linux_dsm_epyc7002/drivers
Brian King b0e17a9b0d scsi: ipr: Fix scsi-mq lockdep issue
Fixes the following lockdep warning that can occur when scsi-mq is
enabled with ipr due to ipr calling scsi_unblock_requests from irq
context. The fix is to move the call to scsi_unblock_requests to ipr's
existing workqueue.

stack backtrace:
CPU: 28 PID: 0 Comm: swapper/28 Not tainted 4.13.0-rc2-gcc6x-gf74c89b #1
Call Trace:
[c000001fffe97550] [c000000000b50818] dump_stack+0xe8/0x160 (unreliable)
[c000001fffe97590] [c0000000001586d0] print_usage_bug+0x2d0/0x390
[c000001fffe97640] [c000000000158f34] mark_lock+0x7a4/0x8e0
[c000001fffe976f0] [c00000000015a000] __lock_acquire+0x6a0/0x1a70
[c000001fffe97860] [c00000000015befc] lock_acquire+0xec/0x2e0
[c000001fffe97930] [c000000000b71514] _raw_spin_lock+0x44/0x70
[c000001fffe97960] [c0000000005b60f4] blk_mq_sched_dispatch_requests+0xa4/0x2a0
[c000001fffe979c0] [c0000000005acac0] __blk_mq_run_hw_queue+0x100/0x2c0
[c000001fffe97a00] [c0000000005ad478] __blk_mq_delay_run_hw_queue+0x118/0x130
[c000001fffe97a40] [c0000000005ad61c] blk_mq_start_hw_queues+0x6c/0xa0
[c000001fffe97a80] [c000000000797aac] scsi_kick_queue+0x2c/0x60
[c000001fffe97aa0] [c000000000797cf0] scsi_run_queue+0x210/0x360
[c000001fffe97b10] [c00000000079b888] scsi_run_host_queues+0x48/0x80
[c000001fffe97b40] [c0000000007b6090] ipr_ioa_bringdown_done+0x70/0x1e0
[c000001fffe97bc0] [c0000000007bc860] ipr_reset_ioa_job+0x80/0xf0
[c000001fffe97bf0] [c0000000007b4d50] ipr_reset_timer_done+0xd0/0x100
[c000001fffe97c30] [c0000000001937bc] call_timer_fn+0xdc/0x4b0
[c000001fffe97cf0] [c000000000193d08] expire_timers+0x178/0x330
[c000001fffe97d60] [c0000000001940c8] run_timer_softirq+0xb8/0x120
[c000001fffe97de0] [c000000000b726a8] __do_softirq+0x168/0x6d8
[c000001fffe97ef0] [c0000000000df2c8] irq_exit+0x108/0x150
[c000001fffe97f10] [c000000000017bf4] __do_irq+0x2a4/0x4a0
[c000001fffe97f90] [c00000000002da50] call_do_irq+0x14/0x24
[c0000007fad93aa0] [c000000000017e8c] do_IRQ+0x9c/0x140
[c0000007fad93af0] [c000000000008b98] hardware_interrupt_common+0x138/0x140

Reported-by: Michael Ellerman <mpe@ellerman.id.au>
Signed-off-by: Brian King <brking@linux.vnet.ibm.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2017-08-08 11:49:51 -04:00
..
accessibility
acpi Device properties framework updates for v4.13-rc1 2017-07-10 15:23:45 -07:00
amba
android
ata Merge branch 'for-4.13' of git://git.kernel.org/pub/scm/linux/kernel/git/tj/libata 2017-07-06 09:41:58 -07:00
atm net: convert sock.sk_wmem_alloc from atomic_t to refcount_t 2017-07-01 07:39:08 -07:00
auxdisplay
base Merge branch 'akpm' (patches from Andrew) 2017-07-10 16:58:42 -07:00
bcma
block Merge branch 'for-linus' of git://git.kernel.dk/linux-block 2017-07-11 15:36:52 -07:00
bluetooth Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next 2017-07-05 12:31:59 -07:00
bus main drm pull for v4.13 2017-07-09 18:48:37 -07:00
cdrom
char Some small fixes for IPMI, and one medium sized changed. 2017-07-10 10:59:29 -07:00
clk ARM: Device-tree updates 2017-07-04 14:37:25 -07:00
clocksource ARM: SoC driver updates 2017-07-04 14:47:47 -07:00
connector
cpufreq More power management updates for v4.13-rc1 2017-07-10 15:16:21 -07:00
cpuidle powerpc updates for 4.13 2017-07-07 13:55:45 -07:00
crypto This is the first pull request for the new dma-mapping subsystem 2017-07-06 19:20:54 -07:00
dax Writeback error handling fixes (pile #2) 2017-07-07 19:38:17 -07:00
dca
devfreq
dio
dma dmaengine updates for 4.13-rc1 2017-07-08 12:36:50 -07:00
dma-buf
edac EDAC, pnd2: Fix Apollo Lake DIMM detection 2017-06-29 10:37:50 +02:00
eisa
extcon
firewire
firmware This is the first pull request for the new dma-mapping subsystem 2017-07-06 19:20:54 -07:00
fmc
fpga
fsi
gpio Merge (most of) tag 'mfd-next-4.13' of git://git.kernel.org/pub/scm/linux/kernel/git/lee/mfd 2017-07-07 13:30:05 -07:00
gpu main drm pull for v4.13 2017-07-09 18:48:37 -07:00
hid Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jikos/hid 2017-07-10 09:22:48 -07:00
hsi HSI changes for the v4.13 series 2017-07-04 14:28:22 -07:00
hv SCSI misc on 20170704 2017-07-06 12:10:33 -07:00
hwmon
hwspinlock
hwtracing Char/Misc patches for 4.13-rc1 2017-07-03 20:55:59 -07:00
i2c Char/Misc patches for 4.13-rc1 2017-07-03 20:55:59 -07:00
ide
idle intel_idle: Use more common logging style 2017-06-29 22:58:35 +02:00
iio hwmon updates for v4.13: 2017-07-04 11:48:27 -07:00
infiniband Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jmorris/linux-security 2017-07-07 17:06:28 -07:00
input Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input 2017-07-08 12:39:37 -07:00
iommu This is the first pull request for the new dma-mapping subsystem 2017-07-06 19:20:54 -07:00
ipack
irqchip arm64 updates for 4.13: 2017-07-05 17:09:27 -07:00
isdn Merge branch 'work.misc-set_fs' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs 2017-07-05 13:13:32 -07:00
leds LED updates for 4.13 2017-07-06 11:32:40 -07:00
lguest
lightnvm lightnvm: pblk: remove unnecessary checks 2017-07-07 13:17:36 -06:00
macintosh Merge branch 'work.misc-set_fs' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs 2017-07-05 13:13:32 -07:00
mailbox Merge branch 'mailbox-for-next' of git://git.linaro.org/landing-teams/working/fujitsu/integration 2017-07-07 10:24:07 -07:00
mcb
md Merge branch 'for-linus' of git://git.kernel.dk/linux-block 2017-07-11 15:36:52 -07:00
media main drm pull for v4.13 2017-07-09 18:48:37 -07:00
memory ARM: SoC driver updates 2017-07-04 14:47:47 -07:00
memstick
message
mfd chrome-platform-for-linus-4.13 2017-07-11 09:55:47 -07:00
misc powerpc updates for 4.13 2017-07-07 13:55:45 -07:00
mmc This is the big bulk of pin control changes for the v4.13 series: 2017-07-06 11:38:59 -07:00
mtd This is the big bulk of pin control changes for the v4.13 series: 2017-07-06 11:38:59 -07:00
mux
net pci-v4.13-changes 2017-07-08 15:51:57 -07:00
nfc NFC 4.13 pull request 2017-07-01 14:30:39 -07:00
ntb
nubus
nvdimm Merge branch 'for-linus' of git://git.kernel.dk/linux-block 2017-07-11 15:36:52 -07:00
nvme Merge branch 'for-linus' of git://git.kernel.dk/linux-block 2017-07-11 15:36:52 -07:00
nvmem
of Device properties framework updates for v4.13-rc1 2017-07-10 15:23:45 -07:00
oprofile
parisc parisc: ->mapping_error 2017-07-05 21:46:42 +02:00
parport
pci pci-v4.13-changes 2017-07-08 15:51:57 -07:00
pcmcia
perf
phy
pinctrl This is the big bulk of pin control changes for the v4.13 series: 2017-07-06 11:38:59 -07:00
platform chrome-platform-for-linus-4.13 2017-07-11 09:55:47 -07:00
pnp This is the bulk of GPIO changes for the v4.13 series: 2017-07-07 12:40:27 -07:00
power power supply and reset changes for the v4.13 series 2017-07-04 14:25:14 -07:00
powercap powercap/RAPL: prevent overridding bits outside of the mask 2017-06-28 00:38:34 +02:00
pps
ps3
ptp ptp: dte: Use LL suffix for 64-bit constants 2017-07-06 11:40:58 +01:00
pwm
rapidio
ras arm64 updates for 4.13: 2017-07-05 17:09:27 -07:00
regulator Merge remote-tracking branches 'regulator/topic/settle', 'regulator/topic/tps65910' and 'regulator/topic/tps65917' into regulator-next 2017-07-03 16:52:21 +01:00
remoteproc remoteproc/keystone: Fix circular dependencies for ARM configs 2017-06-27 16:21:34 -07:00
reset ARM: SoC driver updates 2017-07-04 14:47:47 -07:00
rpmsg rpmsg updates for v4.13 2017-07-06 15:38:31 -07:00
rtc
s390 libnvdimm for 4.13 2017-07-07 09:44:06 -07:00
sbus
scsi scsi: ipr: Fix scsi-mq lockdep issue 2017-08-08 11:49:51 -04:00
sfi
sh drivers/sh/intc/virq.c: delete an error message for a failed memory allocation in add_virq_to_pirq() 2017-07-06 16:24:30 -07:00
sn
soc ARM: SoC driver updates 2017-07-04 14:47:47 -07:00
spi Merge branch 'for-spi' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs 2017-07-08 10:41:53 -07:00
spmi
ssb
staging Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jikos/hid 2017-07-10 09:22:48 -07:00
target Merge branch 'for-linus' of git://git.kernel.dk/linux-block 2017-07-11 15:36:52 -07:00
tc
tee
thermal Merge (most of) tag 'mfd-next-4.13' of git://git.kernel.org/pub/scm/linux/kernel/git/lee/mfd 2017-07-07 13:30:05 -07:00
thunderbolt
tty This is the bulk of GPIO changes for the v4.13 series: 2017-07-07 12:40:27 -07:00
uio
usb USB fixes for 4.13-rc1 2017-07-07 13:42:04 -07:00
uwb driver core patches for 4.13-rc1 2017-07-03 20:27:48 -07:00
vfio
vhost Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next 2017-07-05 12:31:59 -07:00
video main drm pull for v4.13 2017-07-09 18:48:37 -07:00
virt
virtio
vlynq
vme
w1
watchdog Merge git://www.linux-watchdog.org/linux-watchdog 2017-07-11 09:59:37 -07:00
xen This is the first pull request for the new dma-mapping subsystem 2017-07-06 19:20:54 -07:00
zorro
Kconfig
Makefile