iv/linux
1
0
Fork 0
Code Issues Pull Requests Actions Packages Projects Releases Wiki Activity
linux/drivers
History
Uros Bizjak 70ec04f348 zram: use try_cmpxchg in update_used_max 
Use try_cmpxchg instead of cmpxchg (*ptr, old, new) == old in
update_used_max.  x86 CMPXCHG instruction returns success in ZF flag, so
this change saves a compare after cmpxchg (and related move instruction in
front of cmpxchg).

Also, reorder code a bit to remove additional compare and conditional jump
from the assembly code.  Together, hese two changes save 15 bytes from the
function when compiled for x86_64.

No functional change intended.

Link: https://lkml.kernel.org/r/20221018145154.3699-1-ubizjak@gmail.com
Signed-off-by: Uros Bizjak <ubizjak@gmail.com>
Reviewed-by: Sergey Senozhatsky <senozhatsky@chromium.org>
Cc: Minchan Kim <minchan@kernel.org>
Cc: Nitin Gupta <ngupta@vflare.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
2022-11-08 17:37:13 -08:00
..
accessibility
…
acpi
cxl fixes for 6.1-rc4
2022-11-06 13:09:52 -08:00
amba
…
android
Scheduler changes for v6.1:
2022-10-10 09:10:28 -07:00
ata
ata: palmld: fix return value check in palmld_pata_probe()
2022-10-31 20:28:05 +09:00
atm
…
auxdisplay
…
base
ACPI and device properties fixes for 6.1-rc3
2022-10-28 16:48:29 -07:00
bcma
Interrupt subsystem updates:
2022-10-12 10:23:24 -07:00
block
zram: use try_cmpxchg in update_used_max
2022-11-08 17:37:13 -08:00
bluetooth
Bluetooth: virtio_bt: Use skb_put to set length
2022-11-02 14:15:42 -07:00
bus
Char/Misc and other driver changes for 6.1-rc1
2022-10-08 08:56:37 -07:00
cdrom
…
char
random: use arch_get_random*_early() in random_init()
2022-10-29 00:24:03 +02:00
clk
clk: qcom: Update the force mem core bit for GPU clocks
2022-10-27 17:23:29 -07:00
clocksource
A boring time, timekeeping, timers update:
2022-10-10 10:16:00 -07:00
comedi
…
connector
…
counter
counter: 104-quad-8: Fix race getting function mode and direction
2022-10-23 20:39:26 -04:00
cpufreq
cpufreq: intel_pstate: hybrid: Use known scaling factor for P-cores
2022-10-25 15:09:23 +02:00
cpuidle
RISC-V Patches for the 6.1 Merge Window, Part 1
2022-10-09 13:24:01 -07:00
crypto
This update includes the following changes:
2022-10-10 13:04:25 -07:00
cxl
cxl/region: Recycle region ids
2022-11-04 16:03:43 -07:00
dax
libnvdimm for 6.1
2022-10-14 18:41:41 -07:00
dca
…
devfreq
PM / devfreq: rockchip-dfi: Fix an error message
2022-09-26 03:59:43 +09:00
dio
…
dma
treewide: use get_random_bytes() when possible
2022-10-11 17:42:58 -06:00
dma-buf
whack-a-mole: cropped up open-coded file_inode() uses...
2022-10-06 17:22:11 -07:00
edac
Merge patch series "Use composable cache instead of L2 cache"
2022-10-13 11:07:13 -07:00
eisa
…
extcon
Char/Misc and other driver changes for 6.1-rc1
2022-10-08 08:56:37 -07:00
firewire
…
firmware
Second batch of EFI fixes for v6.1
2022-11-04 14:37:25 -07:00
fpga
Char/Misc and other driver changes for 6.1-rc1
2022-10-08 08:56:37 -07:00
fsi
fsi: core: Check error number after calling ida_simple_get
2022-09-28 21:10:57 +09:30
gnss
…
gpio
gpio: tegra: Convert to immutable irq chip
2022-10-20 13:47:54 +02:00
gpu
Merge tag 'drm-intel-fixes-2022-11-03' of git://anongit.freedesktop.org/drm/drm-intel into drm-fixes
2022-11-04 09:30:18 +10:00
greybus
…
hid
for-linus-2022102101
2022-10-21 17:41:57 -07:00
hsi
…
hte
…
hv
hyperv-next for 6.1
2022-10-10 13:59:01 -07:00
hwmon
Revert "hwmon: (pmbus) Add regulator supply into macro"
2022-11-04 16:47:01 -07:00
hwspinlock
…
hwtracing
coresight: cti: Fix hang in cti_disable_hw()
2022-10-25 19:08:07 +02:00
i2c
i2c: i801: add lis3lv02d's I2C address for Vostro 5568
2022-11-01 13:46:30 +01:00
i3c
i3c: master: Remove the wrong place of reattach.
2022-10-12 23:45:29 +02:00
idle
…
iio
iio: bmc150-accel-core: Fix unsafe buffer attributes
2022-10-17 08:51:26 +01:00
infiniband
RDMA/qedr: clean up work queue on failure in qedr_alloc_resources()
2022-10-28 12:59:40 -03:00
input
Input updates for 6.1 merge window:
2022-10-11 10:53:25 -07:00
interconnect
…
iommu
iommu/vt-d: Clean up si_domain in the init_dmars() error path
2022-10-21 10:49:35 +02:00
ipack
Char/Misc and other driver changes for 6.1-rc1
2022-10-08 08:56:37 -07:00
irqchip
Interrupt subsystem updates:
2022-10-12 10:23:24 -07:00
isdn
isdn: mISDN: netjet: fix wrong check of device registration
2022-11-02 12:34:48 +00:00
leds
leds: simatic-ipc-leds-gpio: fix incorrect LED to GPIO mapping
2022-10-24 11:32:10 +02:00
macintosh
powerpc updates for 6.1
2022-10-09 14:05:15 -07:00
mailbox
mailbox: qcom-ipcc: flag IRQ NO_THREAD
2022-10-05 21:51:58 -05:00
mcb
…
md
dm clone: Fix typo in block_device format specifier
2022-10-18 17:17:48 -04:00
media
media: vivid: set num_in/outputs to 0 if not supported
2022-10-25 16:43:34 +01:00
memory
…
memstick
…
message
…
mfd
Revert "mfd: syscon: Remove repetition of the regmap_get_val_endian()"
2022-10-23 12:04:56 -07:00
misc
misc: sgi-gru: use explicitly signed char
2022-10-25 19:12:10 +02:00
mmc
mmc: sdhci_am654: 'select', not 'depends' REGMAP_MMIO
2022-10-26 11:48:03 +02:00
most
…
mtd
mtd: parsers: bcm47xxpart: Fix halfblock reads
2022-10-18 11:20:12 +02:00
mux
…
net
stmmac: dwmac-loongson: fix invalid mdio_node
2022-11-02 20:30:51 -07:00
nfc
nfc: nfcmrvl: Fix potential memory leak in nfcmrvl_i2c_nci_send()
2022-10-30 21:43:26 +00:00
ntb
…
nubus
…
nvdimm
libnvdimm for 6.1
2022-10-14 18:41:41 -07:00
nvme
block-6.1-2022-10-28
2022-10-29 18:06:52 -07:00
nvmem
nvmem: u-boot-env: fix crc32 casting type
2022-09-24 14:56:37 +02:00
of
Devicetree updates for v6.1:
2022-10-10 13:13:51 -07:00
opp
…
parisc
parisc: Export iosapic_serial_irq() symbol for serial port driver
2022-10-27 09:12:05 +02:00
parport
…
pci
Revert "PCI: tegra: Use PCI_CONF1_EXT_ADDRESS() macro"
2022-10-17 12:11:09 -05:00
pcmcia
pcmcia: remove AT91RM9200 Compact Flash driver
2022-09-27 08:12:16 +02:00
peci
…
perf
arm64 fixes:
2022-10-14 12:38:03 -07:00
phy
pci-v6.1-changes
2022-10-11 11:08:18 -07:00
pinctrl
pinctrl: ocelot: Fix incorrect trigger of the interrupt.
2022-10-18 10:42:10 +02:00
platform
LoongArch fixes for v6.1-rc3
2022-10-30 09:44:06 -07:00
pnp
Merge branches 'acpi-apei', 'acpi-wakeup', 'acpi-reboot' and 'acpi-thermal'
2022-10-10 18:11:11 +02:00
power
power supply and reset changes for the v6.1 series
2022-10-07 11:48:30 -07:00
powercap
Scheduler changes for v6.1:
2022-10-10 09:10:28 -07:00
pps
…
ps3
…
ptp
] ptp: ocp: remove symlink for second GNSS
2022-10-10 08:37:24 +01:00
pwm
pwm: Changes for v6.1-rc1
2022-10-07 11:32:10 -07:00
rapidio
…
ras
…
regulator
- Core Frameworks
2022-10-07 11:24:20 -07:00
remoteproc
remoteproc: virtio: Fix warning on bindings by removing the of_match_table
2022-10-05 09:20:44 -06:00
reset
Here's the main clk pull request for this merge window. We have some
2022-10-08 10:06:48 -07:00
rpmsg
…
rtc
rtc: cmos: fix build on non-ACPI platforms
2022-10-18 22:36:54 +02:00
s390
s390/vfio-ap: Fix memory allocation for mdev_types array
2022-10-26 14:47:31 +02:00
sbus
…
scsi
SCSI fixes on 20221028
2022-10-29 18:12:45 -07:00
sh
…
siox
…
slimbus
slimbus: qcom-ngd: Add error handling in of_qcom_slim_ngd_register
2022-09-24 14:53:06 +02:00
soc
soc: imx: imx93-pd: Fix the error handling path of imx93_pd_probe()
2022-10-29 16:26:32 +08:00
soundwire
soundwire updates for 6.1-rc1
2022-10-07 16:13:55 -07:00
spi
spi: Fixes for v6.1
2022-10-26 17:38:46 -07:00
spmi
spmi: pmic-arb: increase SPMI transaction timeout delay
2022-09-30 14:33:23 +02:00
ssb
…
staging
media fixes for v6.1-rc2
2022-10-22 15:30:15 -07:00
target
Merge branch '6.1/scsi-queue' into 6.1/scsi-fixes
2022-10-21 01:10:34 +00:00
tc
…
tee
- Yu Zhao's Multi-Gen LRU patches are here. They've been under test in
2022-10-10 17:53:04 -07:00
thermal
thermal: intel_powerclamp: Use first online CPU as control_cpu
2022-10-15 19:33:57 +02:00
thunderbolt
treewide: use get_random_u32() when possible
2022-10-11 17:42:58 -06:00
tty
parisc/serial: Rename 8250_gsc.c to 8250_parisc.c
2022-10-21 08:10:46 +02:00
ufs
scsi: ufs: core: Fix typo in comment
2022-10-22 03:29:32 +00:00
uio
…
usb
fbdev fixes for kernel 6.1-rc3:
2022-10-30 11:31:14 -07:00
vdpa
virtio: fixes, features
2022-10-10 14:02:53 -07:00
vfio
VFIO updates for v6.1-rc1
2022-10-12 14:46:48 -07:00
vhost
virtio: fixes, features
2022-10-10 14:02:53 -07:00
video
fbdev fixes for kernel 6.1-rc3:
2022-10-30 11:31:14 -07:00
virt
Char/Misc and other driver changes for 6.1-rc1
2022-10-08 08:56:37 -07:00
virtio
virtio_pci: use irq to detect interrupt support
2022-10-13 09:33:03 -04:00
vlynq
…
w1
Char/Misc and other driver changes for 6.1-rc1
2022-10-08 08:56:37 -07:00
watchdog
linux-watchdog 6.1-rc4 tag
2022-11-01 12:21:53 -07:00
xen
xen: branch for v6.1-rc2
2022-10-21 14:43:09 -07:00
zorro
…
Kconfig
…
Makefile
…