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linux/drivers
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Uros Bizjak b95a40122a iommufd: Use atomic_long_try_cmpxchg() in incr_user_locked_vm() 
Use atomic_long_try_cmpxchg() instead of
atomic_long_cmpxchg (*ptr, old, new) != old in incr_user_locked_vm().
cmpxchg returns success in ZF flag, so this change saves a compare
after cmpxchg (and related move instruction in front of cmpxchg).

Also, atomic_long_try_cmpxchg() implicitly assigns old *ptr
value to "old" when cmpxchg fails. There is no need to re-read
the value in the loop.

Signed-off-by: Uros Bizjak <ubizjak@gmail.com>
Cc: Jason Gunthorpe <jgg@ziepe.ca>
Cc: Kevin Tian <kevin.tian@intel.com>
Cc: Joerg Roedel <joro@8bytes.org>
Cc: Will Deacon <will@kernel.org>
Cc: Robin Murphy <robin.murphy@arm.com>
Reviewed-by: Jason Gunthorpe <jgg@nvidia.com>
Link: https://lore.kernel.org/r/20240522082729.971123-3-ubizjak@gmail.com
Signed-off-by: Joerg Roedel <jroedel@suse.de>
2024-06-25 14:21:10 +02:00
..
accel The usual shower of singleton fixes and minor series all over MM, 2024-05-19 09:21:03 -07:00
accessibility Char/Misc bugfix for 6.10-rc1 2024-05-24 08:43:25 -07:00
acpi Merge branches 'acpi-ec', 'acpi-apei' and 'pnp' 2024-06-05 16:58:09 +02:00
amba
android binder: fix max_thread type inconsistency 2024-05-04 18:59:47 +02:00
ata ata: pata_macio: Fix max_segment_size with PAGE_SIZE == 64K 2024-06-06 14:53:34 +02:00
atm atm/fore200e: Delete unused 'fore200e_boards' 2024-05-06 18:26:47 -07:00
auxdisplay - Fix-ups 2024-05-22 10:45:12 -07:00
base regmap-i2c: Subtract reg size from max_write 2024-05-27 01:30:33 +01:00
bcma
block null_blk: fix validation of block size 2024-06-05 12:12:54 -06:00
bluetooth virtio: features, fixes, cleanups 2024-05-23 12:04:36 -07:00
bus tracing/treewide: Remove second parameter of __assign_str() 2024-05-22 20:14:47 -04:00
cache
cdrom cdrom: rearrange last_media_change check to avoid unintentional overflow 2024-05-15 12:59:55 -06:00
cdx
char tpm: Switch to new Intel CPU model defines 2024-06-05 04:55:04 +03:00
clk clk: sifive: Do not register clkdevs for PRCI clocks 2024-05-29 12:31:02 -07:00
clocksource RISC-V Patches for the 6.10 Merge Window, Part 1 2024-05-22 09:56:00 -07:00
comedi
connector
counter
cpufreq cpufreq: intel_pstate: Fix unchecked HWP MSR access 2024-06-03 18:00:23 +02:00
cpuidle pmdomain core: 2024-05-16 08:50:32 -07:00
crypto virtio: features, fixes, cleanups 2024-05-23 12:04:36 -07:00
cxl cxl/region: Fix memregion leaks in devm_cxl_add_region() 2024-05-28 16:09:17 -07:00
dax The usual shower of singleton fixes and minor series all over MM, 2024-05-19 09:21:03 -07:00
dca
devfreq PM / devfreq: exynos: Use DEFINE_SIMPLE_DEV_PM_OPS for PM functions 2024-05-09 00:30:37 +09:00
dio
dma dmaengine updates for v6.10 2024-05-21 11:15:56 -07:00
dma-buf Merge remote-tracking branch 'drm/drm-fixes' into drm-misc-fixes 2024-05-28 22:21:34 +02:00
dpll dpll: fix return value check for kmemdup 2024-05-13 16:53:53 -07:00
edac EDAC/igen6: Convert PCIBIOS_* return codes to errnos 2024-06-04 11:29:52 +02:00
eisa alpha: remove DECpc AXP150 (Jensen) support 2024-05-03 22:09:50 +02:00
extcon extcon: adc-jack: Document missing struct members 2024-05-09 01:03:39 +09:00
firewire firewire: add missing MODULE_DESCRIPTION() to test modules 2024-05-27 07:34:58 +09:00
firmware EFI fixes for v6.10 #2 2024-06-06 09:39:36 -07:00
fpga Char/Misc and other driver subsystem changes for 6.10-rc1 2024-05-22 12:26:46 -07:00
fsi
gnss
gpio gpio: add missing MODULE_DESCRIPTION() macros 2024-06-07 10:05:21 +02:00
gpu Merge tag 'drm-misc-next-fixes-2024-06-07' of https://gitlab.freedesktop.org/drm/misc/kernel into drm-fixes 2024-06-07 08:40:58 +10:00
greybus greybus: Fix use-after-free bug in gb_interface_release due to race condition. 2024-05-04 18:59:41 +02:00
hid for-linus-2024060801 2024-06-08 10:48:11 -07:00
hsi
hte
hv Char/Misc and other driver subsystem changes for 6.10-rc1 2024-05-22 12:26:46 -07:00
hwmon hwmon: (shtc1) Fix property misspelling 2024-05-30 09:05:19 -07:00
hwspinlock
hwtracing Char/Misc and other driver subsystem changes for 6.10-rc1 2024-05-22 12:26:46 -07:00
i2c i2c: synquacer: Remove a clk reference from struct synquacer_i2c 2024-05-23 13:38:15 +02:00
i3c i3c: dw: Add hot-join support. 2024-05-23 00:29:19 +02:00
idle
iio Char/Misc and other driver subsystem changes for 6.10-rc1 2024-05-22 12:26:46 -07:00
infiniband tracing/treewide: Remove second parameter of __assign_str() 2024-05-22 20:14:47 -04:00
input Input: silead - Always support 10 fingers 2024-06-03 11:10:08 +02:00
interconnect tracing/treewide: Remove second parameter of __assign_str() 2024-05-22 20:14:47 -04:00
iommu iommufd: Use atomic_long_try_cmpxchg() in incr_user_locked_vm() 2024-06-25 14:21:10 +02:00
ipack
irqchip irqchip/gic-v3-its: Fix potential race condition in its_vlpi_prop_update() 2024-06-03 18:20:00 +02:00
isdn
leds leds: mt6370: Remove unused field 'reg_cfgs' from 'struct mt6370_priv' 2024-05-02 18:12:27 +01:00
macintosh powerpc updates for 6.10 2024-05-17 09:05:46 -07:00
mailbox mailbox: zynqmp-ipi: drop irq_to_desc() call 2024-05-31 12:39:15 -05:00
mcb
md bcache: code cleanup in __bch_bucket_alloc_set() 2024-05-28 06:55:59 -06:00
media media: intel/ipu6: add csi2 port sanity check in notifier bound 2024-05-30 16:34:59 +02:00
memory ARM development updates for v6.10-rc1 2024-05-17 08:53:47 -07:00
memstick
message SCSI misc on 20240514 2024-05-14 18:25:53 -07:00
mfd pci-v6.10-changes 2024-05-21 10:09:28 -07:00
misc tracing: Remove second argument of __assign_str() 2024-05-23 12:28:01 -07:00
mmc MMC core: 2024-05-16 08:56:49 -07:00
most
mtd bd_inode series 2024-05-21 09:51:42 -07:00
mux
net net: wwan: iosm: Fix tainted pointer delete is case of region creation fail 2024-06-06 10:15:14 +02:00
nfc nfc/nci: Add the inconsistency check between the input data length and count 2024-05-29 13:08:31 +01:00
ntb
nubus
nvdimm virtio: features, fixes, cleanups 2024-05-23 12:04:36 -07:00
nvme nvme: fix nvme_pr_* status code parsing 2024-05-31 13:50:59 -07:00
nvmem nvmem: meson-mx-efuse: Remove nvmem_device from efuse struct 2024-05-03 07:26:39 +02:00
of of: property: Fix fw_devlink handling of interrupt-map 2024-05-30 19:43:47 -05:00
opp OPP Updates for 6.10 2024-05-17 13:01:24 +02:00
parisc
parport
pci PCI: Revert the cfg_access_lock lockdep mechanism 2024-06-04 12:10:05 -05:00
pcmcia
peci
perf arm64 fixes for -rc1 2024-05-23 12:09:22 -07:00
phy phy-for-6.10 2024-05-21 11:19:18 -07:00
pinctrl - New Device Support 2024-05-22 10:41:14 -07:00
platform platform/x86/amd/hsmp: Check HSMP support on AMD family of processors 2024-06-03 11:57:28 +02:00
pmdomain pmdomain providers: 2024-05-27 08:18:31 -07:00
pnp PNP: Hide pnp_bus_type from the non-PNP code 2024-05-28 21:53:51 +02:00
power I2C core removes an argument from the i2c_mux_add_adapter() call to 2024-05-20 08:55:18 -07:00
powercap
pps
ps3
ptp ptp: Fix error message on failed pin verification 2024-06-05 16:01:16 -07:00
pwm pwm: pca9685: Drop explicit initialization of struct i2c_device_id::driver_data to 0 2024-05-10 07:30:27 +02:00
rapidio rapidio: remove choice for enumeration 2024-05-14 23:36:19 +09:00
ras
regulator regulator: rtq2208: Fix invalid memory access when devm_of_regulator_put_matches is called 2024-05-28 13:22:54 +01:00
remoteproc remoteproc: k3-r5: Jump to error handling labels in start/stop errors 2024-05-06 13:34:12 -06:00
reset I'm actually surprised this time. There aren't any new Qualcomm SoC clk 2024-05-18 12:48:37 -07:00
rpmsg virtio: features, fixes, cleanups 2024-05-23 12:04:36 -07:00
rtc pcf8563: add wakeup-source support 2024-05-07 23:40:46 +02:00
s390 more s390 updates for 6.10 merge window 2024-05-21 12:09:36 -07:00
sbus
scsi SCSI fixes on 20240606 2024-06-06 14:40:51 -07:00
sh
siox
slimbus Linux 6.9-rc7 2024-05-08 19:21:51 +01:00
soc tracing/treewide: Remove second parameter of __assign_str() 2024-05-22 20:14:47 -04:00
soundwire soundwire updates for 6.10 2024-05-21 11:23:36 -07:00
spi spi: stm32: Don't warn about spurious interrupts 2024-05-29 19:12:09 +01:00
spmi spmi: pmic-arb: Add multi bus support 2024-05-08 19:46:11 +01:00
ssb
staging Staging driver changes for 6.10-rc1 2024-05-22 12:11:48 -07:00
target Assorted commits that had missed the last merge window... 2024-05-21 13:11:44 -07:00
tc
tee
thermal thermal: trip: Trigger trip down notifications when trips involved in mitigation become invalid 2024-05-27 13:00:00 +02:00
thunderbolt thunderbolt: Changes for v6.10 merge window 2024-05-10 10:25:22 +01:00
tty TTY/Serial fixes for 6.10-rc1 2024-05-24 08:38:28 -07:00
ufs scsi: ufs: mcq: Fix error output and clean up ufshcd_mcq_abort() 2024-05-30 20:40:48 -04:00
uio
usb tracing/treewide: Remove second parameter of __assign_str() 2024-05-22 20:14:47 -04:00
vdpa Merge tag 'stable/vduse-virtio-net' into vhost 2024-05-22 08:32:48 -04:00
vfio VFIO updates for v6.10-rc1 2024-05-20 14:56:50 -07:00
vhost virtio: features, fixes, cleanups 2024-05-23 12:04:36 -07:00
video - Fix-ups 2024-05-22 10:45:12 -07:00
virt The usual shower of singleton fixes and minor series all over MM, 2024-05-19 09:21:03 -07:00
virtio virtio: features, fixes, cleanups 2024-05-23 12:04:36 -07:00
w1
watchdog watchdog: LENOVO_SE10_WDT should depend on X86 && DMI 2024-05-11 11:32:06 +02:00
xen xen: branch for v6.10-rc1 2024-05-24 10:24:49 -07:00
zorro
Kconfig
Makefile kbuild: use $(src) instead of $(srctree)/$(src) for source directory 2024-05-10 04:34:52 +09:00