulator	chrome platform changes for 5.20	2022-08-04 18:13:19 -07:00
remoteproc
reset	SPDX changes for 6.0-rc1	2022-08-04 12:12:54 -07:00
rpmsg
rtc
s390	for-5.20/block-2022-08-04	2022-08-04 20:00:14 -07:00
sbus
scsi	SCSI misc on 20220804	2022-08-04 19:47:37 -07:00
sh
siox
slimbus
soc	SPDX changes for 6.0-rc1	2022-08-04 12:12:54 -07:00
soundwire	Char / Misc driver changes for 6.0-rc1	2022-08-04 11:05:48 -07:00
spi	Driver core / kernfs changes for 6.0-rc1	2022-08-04 11:31:20 -07:00
spmi
ssb
staging	Staging driver patches for 6.0-rc1	2022-08-04 12:01:42 -07:00
target	SCSI misc on 20220804	2022-08-04 19:47:37 -07:00
tc
tee
thermal	SPDX changes for 6.0-rc1	2022-08-04 12:12:54 -07:00
thunderbolt	USB / Thunderbolt changes for 6.0-rc1	2022-08-04 11:41:28 -07:00
tty	ARM: SoC drivers for 6.0	2022-08-02 08:10:10 -07:00
ufs	SCSI misc on 20220804	2022-08-04 19:47:37 -07:00
uio
usb	Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/egtvedt/linux-avr32	2022-08-04 15:20:39 -07:00
vdpa
vfio	ARM:	2022-08-04 14:59:54 -07:00
vhost
video	Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/egtvedt/linux-avr32	2022-08-04 15:20:39 -07:00
virt	Char / Misc driver changes for 6.0-rc1	2022-08-04 11:05:48 -07:00
virtio	xen: branch for v6.0-rc1	2022-08-04 15:10:55 -07:00
vlynq
w1
watchdog	platform-drivers-x86 for v6.0-1	2022-08-04 18:19:14 -07:00
xen	xen: branch for v6.0-rc1	2022-08-04 15:10:55 -07:00
zorro
Kconfig
Makefile	Staging driver patches for 6.0-rc1	2022-08-04 12:01:42 -07:00