Giovanni Cabiddu 203b01001c crypto: qat - fix deadlock in backlog processing ... If a request has the flag CRYPTO_TFM_REQ_MAY_BACKLOG set, the function qat_alg_send_message_maybacklog(), enqueues it in a backlog list if either (1) there is already at least one request in the backlog list, or (2) the HW ring is nearly full or (3) the enqueue to the HW ring fails. If an interrupt occurs right before the lock in qat_alg_backlog_req() is taken and the backlog queue is being emptied, then there is no request in the HW queues that can trigger a subsequent interrupt that can clear the backlog queue. In addition subsequent requests are enqueued to the backlog list and not sent to the hardware. Fix it by holding the lock while taking the decision if the request needs to be included in the backlog queue or not. This synchronizes the flow with the interrupt handler that drains the backlog queue. For performance reasons, the logic has been changed to try to enqueue first without holding the lock. Fixes: 3868238397 ("crypto: qat - add backlog mechanism") Reported-by: Mikulas Patocka <mpatocka@redhat.com> Closes: https://lore.kernel.org/all/af9581e2-58f9-cc19-428f-6f18f1f83d54@redhat.com/T/ Signed-off-by: Giovanni Cabiddu <giovanni.cabiddu@intel.com> Reviewed-by: Mikulas Patocka <mpatocka@redhat.com> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>		2023-10-27 18:04:28 +08:00
..
accel	Short summary of fixes pull:	2023-09-08 06:36:36 +10:00
accessibility
acpi	More thermal control updates for 6.6-rc1	2023-09-04 15:17:28 -07:00
amba	amba: bus: fix refcount leak	2023-08-22 15:50:57 +02:00
android	Char/Misc driver changes for 6.6-rc1	2023-09-01 09:53:54 -07:00
ata	SCSI misc on 20230909	2023-09-09 12:01:33 -07:00
atm
auxdisplay	drm for 6.6-rc1	2023-08-30 13:34:34 -07:00
base	Driver core changes for 6.6-rc1	2023-09-01 09:43:18 -07:00
bcma
block	block-6.6-2023-09-08	2023-09-08 21:39:54 -07:00
bluetooth	TTY/Serial driver changes for 6.6-rc1	2023-09-01 09:38:00 -07:00
bus	Char/Misc driver changes for 6.6-rc1	2023-09-01 09:53:54 -07:00
cache	cache: Add L2 cache management for Andes AX45MP RISC-V core	2023-09-01 09:08:59 -07:00
cdrom
cdx
char	hwrng: n2 - Use device_get_match_data()	2023-10-13 18:31:07 +08:00
clk	This pull request is full of clk driver changes. In fact, there aren't any	2023-08-30 19:53:39 -07:00
clocksource	Updates for clocksource/clockevent drivers:	2023-09-04 13:15:57 -07:00
comedi
connector
counter	- New Drivers	2023-09-04 13:47:59 -07:00
cpufreq	cpufreq: Support per-policy performance boost	2023-08-29 20:51:40 +02:00
cpuidle	powerpc updates for 6.6	2023-08-31 12:43:10 -07:00
crypto	crypto: qat - fix deadlock in backlog processing	2023-10-27 18:04:28 +08:00
cxl
dax	mm: remove enum page_entry_size	2023-08-24 16:20:30 -07:00
dca
devfreq
dio
dma	dmaengine updates for v6.6	2023-09-03 10:49:42 -07:00
dma-buf	drm for 6.6-rc1	2023-08-30 13:34:34 -07:00
edac	Intel EDAC fixes:	2023-08-30 19:23:00 -07:00
eisa
extcon
firewire
firmware	RISC-V Patches for the 6.6 Merge Window, Part 2 (try 2)	2023-09-09 14:25:11 -07:00
fpga
fsi	fsi: i2cr: Switch to use struct i2c_driver's .probe()	2023-08-22 15:51:33 +02:00
genpd	ARM: SoC drivers for 6.6	2023-08-30 16:42:21 -07:00
gnss
gpio	gpio: zynq: restore zynq_gpio_irq_reqres/zynq_gpio_irq_relres callbacks	2023-09-06 17:08:51 +02:00
gpu	drm ci for 6.6-rc1	2023-09-10 11:55:26 -07:00
greybus
hid	for-linus-2023083101	2023-09-01 12:31:44 -07:00
hsi
hte	hte: Explicitly include correct DT includes	2023-08-28 13:31:06 -05:00
hv	hyperv-next for v6.6	2023-09-04 11:26:29 -07:00
hwmon	Char/Misc driver changes for 6.6-rc1	2023-09-01 09:53:54 -07:00
hwspinlock
hwtracing
i2c	I2C has mainly cleanups this time and a few driver improvements. Because	2023-09-04 13:44:11 -07:00
i3c	i3c: master: svc: fix probe failure when no i3c device exist	2023-09-06 01:21:47 +02:00
idle	Perf events changes for v6.6:	2023-08-28 16:35:01 -07:00
iio	Char/Misc driver changes for 6.6-rc1	2023-09-01 09:53:54 -07:00
infiniband	SCSI misc on 20230902	2023-09-02 12:02:41 -07:00
input	Input updates for 6.6 merge window:	2023-09-06 09:24:25 -07:00
interconnect	This pull request is full of clk driver changes. In fact, there aren't any	2023-08-30 19:53:39 -07:00
iommu	IOMMU Updates for Linux v6.6	2023-09-01 16:54:25 -07:00
ipack
irqchip	Documentation work keeps chugging along; stuff for 6.6 includes:	2023-08-30 20:05:42 -07:00
isdn
leds	- Core Frameworks	2023-09-04 13:52:58 -07:00
macintosh	powerpc updates for 6.6	2023-08-31 12:43:10 -07:00
mailbox	mailbox: qcom-ipcc: fix incorrect num_chans counting	2023-09-05 10:11:01 -05:00
mcb
md	for-6.6/block-2023-08-28	2023-08-29 20:21:42 -07:00
media	media: dvb: symbol fixup for dvb_attach()	2023-09-09 08:15:11 +01:00
memory
memstick
message
mfd	spi: Updates for v6.6	2023-08-29 09:47:33 -07:00
misc	Char/Misc driver changes for 6.6-rc1	2023-09-01 09:53:54 -07:00
mmc	TTY/Serial driver changes for 6.6-rc1	2023-09-01 09:38:00 -07:00
most
mtd	- New Drivers	2023-09-04 13:47:59 -07:00
mux	mux: Explicitly include correct DT includes	2023-08-28 13:36:24 -05:00
net	chelsio: Do not include crypto/algapi.h	2023-09-15 18:30:43 +08:00
nfc	NFC: nxp: add NXP1002	2023-08-30 18:32:24 -07:00
ntb	ntb: Check tx descriptors outstanding instead of head/tail for tx queue	2023-08-22 12:38:19 -04:00
nubus
nvdimm	nvdimm changes for v6.6 merge window	2023-08-30 20:52:08 -07:00
nvme	for-6.6/block-2023-08-28	2023-08-29 20:21:42 -07:00
nvmem	nvmem: core: Notify when a new layout is registered	2023-08-23 16:34:02 +02:00
of	Devicetree updates for v6.6:	2023-08-30 16:59:03 -07:00
opp
parisc	parisc: ccio-dma: Create private runway procfs root entry	2023-08-28 18:00:27 +02:00
parport	TTY/Serial driver changes for 6.6-rc1	2023-09-01 09:38:00 -07:00
pci	pci-v6.6-fixes-1	2023-09-09 11:35:28 -07:00
pcmcia
peci
perf	arm64 fixes for -rc1	2023-09-08 12:48:37 -07:00
phy	phy-for-6.6	2023-09-03 10:38:02 -07:00
pinctrl	Pin control bulk changes for the v6.6 kernel cycle:	2023-08-30 19:36:19 -07:00
platform	USB / Thunderbolt / PHY driver update for 6.6-rc1	2023-09-01 09:23:34 -07:00
pnp
power	thermal: Use thermal_tripless_zone_device_register()	2023-09-05 21:42:18 +02:00
powercap	powercap: intel_rapl: Fix invalid setting of Power Limit 4	2023-09-06 22:21:22 +02:00
pps
ps3
ptp
pwm	pwm: Changes for v6.6-rc1	2023-09-07 18:05:58 -07:00
rapidio
ras
regulator	regulator: Fixes for v6.6	2023-09-07 15:51:07 -07:00
remoteproc	remoteproc updates for v6.6	2023-09-04 15:12:26 -07:00
reset	This pull request is full of clk driver changes. In fact, there aren't any	2023-08-30 19:53:39 -07:00
rpmsg	rpmsg updates for v6.6	2023-09-04 15:08:52 -07:00
rtc	RTC for 6.6	2023-09-07 16:07:35 -07:00
s390	block-6.6-2023-09-08	2023-09-08 21:39:54 -07:00
sbus	sbus: Explicitly include correct DT includes	2023-08-28 13:36:24 -05:00
scsi	SCSI misc on 20230909	2023-09-09 12:01:33 -07:00
sh
siox
slimbus
soc	soc: renesas: Kconfig: For ARCH_R9A07G043 select the required configs if dependencies are met	2023-09-08 11:25:29 -07:00
soundwire	soundwire updates for 6.6	2023-09-03 10:20:57 -07:00
spi	spi: Fixes for v6.6	2023-09-07 15:49:20 -07:00
spmi
ssb
staging	media: dvb: symbol fixup for dvb_attach()	2023-09-09 08:15:11 +01:00
target	SCSI misc on 20230902	2023-09-02 12:02:41 -07:00
tc
tee
thermal	thermal: core: Drop thermal_zone_device_register()	2023-09-05 21:42:18 +02:00
thunderbolt
tty	TTY/Serial driver changes for 6.6-rc1	2023-09-01 09:38:00 -07:00
ufs	Merge branch 'fixes' into misc	2023-09-02 08:25:19 +01:00
uio
usb	just cleanups and fixes	2023-09-07 10:35:14 -07:00
vdpa	virtio: features	2023-09-04 10:43:44 -07:00
vfio	iommufd for 6.6	2023-08-30 20:41:37 -07:00
vhost	vdpa: add get_backend_features vdpa operation	2023-09-03 18:10:22 -04:00
video	- New Functionality	2023-09-06 09:00:37 -07:00
virt	minmax: add in_range() macro	2023-08-24 16:20:18 -07:00
virtio	virtio_ring: fix avail_wrap_counter in virtqueue_add_packed	2023-09-03 18:10:24 -04:00
vlynq
w1
watchdog	linux-watchdog 6.6-rc1 tag	2023-09-06 09:19:12 -07:00
xen	dma-maping updates for Linux 6.6	2023-08-29 20:32:10 -07:00
zorro
Kconfig	Merge patch series "Add non-coherent DMA support for AX45MP"	2023-09-08 11:24:34 -07:00
Makefile	Merge patch series "Add non-coherent DMA support for AX45MP"	2023-09-08 11:24:34 -07:00