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Ming Lei 938ece711c virtio-scsi: replace target spinlock with seqcount 
The spinlock of tgt_lock is only for serializing read and write
req_vq, one lockless seqcount is enough for the purpose.

On one 16core VM with vhost-scsi backend, the patch can improve
IOPS with 3% on random read test.

Signed-off-by: Ming Lei <ming.lei@canonical.com>
[Add initialization in virtscsi_target_alloc. - Paolo]
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Signed-off-by: Christoph Hellwig <hch@lst.de>
2014-07-25 17:17:00 -04:00
..
accessibility
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acpi
Merge branch 'acpi-video'
2014-07-10 21:04:25 +02:00
amba
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ata
scsi: use 64-bit LUNs
2014-07-17 22:07:37 +02:00
atm
atm: fore200e.c: Cleaning up uninitialized variables
2014-06-02 17:11:03 -07:00
auxdisplay
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base
DMA, CMA: fix possible memory leak
2014-06-23 16:47:44 -07:00
bcma
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block
zram: revalidate disk after capacity change
2014-07-03 09:21:53 -07:00
bluetooth
Bluetooth: Ignore H5 non-link packets in non-active state
2014-06-23 18:22:48 +02:00
bus
bus/arm-cci: add dependency on OF && CPU_V7
2014-06-17 17:09:35 +02:00
cdrom
Merge branch 'for-linus' of git://git.kernel.dk/linux-block
2014-06-11 08:41:17 -07:00
char
i8k: Fix non-SMP operation
2014-07-09 16:45:36 -07:00
clk
This batch of fixes is for a handful of clock drivers from Allwinner,
2014-07-13 12:21:04 -07:00
clocksource
clocksource: exynos_mct: Register the timer for stable udelay
2014-07-05 06:40:23 +09:00
connector
Char / misc driver patches for 3.16-rc1
2014-06-03 08:06:56 -07:00
cpufreq
cpufreq: Makefile: fix compilation for davinci platform
2014-07-09 02:54:15 +02:00
cpuidle
cpuidle: mvebu: Fix the name of the states
2014-06-18 21:54:46 +02:00
crypto
crypto: caam - fix memleak in caam_jr module
2014-07-10 16:59:13 +08:00
dca
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devfreq
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dio
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dma
Update imx-sdma cyclic handling to report residue
2014-07-01 12:23:42 +05:30
edac
PCI changes for the v3.16 merge window:
2014-06-02 12:15:19 -07:00
eisa
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extcon
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firewire
IEEE 1394 (FireWire) subsystem fix: The 1394 drivers cannot and are not supposed
2014-07-14 17:17:53 -07:00
firmware
efi-pstore: Fix an overflow on 32-bit builds
2014-06-27 07:30:32 +01:00
fmc
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gpio
gpio: mcp23s08: Eliminates redundant checking.
2014-07-05 01:14:06 +02:00
gpu
Merge branch 'drm-fixes' of git://people.freedesktop.org/~airlied/linux
2014-07-10 20:37:33 -07:00
hid
Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jikos/hid
2014-07-07 13:13:03 -07:00
hsi
hsi: omap_ssi_port: use normal module refcounting
2014-06-05 00:59:05 +02:00
hv
Drivers: hv: util: Fix a bug in the KVP code
2014-07-09 14:34:35 -07:00
hwmon
hwmon: (adc128d818) Drop write support on inX_input attributes
2014-07-07 09:48:23 -07:00
hwspinlock
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i2c
i2c: sun6i-p2wi: Remove duplicate inclusion of module.h
2014-06-27 14:39:36 +02:00
ide
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idle
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iio
iio: ti_am335x_adc: Fix: Use same step id at FIFOs both ends
2014-07-08 21:21:22 +01:00
infiniband
Merge branch 'for-next' of git://git.kernel.org/pub/scm/linux/kernel/git/nab/target-pending
2014-06-12 22:38:32 -07:00
input
Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input
2014-06-09 18:46:02 -07:00
iommu
iommu/amd: Fix small race between invalidate_range_end/start
2014-06-20 16:14:22 +02:00
ipack
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irqchip
irqchip: spear_shirq: Fix interrupt offset
2014-06-21 23:26:39 +00:00
isdn
net: ppp: don't call sk_chk_filter twice
2014-07-14 16:15:12 -07:00
leds
Merge branch 'for-next' of git://git.kernel.org/pub/scm/linux/kernel/git/cooloney/linux-leds
2014-06-12 13:08:09 -07:00
lguest
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macintosh
powerpc/macintosh/smu.c: Fix closing brace followed by if
2014-06-24 12:43:15 +10:00
mailbox
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mcb
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md
. Fix DM multipath IO hang regression from 3.15 due to logic bug in
2014-07-11 09:33:36 -07:00
media
Merge branch 'topic/omap3isp' of git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/linux-media
2014-06-12 23:04:28 -07:00
memory
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memstick
drivers/memstick/host/rtsx_pci_ms.c: add cancel_work when remove driver
2014-06-23 16:47:44 -07:00
message
mptfusion: tweak null pointer checks
2014-07-25 17:16:58 -04:00
mfd
mfd: ab8500: Fix dt irq mapping
2014-06-26 13:34:15 +01:00
misc
ARM: SoC fixes for 3.16
2014-06-25 12:19:01 -07:00
mmc
Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next
2014-06-12 14:27:40 -07:00
mtd
mtd: cfi_cmdset_0001.c: add support for Sharp LH28F640BF NOR
2014-07-13 22:22:47 -07:00
net
hso: fix deadlock when receiving bursts of data
2014-07-14 19:27:34 -07:00
nfc
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ntb
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nubus
kernel/printk: use symbolic defines for console loglevels
2014-06-04 16:54:17 -07:00
of
Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net
2014-07-15 08:42:52 -07:00
oprofile
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parisc
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parport
parport: convert use of typedef ctl_table to struct ctl_table
2014-06-06 16:08:15 -07:00
pci
PCI: Fix unaligned access in AF transaction pending test
2014-06-17 15:40:13 -06:00
pcmcia
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phy
USB fixes for 3.16-rc5
2014-07-12 14:13:10 -07:00
pinctrl
pinctrl: berlin: fix an error code in berlin_pinctrl_probe()
2014-07-05 01:15:35 +02:00
platform
Merge branch 'for_linus' of git://cavan.codon.org.uk/platform-drivers-x86
2014-06-10 16:58:32 -07:00
pnp
Merge branches 'pnp', 'powercap', 'pm-runtime' and 'pm-opp'
2014-06-03 23:13:00 +02:00
power
ACPI and power management updates for 3.16-rc1
2014-06-04 08:57:16 -07:00
powercap
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pps
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ps3
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ptp
ptp: ptp_pch depends on x86_32
2014-06-17 15:43:48 -07:00
pwm
pwm: Changes for v3.16-rc1
2014-06-11 14:06:55 -07:00
rapidio
rapidio/tsi721: use pci_enable_msix_exact() instead of pci_enable_msix()
2014-06-06 16:08:13 -07:00
regulator
Merge remote-tracking branches 'regulator/fix/bcm590xx', 'regulator/fix/palmas' and 'regulator/fix/tps65218' into regulator-linus
2014-06-28 14:01:04 +01:00
remoteproc
remoteproc: da8xx: don't select CMA on no-MMU
2014-06-17 17:09:36 +02:00
reset
ARM: SoC driver changes
2014-06-02 16:35:49 -07:00
rpmsg
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rtc
drivers/rtc/rtc-puv3.c: remove "&dev->" for typo issue MIME-Version: 1.0
2014-06-20 08:22:39 +08:00
s390
scsi: use 64-bit LUNs
2014-07-17 22:07:37 +02:00
sbus
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scsi
virtio-scsi: replace target spinlock with seqcount
2014-07-25 17:17:00 -04:00
sfi
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sh
SH Driver Update for v3.16
2014-06-06 11:44:09 -07:00
sn
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soc
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spi
Merge remote-tracking branches 'spi/fix/pxa2xx', 'spi/fix/qup' and 'spi/fix/sh-sci' into spi-linus
2014-06-28 14:01:23 +01:00
spmi
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ssb
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staging
scsi: use 64-bit LUNs
2014-07-17 22:07:37 +02:00
target
scsi: use 64-bit LUNs
2014-07-17 22:07:37 +02:00
tc
TC: Handle device_register() errors.
2014-06-26 10:48:23 +01:00
thermal
thermal: ti-soc-thermal: ti-bandgap.c: Cleaning up wrong address is checked
2014-07-01 09:52:35 +08:00
tty
serial: imx: Fix build breakage
2014-07-11 17:43:13 -07:00
uio
Revert "uio: fix vma io range check in mmap"
2014-06-17 16:07:08 -07:00
usb
scsi: use 64-bit LUNs
2014-07-17 22:07:37 +02:00
uwb
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vfio
A handful of VFIO bug fixes for v3.16
2014-06-07 20:12:15 -07:00
vhost
vhost-scsi: don't open-code kvfree
2014-06-23 09:22:48 +03:00
video
fb: adv7393: add missing semicolon
2014-07-01 13:18:38 +03:00
virt
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virtio
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vlynq
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vme
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w1
w1: mxc_w1: Fix incorrect "presence" status
2014-06-19 17:51:46 -07:00
watchdog
Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/s390/linux
2014-06-21 06:47:01 -10:00
xen
Fixes:
2014-07-17 08:02:35 -10:00
zorro
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Kconfig
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Makefile
Char / misc driver patches for 3.16-rc1
2014-06-03 08:06:56 -07:00