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Matthew R. Ochs 1d3324c382 scsi: cxlflash: Fix to avoid EEH and host reset collisions 
The EEH reset handler is ignorant to the current state of the driver
when processing a frozen event and initiating a device reset. This can
be an issue if an EEH event occurs while a user or stack initiated reset
is executing. More specifically, if an EEH occurs while the SCSI host
reset handler is active, the reset initiated by the EEH thread will
likely collide with the host reset thread. This can leave the device in
an inconsistent state, or worse, cause a system crash.

As a remedy, the EEH handler is updated to evaluate the device state and
take appropriate action (proceed, wait, or disconnect host). The host
reset handler is also updated to handle situations where an EEH occurred
during a host reset. In such situations, the host reset handler will
delay reporting back a success to give the EEH reset an opportunity to
complete.

Signed-off-by: Matthew R. Ochs <mrochs@linux.vnet.ibm.com>
Acked-by: Uma Krishnan <ukrishn@linux.vnet.ibm.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2016-09-14 12:45:06 -04:00
..
accessibility
acpi More ACPI updates for v4.8-rc1 2016-08-05 23:29:05 -04:00
amba
android
ata New LED class driver: 2016-07-27 14:03:52 -07:00
atm drivers: atm: nicstar: Use the correct function to free some resources 2016-07-19 11:30:26 -07:00
auxdisplay
base More power management updates for v4.8-rc1 2016-08-05 23:26:16 -04:00
bcma wireless-drivers-next patches for 4.8 2016-07-25 11:09:19 -07:00
block block: rename bio bi_rw to bi_opf 2016-08-07 14:41:02 -06:00
bluetooth Bluetooth: btmrvl: reset is_suspending flag in failure path 2016-07-18 10:13:02 +02:00
bus ARM: SoC driver updates for v4.8 2016-08-01 18:36:01 -04:00
cdrom
char RTC for 4.8 2016-08-05 09:48:22 -04:00
clk treewide: replace obsolete _refok by __ref 2016-08-02 17:31:41 -04:00
clocksource ARM: SoC driver updates for v4.8 2016-08-01 18:36:01 -04:00
connector
cpufreq More power management updates for v4.8-rc1 2016-08-05 23:26:16 -04:00
cpuidle powerpc updates for 4.8 # 1 2016-07-30 21:01:36 -07:00
crypto Merge branch 'linus' of git://git.kernel.org/pub/scm/linux/kernel/git/herbert/crypto-2.6 2016-08-01 14:28:42 -04:00
dax
dca
devfreq
dio
dma dmaengine updates for 4.8-rc1 2016-07-28 15:45:17 -07:00
dma-buf dma-buf: Release module reference on creation failure 2016-07-18 14:10:49 +02:00
edac * Altera Arria10 ethernet FIFO buffer support (Thor Thayer) 2016-07-27 13:40:47 -07:00
eisa
extcon
firewire
firmware tree-wide: replace config_enabled() with IS_ENABLED() 2016-08-04 08:50:07 -04:00
fmc
fpga drivers/fpga/Kconfig: fix build failure 2016-08-04 08:50:07 -04:00
gpio This is the bulk of GPIO changes for the v4.8 kernel cycle. 2016-07-26 19:16:01 -07:00
gpu Merge tag 'drm-for-v4.8-zpos' of git://people.freedesktop.org/~airlied/linux 2016-08-07 16:35:08 -07:00
hid Merge branch 'for-4.8/hid-led' into for-linus 2016-07-28 10:49:23 +02:00
hsi
hv
hwmon hwmon updates for v4.8 (take 2) 2016-08-01 16:49:13 -04:00
hwspinlock
hwtracing Merge branch 'smp-hotplug-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip 2016-07-29 13:55:30 -07:00
i2c powerpc updates for 4.8 # 1 2016-07-30 21:01:36 -07:00
ide Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/ide 2016-07-29 13:29:06 -07:00
idle Merge branch 'x86-cpu-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip 2016-07-30 12:56:26 -07:00
iio
infiniband Second round of merge items for 4.8 2016-08-04 20:26:31 -04:00
input Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input 2016-08-05 23:24:15 -04:00
iommu dma-mapping: use unsigned long for dma_attrs 2016-08-04 08:50:07 -04:00
ipack
irqchip tree-wide: replace config_enabled() with IS_ENABLED() 2016-08-04 08:50:07 -04:00
isdn
leds powerpc updates for 4.8 # 1 2016-07-30 21:01:36 -07:00
lguest
lightnvm block: get rid of bio_rw and READA 2016-07-20 17:37:01 -06:00
macintosh powerpc updates for 4.8 # 1 2016-07-30 21:01:36 -07:00
mailbox mailbox: Fix format and type mismatches in Broadcom PDC driver 2016-07-28 21:27:31 +05:30
mcb
md block: rename bio bi_rw to bi_opf 2016-08-07 14:41:02 -06:00
media media updates for v4.8-rc1 2016-08-04 09:59:37 -04:00
memory MTD updates for v4.8: 2016-08-02 17:05:11 -04:00
memstick memstick: don't allocate unused major for ms_block 2016-08-02 17:31:41 -04:00
message scsi: mpt: Remove deprecated create_singlethread_workqueue 2016-09-02 06:13:57 -04:00
mfd ARM: SoC driver updates for v4.8 2016-08-01 18:36:01 -04:00
misc virtio/vhost: new features for 4.8 2016-08-06 09:20:13 -04:00
mmc MMC core: 2016-07-31 21:36:58 -04:00
mtd This pull request contains mostly cleanups and minor 2016-08-04 19:51:49 -04:00
net virtio/vhost: new features for 4.8 2016-08-06 09:20:13 -04:00
nfc NFC 4.8 pull request 2016-07-20 23:39:36 -07:00
ntb NTB: ntb_hw_intel: use local variable pdev 2016-08-05 10:34:13 -04:00
nubus
nvdimm block: rename bio bi_rw to bi_opf 2016-08-07 14:41:02 -06:00
nvme PCI changes for the v4.8 merge window: 2016-08-02 17:12:29 -04:00
nvmem
of ramoops: use DT reserved-memory bindings 2016-08-05 11:21:36 -07:00
oprofile
parisc dma-mapping: use unsigned long for dma_attrs 2016-08-04 08:50:07 -04:00
parport
pci ACPI / hotplug / PCI: Runtime resume bridges before bus rescans 2016-08-04 21:33:58 -04:00
pcmcia
perf Merge branch 'smp-hotplug-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip 2016-07-29 13:55:30 -07:00
phy MMC core: 2016-07-31 21:36:58 -04:00
pinctrl This is the bulk of pin control changes for the v4.8 kernel cycle. 2016-07-28 17:06:51 -07:00
platform pwm: Changes for v4.8-rc1 2016-08-06 00:01:33 -04:00
pnp PNP: pnpbios: add header file to fix build errors 2016-07-27 18:52:54 +02:00
power ARM: SoC driver updates for v4.8 2016-08-01 18:36:01 -04:00
powercap
pps pps: do not crash when failed to register 2016-07-23 10:25:54 +09:00
ps3
ptp
pwm pwm: Changes for v4.8-rc1 2016-08-06 00:01:33 -04:00
rapidio rapidio/switches: add driver for IDT gen3 switches 2016-08-02 19:35:38 -04:00
ras
regulator pwm: Changes for v4.8-rc1 2016-08-06 00:01:33 -04:00
remoteproc dma-mapping: use unsigned long for dma_attrs 2016-08-04 08:50:07 -04:00
reset
rpmsg
rtc RTC for 4.8 2016-08-05 09:48:22 -04:00
s390 zfcp: trace full payload of all SAN records (req,resp,iels) 2016-08-12 16:17:12 -04:00
sbus
scsi scsi: cxlflash: Fix to avoid EEH and host reset collisions 2016-09-14 12:45:06 -04:00
sfi
sh
sn
soc ARM: SoC driver updates for v4.8 2016-08-01 18:36:01 -04:00
spi ARM: DT updates for v4.8 2016-08-01 18:37:45 -04:00
spmi
ssb
staging Merge branch 'for-linus-2' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs 2016-08-07 10:01:14 -04:00
target target: iblock_execute_sync_cache() should use bio_set_op_attrs() 2016-08-07 14:41:02 -06:00
tc
thermal
thunderbolt
tty tree-wide: replace config_enabled() with IS_ENABLED() 2016-08-04 08:50:07 -04:00
uio
usb More USB patches for 4.8-rc1 2016-08-05 23:07:43 -04:00
uwb
vfio vfio: platform: check reset call return code during release 2016-07-19 10:54:45 -06:00
vhost virtio/vhost: new features for 4.8 2016-08-06 09:20:13 -04:00
video dma-mapping: use unsigned long for dma_attrs 2016-08-04 08:50:07 -04:00
virt
virtio virtio/vhost: new features for 4.8 2016-08-06 09:20:13 -04:00
vlynq
vme
w1 w1:omap_hdq: fix regression 2016-08-02 19:35:40 -04:00
watchdog watchdog: gpio_wdt: Fix missing platform_set_drvdata() in gpio_wdt_probe() 2016-07-27 10:47:43 +02:00
xen dma-mapping: use unsigned long for dma_attrs 2016-08-04 08:50:07 -04:00
zorro
Kconfig
Makefile virtio/vhost: new features for 4.8 2016-08-06 09:20:13 -04:00