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Dmitry Bogdanov e76b7c5e25 scsi: efct: Decrease area under spinlock 
Under the session level spinlock node->active_ios_lock in
efct_scsi_io_alloc() we are taking another spinlock for the port.  This
leads to contention between sessions and even between I/Os in the same
session.

Reduce the locked region to active_ios list for which active_ios_lock is
intended. Spinlock CPU usage decreases from 18% down to 13%. IOPS are
increased from 220 kIOPS to 264 kIOPS for one LUN.

Link: https://lore.kernel.org/r/20210914105539.6942-4-d.bogdanov@yadro.com
Reviewed-by: Roman Bolshakov <r.bolshakov@yadro.com>
Reviewed-by: Ram Vegesna <ram.vegesna@broadcom.com>
Signed-off-by: Dmitry Bogdanov <d.bogdanov@yadro.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2021-09-22 00:04:56 -04:00
..
accessibility
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acpi
Additional ACPI updates for 5.15-rc1
2021-09-10 13:29:04 -07:00
amba
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android
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ata
libata: Add ATA_HORKAGE_NO_NCQ_ON_ATI for Samsung 860 and 870 SSD.
2021-09-03 08:06:02 -06:00
atm
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auxdisplay
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base
Merge branches 'pm-cpufreq', 'pm-sleep' and 'pm-em'
2021-09-10 20:26:08 +02:00
bcma
Driver core update for 5.15-rc1
2021-09-01 08:44:42 -07:00
block
virtio,vdpa,vhost: features, fixes
2021-09-11 14:48:42 -07:00
bluetooth
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bus
ARM: SoC drivers for 5.15
2021-09-01 15:25:28 -07:00
cdrom
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char
IPMI: A couple of very minor fixes for style and rate limiting
2021-09-12 11:44:58 -07:00
clk
One patch to fix an unused variable warning in a Qualcomm clk driver.
2021-09-11 10:05:56 -07:00
clocksource
- converted Pistachio platform to use MIPS generic kernel
2021-09-03 11:11:54 -07:00
comedi
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connector
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counter
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cpufreq
Merge branches 'pm-cpufreq', 'pm-sleep' and 'pm-em'
2021-09-10 20:26:08 +02:00
cpuidle
- Core Frameworks
2021-09-07 12:38:59 -07:00
crypto
pci-v5.15-changes
2021-09-07 19:13:42 -07:00
cxl
cxl for v5.15
2021-09-09 11:48:27 -07:00
dax
libnvdimm for v5.15
2021-09-09 11:39:57 -07:00
dca
…
devfreq
devfreq: use HZ macros
2021-09-08 11:50:26 -07:00
dio
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dma
dmaengine updates for v5.15-rc1
2021-09-09 11:07:47 -07:00
dma-buf
dma-buf: DMABUF_SYSFS_STATS should depend on DMA_SHARED_BUFFER
2021-09-07 12:42:21 +05:30
edac
Updates to the interrupt core and driver subsystems:
2021-08-30 14:38:37 -07:00
eisa
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extcon
…
firewire
FireWire (IEEE 1394) subsystem updates:
2021-09-11 09:47:33 -07:00
firmware
- Add the tegra3 thermal sensor and fix the compilation testing on
2021-09-11 09:20:57 -07:00
fpga
Driver core update for 5.15-rc1
2021-09-01 08:44:42 -07:00
fsi
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gnss
…
gpio
gpio updates for v5.15
2021-09-07 12:27:27 -07:00
gpu
drm fixes for 5.15-rc1
2021-09-10 11:22:23 -07:00
greybus
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hid
Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/hid/hid
2021-09-02 14:30:46 -07:00
hsi
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hv
hyperv-next for 5.15
2021-09-01 18:25:20 -07:00
hwmon
Merge branch 'akpm' (patches from Andrew)
2021-09-08 12:55:35 -07:00
hwspinlock
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hwtracing
Driver core update for 5.15-rc1
2021-09-01 08:44:42 -07:00
i2c
platform-drivers-x86 for v5.15-1
2021-09-02 13:49:39 -07:00
i3c
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idle
…
iio
Merge branch 'akpm' (patches from Andrew)
2021-09-08 12:55:35 -07:00
infiniband
RDMA v5.15 merge window 2nd Pull Request
2021-09-09 11:14:14 -07:00
input
Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input
2021-09-11 09:08:28 -07:00
interconnect
interconnect changes for 5.15
2021-08-24 15:33:04 +02:00
iommu
virtio,vdpa,vhost: features, fixes
2021-09-11 14:48:42 -07:00
ipack
TTY / Serial patches for 5.15-rc1
2021-09-01 09:51:16 -07:00
irqchip
Merge branch irq/qcom-pdc-nowake-cleanup into irq/irqchip-next
2021-08-23 09:50:46 +01:00
isdn
Kbuild updates for v5.15
2021-09-03 15:33:47 -07:00
leds
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macintosh
Kbuild updates for v5.15
2021-09-03 15:33:47 -07:00
mailbox
mailbox: cmdq: add multi-gce clocks support for mt8195
2021-08-31 22:57:45 -05:00
mcb
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md
libnvdimm for v5.15
2021-09-09 11:39:57 -07:00
media
Merge branch 'akpm' (patches from Andrew)
2021-09-08 12:55:35 -07:00
memory
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memstick
Driver core update for 5.15-rc1
2021-09-01 08:44:42 -07:00
message
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mfd
- Core Frameworks
2021-09-07 12:38:59 -07:00
misc
Misc driver fix for 5.15-rc1
2021-09-12 11:56:00 -07:00
mmc
Merge branch 'akpm' (patches from Andrew)
2021-09-03 10:08:28 -07:00
most
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mtd
Merge branch 'akpm' (patches from Andrew)
2021-09-08 12:55:35 -07:00
mux
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net
pci-v5.15-changes
2021-09-07 19:13:42 -07:00
nfc
nfc: st95hf: remove unused header includes
2021-08-26 09:13:36 +01:00
ntb
Bug fixes and clean-ups for Linux v5.15
2021-09-07 13:05:02 -07:00
nubus
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nvdimm
cxl for v5.15
2021-09-09 11:48:27 -07:00
nvme
nvme: add error handling support for add_disk()
2021-09-06 10:08:09 +02:00
nvmem
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of
of: property: Disable fw_devlink DT support for X86
2021-09-10 11:21:49 -05:00
opp
Merge branches 'pm-pci', 'pm-sleep', 'pm-domains' and 'powercap'
2021-08-30 19:25:42 +02:00
parisc
parisc: Move pci_dev_is_behind_card_dino to where it is used
2021-09-09 12:44:31 +02:00
parport
parisc architecture updates for kernel 5.15:
2021-09-02 13:16:00 -07:00
pci
More ACPI updates for 5.15-rc1
2021-09-08 16:33:21 -07:00
pcmcia
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perf
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phy
Merge branch 'akpm' (patches from Andrew)
2021-09-08 12:55:35 -07:00
pinctrl
Kbuild updates for v5.15
2021-09-03 15:33:47 -07:00
platform
chrome platform changes for 5.15
2021-09-08 16:43:46 -07:00
pnp
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power
power supply and reset changes for the v5.15 series
2021-08-30 11:47:32 -07:00
powercap
powercap: Add Power Limit4 support for Alder Lake SoC
2021-08-25 20:12:16 +02:00
pps
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ps3
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ptp
ptp: ocp: Simplify Kconfig.
2021-08-26 12:06:42 +01:00
pwm
pwm: mtk-disp: Implement atomic API .get_state()
2021-09-02 22:27:46 +02:00
rapidio
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ras
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regulator
Merge remote-tracking branch 'regulator/for-5.14' into regulator-linus
2021-08-25 16:05:24 +01:00
remoteproc
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reset
ARM: SoC drivers for 5.15
2021-09-01 15:25:28 -07:00
rpmsg
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rtc
rtc: rx8010: select REGMAP_I2C
2021-09-09 10:18:40 +02:00
s390
2nd batch of s390 updates for 5.15 merge window
2021-09-09 12:55:12 -07:00
sbus
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scsi
scsi: efct: Decrease area under spinlock
2021-09-22 00:04:56 -04:00
sh
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siox
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slimbus
Driver core update for 5.15-rc1
2021-09-01 08:44:42 -07:00
soc
ARM: SoC drivers for 5.15
2021-09-01 15:25:28 -07:00
soundwire
sound updates for 5.15-rc1
2021-09-01 10:29:29 -07:00
spi
ARM: SoC drivers for 5.15
2021-09-01 15:25:28 -07:00
spmi
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ssb
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staging
Kbuild updates for v5.15
2021-09-03 15:33:47 -07:00
target
scsi: target: Remove unused function arguments
2021-09-14 23:41:24 -04:00
tc
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tee
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thermal
- Add the tegra3 thermal sensor and fix the compilation testing on
2021-09-11 09:20:57 -07:00
thunderbolt
thunderbolt: test: split up test cases in tb_test_credit_alloc_all
2021-09-06 12:27:03 -07:00
tty
parisc architecture updates for kernel 5.15:
2021-09-02 13:16:00 -07:00
uio
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usb
More USB changes for 5.15-rc1
2021-09-05 11:19:15 -07:00
vdpa
virtio,vdpa,vhost: features, fixes
2021-09-11 14:48:42 -07:00
vfio
VFIO update for v5.15-rc1
2021-09-02 13:41:33 -07:00
vhost
virtio,vdpa,vhost: features, fixes
2021-09-11 14:48:42 -07:00
video
drm fixes for 5.15-rc1
2021-09-10 11:22:23 -07:00
virt
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virtio
virtio,vdpa,vhost: features, fixes
2021-09-11 14:48:42 -07:00
visorbus
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vlynq
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vme
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w1
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watchdog
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xen
Kbuild updates for v5.15
2021-09-03 15:33:47 -07:00
zorro
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Kconfig
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Makefile
…