Wei Fang 72d8c36ec3 scsi: fix race between simultaneous decrements of ->host_failed ... sas_ata_strategy_handler() adds the works of the ata error handler to system_unbound_wq. This workqueue asynchronously runs work items, so the ata error handler will be performed concurrently on different CPUs. In this case, ->host_failed will be decreased simultaneously in scsi_eh_finish_cmd() on different CPUs, and become abnormal. It will lead to permanently inequality between ->host_failed and ->host_busy, and scsi error handler thread won't start running. IO errors after that won't be handled. Since all scmds must have been handled in the strategy handler, just remove the decrement in scsi_eh_finish_cmd() and zero ->host_busy after the strategy handler to fix this race. Fixes: 50824d6c56 ("[SCSI] libsas: async ata-eh") Cc: stable@vger.kernel.org Signed-off-by: Wei Fang <fangwei1@huawei.com> Reviewed-by: James Bottomley <jejb@linux.vnet.ibm.com> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>		2016-06-08 23:08:04 -04:00
..
ABI	Merge branch 'stable/for-linus-4.7' of git://git.kernel.org/pub/scm/linux/kernel/git/konrad/ibft	2016-05-18 15:30:04 -07:00
accounting	taskstats: fix nl parsing in accounting/getdelays.c	2016-04-27 12:50:14 -04:00
acpi	ACPI / tables: Convert initrd table override to table upgrade mechanism	2016-04-18 23:59:09 +02:00
aoe
arm	ARM: SoC 64-bit changes for v4.6	2016-03-20 15:08:45 -07:00
arm64	arm64: add the initrd region to the linear mapping explicitly	2016-04-14 16:20:45 +01:00
auxdisplay
backlight
blackfin
block	block: kill blk_queue_flush()	2016-04-12 16:00:39 -06:00
blockdev	cpqarray: remove it from the kernel	2016-03-14 09:06:01 -06:00
bus-devices
cdrom
cgroup-v1	Merge branch 'for-4.6' of git://git.kernel.org/pub/scm/linux/kernel/git/tj/cgroup	2016-03-18 20:25:49 -07:00
cma
connector
console
cpu-freq	Documentation: cpufreq: intel_pstate: fix typo	2016-02-18 20:31:53 +01:00
cpuidle
cris
crypto	crypto: doc - Use ahash	2016-02-06 15:33:11 +08:00
development-process
device-mapper	dm stats: fix spelling mistake in Documentation	2016-05-05 15:25:54 -04:00
devicetree	Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input	2016-05-18 17:12:23 -07:00
dmaengine	Merge branch 'topic/async' into for-linus	2016-01-06 15:17:47 +05:30
DocBook	media updates for v4.7-rc1	2016-05-18 17:03:51 -07:00
driver-model	Merge branch 'for-linus' of git://ftp.arm.linux.org.uk/~rmk/linux-arm	2016-03-19 16:31:54 -07:00
dvb	[media] media: change email address	2016-01-25 12:01:08 -02:00
early-userspace
EDID
extcon
fault-injection	net: Add support for CHANGEUPPER notifier error injection	2015-12-03 11:49:23 -05:00
fb
features	arm64 updates for 4.6:	2016-03-17 20:03:47 -07:00
filesystems	Merge branch 'work.preadv2' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs	2016-05-17 15:05:23 -07:00
firmware_class
fmc
fpga	usage documentation for FPGA manager core	2015-10-07 18:07:20 +01:00
frv
gpio	gpio: clarify open drain/source docs	2016-04-27 10:23:44 +02:00
hid
hwmon	hwmon: (it87) Add support for IT8628E	2016-04-19 06:32:38 -07:00
i2c	Doc: i2c: Fix typo in Documentation/i2c	2016-02-10 13:12:14 -07:00
ia64
ide
iio	iio: Documentation: Add IIO configfs documentation	2015-12-03 18:19:28 +00:00
infiniband	staging/rdma/hfi1: Method to toggle "fast ECN" detection	2016-03-10 20:37:50 -05:00
input	Input: clarify we want BTN_TOOL_<name> on proximity	2016-04-06 10:23:09 -07:00
ioctl	gpio: uapi: use 0xB4 as ioctl() major	2016-03-10 16:02:52 +07:00
isdn	isdn: i4l: move active-isdn drivers to staging	2016-03-05 15:00:38 -08:00
ja_JP	Doc: ja_JP: Fix a typo in HOWTO	2016-02-10 13:14:37 -07:00
kbuild	kbuild: document recursive dependency limitation / resolution	2015-10-08 15:36:16 +02:00
kdump
ko_KR	Documentation/ko_KR: update maintainer information	2016-02-17 14:10:39 -07:00
laptops
leds	Documentation: leds: Add description of brightness setting API	2016-01-04 09:57:31 +01:00
livepatch	Merge branches 'for-4.7/core', 'for-4.7/livepatching-doc' and 'for-4.7/livepatching-ppc64' into for-linus	2016-05-17 12:06:35 +02:00
locking	locking/Documentation/lockdep: Fix spelling mistakes	2016-04-28 10:40:57 +02:00
m68k
memory-devices
metag
mic	Char/Misc patches for 4.6-rc1	2016-03-17 13:47:50 -07:00
mips
misc-devices	Merge char-misc-next into staging-next	2016-02-22 14:46:24 -08:00
mmc	mmc: core: Remove MMC_CLKGATE	2015-10-26 16:00:09 +01:00
mn10300
mtd	Documentation: mtd: improve nand_ecc.txt for readability and correctness	2015-11-17 17:05:14 -08:00
namespaces
netlabel
networking	bpf, doc: fix typo on bpf_asm descriptions	2016-05-16 22:19:15 -04:00
nfc
nios2
nvdimm	libnvdimm: documentation clarifications	2015-11-12 09:55:23 -08:00
nvmem
parisc
PCI
pcmcia
phy
platform
power	PM / runtime: Document steps for device removal	2016-04-05 03:46:59 +02:00
powerpc	cxl: Support to flash a new image on the adapter from a guest	2016-03-09 23:39:56 +11:00
pps
prctl	Documentation: Fix int/unsigned int comparison	2016-02-17 14:09:43 -07:00
pti
ptp	Another relatively boring cycle for the docs tree: typo fixes, translation	2016-03-17 12:09:35 -07:00
rapidio	rapidio: add mport char device driver	2016-03-22 15:36:02 -07:00
RCU	Merge branches 'doc.2016.04.19a', 'exp.2016.03.31d', 'fixes.2016.03.31d' and 'torture.2016.04.21a' into HEAD	2016-04-21 13:48:20 -07:00
s390	s390/zcore: remove /sys/kernel/debug/zcore/mem	2015-11-27 09:24:12 +01:00
scheduler
scsi	scsi: fix race between simultaneous decrements of ->host_failed	2016-06-08 23:08:04 -04:00
security	keys, trusted: seal with a TPM2 authorization policy	2015-12-20 15:27:13 +02:00
serial	tty: Remove chars_in_buffer() line discipline method	2016-01-27 15:01:44 -08:00
sh
sound	Merge branch 'topic/hda-mst' into for-next	2016-02-10 09:25:15 +01:00
spi	spi: tools: move spidev_test metadata	2015-11-30 12:14:12 +00:00
sysctl	Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next	2016-05-17 16:26:30 -07:00
target	target/user: Report capability of handling out-of-order completions to userspace	2016-03-10 21:49:09 -08:00
thermal	thermal: doc: Add details of devm_thermal_zone_of_sensor_{register,unregister}	2016-03-09 10:51:41 -08:00
timers	Another relatively boring cycle for the docs tree: typo fixes, translation	2016-03-17 12:09:35 -07:00
tpm
trace	sched/fair: Gather CPU load functions under a more conventional namespace	2016-04-23 14:20:41 +02:00
usb	doc: usb: Fix typo in gadget_multi documentation	2016-04-13 12:02:28 -07:00
vDSO
video4linux	[media] samples: v4l: from Documentation to samples directory	2016-05-09 18:34:37 -03:00
virtual	One of the largest releases for KVM... Hardly any generic improvement,	2016-03-16 09:55:35 -07:00
vm	mm: thp: set THP defrag by default to madvise and add a stall-free defrag option	2016-03-17 15:09:34 -07:00
w1	w1: masters: omap_hdq: add support for 1-wire mode	2015-10-05 04:47:09 +01:00
watchdog	Merge git://www.linux-watchdog.org/linux-watchdog	2016-03-19 19:35:51 -07:00
wimax
x86	Merge branch 'x86/urgent' into x86/asm, to fix semantic conflict	2016-04-22 10:13:53 +02:00
xtensa
zh_CN	Documentation: Chinese translation of arm64/silicon-errata.txt	2016-02-17 14:08:07 -07:00
00-INDEX
adding-syscalls.txt
applying-patches.txt
assoc_array.txt
atomic_ops.txt	locking/atomics, cmpxchg: Privatize the inclusion of asm/cmpxchg.h	2015-09-13 10:35:46 +02:00
bad_memory.txt
basic_profiling.txt
bcache.txt
binfmt_misc.txt
braille-console.txt
bt8xxgpio.txt
btmrvl.txt
BUG-HUNTING
bus-virt-phys-mapping.txt
cachetlb.txt
cgroup-v2.txt	Merge branch 'for-4.6-ns' of git://git.kernel.org/pub/scm/linux/kernel/git/tj/cgroup	2016-03-21 10:05:13 -07:00
Changes	There is a nice new document from Neil on how pathname lookups work and	2015-11-05 15:59:24 -08:00
circular-buffers.txt
clk.txt
coccinelle.txt
CodeOfConflict
CodingStyle	Documentation/CodingStyle: add space before parenthesis in example macro	2016-01-25 12:36:28 -07:00
cpu-hotplug.txt	Documentation: cpu-hotplug: Fix sysfs mount instructions	2015-12-10 11:35:30 -07:00
cpu-load.txt
cputopology.txt
crc32.txt
dcdbas.txt
debugging-modules.txt
debugging-via-ohci1394.txt
dell_rbu.txt
devices.txt
digsig.txt
DMA-API-HOWTO.txt	dma-mapping: always provide the dma_map_ops based implementation	2016-01-20 17:09:18 -08:00
DMA-API.txt	DMA-API: fix confusing sentence in Documentation/DMA-API.txt	2016-01-11 18:29:00 -07:00
DMA-attributes.txt	ARM: 8506/1: common: DMA-mapping: add DMA_ATTR_ALLOC_SINGLE_PAGES attribute	2016-02-11 15:33:38 +00:00
dma-buf-sharing.txt	dma-buf: Update docs for SYNC ioctl	2016-03-21 09:26:45 +01:00
DMA-ISA-LPC.txt
dontdiff	Documentation: dontdiff: remove media from dontdiff	2015-11-11 10:08:07 -07:00
dynamic-debug-howto.txt
edac.txt	EDAC: Remove references to bluesmoke.sourceforge.net	2015-11-26 14:46:06 +01:00
efi-stub.txt	doc: efi-stub.txt: Fix arm64 paths	2015-12-14 15:24:03 +00:00
eisa.txt
email-clients.txt	A few more documentation patches that wandered in and have no reason to	2015-11-13 09:19:05 -08:00
flexible-arrays.txt
futex-requeue-pi.txt
gcov.txt
gdb-kernel-debugging.txt
highuid.txt
HOWTO	Documentation: Howto: Fixed subtitles style	2016-03-09 15:30:03 -07:00
hsi.txt
hw_random.txt	hwrng: doc - Fix device node name reference /dev/hw_random => /dev/hwrng	2015-09-21 22:00:41 +08:00
hwspinlock.txt
init.txt
initrd.txt
intel_txt.txt
Intel-IOMMU.txt	iommu/vt-d: Fix link to Intel IOMMU Specification	2016-01-29 12:32:12 +01:00
io_ordering.txt
io-mapping.txt
iostats.txt
IPMI.txt	ipmi watchdog : add panic_wdt_timeout parameter	2015-11-16 06:28:43 -06:00
IRQ-affinity.txt
IRQ-domain.txt	irqdomain: Documentation updates	2015-10-13 19:01:25 +02:00
IRQ.txt
irqflags-tracing.txt
isapnp.txt
java.txt
kasan.txt	mm, kasan: SLAB support	2016-03-25 16:37:42 -07:00
kcov.txt	kernel: add kcov code coverage	2016-03-22 15:36:02 -07:00
kernel-doc-nano-HOWTO.txt
kernel-docs.txt	Documentation: translations: update linux cross reference link	2016-01-11 18:26:58 -07:00
kernel-parameters.txt	Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/s390/linux	2016-05-18 12:17:16 -07:00
kernel-per-CPU-kthreads.txt	irq_poll: make blk-iopoll available outside the block layer	2015-12-11 11:52:24 -08:00
kmemcheck.txt
kmemleak.txt
kobject.txt
kprobes.txt
kref.txt
kselftest.txt	Documentation: kselftest: Remove duplicate word	2016-03-09 15:33:38 -07:00
ldm.txt
local_ops.txt
lockup-watchdogs.txt	kernel/watchdog.c: add sysctl knob hardlockup_panic	2015-11-05 19:34:48 -08:00
logo.gif
logo.txt
lzo.txt
magic-number.txt
mailbox.txt
Makefile	[media] samples: v4l: from Documentation to samples directory	2016-05-09 18:34:37 -03:00
ManagementStyle
md-cluster.txt	md-cluster: update the documentation	2016-01-06 11:39:06 +11:00
md.txt
memory-barriers.txt	locking/Documentation: Clarify that ACQUIRE applies to loads, RELEASE applies to stores	2016-04-28 10:57:51 +02:00
memory-hotplug.txt	memory-hotplug: add automatic onlining policy for the newly added memory	2016-03-15 16:55:16 -07:00
men-chameleon-bus.txt
module-signing.txt	modsign: Fix documentation on module signing enforcement parameter.	2016-03-12 01:48:11 -07:00
mono.txt
nommu-mmap.txt
ntb.txt
numastat.txt
oops-tracing.txt
padata.txt
parport-lowlevel.txt
parport.txt
percpu-rw-semaphore.txt
phy.txt	phy: core: Allow children node to be overridden	2016-04-29 16:39:39 +02:00
pi-futex.txt
pinctrl.txt
pnp.txt
preempt-locking.txt
printk-formats.txt	mm, printk: introduce new format string for flags	2016-03-15 16:55:16 -07:00
pwm.txt
ramoops.txt
rbtree.txt	documentation: fix small typo in rbtree.txt	2015-09-13 14:38:50 -06:00
remoteproc.txt
rfkill.txt	rfkill: Add documentation about LED triggers	2016-02-24 09:13:12 +01:00
robust-futex-ABI.txt
robust-futexes.txt
rpmsg.txt	rpmsg: use module_rpmsg_driver in existing drivers and examples	2016-05-06 11:09:01 -07:00
rtc.txt	rtc: implement a sysfs interface for clock offset	2016-03-14 17:08:16 +01:00
SAK.txt
SecurityBugs
serial-console.txt
sgi-ioc4.txt
SM501.txt
smsc_ece1099.txt
sparse.txt
stable_api_nonsense.txt
stable_kernel_rules.txt	stable_kernel_rules.txt: Remove extra space after Cc:	2015-11-20 16:54:57 -07:00
static-keys.txt	locking/static_keys: Fix up the static keys documentation	2015-09-15 07:12:06 +02:00
SubmitChecklist
SubmittingDrivers
SubmittingPatches	SubmittingPatches: fix spelling of "git send-email"	2016-01-25 12:30:18 -07:00
svga.txt
sysfs-rules.txt
sysrq.txt	mm, oom: do not panic for oom kills triggered from sysrq	2015-09-08 15:35:28 -07:00
this_cpu_ops.txt
ubsan.txt	UBSAN: run-time undefined behavior sanity checker	2016-01-20 17:09:18 -08:00
unaligned-memory-access.txt
unicode.txt
unshare.txt
vfio.txt
VGA-softcursor.txt
vgaarbiter.txt
video-output.txt
vme_api.txt
volatile-considered-harmful.txt
workqueue.txt
xillybus.txt
xz.txt
zorro.txt