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linux/drivers
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Mike Rapoport (Microsoft) a2b94afeb5 s390/zcrypt: Replace get_zeroed_page() with kzalloc() 
zcrypt_rng_device_add() allocates a buffer for the software random
number generator data cache.

This buffer can be allocated with kmalloc() as there's nothing special
about it to go directly to the page allocator.

kmalloc() provides a better API that does not require ugly casts and
kfree() does not need to know the size of the freed object.

Performance difference between kmalloc() and __get_free_pages() is not
measurable as both allocators take an object/page from a per-CPU list for
fast path allocations.

For the slow path the performance is anyway determined by the amount of
reclaim involved rather than by what allocator is used.

Replace use of get_zeroed_page() with kzalloc() and free_page() with
kfree().

Link: https://lore.kernel.org/all/635405e4-9423-4a25-a6e7-e03c8ea0bcbe@redhat.com
Reviewed-by: Harald Freudenberger <freude@linux.ibm.com>
Reviewed-by: Heiko Carstens <hca@linux.ibm.com>
Signed-off-by: Mike Rapoport (Microsoft) <rppt@kernel.org>
Signed-off-by: Alexander Gordeev <agordeev@linux.ibm.com>
History 2026-06-03 15:32:45 +02:00
..
accel drm for v7.1-rc1 2026-04-15 08:45:00 -07:00
accessibility Convert 'alloc_obj' family to use the new default GFP_KERNEL argument 2026-02-21 17:09:51 -08:00
acpi Assorted arm64, ACPI and kselftest fixes for 7.1-rc2: 2026-05-01 16:32:42 -07:00
amba Convert 'alloc_obj' family to use the new default GFP_KERNEL argument 2026-02-21 17:09:51 -08:00
android Char/Misc/IIO/and others driver updates for 7.1-rc1 2026-04-24 13:23:50 -07:00
ata ata: pata_parport: switch to dynamic root device 2026-04-27 11:38:16 +02:00
atm net: remove unused ATM protocols and legacy ATM device drivers 2026-04-23 12:21:14 -07:00
auxdisplay auxdisplay: line-display: fix NULL dereference in linedisp_release 2026-03-27 09:54:31 +01:00
base regmap: sdw-mbq: Fix spelling mistake "undeferable" -> "undeferrable" 2026-04-27 06:48:16 +09:00
bcma Convert 'alloc_obj' family to use the new default GFP_KERNEL argument 2026-02-21 17:09:51 -08:00
block block-7.1-20260424 2026-04-24 15:06:55 -07:00
bluetooth Bluetooth: hci_qca: Fix missing wakeup during SSR memdump handling 2026-04-13 09:19:42 -04:00
bus Char/Misc/IIO/and others driver updates for 7.1-rc1 2026-04-24 13:23:50 -07:00
cache cache: ax45mp: Fix device node reference leak in ax45mp_cache_init() 2026-02-06 19:54:40 +00:00
cdrom cdrom, scsi: sr: propagate read-only status to block layer via set_disk_ro() 2026-04-27 15:52:51 -06:00
cdx Convert 'alloc_obj' family to use the new default GFP_KERNEL argument 2026-02-21 17:09:51 -08:00
char s390/trng: Replace __get_free_page() with kmalloc() 2026-06-03 15:32:45 +02:00
clk One more fix for the merge window to avoid a boot hang on 2026-04-26 14:03:20 -07:00
clocksource clocksource: Rewrite watchdog code completely 2026-03-20 13:36:32 +01:00
comedi Char/Misc/IIO/and others driver updates for 7.1-rc1 2026-04-24 13:23:50 -07:00
connector Convert more 'alloc_obj' cases to default GFP_KERNEL arguments 2026-02-21 20:03:00 -08:00
counter Linux 7.0-rc7 2026-04-06 09:04:53 +02:00
cpufreq Devicetree updates for v7.1: 2026-04-17 14:09:02 -07:00
cpuidle powerpc updates for 7.1 2026-04-14 17:10:15 -07:00
crypto crypto: ccp - copy IV using skcipher ivsize 2026-04-16 17:37:03 +08:00
cxl CXL changes for v7.1 2026-04-17 15:52:58 -07:00
dax dax changes for 7.1 2026-04-21 14:12:01 -07:00
dca treewide: Replace kmalloc with kmalloc_obj for non-scalar types 2026-02-21 01:02:28 -08:00
devfreq PM / devfreq: tegra30-devfreq: add support for Tegra114 2026-04-04 03:15:39 +09:00
dibs dibs: change dibs_class to a const struct 2026-03-04 18:48:15 -08:00
dio Convert 'alloc_obj' family to use the new default GFP_KERNEL argument 2026-02-21 17:09:51 -08:00
dma dmaengine updates for v7.1 2026-04-17 10:29:01 -07:00
dma-buf drm fixes for 7.1-rc1 2026-04-24 11:44:52 -07:00
dpll dpll: export __dpll_pin_change_ntf() for use under dpll_lock 2026-04-30 11:37:39 +02:00
edac - Add new AMD MCA bank names and types to the MCA code, preceded by a clean 2026-04-14 15:32:39 -07:00
eisa Convert 'alloc_obj' family to use the new default GFP_KERNEL argument 2026-02-21 17:09:51 -08:00
extcon extcon: usbc-tusb320: Make typec-power-opmode optional 2026-03-20 11:20:43 +09:00
firewire bonding: prevent potential infinite loop in bond_header_parse() 2026-03-16 19:29:45 -07:00
firmware LoongArch changes for v7.1 2026-04-24 09:54:45 -07:00
fpga fpga: m10bmc-sec: switch show_canceled_csk() to using sysfs_emit() 2026-03-25 14:57:26 +08:00
fsi Convert 'alloc_obj' family to use the new default GFP_KERNEL argument 2026-02-21 17:09:51 -08:00
fwctl fwctl: Fix class init ordering to avoid NULL pointer dereference on device removal 2026-04-10 11:21:06 -03:00
gnss Convert 'alloc_obj' family to use the new default GFP_KERNEL argument 2026-02-21 17:09:51 -08:00
gpib Linux 7.0-rc7 2026-04-06 09:04:53 +02:00
gpio gpio fixes for v7.1-rc1 2026-04-24 11:59:46 -07:00
gpu API Fixes: 2026-05-01 12:49:29 +10:00
greybus greybus: gb-beagleplay: bound bootloader receive buffering 2026-04-02 15:55:09 +02:00
hid Input updates for v7.1-rc0 2026-04-22 18:36:40 -07:00
hsi HSI: omap_ssi_port: remove depends on ARM 2026-04-02 22:33:44 +02:00
hte hte: tegra194: Add Tegra264 GTE support 2026-04-12 23:29:31 -07:00
hv drm fixes for 7.1-rc1 2026-04-24 11:44:52 -07:00
hwmon hwmon updates for 7.1 2026-04-15 14:37:32 -07:00
hwspinlock hwspinlock: u8500: delete driver 2026-04-06 09:43:18 -05:00
hwtracing Char/Misc/IIO/and others driver updates for 7.1-rc1 2026-04-24 13:23:50 -07:00
i2c i2c-host for v7.1, part 2 2026-04-20 00:03:38 +02:00
i3c i3c: mipi-i3c-hci: fix IBI payload length calculation for final status 2026-04-12 22:06:02 +02:00
idle intel_idle: Add Panther Lake C-states table 2026-03-11 12:52:00 +01:00
iio Char/Misc/IIO/and others driver updates for 7.1-rc1 2026-04-24 13:23:50 -07:00
infiniband SCSI misc on 20260421 2026-04-21 08:22:18 -07:00
input Input updates for v7.1-rc0 2026-04-22 18:36:40 -07:00
interconnect This pull request contains the interconnect changes for the 7.1-rc1 2026-04-07 10:06:50 +02:00
iommu dma-mapping updates for Linux 7.0: 2026-04-17 11:12:42 -07:00
ipack Convert more 'alloc_obj' cases to default GFP_KERNEL arguments 2026-02-21 20:03:00 -08:00
irqchip Arm: 2026-04-17 07:18:03 -07:00
leds leds: class: Make led_remove_lookup() NULL-aware 2026-04-09 13:49:19 +01:00
macintosh Convert more 'alloc_obj' cases to default GFP_KERNEL arguments 2026-02-21 20:03:00 -08:00
mailbox mailbox: mailbox-test: make data_ready a per-instance variable 2026-04-18 13:10:14 -05:00
mcb Convert 'alloc_obj' family to use the new default GFP_KERNEL argument 2026-02-21 17:09:51 -08:00
md block-7.1-20260430 2026-05-01 11:26:15 -07:00
media rpmsg updates for v7.1 2026-04-17 14:18:55 -07:00
memory dma-mapping updates for Linux 7.0: 2026-04-17 11:12:42 -07:00
memstick Convert remaining multi-line kmalloc_obj/flex GFP_KERNEL uses 2026-02-22 08:26:33 -08:00
message Convert remaining multi-line kmalloc_obj/flex GFP_KERNEL uses 2026-02-22 08:26:33 -08:00
mfd MFD for v7.1 2026-04-20 11:31:01 -07:00
misc Char/Misc/IIO/and others driver updates for 7.1-rc1 2026-04-24 13:23:50 -07:00
mmc mmc: sdhci-msm: Fix the wrapped key handling 2026-04-10 10:29:58 +02:00
most most: usb: Use kzalloc_objs for endpoint address array 2026-04-02 17:06:09 +02:00
mtd mtd: spinand: winbond: Fix ODTR write VCR on W35NxxJW 2026-04-27 15:08:04 +02:00
mux Char/Misc/IIO/and others driver updates for 7.1-rc1 2026-04-24 13:23:50 -07:00
net sfc: fix error code in efx_devlink_info_running_versions() 2026-04-30 13:44:30 +02:00
nfc NFC: trf7970a: Ignore antenna noise when checking for RF field 2026-04-27 18:00:43 -07:00
ntb pci-v7.1-changes 2026-04-15 14:41:21 -07:00
nubus Convert 'alloc_obj' family to use the new default GFP_KERNEL argument 2026-02-21 17:09:51 -08:00
nvdimm vfs-7.1-rc1.integrity 2026-04-13 10:40:26 -07:00
nvme nvme fixes for Linux 7.1 2026-04-27 15:47:21 -06:00
nvmem Linux 7.0-rc7 2026-04-06 09:04:53 +02:00
of memblock: updates for 7.0-rc1 2026-04-18 11:29:14 -07:00
opp OPP: Move break out of scoped_guard in dev_pm_opp_xlate_required_opp() 2026-02-23 11:05:59 +05:30
parisc parisc: led: fix reference leak on failed device registration 2026-04-17 15:46:46 +02:00
parport parport: Remove completed item from to-do list 2026-04-02 17:05:56 +02:00
pci LoongArch changes for v7.1 2026-04-24 09:54:45 -07:00
pcmcia PCMCIA fixes and cleanups for v7.1 2026-04-23 11:22:16 -07:00
peci Convert 'alloc_obj' family to use the new default GFP_KERNEL argument 2026-02-21 17:09:51 -08:00
perf arm64 updates for 7.1: 2026-04-14 16:48:56 -07:00
phy phy-for-7.1 2026-04-17 10:22:08 -07:00
pinctrl Pin control changes for the v7.1 kernel cycle: 2026-04-18 16:59:09 -07:00
platform platform-drivers-x86 for v7.1-1 2026-04-20 12:02:24 -07:00
pmdomain pmdomain: qcom: rpmhpd: Add power domains for Hawi SoC 2026-04-08 12:01:37 +02:00
pnp Convert 'alloc_obj' family to use the new default GFP_KERNEL argument 2026-02-21 17:09:51 -08:00
power USB / Thunderbolt changes for 7.1-rc1 2026-04-19 08:47:40 -07:00
powercap powercap: intel_rapl: Consolidate PL4 and PMU support flags into rapl_defaults 2026-04-01 16:03:05 +02:00
pps pps: change pps_class to a const struct 2026-04-02 16:33:00 +02:00
ps3 Convert 'alloc_obj' family to use the new default GFP_KERNEL argument 2026-02-21 17:09:51 -08:00
ptp ptp: vmw: Convert to a platform driver 2026-03-17 19:06:19 -07:00
pwm pwm: Two driver fixes 2026-04-23 08:37:07 -07:00
rapidio Convert 'alloc_obj' family to use the new default GFP_KERNEL argument 2026-02-21 17:09:51 -08:00
ras Convert 'alloc_obj' family to use the new default GFP_KERNEL argument 2026-02-21 17:09:51 -08:00
regulator regulator: rpi-panel-attiny: add back GPIOLIB dependency 2026-04-30 13:12:29 +09:00
remoteproc rpmsg updates for v7.1 2026-04-17 14:18:55 -07:00
resctrl arm64 updates for 7.1 (second round): 2026-04-20 16:46:22 -07:00
reset soc: late changes for 7.1 2026-04-23 08:57:24 -07:00
rpmsg rpmsg: Constify buffer passed to send API 2026-04-06 09:37:51 -05:00
rtc RTC for 7.1 2026-04-25 16:39:03 -07:00
s390 s390/zcrypt: Replace get_zeroed_page() with kzalloc() 2026-06-03 15:32:45 +02:00
sbus Convert 'alloc_obj' family to use the new default GFP_KERNEL argument 2026-02-21 17:09:51 -08:00
scsi cdrom, scsi: sr: propagate read-only status to block layer via set_disk_ro() 2026-04-27 15:52:51 -06:00
sh Convert 'alloc_obj' family to use the new default GFP_KERNEL argument 2026-02-21 17:09:51 -08:00
siox Convert 'alloc_obj' family to use the new default GFP_KERNEL argument 2026-02-21 17:09:51 -08:00
slimbus driver core: platform: use generic driver_override infrastructure 2026-03-17 20:30:57 +01:00
soc rpmsg updates for v7.1 2026-04-17 14:18:55 -07:00
soundwire soundwire updates for 7.1 2026-04-17 10:16:53 -07:00
spi spi: cadence: Probe and unbind fixes 2026-05-01 10:14:39 +09:00
spmi Convert 'alloc_obj' family to use the new default GFP_KERNEL argument 2026-02-21 17:09:51 -08:00
ssb Convert 'alloc_obj' family to use the new default GFP_KERNEL argument 2026-02-21 17:09:51 -08:00
staging Char/Misc/IIO/and others driver updates for 7.1-rc1 2026-04-24 13:23:50 -07:00
target SCSI misc on 20260421 2026-04-21 08:22:18 -07:00
tc Convert 'alloc_obj' family to use the new default GFP_KERNEL argument 2026-02-21 17:09:51 -08:00
tee soc: drivers for 7.1 2026-04-16 20:34:34 -07:00
thermal bitmap updates for v7.1 2026-04-14 08:55:18 -07:00
thunderbolt thunderbolt: Changes for v7.1 merge window 2026-04-10 13:10:28 +02:00
tty s390/hvc_iucv: Replace get_zeroed_page() with kzalloc() 2026-06-03 15:32:45 +02:00
ufs scsi: ufs: core: Disable timestamp for Kioxia THGJFJT0E25BAIP 2026-04-08 22:27:16 -04:00
uio uio: replace deprecated mmap hook with mmap_prepare in uio_info 2026-04-05 13:53:44 -07:00
usb SCSI misc on 20260421 2026-04-21 08:22:18 -07:00
vdpa vdpa: use generic driver_override infrastructure 2026-04-04 00:47:50 +02:00
vfio vfio/cdx: Consolidate MSI configured state onto cdx_irqs 2026-04-21 12:01:22 -06:00
vhost Including fixes from Netfilter. 2026-04-23 16:50:42 -07:00
video fbdev: hgafb: Request memory region before ioremap 2026-04-22 17:02:55 +02:00
virt tsm for 7.1 2026-04-26 09:51:29 -07:00
virtio mm.git review status for linus..mm-stable 2026-04-15 12:59:16 -07:00
w1 w1: ds2490: drop redundant device reference 2026-04-03 10:55:12 +02:00
watchdog watchdog: ni903x_wdt: Convert to a platform driver 2026-04-07 21:06:59 +02:00
xen xen/privcmd: fix double free via VMA splitting 2026-04-23 15:32:59 +02:00
zorro Convert 'alloc_flex' family to use the new default GFP_KERNEL argument 2026-02-21 17:09:51 -08:00
Kconfig net: remove ISDN subsystem and Bluetooth CMTP 2026-04-23 10:24:02 -07:00
Makefile net: remove ISDN subsystem and Bluetooth CMTP 2026-04-23 10:24:02 -07:00