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Tony Battersby 7772855a99 sg: fix EWOULDBLOCK errors with scsi-mq 
With scsi-mq enabled, userspace programs can get unexpected EWOULDBLOCK
(a.k.a. EAGAIN) errors when submitting commands to the SCSI generic
driver.  Fix by calling blk_get_request() with GFP_KERNEL instead of
GFP_ATOMIC.

Note: to avoid introducing a potential deadlock, this patch should be
applied after the patch titled "sg: fix unkillable I/O wait deadlock
with scsi-mq".

Cc: <stable@vger.kernel.org> # 3.17+
Signed-off-by: Tony Battersby <tonyb@cybernetics.com>
Acked-by: Douglas Gilbert <dgilbert@interlog.com>
Tested-by: Douglas Gilbert <dgilbert@interlog.com>
Signed-off-by: James Bottomley <JBottomley@Parallels.com>
2015-02-17 06:57:54 -08:00
..
accessibility
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acpi
Merge branch 'acpi-video'
2014-12-29 21:24:13 +01:00
amba
Char/Misc driver patches for 3.19-rc1
2014-12-14 16:43:47 -08:00
android
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ata
libata: fixup oops in ata_eh_link_report()
2015-01-20 19:41:41 +01:00
atm
Driver core patches for 3.19-rc1
2014-12-14 16:10:09 -08:00
auxdisplay
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base
Merge branches 'pm-domains', 'powercap' and 'pm-tools'
2014-12-29 21:24:00 +01:00
bcma
Merge branch 'upstream' of git://git.linux-mips.org/pub/scm/ralf/upstream-linus
2014-12-11 17:56:37 -08:00
block
Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/sage/ceph-client
2014-12-17 16:03:12 -08:00
bluetooth
Merge branch 'for-upstream' of git://git.kernel.org/pub/scm/linux/kernel/git/bluetooth/bluetooth-next
2014-12-15 13:23:09 -05:00
bus
Driver core patches for 3.19-rc1
2014-12-14 16:10:09 -08:00
cdrom
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char
Merge branch 'drm-fixes' of git://people.freedesktop.org/~airlied/linux
2014-12-25 16:04:15 -08:00
clk
Please consider pulling the clk framework changes toward 3.19. It is
2014-12-20 16:42:36 -08:00
clocksource
Fixes for 3.19
2014-12-30 15:27:20 +01:00
connector
cn: verify msg->len before making callback
2014-11-26 19:09:01 -08:00
coresight
coresight-replicator: remove .owner field for driver
2014-11-26 19:28:11 -08:00
cpufreq
Merge branches 'pm-cpufreq' and 'pm-cpuidle'
2014-12-29 21:23:41 +01:00
cpuidle
Merge branches 'pm-cpufreq' and 'pm-cpuidle'
2014-12-29 21:23:41 +01:00
crypto
Driver core patches for 3.19-rc1
2014-12-14 16:10:09 -08:00
dca
…
devfreq
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dio
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dma
Driver core patches for 3.19-rc1
2014-12-14 16:10:09 -08:00
dma-buf
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edac
Driver core patches for 3.19-rc1
2014-12-14 16:10:09 -08:00
eisa
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extcon
Char/Misc driver patches for 3.19-rc1
2014-12-14 16:43:47 -08:00
firewire
firewire: sbp2: replace card lock by target lock
2014-12-10 20:53:21 +01:00
firmware
Driver core patches for 3.19-rc1
2014-12-14 16:10:09 -08:00
fmc
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gpio
Driver core patches for 3.19-rc1
2014-12-14 16:10:09 -08:00
gpu
Revert "drm/gem: Warn on illegal use of the dumb buffer interface v2"
2014-12-24 13:13:22 +10:00
hid
Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jikos/hid
2014-12-12 10:26:47 -08:00
hsi
* misc. fixes in omap-ssi and nokia-modem drivers
2014-12-15 17:33:47 -08:00
hv
Char/Misc driver patches for 3.19-rc1
2014-12-14 16:43:47 -08:00
hwmon
Merge branch 'next' of git://git.kernel.org/pub/scm/linux/kernel/git/rzhang/linux
2014-12-17 10:16:27 -08:00
hwspinlock
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i2c
Merge branch 'i2c/for-next' of git://git.kernel.org/pub/scm/linux/kernel/git/wsa/linux
2014-12-20 13:52:52 -08:00
ide
Driver core patches for 3.19-rc1
2014-12-14 16:10:09 -08:00
idle
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iio
Staging patches for 3.19-rc1
2014-12-15 18:06:13 -08:00
infiniband
SCSI for-linus on 20141220
2014-12-20 13:42:57 -08:00
input
Revert "Input: atmel_mxt_ts - use deep sleep mode when stopped"
2014-12-31 12:59:34 -08:00
iommu
Merge branch 'x86-apic-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
2014-12-19 14:02:02 -08:00
ipack
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irqchip
Merge branch 'irq-irqdomain-arm-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
2014-12-15 17:30:09 -08:00
isdn
Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jikos/trivial
2014-12-12 10:08:06 -08:00
leds
More ACPI and power management updates for 3.19-rc1
2014-12-18 20:28:33 -08:00
lguest
virtio: allow finalize_features to fail
2014-12-09 16:32:32 +02:00
macintosh
macintosh: therm_pm72: delete deprecated driver
2014-12-19 19:32:47 +01:00
mailbox
Driver core patches for 3.19-rc1
2014-12-14 16:10:09 -08:00
mcb
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md
dm: fix missed error code if .end_io isn't implemented by target_type
2014-12-17 12:31:13 -05:00
media
More ACPI and power management updates for 3.19-rc1
2014-12-18 20:28:33 -08:00
memory
MTD updates for 3.19:
2014-12-17 09:59:26 -08:00
memstick
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message
scsi: drop reason argument from ->change_queue_depth
2014-11-24 14:45:27 +01:00
mfd
Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input
2014-12-30 16:59:59 -08:00
misc
ses: Add power_status to SES device slot
2015-01-09 15:44:19 +01:00
mmc
mmc: core: stop trying to switch width when only one bit is supported
2014-12-29 14:49:28 +01:00
mtd
MTD updates for 3.19:
2014-12-17 09:59:26 -08:00
net
ne2k-pci: Add pci_disable_device in error handling
2014-12-27 02:20:55 -05:00
nfc
More ACPI and power management updates for 3.19-rc1
2014-12-18 20:28:33 -08:00
ntb
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nubus
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of
ARM: SoC/iommu configuration for 3.19
2014-12-16 14:53:01 -08:00
oprofile
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parisc
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parport
Char/Misc driver patches for 3.19-rc1
2014-12-14 16:43:47 -08:00
pci
Merge branch 'x86-apic-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
2014-12-19 14:02:02 -08:00
pcmcia
Char/Misc driver patches for 3.19-rc1
2014-12-14 16:43:47 -08:00
phy
phy: qcom-ufs: add support for 14nm phy
2015-01-20 19:43:26 +01:00
pinctrl
Driver core patches for 3.19-rc1
2014-12-14 16:10:09 -08:00
platform
platform-drivers-x86 for 3.19
2014-12-18 20:24:55 -08:00
pnp
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power
More ACPI and power management updates for 3.19-rc1
2014-12-18 20:28:33 -08:00
powercap
powercap / RAPL: add IDs for future Xeon CPUs
2014-12-17 02:35:42 +01:00
pps
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ps3
…
ptp
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pwm
pwm: Changes for v3.19-rc1
2014-12-17 10:10:51 -08:00
rapidio
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ras
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regulator
regulator: Fix for v3.19
2014-12-29 13:24:38 -08:00
remoteproc
Driver core patches for 3.19-rc1
2014-12-14 16:10:09 -08:00
reset
Driver core patches for 3.19-rc1
2014-12-14 16:10:09 -08:00
rpmsg
rpmsg: use less buffers when vrings are small
2014-11-26 18:24:36 +02:00
rtc
Driver core patches for 3.19-rc1
2014-12-14 16:10:09 -08:00
s390
Driver core patches for 3.19-rc1
2014-12-14 16:10:09 -08:00
sbus
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scsi
sg: fix EWOULDBLOCK errors with scsi-mq
2015-02-17 06:57:54 -08:00
sfi
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sh
drivers: sh / PM: Replace CONFIG_PM_RUNTIME with CONFIG_PM
2014-12-05 03:08:24 +01:00
sn
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soc
Merge branch 'drm-next' of git://people.freedesktop.org/~airlied/linux
2014-12-15 15:52:01 -08:00
spi
Merge remote-tracking branches 'spi/fix/img-spfi' and 'spi/fix/msiof' into spi-linus
2014-12-24 12:57:54 +00:00
spmi
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ssb
Merge branch 'upstream' of git://git.linux-mips.org/pub/scm/ralf/upstream-linus
2014-12-11 17:56:37 -08:00
staging
[regression] braino in "lustre: use is_root_inode()"
2014-12-26 22:43:19 -05:00
target
SCSI for-linus on 20141220
2014-12-20 13:42:57 -08:00
tc
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thermal
Merge branches 'thermal-core', 'thermal-soc' and 'thermal-int340x' of .git into next
2014-12-24 10:38:30 +08:00
thunderbolt
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tty
tty: 8250_omap: Replace CONFIG_PM_RUNTIME with CONFIG_PM
2014-12-19 15:27:58 +01:00
uio
Char/Misc driver patches for 3.19-rc1
2014-12-14 16:43:47 -08:00
usb
SCSI for-linus on 20141220
2014-12-20 13:42:57 -08:00
uwb
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vfio
VFIO updates for v3.19-rc1
2014-12-17 10:44:22 -08:00
vhost
vhost: relax used address alignment
2014-12-29 10:55:06 +02:00
video
OMAPDSS: SDI: fix output port_num
2014-12-30 11:18:30 +02:00
virt
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virtio
vhost/virtio: virtio 1.0 related fixes
2014-12-18 20:50:30 -08:00
vlynq
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vme
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w1
Char/Misc driver patches for 3.19-rc1
2014-12-14 16:43:47 -08:00
watchdog
watchdog: imx2_wdt: Fix the argument of watchdog_active()
2014-12-18 16:01:20 +01:00
xen
scsi: Conditionally compile in constants.c
2015-01-09 15:44:31 +01:00
zorro
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Kconfig
Staging patches for 3.19-rc1
2014-12-15 18:06:13 -08:00
Makefile
Staging patches for 3.19-rc1
2014-12-15 18:06:13 -08:00