Qian Cai 8cf6650421 iommu/amd: fix a crash in iova_magazine_free_pfns ... The commit b3aa14f022 ("iommu: remove the mapping_error dma_map_ops method") incorrectly changed the checking from dma_ops_alloc_iova() in map_sg() causes a crash under memory pressure as dma_ops_alloc_iova() never return DMA_MAPPING_ERROR on failure but 0, so the error handling is all wrong. kernel BUG at drivers/iommu/iova.c:801! Workqueue: kblockd blk_mq_run_work_fn RIP: 0010:iova_magazine_free_pfns+0x7d/0xc0 Call Trace: free_cpu_cached_iovas+0xbd/0x150 alloc_iova_fast+0x8c/0xba dma_ops_alloc_iova.isra.6+0x65/0xa0 map_sg+0x8c/0x2a0 scsi_dma_map+0xc6/0x160 pqi_aio_submit_io+0x1f6/0x440 [smartpqi] pqi_scsi_queue_command+0x90c/0xdd0 [smartpqi] scsi_queue_rq+0x79c/0x1200 blk_mq_dispatch_rq_list+0x4dc/0xb70 blk_mq_sched_dispatch_requests+0x249/0x310 __blk_mq_run_hw_queue+0x128/0x200 blk_mq_run_work_fn+0x27/0x30 process_one_work+0x522/0xa10 worker_thread+0x63/0x5b0 kthread+0x1d2/0x1f0 ret_from_fork+0x22/0x40 Fixes: b3aa14f022 ("iommu: remove the mapping_error dma_map_ops method") Signed-off-by: Qian Cai <cai@lca.pw> Reviewed-by: Christoph Hellwig <hch@lst.de> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>		2019-07-21 09:57:13 -07:00
..
accessibility	…
acpi	Merge branch 'akpm' (patches from Andrew)	2019-07-19 09:45:58 -07:00
amba	Driver Core and debugfs changes for 5.3-rc1	2019-07-12 12:24:03 -07:00
android	…
ata	for-5.3/libata-20190708	2019-07-09 10:59:26 -07:00
atm	atm: idt77252: Remove call to memset after dma_alloc_coherent	2019-07-15 11:06:27 -07:00
auxdisplay	It's been a relatively busy cycle for docs:	2019-07-09 12:34:26 -07:00
base	Merge branch 'work.mount0' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs	2019-07-19 10:42:02 -07:00
bcma	…
block	Lots of exciting things this time!	2019-07-18 11:05:25 -07:00
bluetooth	Bluetooth: btusb: Add protocol support for MediaTek MT7663U USB devices	2019-07-06 21:44:25 +02:00
bus	ARM: SoC-related driver updates	2019-07-19 17:13:56 -07:00
cdrom	…
char	docs: admin-guide: add a series of orphaned documents	2019-07-15 11:03:02 -03:00
clk	This round of clk driver and framework updates is heavy on the driver update	2019-07-17 10:07:48 -07:00
clocksource	clocksource/drivers/npcm: Fix misuse of GENMASK macro	2019-07-10 11:05:26 +02:00
connector	…
counter	Staging / IIO driver update for 5.3-rc1	2019-07-11 15:36:02 -07:00
cpufreq	Merge branch 'pm-cpufreq'	2019-07-18 09:49:30 +02:00
cpuidle	Merge branch 'pm-cpufreq'	2019-07-18 09:49:30 +02:00
crypto	Merge branch 'linus' of git://git.kernel.org/pub/scm/linux/kernel/git/herbert/crypto-2.6	2019-07-19 12:23:37 -07:00
dax	Merge branch 'work.mount0' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs	2019-07-19 10:42:02 -07:00
dca	…
devfreq	…
dio	…
dma	dmaengine updates for v5.3-rc1	2019-07-17 09:55:43 -07:00
dma-buf	Merge branch 'work.mount0' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs	2019-07-19 10:42:02 -07:00
edac	…
eisa	…
extcon	…
firewire	…
firmware	ARM: SoC-related driver updates	2019-07-19 17:13:56 -07:00
fpga	mm: add account_locked_vm utility function	2019-07-16 19:23:25 -07:00
fsi	…
gnss	…
gpio	GPIO fixes for the v5.3 merge window:	2019-07-17 13:05:21 -07:00
gpu	drm fixes for -rc1:	2019-07-19 12:29:43 -07:00
hid	Linux 5.2	2019-07-15 09:42:32 -07:00
hsi	…
hv	proc/sysctl: add shared variables for range check	2019-07-18 17:08:07 -07:00
hwmon	ARM: SoC-related driver updates	2019-07-19 17:13:56 -07:00
hwspinlock	…
hwtracing	coresight: Make the coresight_device_fwnode_match declaration's fwnode parameter const	2019-07-12 14:42:05 -07:00
i2c	Merge branch 'i2c/for-5.3' of git://git.kernel.org/pub/scm/linux/kernel/git/wsa/linux	2019-07-15 21:10:39 -07:00
i3c	* Drop support for 10-bit I2C addresses	2019-07-09 09:04:31 -07:00
ide	It's been a relatively busy cycle for docs:	2019-07-09 12:34:26 -07:00
idle	…
iio	Driver Core and debugfs changes for 5.3-rc1	2019-07-12 12:24:03 -07:00
infiniband	SCSI fixes on 20190720	2019-07-20 10:04:58 -07:00
input	Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input	2019-07-20 12:22:30 -07:00
interconnect	…
iommu	iommu/amd: fix a crash in iova_magazine_free_pfns	2019-07-21 09:57:13 -07:00
ipack	TTY / Serial driver updates for 5.3-rc1	2019-07-11 15:38:21 -07:00
irqchip	irqchip/gic-v3-its: Fix misuse of GENMASK macro	2019-07-10 11:04:17 +02:00
isdn	ISDN: hfcsusb: checking idx of ep configuration	2019-07-15 11:10:31 -07:00
leds	LED updates for 5.3-rc1	2019-07-09 08:59:39 -07:00
lightnvm	…
macintosh	powerpc updates for 5.3	2019-07-13 16:08:36 -07:00
mailbox	- stm32: race fix by adding a spinlock	2019-07-14 16:36:51 -07:00
mcb	…
md	- Fix zone state management race in DM zoned target by eliminating	2019-07-18 14:49:33 -07:00
media	Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next	2019-07-11 10:55:49 -07:00
memory	Kbuild updates for v5.3 (2nd)	2019-07-20 09:34:55 -07:00
memstick	MMC core:	2019-07-11 18:11:21 -07:00
message	SCSI misc on 20190709	2019-07-11 15:14:01 -07:00
mfd	- Core Frameworks	2019-07-15 20:18:40 -07:00
misc	Merge branch 'work.mount0' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs	2019-07-19 10:42:02 -07:00
mmc	MMC core:	2019-07-11 18:11:21 -07:00
mtd	docs: mtd: move it to the driver-api book	2019-07-15 09:20:28 -03:00
mux	…
net	Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net	2019-07-19 10:06:06 -07:00
nfc	…
ntb	New feature to add support for NTB virtual MSI interrupts, the ability	2019-07-21 09:46:59 -07:00
nubus	…
nvdimm	Merge branch 'akpm' (patches from Andrew)	2019-07-19 09:45:58 -07:00
nvme	for-linus-20190715	2019-07-15 21:20:52 -07:00
nvmem	Driver Core and debugfs changes for 5.3-rc1	2019-07-12 12:24:03 -07:00
of	virtio, vhost: fixes, features, performance	2019-07-17 11:26:09 -07:00
opp	pci-v5.3-changes	2019-07-15 20:44:49 -07:00
oprofile	vfs: Convert oprofilefs to use the new mount API	2019-07-04 22:01:59 -04:00
parisc	…
parport	It's been a relatively busy cycle for docs:	2019-07-09 12:34:26 -07:00
pci	New feature to add support for NTB virtual MSI interrupts, the ability	2019-07-21 09:46:59 -07:00
pcmcia	It's been a relatively busy cycle for docs:	2019-07-09 12:34:26 -07:00
perf	docs: perf: move to the admin-guide	2019-07-15 09:20:27 -03:00
phy	…
pinctrl	This is the bulk of pin control changes for the v5.3 kernel	2019-07-13 15:02:27 -07:00
platform	platform/x86: asus: Rename "fan mode" to "fan boost mode"	2019-07-17 19:07:58 +03:00
pnp	docs: driver-api: add a series of orphaned documents	2019-07-15 11:03:02 -03:00
power	power supply and reset changes for the v5.3 series	2019-07-15 21:06:15 -07:00
powercap	powercap/rapl: Add Ice Lake NNPI support to RAPL driver	2019-07-11 15:08:58 +02:00
pps	drivers/pps/pps.c: clear offset flags in PPS_SETPARAMS ioctl	2019-07-16 19:23:24 -07:00
ps3	…
ptp	…
pwm	pwm: Changes for v5.3-rc1	2019-07-09 08:57:45 -07:00
rapidio	Merge branch 'akpm' (patches from Andrew)	2019-07-17 08:58:04 -07:00
ras	…
regulator	- Core Frameworks	2019-07-15 20:18:40 -07:00
remoteproc	remoteproc updates for v5.3	2019-07-17 11:44:41 -07:00
reset	ARM: SoC-related driver updates	2019-07-19 17:13:56 -07:00
rpmsg	…
rtc	RTC for 5.3	2019-07-17 10:03:50 -07:00
s390	SCSI fixes on 20190720	2019-07-20 10:04:58 -07:00
sbus	…
scsi	SCSI fixes on 20190720	2019-07-20 10:04:58 -07:00
sfi	…
sh	…
siox	…
slimbus	…
sn	…
soc	ARM: Device-tree updates	2019-07-19 17:19:24 -07:00
soundwire	soundwire updates for v5.3-rc1	2019-07-05 08:15:08 +02:00
spi	Driver Core and debugfs changes for 5.3-rc1	2019-07-12 12:24:03 -07:00
spmi	…
ssb	…
staging	docs conversion for v5.3-rc1	2019-07-16 12:21:41 -07:00
target	SCSI misc on 20190709	2019-07-11 15:14:01 -07:00
tc	…
tee	…
thermal	More power management updates for 5.3-rc1	2019-07-18 09:32:28 -07:00
thunderbolt	Driver Core and debugfs changes for 5.3-rc1	2019-07-12 12:24:03 -07:00
tty	ARM: SoC platform updates	2019-07-19 17:05:08 -07:00
uio	…
usb	Merge branch 'work.mount0' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs	2019-07-19 10:42:02 -07:00
uwb	…
vfio	VFIO updates for v5.3-rc1	2019-07-17 11:23:13 -07:00
vhost	virtio, vhost: fixes, features, performance	2019-07-17 11:26:09 -07:00
video	- New Functionality	2019-07-16 09:25:04 -07:00
virt	…
virtio	Merge branch 'work.mount0' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs	2019-07-19 10:42:02 -07:00
visorbus	…
vlynq	…
vme	…
w1	docs: driver-api: add a series of orphaned documents	2019-07-15 11:03:02 -03:00
watchdog	watchdog: digicolor_wdt: Remove unused variable in dc_wdt_probe	2019-07-15 08:49:11 +02:00
xen	xen: fixes and features for 5.3-rc1	2019-07-19 11:41:26 -07:00
zorro	…
Kconfig	…
Makefile	…