Nicholas Bellinger 5259a06ef9 target: Fix percpu_ref_put race in transport_lun_remove_cmd ... This patch fixes a percpu_ref_put race for se_lun->lun_ref in transport_lun_remove_cmd() where ->lun_ref could end up being put more than once per command via different target completion and fabric release contexts. It adds a cmpxchg() for se_cmd->lun_ref_active to ensure that percpu_ref_put() is only ever called once per se_cmd. This bug was manifesting itself as a LUN shutdown regression bug in >= v3.13 code, where percpu_ref_kill() would end up hanging indefinately due to the incorrect percpu_ref count. (Change se_cmd->lun_ref_active from bool -> int to force at least a 4-byte cmpxchg with MIPS ll/sc ins. - Fengguang) Reported-by: Tommy Apel <tommyapeldk@gmail.com> Cc: Tommy Apel <tommyapeldk@gmail.com> Cc: <stable@vger.kernel.org> #3.13+ Signed-off-by: Nicholas Bellinger <nab@linux-iscsi.org>		2014-01-30 03:58:34 -08:00
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accessibility	…
acpi	Merge branch 'acpica'	2013-11-27 01:03:27 +01:00
amba	DMA-API: amba: get rid of separate dma_mask	2013-10-31 14:48:38 +00:00
ata	SCSI fixes on 20131206	2013-12-06 08:30:18 -08:00
atm	atm: idt77252: fix dev refcnt leak	2013-11-19 15:53:02 -05:00
auxdisplay	…
base	Merge branches 'pm-cpuidle' and 'pm-cpufreq'	2013-12-06 02:17:59 +01:00
bcma	Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next	2013-11-13 17:40:34 +09:00
block	Merge branch 'for-linus' of git://git.kernel.dk/linux-block	2013-12-05 15:33:27 -08:00
bluetooth	Merge branch 'master' of git://git.kernel.org/pub/scm/linux/kernel/git/bluetooth/bluetooth	2013-11-05 15:58:21 -05:00
bus	Merge branch 'for-linus' of git://git.linaro.org/people/rmk/linux-arm	2013-11-14 08:51:29 +09:00
cdrom	…
char	Merge git://git.kernel.org/pub/scm/linux/kernel/git/herbert/crypto-2.6	2013-11-23 16:18:25 -08:00
clk	Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jikos/trivial	2013-11-15 16:47:22 -08:00
clocksource	clocksource: arm_arch_timer: Hide eventstream Kconfig on non-ARM	2013-11-21 00:06:52 +01:00
connector	connector: improved unaligned access error fix	2013-11-14 17:19:20 -05:00
cpufreq	Merge branches 'pm-cpuidle' and 'pm-cpufreq'	2013-12-06 02:17:59 +01:00
cpuidle	cpuidle: Check for dev before deregistering it.	2013-12-03 22:05:22 +01:00
crypto	crypto: talitos - fix aead sglen for case 'dst != src'	2013-11-28 22:25:17 +08:00
dca	…
devfreq	Merge branch 'pm-devfreq'	2013-11-07 19:24:20 +01:00
dio	…
dma	Merge branch 'next' of git://git.infradead.org/users/vkoul/slave-dma	2013-11-20 13:20:24 -08:00
edac	Merge branch 'linux_next' of git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/linux-edac	2013-11-18 14:51:52 -08:00
eisa	…
extcon	…
firewire	[SCSI] Disable WRITE SAME for RAID and virtual host adapter drivers	2013-11-29 08:48:39 +04:00
firmware	efi-pstore: Make efi-pstore return a unique id	2013-11-29 10:11:06 +00:00
fmc	…
gpio	gpiolib: change a warning to debug message when failing to get gpio	2013-12-03 13:10:48 +01:00
gpu	drm/qxl: fix memory leak in release list handling	2013-11-29 08:36:15 +10:00
hid	Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jikos/hid	2013-11-27 20:41:54 -08:00
hsi	…
hv	…
hwmon	Merge branch 'acpica'	2013-11-27 01:03:27 +01:00
hwspinlock	…
i2c	Merge branch 'i2c/for-current' of git://git.kernel.org/pub/scm/linux/kernel/git/wsa/linux	2013-11-29 09:55:13 -08:00
ide	More ACPI and power management updates for 3.13-rc1	2013-11-20 13:25:04 -08:00
idle	intel_idle: Fixed C6 state on Avoton/Rangeley processors	2013-11-28 14:35:26 +01:00
iio	First round of fixes for IIO in the 3.13 cycle.	2013-11-25 12:50:11 -08:00
infiniband	iscsi-target: Convert gfp_t parameter to task state bitmask	2014-01-25 06:58:52 +00:00
input	Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input	2013-11-24 10:45:29 -08:00
iommu	Don't try to compile shmobile-iommu outside of ARM	2013-11-15 18:57:42 -08:00
ipack	…
irqchip	Merge branch 'irq-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip	2013-12-02 10:15:39 -08:00
isdn	net: rework recvmsg handler msg_name and msg_namelen logic	2013-11-20 21:52:30 -05:00
leds	leds: pwm: Fix for deferred probe in DT booted mode	2013-12-02 11:53:17 -08:00
lguest	x86, asmlinkage, lguest: Pass in globals into assembler statement	2013-11-07 12:13:05 +10:30
macintosh	powerpc/windfarm: Fix XServe G5 fan control Makefile issue	2013-11-27 11:35:47 +11:00
mailbox	…
md	Merge branch 'for-linus' of git://git.kernel.dk/linux-block	2013-12-05 15:33:27 -08:00
media	Merge branch 'next' of git://git.infradead.org/users/vkoul/slave-dma	2013-11-20 13:20:24 -08:00
memory	…
memstick	tree-wide: use reinit_completion instead of INIT_COMPLETION	2013-11-15 09:32:21 +09:00
message	drivers/message/i2o/driver.c: add missing destroy_workqueue() on error in i2o_driver_register()	2013-11-13 12:09:26 +09:00
mfd	Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jikos/trivial	2013-11-15 16:47:22 -08:00
misc	[SCSI] enclosure: fix WARN_ON in dual path device removing	2013-12-02 11:13:14 -08:00
mmc	mmc: omap: Fix I2C dependency and make driver usable with device tree	2013-11-26 15:51:16 -08:00
mtd	Merge branch 'next' of git://git.infradead.org/users/vkoul/slave-dma	2013-11-20 13:20:24 -08:00
net	Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net	2013-12-02 10:09:07 -08:00
nfc	…
ntb	NTB driver bug fixes to address a missed call to pci_enable_msix,	2013-11-26 11:15:12 -08:00
nubus	…
of	Merge branch 'for-linus-dma-masks' of git://git.linaro.org/people/rmk/linux-arm	2013-11-14 07:55:21 +09:00
oprofile	…
parisc	…
parport	Kconfig cleanups for v3.13	2013-11-15 14:05:15 -08:00
pci	remove obsolete references to powertweak	2013-11-27 20:34:32 -08:00
pcmcia	DeviceTree updates for 3.13. This is a bit larger pull request than	2013-11-12 16:52:17 +09:00
phy	…
pinctrl	sh-pfc: sh7372: Fix pin bias setup	2013-12-03 10:38:41 +01:00
platform	sony-laptop: do not scribble keyboard backlight registers on resume	2013-11-26 13:03:36 +09:00
pnp	PNP: fix restoring devices after hibernation	2013-12-05 02:01:55 +01:00
power	Highlights:	2013-11-18 15:35:09 -08:00
powercap	PowerCap: Fix mode for energy counter	2013-12-05 02:05:48 +01:00
pps	drivers/pps/clients/pps-gpio.c: remove redundant of_match_ptr	2013-11-13 12:09:35 +09:00
ps3	…
ptp	…
pwm	pwm: samsung: Fix kernel warning while unexporting a channel	2013-11-01 11:17:57 +01:00
rapidio	…
regulator	Merge remote-tracking branch 'regulator/fix/pfuze100' into regulator-linus	2013-11-24 14:02:50 +00:00
remoteproc	…
reset	…
rpmsg	…
rtc	ARM: drivers/rtc/rtc-at91rm9200.c: disable interrupts at shutdown	2013-11-21 16:42:27 -08:00
s390	s390/dasd: validate request size before building CCW/TCW request	2013-11-20 09:04:54 +01:00
sbus	…
scsi	qla2xxx: Configure NPIV fc_vport via tcm_qla2xxx_npiv_make_lport	2014-01-19 02:22:12 +00:00
sfi	…
sh	…
sn	…
spi	Merge remote-tracking branches 'spi/fix/bcm2835', 'spi/fix/bcm63xx', 'spi/fix/mpc512x-psc', 'spi/fix/mxs', 'spi/fix/pxa2xx', 'spi/fix/qspi', 'spi/fix/rspi' and 'spi/fix/txx9' into spi-linus	2013-11-28 11:31:35 +00:00
ssb	…
staging	Staging: tidspbridge: disable driver	2013-11-27 09:32:49 -08:00
target	target: Fix percpu_ref_put race in transport_lun_remove_cmd	2014-01-30 03:58:34 -08:00
tc	…
thermal	Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net	2013-11-19 15:50:47 -08:00
tty	Revert "n_gsm: race between ld close and gsmtty open"	2013-11-25 18:30:21 -08:00
uio	uio: we cannot mmap unaligned page contents	2013-12-02 11:50:37 -08:00
usb	Merge branch 'for-next' of git://git.kernel.org/pub/scm/linux/kernel/git/nab/target-pending	2013-11-22 10:52:03 -08:00
uwb	Driver Core / sysfs patches for 3.13-rc1	2013-11-07 11:42:15 +09:00
vfio	…
vhost	percpu_ida: Make percpu_ida_alloc + callers accept task state bitmask	2014-01-23 20:17:18 +00:00
video	video: vt8500: fix error handling in probe()	2013-12-04 10:50:16 +02:00
virt	…
virtio	Nothing really exciting: some groundwork for changing virtio endian, and	2013-11-15 13:28:47 +09:00
vlynq	…
vme	…
w1	drivers/w1/masters/w1-gpio.c: use dev_get_platdata()	2013-11-15 09:32:21 +09:00
watchdog	watchdog: w83627hf: Use helper functions to access superio registers	2013-11-18 21:34:19 +01:00
xen	Bug-fixes:	2013-12-02 10:12:01 -08:00
zorro	…
Kconfig	ACPI and power management updates for 3.13-rc1	2013-11-14 13:41:48 +09:00
Makefile	ACPI and power management updates for 3.13-rc1	2013-11-14 13:41:48 +09:00