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Pull block layer 64-bit data integrity support from Jens Axboe:
"This adds support for 64-bit data integrity in the block layer and in
NVMe"
* tag 'for-5.18/64bit-pi-2022-03-25' of git://git.kernel.dk/linux-block:
crypto: fix crc64 testmgr digest byte order
nvme: add support for enhanced metadata
block: add pi for extended integrity
crypto: add rocksoft 64b crc guard tag framework
lib: add rocksoft model crc64
linux/kernel: introduce lower_48_bits function
asm-generic: introduce be48 unaligned accessors
nvme: allow integrity on extended metadata formats
block: support pi with extended metadata
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Pull NVMe write streams removal from Jens Axboe:
"This removes the write streams support in NVMe. No vendor ever really
shipped working support for this, and they are not interested in
supporting it.
With the NVMe support gone, we have nothing in the tree that supports
this. Remove passing around of the hints.
The only discussion point in this patchset imho is the fact that the
file specific write hint setting/getting fcntl helpers will now return
-1/EINVAL like they did before we supported write hints. No known
applications use these functions, I only know of one prototype that I
help do for RocksDB, and that's not used. That said, with a change
like this, it's always a bit controversial. Alternatively, we could
just make them return 0 and pretend it worked. It's placement based
hints after all"
* tag 'for-5.18/write-streams-2022-03-18' of git://git.kernel.dk/linux-block:
fs: remove fs.f_write_hint
fs: remove kiocb.ki_hint
block: remove the per-bio/request write hint
nvme: remove support or stream based temperature hint
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git://git.kernel.org/pub/scm/linux/kernel/git/robh/linux
Pull devicetree updates from Rob Herring:
- Add Krzysztof Kozlowski as co-maintainer for DT bindings providing
much needed help.
- DT schema validation now takes DTB files as input rather than
intermediate YAML files. This decouples the validation from the
source level syntax information. There's a bunch of schema fixes as a
result of switching to DTB based validation which exposed some errors
and incomplete schemas and examples.
- Kbuild improvements to explicitly warn users running 'make
dt_binding_check' on missing yamllint
- Expand DT_SCHEMA_FILES kbuild variable to take just a partial
filename or path instead of the full path to 1 file.
- Convert various bindings to schema format: mscc,vsc7514-switch,
multiple GNSS bindings, ahci-platform, i2c-at91, multiple UFS
bindings, cortina,gemini-sata-bridge, cortina,gemini-ethernet, Atmel
SHA, Atmel TDES, Atmel AES, armv7m-systick, Samsung Exynos display
subsystem, nuvoton,npcm7xx-timer, samsung,s3c2410-i2c, zynqmp_dma,
msm/mdp4, rda,8810pl-uart
- New schemas for u-boot environment variable partition, TI clksel
- New compatible strings for Renesas RZ/V2L SoC
- Vendor prefixes for Xen, HPE, deprecated Synopsys, deprecated
HiSilicon
- Add/fix schemas for QEMU Arm 'virt' machine
- Drop unused of_alias_get_alias_list() function
- Add a script to check DT unittest EXPECT message output. Pass
messages also now print by default at PR_INFO level to help test
automation.
* tag 'devicetree-for-5.18' of git://git.kernel.org/pub/scm/linux/kernel/git/robh/linux: (96 commits)
dt-bindings: kbuild: Make DT_SCHEMA_LINT a recursive variable
dt-bindings: nvmem: add U-Boot environment variables binding
dt-bindings: ufs: qcom: Add SM6350 compatible string
dt-bindings: dmaengine: sifive,fu540-c000: include generic schema
dt-bindings: gpio: pca95xx: drop useless consumer example
Revert "of: base: Introduce of_alias_get_alias_list() to check alias IDs"
dt-bindings: virtio,mmio: Allow setting devices 'dma-coherent'
dt-bindings: gnss: Add two more chips
dt-bindings: gnss: Rewrite sirfstar binding in YAML
dt-bindings: gnss: Modify u-blox to use common bindings
dt-bindings: gnss: Rewrite common bindings in YAML
dt-bindings: ata: ahci-platform: Add rk3568-dwc-ahci compatible
dt-bindings: ata: ahci-platform: Add power-domains property
dt-bindings: ata: ahci-platform: Convert DT bindings to yaml
dt-bindings: kbuild: Use DTB files for validation
dt-bindings: kbuild: Pass DT_SCHEMA_FILES to dt-validate
dt-bindings: Add QEMU virt machine compatible
dt-bindings: arm: Convert QEMU fw-cfg to DT schema
dt-bindings: i2c: at91: Add SAMA7G5 compatible strings list
dt-bindings: i2c: convert i2c-at91 to json-schema
...
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This reverts commit aa6f8dcbab473f3a3c7454b74caa46d36cdc5d13.
It turns out this breaks at least the ath9k wireless driver, and
possibly others.
What the ath9k driver does on packet receive is to set up the DMA
transfer with:
int ath_rx_init(..)
..
bf->bf_buf_addr = dma_map_single(sc->dev, skb->data,
common->rx_bufsize,
DMA_FROM_DEVICE);
and then the receive logic (through ath_rx_tasklet()) will fetch
incoming packets
static bool ath_edma_get_buffers(..)
..
dma_sync_single_for_cpu(sc->dev, bf->bf_buf_addr,
common->rx_bufsize, DMA_FROM_DEVICE);
ret = ath9k_hw_process_rxdesc_edma(ah, rs, skb->data);
if (ret == -EINPROGRESS) {
/*let device gain the buffer again*/
dma_sync_single_for_device(sc->dev, bf->bf_buf_addr,
common->rx_bufsize, DMA_FROM_DEVICE);
return false;
}
and it's worth noting how that first DMA sync:
dma_sync_single_for_cpu(..DMA_FROM_DEVICE);
is there to make sure the CPU can read the DMA buffer (possibly by
copying it from the bounce buffer area, or by doing some cache flush).
The iommu correctly turns that into a "copy from bounce bufer" so that
the driver can look at the state of the packets.
In the meantime, the device may continue to write to the DMA buffer, but
we at least have a snapshot of the state due to that first DMA sync.
But that _second_ DMA sync:
dma_sync_single_for_device(..DMA_FROM_DEVICE);
is telling the DMA mapping that the CPU wasn't interested in the area
because the packet wasn't there. In the case of a DMA bounce buffer,
that is a no-op.
Note how it's not a sync for the CPU (the "for_device()" part), and it's
not a sync for data written by the CPU (the "DMA_FROM_DEVICE" part).
Or rather, it _should_ be a no-op. That's what commit aa6f8dcbab47
broke: it made the code bounce the buffer unconditionally, and changed
the DMA_FROM_DEVICE to just unconditionally and illogically be
DMA_TO_DEVICE.
[ Side note: purely within the confines of the swiotlb driver it wasn't
entirely illogical: The reason it did that odd DMA_FROM_DEVICE ->
DMA_TO_DEVICE conversion thing is because inside the swiotlb driver,
it uses just a swiotlb_bounce() helper that doesn't care about the
whole distinction of who the sync is for - only which direction to
bounce.
So it took the "sync for device" to mean that the CPU must have been
the one writing, and thought it meant DMA_TO_DEVICE. ]
Also note how the commentary in that commit was wrong, probably due to
that whole confusion, claiming that the commit makes the swiotlb code
"bounce unconditionally (that is, also
when dir == DMA_TO_DEVICE) in order do avoid synchronising back stale
data from the swiotlb buffer"
which is nonsensical for two reasons:
- that "also when dir == DMA_TO_DEVICE" is nonsensical, as that was
exactly when it always did - and should do - the bounce.
- since this is a sync for the device (not for the CPU), we're clearly
fundamentally not coping back stale data from the bounce buffers at
all, because we'd be copying *to* the bounce buffers.
So that commit was just very confused. It confused the direction of the
synchronization (to the device, not the cpu) with the direction of the
DMA (from the device).
Reported-and-bisected-by: Oleksandr Natalenko <oleksandr@natalenko.name>
Reported-by: Olha Cherevyk <olha.cherevyk@gmail.com>
Cc: Halil Pasic <pasic@linux.ibm.com>
Cc: Christoph Hellwig <hch@lst.de>
Cc: Kalle Valo <kvalo@kernel.org>
Cc: Robin Murphy <robin.murphy@arm.com>
Cc: Toke Høiland-Jørgensen <toke@toke.dk>
Cc: Maxime Bizon <mbizon@freebox.fr>
Cc: Johannes Berg <johannes@sipsolutions.net>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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git://git.kernel.org/pub/scm/linux/kernel/git/jack/linux-fs
Pull fsnotify updates from Jan Kara:
"A few fsnotify improvements and cleanups"
* tag 'fsnotify_for_v5.18-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/jack/linux-fs:
fsnotify: remove redundant parameter judgment
fsnotify: optimize FS_MODIFY events with no ignored masks
fsnotify: fix merge with parent's ignored mask
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git://git.kernel.org/pub/scm/linux/kernel/git/lee/mfd
Pull MFD updates from Lee Jones:
"New Drivers:
- Add support for Maxim MAX77714 PMIC
Removed Drivers:
- Remove support for ST-Ericsson AB8500 DebugFS
New Device Support:
- Add support for Silergy SY7636A to Simple MFD I2C
- Add support for MediaTek MT6366 PMIC to MT6358 IRQ
- Add support for Charger to Intel PMIC CRC
- Add support for Raptor Lake to Intel LPSS PCI
New Functionality:
- Add support for Reboot to Rockchip RK808
Fix-ups:
- Device Tree changes (includcing YAML conversion) for
silergy,sy7636a, maxim,max77843, google,cros-ec, maxim,max14577,
maxim,max77802, maxim,max77714, qcom,tcsr, qcom,spmi-pmic,
stericsson,ab8500, stericsson,db8500-prcmu,
samsung,exynos5433-lpass, mt6397, syscon, brcm,cru
- Visible to menuconfig; simple-mfd-i2c
- Clean-up or clarify code; max77686, intel_soc_pmic_crc
- Improve error handling; mc13xxx-core, stmfx, asic3
- Pass device information to child devices; iqs62x, intel-lpss-acpi
- Individually identify IRQ domains; intel_soc_pmic_core
- Remove superfluous code; dbx500-prcmu, exynos-lpass
- Staticify and constify; arizona-i2c
- Mark sometimes used data as __maybe_unused; atmel-flexcom
- Account for different ACPI tables on AOSP/Windows platforms; arizona-spi
- Use provided (platform) APIs; ab8500-core
- Trivial (whitespace, spelling); rohm-bd9576"
* tag 'mfd-next-5.18' of git://git.kernel.org/pub/scm/linux/kernel/git/lee/mfd: (50 commits)
dt-bindings: mfd: syscon: Add microchip,lan966x-cpu-syscon compatible
mfd: bd9576: fix typos in comments
mfd: Use platform_get_irq() to get the interrupt
mfd: db8500-prcmu: Remove unused inline function
mfd: arizona-spi: Add Android board ACPI table handling
mfd: arizona-spi: Split Windows ACPI init code into its own function
mfd: asic3: Add missing iounmap() on error asic3_mfd_probe
MAINTAINERS: Rectify entry for ROHM MULTIFUNCTION BD9571MWV-M PMIC DEVICE DRIVERS
mfd: intel-lpss: Provide an SSP type to the driver
dt-bindings: mfd: brcm,cru: Rename pinctrl node
dt-bindings: Add compatibles for undocumented trivial syscons
mfd: atmel-flexcom: Fix compilation warning
dt-bindings: mfd: Add compatible for the MediaTek MT6366 PMIC
dt-bindings: mfd: samsung,exynos5433-lpass: Convert to dtschema
mfd: exynos-lpass: Drop unneeded syscon.h include
mfd: intel-lpss: Add Intel Raptor Lake PCH-S PCI IDs
mfd: ab8500: Drop debugfs module
mfd: sta2x11: Use GFP_KERNEL instead of GFP_ATOMIC
mfd: ab8500: Rewrite bindings in YAML
mfd: qcom-spmi-pmic: Add pm8953 compatible
...
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git://git.kernel.org/pub/scm/linux/kernel/git/mtd/linux
Pull MTD updates from Miquel Raynal:
"There has been a lot of activity in the MTD subsystem recently, with a
number of SPI-NOR cleanups as well as the introduction of ECC engines
that can be used by SPI controllers (hence a few SPI patches in here).
Core MTD changes:
- Replace the expert mode symbols with a single helper
- Fix misuses of of_match_ptr()
- Remove partid and partname debugfs files
- tests: Fix eraseblock read speed miscalculation for lower partition
sizes
- TRX parser: Allow to use on MediaTek MIPS SoCs
MTD driver changes:
- spear_smi: use GFP_KERNEL
- mchp48l640: Add SPI ID table
- mchp23k256: Add SPI ID table
- blkdevs: Avoid soft lockups with some mtd/spi devices
- aspeed-smc: Improve probe resilience
Hyperbus changes:
- HBMC_AM654 should depend on ARCH_K3
NAND core changes:
- ECC:
- Add infrastructure to support hardware engines
- Add a new helper to retrieve the ECC context
- Provide a helper to retrieve a pilelined engine device
NAND-ECC changes:
- Macronix ECC engine:
- Add Macronix external ECC engine support
- Support SPI pipelined mode
- Make two read-only arrays static const
- Fix compile test issue
Raw NAND core changes:
- Fix misuses of of_match_node()
- Rework of_get_nand_bus_width()
- Remove of_get_nand_on_flash_bbt() wrapper
- Protect access to rawnand devices while in suspend
- bindings: Document the wp-gpios property
Rax NAND controller driver changes:
- atmel: Fix refcount issue in atmel_nand_controller_init
- nandsim:
- Add NS_PAGE_BYTE_SHIFT macro to replace the repeat pattern
- Merge repeat codes in ns_switch_state
- Replace overflow check with kzalloc to single kcalloc
- rockchip: Fix platform_get_irq.cocci warning
- stm32_fmc2: Add NAND Write Protect support
- pl353: Set the nand chip node as the flash node
- brcmnand: Fix sparse warnings in bcma_nand
- omap_elm: Remove redundant variable 'errors'
- gpmi:
- Support fast edo timings for mx28
- Validate controller clock rate
- Fix controller timings setting
- brcmnand:
- Add BCMA shim
- BCMA controller uses command shift of 0
- Allow platform data instantation
- Add platform data structure for BCMA
- Allow working without interrupts
- Move OF operations out of brcmnand_init_cs()
- Avoid pdev in brcmnand_init_cs()
- Allow SoC to provide I/O operations
- Assign soc as early as possible
Onenand changes:
- Check for error irq
SPI-NAND core changes:
- Delay a little bit the dirmap creation
- Create direct mapping descriptors for ECC operations
SPI-NAND driver changes:
- macronix: Use random program load
SPI NOR core changes:
- Move vendor specific code out of the core into vendor drivers.
- Unify all function and object names in the vendor modules.
- Make setup() callback optional to improve readability.
- Skip erase logic when the SPI_NOR_NO_ERASE flag is set at flash
declaration.
SPI changes:
- Macronix SPI controller:
- Fix the transmit path
- Create a helper to configure the controller before an operation
- Create a helper to ease the start of an operation
- Add support for direct mapping
- Add support for pipelined ECC operations
- spi-mem:
- Introduce a capability structure
- Check the controller extra capabilities
- cadence-quadspi/mxic: Provide capability structures
- Kill the spi_mem_dtr_supports_op() helper
- Add an ecc parameter to the spi_mem_op structure
Binding changes:
- Dropped mtd/cortina,gemini-flash.txt
- Convert BCM47xx partitions to json-schema
- Vendor prefixes: Clarify Macronix prefix
- SPI NAND: Convert spi-nand description file to yaml
- Raw NAND chip: Create a NAND chip description
- Raw NAND controller:
- Harmonize the property types
- Fix a comment in the examples
- Fix the reg property description
- Describe Macronix NAND ECC engine
- Macronix SPI controller:
- Document the nand-ecc-engine property
- Convert to yaml
- The interrupt property is not mandatory"
* tag 'mtd/changes-for-5.18' of git://git.kernel.org/pub/scm/linux/kernel/git/mtd/linux: (104 commits)
mtd: nand: ecc: mxic: Fix compile test issue
mtd: nand: mxic-ecc: make two read-only arrays static const
mtd: hyperbus: HBMC_AM654 should depend on ARCH_K3
mtd: core: Remove partid and partname debugfs files
dt-bindings: mtd: partitions: convert BCM47xx to the json-schema
mtd: tests: Fix eraseblock read speed miscalculation for lower partition sizes
mtd: rawnand: atmel: fix refcount issue in atmel_nand_controller_init
mtd: rawnand: rockchip: fix platform_get_irq.cocci warning
mtd: spi-nor: Skip erase logic when SPI_NOR_NO_ERASE is set
mtd: spi-nor: renumber flags
mtd: spi-nor: slightly change code style in spi_nor_sr_ready()
mtd: spi-nor: spansion: rename vendor specific functions and defines
mtd: spi-nor: spansion: convert USE_CLSR to a manufacturer flag
mtd: spi-nor: move all spansion specifics into spansion.c
mtd: spi-nor: spansion: slightly rework control flow in late_init()
mtd: spi-nor: micron-st: rename vendor specific functions and defines
mtd: spi-nor: micron-st: convert USE_FSR to a manufacturer flag
mtd: spi-nor: move all micron-st specifics into micron-st.c
mtd: spi-nor: xilinx: correct the debug message
mtd: spi-nor: xilinx: rename vendor specific functions and defines
...
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git://git.kernel.org/pub/scm/linux/kernel/git/sre/linux-power-supply
Pull power supply and reset updates from Sebastian Reichel:
"Power-supply core:
- Introduce "Bypass" charging type used by USB PPS standard
- Refactor power_supply_set_input_current_limit_from_supplier()
- Add fwnode support to power_supply_get_battery_info()
Drivers:
- ab8500: continue migrating towards using standard core APIs
- axp288 fuel-gauge: refactor driver to be fully resource managed
- battery-samsung-sdi: new in-kernel provider for (constant) Samsung
battery info
- bq24190: disable boost regulator on shutdown
- bq24190: add support for battery-info on ACPI based systems
- bq25890: prepare driver for usage on ACPI based systems
- bq25890: add boost regulator support
- cpcap-battery: add NVMEM based battery detection support
- injoinic ip5xxx: new driver for power bank IC
- upi ug3105: new battery driver
- misc small improvements and fixes"
* tag 'for-v5.18' of git://git.kernel.org/pub/scm/linux/kernel/git/sre/linux-power-supply: (94 commits)
power: ab8500_chargalg: Use CLOCK_MONOTONIC
power: supply: Add a driver for Injoinic power bank ICs
dt-bindings: trivial-devices: Add Injoinic power bank ICs
dt-bindings: vendor-prefixes: Add Injoinic
power: supply: ab8500: Remove unused variable
power: supply: da9150-fg: Remove unnecessary print function dev_err()
power: supply: ab8500: fix a handful of spelling mistakes
power: supply: ab8500_fg: Account for line impedance
dt-bindings: power: supply: ab8500_fg: Add line impedance
power: supply: axp20x_usb_power: fix platform_get_irq.cocci warnings
power: supply: axp20x_ac_power: fix platform_get_irq.cocci warning
power: supply: wm8350-power: Add missing free in free_charger_irq
power: supply: wm8350-power: Handle error for wm8350_register_irq
power: supply: Static data for Samsung batteries
power: supply: ab8500_fg: Use VBAT-to-Ri if possible
power: supply: Support VBAT-to-Ri lookup tables
power: supply: ab8500: Standardize BTI resistance
power: supply: ab8500: Standardize alert mode charging
power: supply: ab8500: Standardize maintenance charging
power: supply: bq24190_charger: Delay applying charge_type changes when OTG 5V Vbus boost is on
...
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git://git.kernel.org/pub/scm/linux/kernel/git/helgaas/pci
Pull pci updates from Bjorn Helgaas:
"Enumeration:
- Move the VGA arbiter from drivers/gpu to drivers/pci because it's
PCI-specific, not GPU-specific (Bjorn Helgaas)
- Select the default VGA device consistently whether it's enumerated
before or after VGA arbiter init, which fixes arches that enumerate
PCI devices late (Huacai Chen)
Resource management:
- Support BAR sizes up to 8TB (Dongdong Liu)
PCIe native device hotplug:
- Fix "Command Completed" tracking to avoid spurious timouts when
powering off empty slots (Liguang Zhang)
- Quirk Qualcomm devices that don't implement Command Completed
correctly, again to avoid spurious timeouts (Manivannan Sadhasivam)
Peer-to-peer DMA:
- Add Intel 3rd Gen Intel Xeon Scalable Processors to whitelist
(Michael J. Ruhl)
APM X-Gene PCIe controller driver:
- Revert generic DT parsing changes that broke some machines in the
field (Marc Zyngier)
Freescale i.MX6 PCIe controller driver:
- Allow controller probe to succeed even when no devices currently
present to allow hot-add later (Fabio Estevam)
- Enable power management on i.MX6QP (Richard Zhu)
- Assert CLKREQ# on i.MX8MM so enumeration doesn't hang when no
device is connected (Richard Zhu)
Marvell Aardvark PCIe controller driver:
- Fix MSI and MSI-X support (Marek Behún, Pali Rohár)
- Add support for ERR and PME interrupts (Pali Rohár)
Marvell MVEBU PCIe controller driver:
- Add DT binding and support for "num-lanes" (Pali Rohár)
- Add support for INTx interrupts (Pali Rohár)
Microsoft Hyper-V host bridge driver:
- Avoid unnecessary hypercalls when unmasking IRQs on ARM64 (Boqun
Feng)
Qualcomm PCIe controller driver:
- Add SM8450 DT binding and driver support (Dmitry Baryshkov)
Renesas R-Car PCIe controller driver:
- Help the controller get to the L1 state since the hardware can't do
it on its own (Marek Vasut)
- Return PCI_ERROR_RESPONSE (~0) for reads that fail on PCIe (Marek
Vasut)
SiFive FU740 PCIe controller driver:
- Drop redundant '-gpios' from DT GPIO lookup (Ben Dooks)
- Force 2.5GT/s for initial device probe (Ben Dooks)
Socionext UniPhier Pro5 controller driver:
- Add NX1 DT binding and driver support (Kunihiko Hayashi)
Synopsys DesignWare PCIe controller driver:
- Restore MSI configuration so MSI works after resume (Jisheng
Zhang)"
* tag 'pci-v5.18-changes' of git://git.kernel.org/pub/scm/linux/kernel/git/helgaas/pci: (94 commits)
x86/PCI: Add #includes to asm/pci_x86.h
PCI: ibmphp: Remove unused assignments
PCI: cpqphp: Remove unused assignments
PCI: fu740: Remove unused assignments
PCI: kirin: Remove unused assignments
PCI: Remove unused assignments
PCI: Declare pci_filp_private only when HAVE_PCI_MMAP
PCI: Avoid broken MSI on SB600 USB devices
PCI: fu740: Force 2.5GT/s for initial device probe
PCI: xgene: Revert "PCI: xgene: Fix IB window setup"
PCI: xgene: Revert "PCI: xgene: Use inbound resources for setup"
PCI: imx6: Assert i.MX8MM CLKREQ# even if no device present
PCI: imx6: Invoke the PHY exit function after PHY power off
PCI: rcar: Use PCI_SET_ERROR_RESPONSE after read which triggered an exception
PCI: rcar: Finish transition to L1 state in rcar_pcie_config_access()
PCI: dwc: Restore MSI Receiver mask during resume
PCI: fu740: Drop redundant '-gpios' from DT GPIO lookup
PCI/VGA: Replace full MIT license text with SPDX identifier
PCI/VGA: Use unsigned format string to print lock counts
PCI/VGA: Log bridge control messages when adding devices
...
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git://git.kernel.org/pub/scm/linux/kernel/git/brgl/linux
Pull gpio updates from Bartosz Golaszewski:
"Relatively few updates for this release cycle. We have a single new
driver and some minor changes in drivers, more work on limiting the
usage of of_node in drivers and DT updates:
- new driver: gpio-en7523
- dt-bindings: convertion of faraday,ftgpio010 to YAML, new
compatible string in gpio-vf610 and a bugfix in an example
- gpiolib core: several improvements and some code shrink
- documentation: convert all public docs into kerneldoc format
- set IRQ bus token in gpio-crystalcove (addresses a debugfs issue)
- add a missing return value check for kstrdup() in gpio-merrifield
- allow gpio-tps68470 to be built as module
- more work on limiting usage of of_node in GPIO drivers
- several sysfs interface improvements
- use SDPX in gpio-ts4900"
* tag 'gpio-updates-for-v5.18' of git://git.kernel.org/pub/scm/linux/kernel/git/brgl/linux:
gpio: ts4900: Use SPDX header
gpiolib: Use list_first_entry()/list_last_entry()
gpiolib: sysfs: Simplify edge handling in the code
gpiolib: sysfs: Move kstrtox() calls outside of the mutex lock
gpiolib: sysfs: Move sysfs_emit() calls outside of the mutex lock
gpiolib: make struct comments into real kernel docs
dt-bindings: gpio: convert faraday,ftgpio01 to yaml
dt-bindings: gpio: gpio-vf610: Add imx93 compatible string
gpiolib: Simplify error path in gpiod_get_index() when requesting GPIO
gpiolib: Use short form of ternary operator in gpiod_get_index()
gpiolib: Introduce for_each_gpio_desc_with_flag() macro
gpio: Add support for Airoha EN7523 GPIO controller
dt-bindings: arm: airoha: Add binding for Airoha GPIO controller
dt-bindings: gpio: fix gpio-hog example
gpio: tps68470: Allow building as module
gpio: tegra: Get rid of duplicate of_node assignment
gpio: altera-a10sr: Switch to use fwnode instead of of_node
gpio: merrifield: check the return value of devm_kstrdup()
gpio: crystalcove: Set IRQ domain bus token to DOMAIN_BUS_WIRED
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git://git.kernel.org/pub/scm/linux/kernel/git/hid/hid
Pull HID updates from Jiri Kosina:
- rework of generic input handling which ultimately makes the
processing of tablet events more generic and reliable (Benjamin
Tissoires)
- fixes for handling unnumbered reports fully correctly in i2c-hid
(Angela Czubak, Dmitry Torokhov)
- untangling of intermingled code for sending and handling output
reports in i2c-hid (Dmitry Torokhov)
- Apple magic keyboard support improvements for newer models (José
Expósito)
- Apple T2 Macs support improvements (Aun-Ali Zaidi, Paul Pawlowski)
- driver for Razer Blackwidow keyboards (Jelle van der Waa)
- driver for SiGma Micro keyboards (Desmond Lim)
- integration of first part of DIGImend patches in order to ultimately
vastly improve Linux support of tablets (Nikolai Kondrashov, José
Expósito)
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/hid/hid: (55 commits)
HID: intel-ish-hid: Use dma_alloc_coherent for firmware update
Input: docs: add more details on the use of BTN_TOOL
HID: input: accommodate priorities for slotted devices
HID: input: remove the need for HID_QUIRK_INVERT
HID: input: enforce Invert usage to be processed before InRange
HID: core: for input reports, process the usages by priority list
HID: compute an ordered list of input fields to process
HID: input: move up out-of-range processing of input values
HID: input: rework spaghetti code with switch statements
HID: input: tag touchscreens as such if the physical is not there
HID: core: split data fetching from processing in hid_input_field()
HID: core: de-duplicate some code in hid_input_field()
HID: core: statically allocate read buffers
HID: uclogic: Support multiple frame input devices
HID: uclogic: Define report IDs before their descriptors
HID: uclogic: Put version first in rdesc namespace
HID: uclogic: Use "frame" instead of "buttonpad"
HID: uclogic: Use different constants for frame report IDs
HID: uclogic: Specify total report size to buttonpad macro
HID: uclogic: Switch to matching subreport bytes
...
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git://git.kernel.org/pub/scm/linux/kernel/git/pdx86/platform-drivers-x86
Pull x86 platform driver updates from Hans de Goede:
"New drivers:
- AMD Host System Management Port (HSMP)
- Intel Software Defined Silicon
Removed drivers (functionality folded into other drivers):
- intel_cht_int33fe_microb
- surface3_button
amd-pmc:
- s2idle bug-fixes
- Support for AMD Spill to DRAM STB feature
hp-wmi:
- Fix SW_TABLET_MODE detection method (and other fixes)
- Support omen thermal profile policy v1
serial-multi-instantiate:
- Add SPI device support
- Add support for CS35L41 amplifiers used in new laptops
think-lmi:
- syfs-class-firmware-attributes Certificate authentication support
thinkpad_acpi:
- Fixes + quirks
- Add platform_profile support on AMD based ThinkPads
x86-android-tablets:
- Improve Asus ME176C / TF103C support
- Support Nextbook Ares 8, Lenovo Tab 2 830 and 1050 tablets
Lots of various other small fixes and hardware-id additions"
* tag 'platform-drivers-x86-v5.18-1' of git://git.kernel.org/pub/scm/linux/kernel/git/pdx86/platform-drivers-x86: (60 commits)
platform/x86: think-lmi: Certificate authentication support
Documentation: syfs-class-firmware-attributes: Lenovo Certificate support
platform/x86: amd-pmc: Only report STB errors when STB enabled
platform/x86: amd-pmc: Drop CPU QoS workaround
platform/x86: amd-pmc: Output error codes in messages
platform/x86: amd-pmc: Move to later in the suspend process
ACPI / x86: Add support for LPS0 callback handler
platform/x86: thinkpad_acpi: consistently check fan_get_status return.
platform/x86: hp-wmi: support omen thermal profile policy v1
platform/x86: hp-wmi: Changing bios_args.data to be dynamically allocated
platform/x86: hp-wmi: Fix 0x05 error code reported by several WMI calls
platform/x86: hp-wmi: Fix SW_TABLET_MODE detection method
platform/x86: hp-wmi: Fix hp_wmi_read_int() reporting error (0x05)
platform/x86: amd-pmc: Validate entry into the deepest state on resume
platform/x86: thinkpad_acpi: Don't use test_bit on an integer
platform/x86: thinkpad_acpi: Fix compiler warning about uninitialized err variable
platform/x86: thinkpad_acpi: clean up dytc profile convert
platform/x86: x86-android-tablets: Depend on EFI and SPI
platform/x86: amd-pmc: uninitialized variable in amd_pmc_s2d_init()
platform/x86: intel-uncore-freq: fix uncore_freq_common_init() error codes
...
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Merge yet more updates from Andrew Morton:
"This is the material which was staged after willystuff in linux-next.
Subsystems affected by this patch series: mm (debug, selftests,
pagecache, thp, rmap, migration, kasan, hugetlb, pagemap, madvise),
and selftests"
* emailed patches from Andrew Morton <akpm@linux-foundation.org>: (113 commits)
selftests: kselftest framework: provide "finished" helper
mm: madvise: MADV_DONTNEED_LOCKED
mm: fix race between MADV_FREE reclaim and blkdev direct IO read
mm: generalize ARCH_HAS_FILTER_PGPROT
mm: unmap_mapping_range_tree() with i_mmap_rwsem shared
mm: warn on deleting redirtied only if accounted
mm/huge_memory: remove stale locking logic from __split_huge_pmd()
mm/huge_memory: remove stale page_trans_huge_mapcount()
mm/swapfile: remove stale reuse_swap_page()
mm/khugepaged: remove reuse_swap_page() usage
mm/huge_memory: streamline COW logic in do_huge_pmd_wp_page()
mm: streamline COW logic in do_swap_page()
mm: slightly clarify KSM logic in do_swap_page()
mm: optimize do_wp_page() for fresh pages in local LRU pagevecs
mm: optimize do_wp_page() for exclusive pages in the swapcache
mm/huge_memory: make is_transparent_hugepage() static
userfaultfd/selftests: enable hugetlb remap and remove event testing
selftests/vm: add hugetlb madvise MADV_DONTNEED MADV_REMOVE test
mm: enable MADV_DONTNEED for hugetlb mappings
kasan: disable LOCKDEP when printing reports
...
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git://git.kernel.org/pub/scm/linux/kernel/git/riscv/linux
Pull RISC-V updates from Palmer Dabbelt:
- Support for Sv57-based virtual memory.
- Various improvements for the MicroChip PolarFire SOC and the
associated Icicle dev board, which should allow upstream kernels to
boot without any additional modifications.
- An improved memmove() implementation.
- Support for the new Ssconfpmf and SBI PMU extensions, which allows
for a much more useful perf implementation on RISC-V systems.
- Support for restartable sequences.
* tag 'riscv-for-linus-5.18-mw0' of git://git.kernel.org/pub/scm/linux/kernel/git/riscv/linux: (36 commits)
rseq/selftests: Add support for RISC-V
RISC-V: Add support for restartable sequence
MAINTAINERS: Add entry for RISC-V PMU drivers
Documentation: riscv: Remove the old documentation
RISC-V: Add sscofpmf extension support
RISC-V: Add perf platform driver based on SBI PMU extension
RISC-V: Add RISC-V SBI PMU extension definitions
RISC-V: Add a simple platform driver for RISC-V legacy perf
RISC-V: Add a perf core library for pmu drivers
RISC-V: Add CSR encodings for all HPMCOUNTERS
RISC-V: Remove the current perf implementation
RISC-V: Improve /proc/cpuinfo output for ISA extensions
RISC-V: Do no continue isa string parsing without correct XLEN
RISC-V: Implement multi-letter ISA extension probing framework
RISC-V: Extract multi-letter extension names from "riscv, isa"
RISC-V: Minimal parser for "riscv, isa" strings
RISC-V: Correctly print supported extensions
riscv: Fixed misaligned memory access. Fixed pointer comparison.
MAINTAINERS: update riscv/microchip entry
riscv: dts: microchip: add new peripherals to icicle kit device tree
...
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git://git.kernel.org/pub/scm/linux/kernel/git/powerpc/linux
Pull powerpc updates from Michael Ellerman:
"Livepatch support for 32-bit is probably the standout new feature,
otherwise mostly just lots of bits and pieces all over the board.
There's a series of commits cleaning up function descriptor handling,
which touches a few other arches as well as LKDTM. It has acks from
Arnd, Kees and Helge.
Summary:
- Enforce kernel RO, and implement STRICT_MODULE_RWX for 603.
- Add support for livepatch to 32-bit.
- Implement CONFIG_DYNAMIC_FTRACE_WITH_ARGS.
- Merge vdso64 and vdso32 into a single directory.
- Fix build errors with newer binutils.
- Add support for UADDR64 relocations, which are emitted by some
toolchains. This allows powerpc to build with the latest lld.
- Fix (another) potential userspace r13 corruption in transactional
memory handling.
- Cleanups of function descriptor handling & related fixes to LKDTM.
Thanks to Abdul Haleem, Alexey Kardashevskiy, Anders Roxell, Aneesh
Kumar K.V, Anton Blanchard, Arnd Bergmann, Athira Rajeev, Bhaskar
Chowdhury, Cédric Le Goater, Chen Jingwen, Christophe JAILLET,
Christophe Leroy, Corentin Labbe, Daniel Axtens, Daniel Henrique
Barboza, David Dai, Fabiano Rosas, Ganesh Goudar, Guo Zhengkui, Hangyu
Hua, Haren Myneni, Hari Bathini, Igor Zhbanov, Jakob Koschel, Jason
Wang, Jeremy Kerr, Joachim Wiberg, Jordan Niethe, Julia Lawall, Kajol
Jain, Kees Cook, Laurent Dufour, Madhavan Srinivasan, Mamatha Inamdar,
Maxime Bizon, Maxim Kiselev, Maxim Kochetkov, Michal Suchanek,
Nageswara R Sastry, Nathan Lynch, Naveen N. Rao, Nicholas Piggin,
Nour-eddine Taleb, Paul Menzel, Ping Fang, Pratik R. Sampat, Randy
Dunlap, Ritesh Harjani, Rohan McLure, Russell Currey, Sachin Sant,
Segher Boessenkool, Shivaprasad G Bhat, Sourabh Jain, Thierry Reding,
Tobias Waldekranz, Tyrel Datwyler, Vaibhav Jain, Vladimir Oltean,
Wedson Almeida Filho, and YueHaibing"
* tag 'powerpc-5.18-1' of git://git.kernel.org/pub/scm/linux/kernel/git/powerpc/linux: (179 commits)
powerpc/pseries: Fix use after free in remove_phb_dynamic()
powerpc/time: improve decrementer clockevent processing
powerpc/time: Fix KVM host re-arming a timer beyond decrementer range
powerpc/tm: Fix more userspace r13 corruption
powerpc/xive: fix return value of __setup handler
powerpc/64: Add UADDR64 relocation support
powerpc: 8xx: fix a return value error in mpc8xx_pic_init
powerpc/ps3: remove unneeded semicolons
powerpc/64: Force inlining of prevent_user_access() and set_kuap()
powerpc/bitops: Force inlining of fls()
powerpc: declare unmodified attribute_group usages const
powerpc/spufs: Fix build warning when CONFIG_PROC_FS=n
powerpc/secvar: fix refcount leak in format_show()
powerpc/64e: Tie PPC_BOOK3E_64 to PPC_FSL_BOOK3E
powerpc: Move C prototypes out of asm-prototypes.h
powerpc/kexec: Declare kexec_paca static
powerpc/smp: Declare current_set static
powerpc: Cleanup asm-prototypes.c
powerpc/ftrace: Use STK_GOT in ftrace_mprofile.S
powerpc/ftrace: Regroup PPC64 specific operations in ftrace_mprofile.S
...
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git://git.kernel.org/pub/scm/linux/kernel/git/joro/iommu
Pull iommu updates from Joerg Roedel:
- IOMMU Core changes:
- Removal of aux domain related code as it is basically dead and
will be replaced by iommu-fd framework
- Split of iommu_ops to carry domain-specific call-backs separatly
- Cleanup to remove useless ops->capable implementations
- Improve 32-bit free space estimate in iova allocator
- Intel VT-d updates:
- Various cleanups of the driver
- Support for ATS of SoC-integrated devices listed in ACPI/SATC
table
- ARM SMMU updates:
- Fix SMMUv3 soft lockup during continuous stream of events
- Fix error path for Qualcomm SMMU probe()
- Rework SMMU IRQ setup to prepare the ground for PMU support
- Minor cleanups and refactoring
- AMD IOMMU driver:
- Some minor cleanups and error-handling fixes
- Rockchip IOMMU driver:
- Use standard driver registration
- MSM IOMMU driver:
- Minor cleanup and change to standard driver registration
- Mediatek IOMMU driver:
- Fixes for IOTLB flushing logic
* tag 'iommu-updates-v5.18' of git://git.kernel.org/pub/scm/linux/kernel/git/joro/iommu: (47 commits)
iommu/amd: Improve amd_iommu_v2_exit()
iommu/amd: Remove unused struct fault.devid
iommu/amd: Clean up function declarations
iommu/amd: Call memunmap in error path
iommu/arm-smmu: Account for PMU interrupts
iommu/vt-d: Enable ATS for the devices in SATC table
iommu/vt-d: Remove unused function intel_svm_capable()
iommu/vt-d: Add missing "__init" for rmrr_sanity_check()
iommu/vt-d: Move intel_iommu_ops to header file
iommu/vt-d: Fix indentation of goto labels
iommu/vt-d: Remove unnecessary prototypes
iommu/vt-d: Remove unnecessary includes
iommu/vt-d: Remove DEFER_DEVICE_DOMAIN_INFO
iommu/vt-d: Remove domain and devinfo mempool
iommu/vt-d: Remove iova_cache_get/put()
iommu/vt-d: Remove finding domain in dmar_insert_one_dev_info()
iommu/vt-d: Remove intel_iommu::domains
iommu/mediatek: Always tlb_flush_all when each PM resume
iommu/mediatek: Add tlb_lock in tlb_flush_all
iommu/mediatek: Remove the power status checking in tlb flush all
...
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Pull SCSI updates from James Bottomley:
"This series consists of the usual driver updates (qla2xxx, pm8001,
libsas, smartpqi, scsi_debug, lpfc, iscsi, mpi3mr) plus minor updates
and bug fixes.
The high blast radius core update is the removal of write same, which
affects block and several non-SCSI devices. The other big change,
which is more local, is the removal of the SCSI pointer"
* tag 'scsi-misc' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi: (281 commits)
scsi: scsi_ioctl: Drop needless assignment in sg_io()
scsi: bsg: Drop needless assignment in scsi_bsg_sg_io_fn()
scsi: lpfc: Copyright updates for 14.2.0.0 patches
scsi: lpfc: Update lpfc version to 14.2.0.0
scsi: lpfc: SLI path split: Refactor BSG paths
scsi: lpfc: SLI path split: Refactor Abort paths
scsi: lpfc: SLI path split: Refactor SCSI paths
scsi: lpfc: SLI path split: Refactor CT paths
scsi: lpfc: SLI path split: Refactor misc ELS paths
scsi: lpfc: SLI path split: Refactor VMID paths
scsi: lpfc: SLI path split: Refactor FDISC paths
scsi: lpfc: SLI path split: Refactor LS_RJT paths
scsi: lpfc: SLI path split: Refactor LS_ACC paths
scsi: lpfc: SLI path split: Refactor the RSCN/SCR/RDF/EDC/FARPR paths
scsi: lpfc: SLI path split: Refactor PLOGI/PRLI/ADISC/LOGO paths
scsi: lpfc: SLI path split: Refactor base ELS paths and the FLOGI path
scsi: lpfc: SLI path split: Introduce lpfc_prep_wqe
scsi: lpfc: SLI path split: Refactor fast and slow paths to native SLI4
scsi: lpfc: SLI path split: Refactor lpfc_iocbq
scsi: lpfc: Use kcalloc()
...
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git://git.kernel.org/pub/scm/linux/kernel/git/device-mapper/linux-dm
Pull device mapper updates from Mike Snitzer:
- Significant refactoring and fixing of how DM core does bio-based IO
accounting with focus on fixing wildly inaccurate IO stats for
dm-crypt (and other DM targets that defer bio submission in their own
workqueues). End result is proper IO accounting, made possible by
targets being updated to use the new dm_submit_bio_remap() interface.
- Add hipri bio polling support (REQ_POLLED) to bio-based DM.
- Reduce dm_io and dm_target_io structs so that a single dm_io (which
contains dm_target_io and first clone bio) weighs in at 256 bytes.
For reference the bio struct is 128 bytes.
- Various other small cleanups, fixes or improvements in DM core and
targets.
- Update MAINTAINERS with my kernel.org email address to allow
distinction between my "upstream" and "Red" Hats.
* tag 'for-5.18/dm-changes' of git://git.kernel.org/pub/scm/linux/kernel/git/device-mapper/linux-dm: (46 commits)
dm: consolidate spinlocks in dm_io struct
dm: reduce size of dm_io and dm_target_io structs
dm: switch dm_target_io booleans over to proper flags
dm: switch dm_io booleans over to proper flags
dm: update email address in MAINTAINERS
dm: return void from __send_empty_flush
dm: factor out dm_io_complete
dm cache: use dm_submit_bio_remap
dm: simplify dm_sumbit_bio_remap interface
dm thin: use dm_submit_bio_remap
dm: add WARN_ON_ONCE to dm_submit_bio_remap
dm: support bio polling
block: add ->poll_bio to block_device_operations
dm mpath: use DMINFO instead of printk with KERN_INFO
dm: stop using bdevname
dm-zoned: remove the ->name field in struct dmz_dev
dm: remove unnecessary local variables in __bind
dm: requeue IO if mapping table not yet available
dm io: remove stale comment block for dm_io()
dm thin metadata: remove unused dm_thin_remove_block and __remove
...
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MADV_DONTNEED historically rejects mlocked ranges, but with MLOCK_ONFAULT
and MCL_ONFAULT allowing to mlock without populating, there are valid use
cases for depopulating locked ranges as well.
Users mlock memory to protect secrets. There are allocators for secure
buffers that want in-use memory generally mlocked, but cleared and
invalidated memory to give up the physical pages. This could be done with
explicit munlock -> mlock calls on free -> alloc of course, but that adds
two unnecessary syscalls, heavy mmap_sem write locks, vma splits and
re-merges - only to get rid of the backing pages.
Users also mlockall(MCL_ONFAULT) to suppress sustained paging, but are
okay with on-demand initial population. It seems valid to selectively
free some memory during the lifetime of such a process, without having to
mess with its overall policy.
Why add a separate flag? Isn't this a pretty niche usecase?
- MADV_DONTNEED has been bailing on locked vmas forever. It's at least
conceivable that someone, somewhere is relying on mlock to protect
data from perhaps broader invalidation calls. Changing this behavior
now could lead to quiet data corruption.
- It also clarifies expectations around MADV_FREE and maybe
MADV_REMOVE. It avoids the situation where one quietly behaves
different than the others. MADV_FREE_LOCKED can be added later.
- The combination of mlock() and madvise() in the first place is
probably niche. But where it happens, I'd say that dropping pages
from a locked region once they don't contain secrets or won't page
anymore is much saner than relying on mlock to protect memory from
speculative or errant invalidation calls. It's just that we can't
change the default behavior because of the two previous points.
Given that, an explicit new flag seems to make the most sense.
[hannes@cmpxchg.org: fix mips build]
Link: https://lkml.kernel.org/r/20220304171912.305060-1-hannes@cmpxchg.org
Signed-off-by: Johannes Weiner <hannes@cmpxchg.org>
Acked-by: Michal Hocko <mhocko@suse.com>
Reviewed-by: Mike Kravetz <mike.kravetz@oracle.com>
Reviewed-by: Shakeel Butt <shakeelb@google.com>
Acked-by: Vlastimil Babka <vbabka@suse.cz>
Cc: Nadav Amit <nadav.amit@gmail.com>
Cc: David Hildenbrand <david@redhat.com>
Cc: Dr. David Alan Gilbert <dgilbert@redhat.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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filemap_unaccount_folio() has a WARN_ON_ONCE(folio_test_dirty(folio)). It
is good to warn of late dirtying on a persistent filesystem, but late
dirtying on tmpfs can only lose data which is expected to be thrown away;
and it's a pity if that warning comes ONCE on tmpfs, then hides others
which really matter. Make it conditional on mapping_cap_writeback().
Cleanup: then folio_account_cleaned() no longer needs to check that for
itself, and so no longer needs to know the mapping.
Link: https://lkml.kernel.org/r/b5a1106c-7226-a5c6-ad41-ad4832cae1f@google.com
Signed-off-by: Hugh Dickins <hughd@google.com>
Cc: Matthew Wilcox <willy@infradead.org>
Cc: Jan Kara <jack@suse.de>
Cc: Christoph Hellwig <hch@lst.de>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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All users are gone, let's remove it.
Link: https://lkml.kernel.org/r/20220131162940.210846-9-david@redhat.com
Signed-off-by: David Hildenbrand <david@redhat.com>
Acked-by: Vlastimil Babka <vbabka@suse.cz>
Cc: Andrea Arcangeli <aarcange@redhat.com>
Cc: Christoph Hellwig <hch@lst.de>
Cc: David Rientjes <rientjes@google.com>
Cc: Don Dutile <ddutile@redhat.com>
Cc: Hugh Dickins <hughd@google.com>
Cc: Jan Kara <jack@suse.cz>
Cc: Jann Horn <jannh@google.com>
Cc: Jason Gunthorpe <jgg@nvidia.com>
Cc: John Hubbard <jhubbard@nvidia.com>
Cc: Kirill A. Shutemov <kirill.shutemov@linux.intel.com>
Cc: Liang Zhang <zhangliang5@huawei.com>
Cc: Matthew Wilcox (Oracle) <willy@infradead.org>
Cc: Michal Hocko <mhocko@kernel.org>
Cc: Mike Kravetz <mike.kravetz@oracle.com>
Cc: Mike Rapoport <rppt@linux.ibm.com>
Cc: Nadav Amit <nadav.amit@gmail.com>
Cc: Oleg Nesterov <oleg@redhat.com>
Cc: Peter Xu <peterx@redhat.com>
Cc: Rik van Riel <riel@surriel.com>
Cc: Roman Gushchin <roman.gushchin@linux.dev>
Cc: Shakeel Butt <shakeelb@google.com>
Cc: Yang Shi <shy828301@gmail.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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All users are gone, let's remove it. We'll let SWP_STABLE_WRITES stick
around for now, as it might come in handy in the near future.
Link: https://lkml.kernel.org/r/20220131162940.210846-8-david@redhat.com
Signed-off-by: David Hildenbrand <david@redhat.com>
Acked-by: Vlastimil Babka <vbabka@suse.cz>
Cc: Andrea Arcangeli <aarcange@redhat.com>
Cc: Christoph Hellwig <hch@lst.de>
Cc: David Rientjes <rientjes@google.com>
Cc: Don Dutile <ddutile@redhat.com>
Cc: Hugh Dickins <hughd@google.com>
Cc: Jan Kara <jack@suse.cz>
Cc: Jann Horn <jannh@google.com>
Cc: Jason Gunthorpe <jgg@nvidia.com>
Cc: John Hubbard <jhubbard@nvidia.com>
Cc: Kirill A. Shutemov <kirill.shutemov@linux.intel.com>
Cc: Liang Zhang <zhangliang5@huawei.com>
Cc: Matthew Wilcox (Oracle) <willy@infradead.org>
Cc: Michal Hocko <mhocko@kernel.org>
Cc: Mike Kravetz <mike.kravetz@oracle.com>
Cc: Mike Rapoport <rppt@linux.ibm.com>
Cc: Nadav Amit <nadav.amit@gmail.com>
Cc: Oleg Nesterov <oleg@redhat.com>
Cc: Peter Xu <peterx@redhat.com>
Cc: Rik van Riel <riel@surriel.com>
Cc: Roman Gushchin <roman.gushchin@linux.dev>
Cc: Shakeel Butt <shakeelb@google.com>
Cc: Yang Shi <shy828301@gmail.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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reuse_swap_page() currently indicates if we can write to an anon page
without COW. A COW is required if the page is shared by multiple
processes (either already mapped or via swap entries) or if there is
concurrent writeback that cannot tolerate concurrent page modifications.
However, in the context of khugepaged we're not actually going to write to
a read-only mapped page, we'll copy the page content to our newly
allocated THP and map that THP writable. All we have to make sure is that
the read-only mapped page we're about to copy won't get reused by another
process sharing the page, otherwise, page content would get modified. But
that is already guaranteed via multiple mechanisms (e.g., holding a
reference, holding the page lock, removing the rmap after copying the
page).
The swapcache handling was introduced in commit 10359213d05a ("mm:
incorporate read-only pages into transparent huge pages") and it sounds
like it merely wanted to mimic what do_swap_page() would do when trying to
map a page obtained via the swapcache writable.
As that logic is unnecessary, let's just remove it, removing the last user
of reuse_swap_page().
Link: https://lkml.kernel.org/r/20220131162940.210846-7-david@redhat.com
Signed-off-by: David Hildenbrand <david@redhat.com>
Reviewed-by: Yang Shi <shy828301@gmail.com>
Acked-by: Vlastimil Babka <vbabka@suse.cz>
Cc: Andrea Arcangeli <aarcange@redhat.com>
Cc: Christoph Hellwig <hch@lst.de>
Cc: David Rientjes <rientjes@google.com>
Cc: Don Dutile <ddutile@redhat.com>
Cc: Hugh Dickins <hughd@google.com>
Cc: Jan Kara <jack@suse.cz>
Cc: Jann Horn <jannh@google.com>
Cc: Jason Gunthorpe <jgg@nvidia.com>
Cc: John Hubbard <jhubbard@nvidia.com>
Cc: Kirill A. Shutemov <kirill.shutemov@linux.intel.com>
Cc: Liang Zhang <zhangliang5@huawei.com>
Cc: Matthew Wilcox (Oracle) <willy@infradead.org>
Cc: Michal Hocko <mhocko@kernel.org>
Cc: Mike Kravetz <mike.kravetz@oracle.com>
Cc: Mike Rapoport <rppt@linux.ibm.com>
Cc: Nadav Amit <nadav.amit@gmail.com>
Cc: Oleg Nesterov <oleg@redhat.com>
Cc: Peter Xu <peterx@redhat.com>
Cc: Rik van Riel <riel@surriel.com>
Cc: Roman Gushchin <roman.gushchin@linux.dev>
Cc: Shakeel Butt <shakeelb@google.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
|
|
It's only used inside the huge_memory.c now. Don't export it and make
it static. We can thus reduce the size of huge_memory.o a bit.
Without this patch:
text data bss dec hex filename
32319 2965 4 35288 89d8 mm/huge_memory.o
With this patch:
text data bss dec hex filename
32042 2957 4 35003 88bb mm/huge_memory.o
Link: https://lkml.kernel.org/r/20220302082145.12028-1-linmiaohe@huawei.com
Signed-off-by: Miaohe Lin <linmiaohe@huawei.com>
Reviewed-by: Muchun Song <songmuchun@bytedance.com>
Reviewed-by: Yang Shi <shy828301@gmail.com>
Cc: Matthew Wilcox <willy@infradead.org>
Cc: William Kucharski <william.kucharski@oracle.com>
Cc: Hugh Dickins <hughd@google.com>
Cc: Peter Xu <peterx@redhat.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
|
|
- Move kasan_save_enable/restore_multi_shot() declarations to
mm/kasan/kasan.h, as there is no need for them to be visible outside
of KASAN implementation.
- Only define and export these functions when KASAN tests are enabled.
- Move their definitions closer to other test-related code in report.c.
Link: https://lkml.kernel.org/r/6ba637333b78447f027d775f2d55ab1a40f63c99.1646237226.git.andreyknvl@google.com
Signed-off-by: Andrey Konovalov <andreyknvl@google.com>
Cc: Alexander Potapenko <glider@google.com>
Cc: Andrey Ryabinin <ryabinin.a.a@gmail.com>
Cc: Dmitry Vyukov <dvyukov@google.com>
Cc: Marco Elver <elver@google.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
|
|
Async mode support has already been implemented in commit e80a76aa1a91
("kasan, arm64: tests supports for HW_TAGS async mode") but then got
accidentally broken in commit 99734b535d9b ("kasan: detect false-positives
in tests").
Restore the changes removed by the latter patch and adapt them for asymm
mode: add a sync_fault flag to kunit_kasan_expectation that only get set
if the MTE fault was synchronous, and reenable MTE on such faults in
tests.
Also rename kunit_kasan_expectation to kunit_kasan_status and move its
definition to mm/kasan/kasan.h from include/linux/kasan.h, as this
structure is only internally used by KASAN. Also put the structure
definition under IS_ENABLED(CONFIG_KUNIT).
Link: https://lkml.kernel.org/r/133970562ccacc93ba19d754012c562351d4a8c8.1645033139.git.andreyknvl@google.com
Signed-off-by: Andrey Konovalov <andreyknvl@google.com>
Cc: Marco Elver <elver@google.com>
Cc: Alexander Potapenko <glider@google.com>
Cc: Dmitry Vyukov <dvyukov@google.com>
Cc: Andrey Ryabinin <ryabinin.a.a@gmail.com>
Cc: Vincenzo Frascino <vincenzo.frascino@arm.com>
Cc: Catalin Marinas <catalin.marinas@arm.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
|
|
The kernel can use to allocate executable memory. The only supported
way to do that is via __vmalloc_node_range() with the executable bit set
in the prot argument. (vmap() resets the bit via pgprot_nx()).
Once tag-based KASAN modes start tagging vmalloc allocations, executing
code from such allocations will lead to the PC register getting a tag,
which is not tolerated by the kernel.
Only tag the allocations for normal kernel pages.
[andreyknvl@google.com: pass KASAN_VMALLOC_PROT_NORMAL to kasan_unpoison_vmalloc()]
Link: https://lkml.kernel.org/r/9230ca3d3e40ffca041c133a524191fd71969a8d.1646233925.git.andreyknvl@google.com
[andreyknvl@google.com: support tagged vmalloc mappings]
Link: https://lkml.kernel.org/r/2f6605e3a358cf64d73a05710cb3da356886ad29.1646233925.git.andreyknvl@google.com
[andreyknvl@google.com: don't unintentionally disabled poisoning]
Link: https://lkml.kernel.org/r/de4587d6a719232e83c760113e46ed2d4d8da61e.1646757322.git.andreyknvl@google.com
Link: https://lkml.kernel.org/r/fbfd9939a4dc375923c9a5c6b9e7ab05c26b8c6b.1643047180.git.andreyknvl@google.com
Signed-off-by: Andrey Konovalov <andreyknvl@google.com>
Acked-by: Marco Elver <elver@google.com>
Cc: Alexander Potapenko <glider@google.com>
Cc: Andrey Ryabinin <ryabinin.a.a@gmail.com>
Cc: Catalin Marinas <catalin.marinas@arm.com>
Cc: Dmitry Vyukov <dvyukov@google.com>
Cc: Evgenii Stepanov <eugenis@google.com>
Cc: Mark Rutland <mark.rutland@arm.com>
Cc: Peter Collingbourne <pcc@google.com>
Cc: Vincenzo Frascino <vincenzo.frascino@arm.com>
Cc: Will Deacon <will@kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
|
|
Add vmalloc tagging support to HW_TAGS KASAN.
The key difference between HW_TAGS and the other two KASAN modes when it
comes to vmalloc: HW_TAGS KASAN can only assign tags to physical memory.
The other two modes have shadow memory covering every mapped virtual
memory region.
Make __kasan_unpoison_vmalloc() for HW_TAGS KASAN:
- Skip non-VM_ALLOC mappings as HW_TAGS KASAN can only tag a single
mapping of normal physical memory; see the comment in the function.
- Generate a random tag, tag the returned pointer and the allocation,
and initialize the allocation at the same time.
- Propagate the tag into the page stucts to allow accesses through
page_address(vmalloc_to_page()).
The rest of vmalloc-related KASAN hooks are not needed:
- The shadow-related ones are fully skipped.
- __kasan_poison_vmalloc() is kept as a no-op with a comment.
Poisoning and zeroing of physical pages that are backing vmalloc()
allocations are skipped via __GFP_SKIP_KASAN_UNPOISON and
__GFP_SKIP_ZERO: __kasan_unpoison_vmalloc() does that instead.
Enabling CONFIG_KASAN_VMALLOC with HW_TAGS is not yet allowed.
Link: https://lkml.kernel.org/r/d19b2e9e59a9abc59d05b72dea8429dcaea739c6.1643047180.git.andreyknvl@google.com
Signed-off-by: Andrey Konovalov <andreyknvl@google.com>
Co-developed-by: Vincenzo Frascino <vincenzo.frascino@arm.com>
Signed-off-by: Vincenzo Frascino <vincenzo.frascino@arm.com>
Acked-by: Marco Elver <elver@google.com>
Cc: Alexander Potapenko <glider@google.com>
Cc: Andrey Ryabinin <ryabinin.a.a@gmail.com>
Cc: Catalin Marinas <catalin.marinas@arm.com>
Cc: Dmitry Vyukov <dvyukov@google.com>
Cc: Evgenii Stepanov <eugenis@google.com>
Cc: Mark Rutland <mark.rutland@arm.com>
Cc: Peter Collingbourne <pcc@google.com>
Cc: Will Deacon <will@kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
|
|
Add a new GFP flag __GFP_SKIP_ZERO that allows to skip memory
initialization. The flag is only effective with HW_TAGS KASAN.
This flag will be used by vmalloc code for page_alloc allocations backing
vmalloc() mappings in a following patch. The reason to skip memory
initialization for these pages in page_alloc is because vmalloc code will
be initializing them instead.
With the current implementation, when __GFP_SKIP_ZERO is provided,
__GFP_ZEROTAGS is ignored. This doesn't matter, as these two flags are
never provided at the same time. However, if this is changed in the
future, this particular implementation detail can be changed as well.
Link: https://lkml.kernel.org/r/0d53efeff345de7d708e0baa0d8829167772521e.1643047180.git.andreyknvl@google.com
Signed-off-by: Andrey Konovalov <andreyknvl@google.com>
Acked-by: Marco Elver <elver@google.com>
Cc: Alexander Potapenko <glider@google.com>
Cc: Andrey Ryabinin <ryabinin.a.a@gmail.com>
Cc: Catalin Marinas <catalin.marinas@arm.com>
Cc: Dmitry Vyukov <dvyukov@google.com>
Cc: Evgenii Stepanov <eugenis@google.com>
Cc: Mark Rutland <mark.rutland@arm.com>
Cc: Peter Collingbourne <pcc@google.com>
Cc: Vincenzo Frascino <vincenzo.frascino@arm.com>
Cc: Will Deacon <will@kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
|
|
Add a new GFP flag __GFP_SKIP_KASAN_UNPOISON that allows skipping KASAN
poisoning for page_alloc allocations. The flag is only effective with
HW_TAGS KASAN.
This flag will be used by vmalloc code for page_alloc allocations backing
vmalloc() mappings in a following patch. The reason to skip KASAN
poisoning for these pages in page_alloc is because vmalloc code will be
poisoning them instead.
Also reword the comment for __GFP_SKIP_KASAN_POISON.
Link: https://lkml.kernel.org/r/35c97d77a704f6ff971dd3bfe4be95855744108e.1643047180.git.andreyknvl@google.com
Signed-off-by: Andrey Konovalov <andreyknvl@google.com>
Acked-by: Marco Elver <elver@google.com>
Cc: Alexander Potapenko <glider@google.com>
Cc: Andrey Ryabinin <ryabinin.a.a@gmail.com>
Cc: Catalin Marinas <catalin.marinas@arm.com>
Cc: Dmitry Vyukov <dvyukov@google.com>
Cc: Evgenii Stepanov <eugenis@google.com>
Cc: Mark Rutland <mark.rutland@arm.com>
Cc: Peter Collingbourne <pcc@google.com>
Cc: Vincenzo Frascino <vincenzo.frascino@arm.com>
Cc: Will Deacon <will@kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
|
|
Only define the ___GFP_SKIP_KASAN_POISON flag when CONFIG_KASAN_HW_TAGS is
enabled.
This patch it not useful by itself, but it prepares the code for additions
of new KASAN-specific GFP patches.
Link: https://lkml.kernel.org/r/44e5738a584c11801b2b8f1231898918efc8634a.1643047180.git.andreyknvl@google.com
Signed-off-by: Andrey Konovalov <andreyknvl@google.com>
Acked-by: Marco Elver <elver@google.com>
Cc: Alexander Potapenko <glider@google.com>
Cc: Andrey Ryabinin <ryabinin.a.a@gmail.com>
Cc: Catalin Marinas <catalin.marinas@arm.com>
Cc: Dmitry Vyukov <dvyukov@google.com>
Cc: Evgenii Stepanov <eugenis@google.com>
Cc: Mark Rutland <mark.rutland@arm.com>
Cc: Peter Collingbourne <pcc@google.com>
Cc: Vincenzo Frascino <vincenzo.frascino@arm.com>
Cc: Will Deacon <will@kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
|
|
HW_TAGS KASAN relies on ARM Memory Tagging Extension (MTE). With MTE, a
memory region must be mapped as MT_NORMAL_TAGGED to allow setting memory
tags via MTE-specific instructions.
Add proper protection bits to vmalloc() allocations. These allocations
are always backed by page_alloc pages, so the tags will actually be
getting set on the corresponding physical memory.
Link: https://lkml.kernel.org/r/983fc33542db2f6b1e77b34ca23448d4640bbb9e.1643047180.git.andreyknvl@google.com
Signed-off-by: Andrey Konovalov <andreyknvl@google.com>
Co-developed-by: Vincenzo Frascino <vincenzo.frascino@arm.com>
Signed-off-by: Vincenzo Frascino <vincenzo.frascino@arm.com>
Acked-by: Marco Elver <elver@google.com>
Cc: Alexander Potapenko <glider@google.com>
Cc: Andrey Ryabinin <ryabinin.a.a@gmail.com>
Cc: Catalin Marinas <catalin.marinas@arm.com>
Cc: Dmitry Vyukov <dvyukov@google.com>
Cc: Evgenii Stepanov <eugenis@google.com>
Cc: Mark Rutland <mark.rutland@arm.com>
Cc: Peter Collingbourne <pcc@google.com>
Cc: Will Deacon <will@kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
|
|
Add vmalloc tagging support to SW_TAGS KASAN.
- __kasan_unpoison_vmalloc() now assigns a random pointer tag, poisons
the virtual mapping accordingly, and embeds the tag into the returned
pointer.
- __get_vm_area_node() (used by vmalloc() and vmap()) and
pcpu_get_vm_areas() save the tagged pointer into vm_struct->addr
(note: not into vmap_area->addr).
This requires putting kasan_unpoison_vmalloc() after
setup_vmalloc_vm[_locked](); otherwise the latter will overwrite the
tagged pointer. The tagged pointer then is naturally propagateed to
vmalloc() and vmap().
- vm_map_ram() returns the tagged pointer directly.
As a result of this change, vm_struct->addr is now tagged.
Enabling KASAN_VMALLOC with SW_TAGS is not yet allowed.
Link: https://lkml.kernel.org/r/4a78f3c064ce905e9070c29733aca1dd254a74f1.1643047180.git.andreyknvl@google.com
Signed-off-by: Andrey Konovalov <andreyknvl@google.com>
Acked-by: Marco Elver <elver@google.com>
Cc: Alexander Potapenko <glider@google.com>
Cc: Andrey Ryabinin <ryabinin.a.a@gmail.com>
Cc: Catalin Marinas <catalin.marinas@arm.com>
Cc: Dmitry Vyukov <dvyukov@google.com>
Cc: Evgenii Stepanov <eugenis@google.com>
Cc: Mark Rutland <mark.rutland@arm.com>
Cc: Peter Collingbourne <pcc@google.com>
Cc: Vincenzo Frascino <vincenzo.frascino@arm.com>
Cc: Will Deacon <will@kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
|
|
Add wrappers around functions that [un]poison memory for vmalloc
allocations. These functions will be used by HW_TAGS KASAN and therefore
need to be disabled when kasan=off command line argument is provided.
This patch does no functional changes for software KASAN modes.
Link: https://lkml.kernel.org/r/3b8728eac438c55389fb0f9a8a2145d71dd77487.1643047180.git.andreyknvl@google.com
Signed-off-by: Andrey Konovalov <andreyknvl@google.com>
Reviewed-by: Alexander Potapenko <glider@google.com>
Acked-by: Marco Elver <elver@google.com>
Cc: Andrey Ryabinin <ryabinin.a.a@gmail.com>
Cc: Catalin Marinas <catalin.marinas@arm.com>
Cc: Dmitry Vyukov <dvyukov@google.com>
Cc: Evgenii Stepanov <eugenis@google.com>
Cc: Mark Rutland <mark.rutland@arm.com>
Cc: Peter Collingbourne <pcc@google.com>
Cc: Vincenzo Frascino <vincenzo.frascino@arm.com>
Cc: Will Deacon <will@kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
|
|
Group functions that [de]populate shadow memory for vmalloc. Group
functions that [un]poison memory for vmalloc.
This patch does no functional changes but prepares KASAN code for adding
vmalloc support to HW_TAGS KASAN.
Link: https://lkml.kernel.org/r/aeef49eb249c206c4c9acce2437728068da74c28.1643047180.git.andreyknvl@google.com
Signed-off-by: Andrey Konovalov <andreyknvl@google.com>
Reviewed-by: Alexander Potapenko <glider@google.com>
Acked-by: Marco Elver <elver@google.com>
Cc: Andrey Ryabinin <ryabinin.a.a@gmail.com>
Cc: Catalin Marinas <catalin.marinas@arm.com>
Cc: Dmitry Vyukov <dvyukov@google.com>
Cc: Evgenii Stepanov <eugenis@google.com>
Cc: Mark Rutland <mark.rutland@arm.com>
Cc: Peter Collingbourne <pcc@google.com>
Cc: Vincenzo Frascino <vincenzo.frascino@arm.com>
Cc: Will Deacon <will@kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
|
|
The comment about VM_KASAN in include/linux/vmalloc.c is outdated.
VM_KASAN is currently only used to mark vm_areas allocated for kernel
modules when CONFIG_KASAN_VMALLOC is disabled.
Drop the comment.
Link: https://lkml.kernel.org/r/780395afea83a147b3b5acc36cf2e38f7f8479f9.1643047180.git.andreyknvl@google.com
Signed-off-by: Andrey Konovalov <andreyknvl@google.com>
Reviewed-by: Alexander Potapenko <glider@google.com>
Acked-by: Marco Elver <elver@google.com>
Cc: Andrey Ryabinin <ryabinin.a.a@gmail.com>
Cc: Catalin Marinas <catalin.marinas@arm.com>
Cc: Dmitry Vyukov <dvyukov@google.com>
Cc: Evgenii Stepanov <eugenis@google.com>
Cc: Mark Rutland <mark.rutland@arm.com>
Cc: Peter Collingbourne <pcc@google.com>
Cc: Vincenzo Frascino <vincenzo.frascino@arm.com>
Cc: Will Deacon <will@kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
|
|
Rename kasan_free_shadow to kasan_free_module_shadow and
kasan_module_alloc to kasan_alloc_module_shadow.
These functions are used to allocate/free shadow memory for kernel modules
when KASAN_VMALLOC is not enabled. The new names better reflect their
purpose.
Also reword the comment next to their declaration to improve clarity.
Link: https://lkml.kernel.org/r/36db32bde765d5d0b856f77d2d806e838513fe84.1643047180.git.andreyknvl@google.com
Signed-off-by: Andrey Konovalov <andreyknvl@google.com>
Acked-by: Catalin Marinas <catalin.marinas@arm.com>
Acked-by: Marco Elver <elver@google.com>
Cc: Alexander Potapenko <glider@google.com>
Cc: Andrey Ryabinin <ryabinin.a.a@gmail.com>
Cc: Dmitry Vyukov <dvyukov@google.com>
Cc: Evgenii Stepanov <eugenis@google.com>
Cc: Mark Rutland <mark.rutland@arm.com>
Cc: Peter Collingbourne <pcc@google.com>
Cc: Vincenzo Frascino <vincenzo.frascino@arm.com>
Cc: Will Deacon <will@kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
|
|
Currently, the code responsible for initializing and poisoning memory in
post_alloc_hook() is scattered across two locations: kasan_alloc_pages()
hook for HW_TAGS KASAN and post_alloc_hook() itself. This is confusing.
This and a few following patches combine the code from these two
locations. Along the way, these patches do a step-by-step restructure the
many performed checks to make them easier to follow.
Replace the only caller of kasan_alloc_pages() with its implementation.
As kasan_has_integrated_init() is only true when CONFIG_KASAN_HW_TAGS is
enabled, moving the code does no functional changes.
Also move init and init_tags variables definitions out of
kasan_has_integrated_init() clause in post_alloc_hook(), as they have the
same values regardless of what the if condition evaluates to.
This patch is not useful by itself but makes the simplifications in the
following patches easier to follow.
Link: https://lkml.kernel.org/r/5ac7e0b30f5cbb177ec363ddd7878a3141289592.1643047180.git.andreyknvl@google.com
Signed-off-by: Andrey Konovalov <andreyknvl@google.com>
Acked-by: Marco Elver <elver@google.com>
Cc: Alexander Potapenko <glider@google.com>
Cc: Andrey Ryabinin <ryabinin.a.a@gmail.com>
Cc: Catalin Marinas <catalin.marinas@arm.com>
Cc: Dmitry Vyukov <dvyukov@google.com>
Cc: Evgenii Stepanov <eugenis@google.com>
Cc: Mark Rutland <mark.rutland@arm.com>
Cc: Peter Collingbourne <pcc@google.com>
Cc: Vincenzo Frascino <vincenzo.frascino@arm.com>
Cc: Will Deacon <will@kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
|
|
__GFP_ZEROTAGS is intended as an optimization: if memory is zeroed during
allocation, it's possible to set memory tags at the same time with little
performance impact.
Clarify this intention of __GFP_ZEROTAGS in the comment.
Link: https://lkml.kernel.org/r/cdffde013973c5634a447513e10ec0d21e8eee29.1643047180.git.andreyknvl@google.com
Signed-off-by: Andrey Konovalov <andreyknvl@google.com>
Acked-by: Marco Elver <elver@google.com>
Cc: Alexander Potapenko <glider@google.com>
Cc: Andrey Ryabinin <ryabinin.a.a@gmail.com>
Cc: Catalin Marinas <catalin.marinas@arm.com>
Cc: Dmitry Vyukov <dvyukov@google.com>
Cc: Evgenii Stepanov <eugenis@google.com>
Cc: Mark Rutland <mark.rutland@arm.com>
Cc: Peter Collingbourne <pcc@google.com>
Cc: Vincenzo Frascino <vincenzo.frascino@arm.com>
Cc: Will Deacon <will@kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
|
|
Currently, the code responsible for initializing and poisoning memory in
free_pages_prepare() is scattered across two locations: kasan_free_pages()
for HW_TAGS KASAN and free_pages_prepare() itself. This is confusing.
This and a few following patches combine the code from these two
locations. Along the way, these patches also simplify the performed
checks to make them easier to follow.
Replaces the only caller of kasan_free_pages() with its implementation.
As kasan_has_integrated_init() is only true when CONFIG_KASAN_HW_TAGS is
enabled, moving the code does no functional changes.
This patch is not useful by itself but makes the simplifications in the
following patches easier to follow.
Link: https://lkml.kernel.org/r/303498d15840bb71905852955c6e2390ecc87139.1643047180.git.andreyknvl@google.com
Signed-off-by: Andrey Konovalov <andreyknvl@google.com>
Reviewed-by: Alexander Potapenko <glider@google.com>
Acked-by: Marco Elver <elver@google.com>
Cc: Andrey Ryabinin <ryabinin.a.a@gmail.com>
Cc: Catalin Marinas <catalin.marinas@arm.com>
Cc: Dmitry Vyukov <dvyukov@google.com>
Cc: Evgenii Stepanov <eugenis@google.com>
Cc: Mark Rutland <mark.rutland@arm.com>
Cc: Peter Collingbourne <pcc@google.com>
Cc: Vincenzo Frascino <vincenzo.frascino@arm.com>
Cc: Will Deacon <will@kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
|
|
This adds two trace events for base page and HugeTLB page migrations.
These events, closely follow the implementation details like setting and
removing of PTE migration entries, which are essential operations for
migration. The new CREATE_TRACE_POINTS in <mm/rmap.c> covers both
<events/migration.h> and <events/tlb.h> based trace events. Hence drop
redundant CREATE_TRACE_POINTS from other places which could have otherwise
conflicted during build.
Link: https://lkml.kernel.org/r/1643368182-9588-3-git-send-email-anshuman.khandual@arm.com
Signed-off-by: Anshuman Khandual <anshuman.khandual@arm.com>
Reported-by: kernel test robot <lkp@intel.com>
Cc: Steven Rostedt <rostedt@goodmis.org>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: Zi Yan <ziy@nvidia.com>
Cc: Naoya Horiguchi <naoya.horiguchi@nec.com>
Cc: John Hubbard <jhubbard@nvidia.com>
Cc: Matthew Wilcox <willy@infradead.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
|
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Patch series "mm/migration: Add trace events", v3.
This adds trace events for all migration scenarios including base page,
THP and HugeTLB.
This patch (of 3):
This adds two trace events for PMD based THP migration without split.
These events closely follow the implementation details like setting and
removing of PMD migration entries, which are essential operations for THP
migration. This moves CREATE_TRACE_POINTS into generic THP from powerpc
for these new trace events to be available on other platforms as well.
Link: https://lkml.kernel.org/r/1643368182-9588-1-git-send-email-anshuman.khandual@arm.com
Link: https://lkml.kernel.org/r/1643368182-9588-2-git-send-email-anshuman.khandual@arm.com
Signed-off-by: Anshuman Khandual <anshuman.khandual@arm.com>
Cc: Steven Rostedt <rostedt@goodmis.org>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: Zi Yan <ziy@nvidia.com>
Cc: Naoya Horiguchi <naoya.horiguchi@nec.com>
Cc: John Hubbard <jhubbard@nvidia.com>
Cc: Matthew Wilcox <willy@infradead.org>
Cc: Michael Ellerman <mpe@ellerman.id.au>
Cc: Paul Mackerras <paulus@samba.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
|
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The PG_waiters bit is not included in PAGE_FLAGS_CHECK_AT_FREE, and
vmscan.c's free_unref_page_list() callers rely on that not to generate
bad_page() alerts. So __page_cache_release(), put_pages_list() and
release_pages() (and presumably copy-and-pasted free_zone_device_page())
are redundant and misleading to make a special point of clearing it (as
the "__" implies, it could only safely be used on the freeing path).
Delete __ClearPageWaiters(). Remark on this in one of the "possible"
comments in folio_wake_bit(), and delete the superfluous comments.
Link: https://lkml.kernel.org/r/3eafa969-5b1a-accf-88fe-318784c791a@google.com
Signed-off-by: Hugh Dickins <hughd@google.com>
Tested-by: Yu Zhao <yuzhao@google.com>
Reviewed-by: Yang Shi <shy828301@gmail.com>
Reviewed-by: David Hildenbrand <david@redhat.com>
Cc: Matthew Wilcox <willy@infradead.org>
Cc: Nicholas Piggin <npiggin@gmail.com>
Cc: Yu Zhao <yuzhao@google.com>
Cc: Michal Hocko <mhocko@suse.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
|
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Pull ceph updates from Ilya Dryomov:
"The highlights are:
- several changes to how snap context and snap realms are tracked
(Xiubo Li). In particular, this should resolve a long-standing
issue of high kworker CPU usage and various stalls caused by
needless iteration over all inodes in the snap realm.
- async create fixes to address hangs in some edge cases (Jeff
Layton)
- support for getvxattr MDS op for querying server-side xattrs, such
as file/directory layouts and ephemeral pins (Milind Changire)
- average latency is now maintained for all metrics (Venky Shankar)
- some tweaks around handling inline data to make it fit better with
netfs helper library (David Howells)
Also a couple of memory leaks got plugged along with a few assorted
fixups. Last but not least, Xiubo has stepped up to serve as a CephFS
co-maintainer"
* tag 'ceph-for-5.18-rc1' of https://github.com/ceph/ceph-client: (27 commits)
ceph: fix memory leak in ceph_readdir when note_last_dentry returns error
ceph: uninitialized variable in debug output
ceph: use tracked average r/w/m latencies to display metrics in debugfs
ceph: include average/stdev r/w/m latency in mds metrics
ceph: track average r/w/m latency
ceph: use ktime_to_timespec64() rather than jiffies_to_timespec64()
ceph: assign the ci only when the inode isn't NULL
ceph: fix inode reference leakage in ceph_get_snapdir()
ceph: misc fix for code style and logs
ceph: allocate capsnap memory outside of ceph_queue_cap_snap()
ceph: do not release the global snaprealm until unmounting
ceph: remove incorrect and unused CEPH_INO_DOTDOT macro
MAINTAINERS: add Xiubo Li as cephfs co-maintainer
ceph: eliminate the recursion when rebuilding the snap context
ceph: do not update snapshot context when there is no new snapshot
ceph: zero the dir_entries memory when allocating it
ceph: move to a dedicated slabcache for ceph_cap_snap
ceph: add getvxattr op
libceph: drop else branches in prepare_read_data{,_cont}
ceph: fix comments mentioning i_mutex
...
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Pull drm updates from Dave Airlie:
"Lots of work all over, Intel improving DG2 support, amdkfd CRIU
support, msm new hw support, and faster fbdev support.
dma-buf:
- rename dma-buf-map to iosys-map
core:
- move buddy allocator to core
- add pci/platform init macros
- improve EDID parser deep color handling
- EDID timing type 7 support
- add GPD Win Max quirk
- add yes/no helpers to string_helpers
- flatten syncobj chains
- add nomodeset support to lots of drivers
- improve fb-helper clipping support
- add default property value interface
fbdev:
- improve fbdev ops speed
ttm:
- add a backpointer from ttm bo->ttm resource
dp:
- move displayport headers
- add a dp helper module
bridge:
- anx7625 atomic support, HDCP support
panel:
- split out panel-lvds and lvds bindings
- find panels in OF subnodes
privacy:
- add chromeos privacy screen support
fb:
- hot unplug fw fb on forced removal
simpledrm:
- request region instead of marking ioresource busy
- add panel oreintation property
udmabuf:
- fix oops with 0 pages
amdgpu:
- power management code cleanup
- Enable freesync video mode by default
- RAS code cleanup
- Improve VRAM access for debug using SDMA
- SR-IOV rework special register access and fixes
- profiling power state request ioctl
- expose IP discovery via sysfs
- Cyan skillfish updates
- GC 10.3.7, SDMA 5.2.7, DCN 3.1.6 updates
- expose benchmark tests via debugfs
- add module param to disable XGMI for testing
- GPU reset debugfs register dumping support
amdkfd:
- CRIU support
- SDMA queue fixes
radeon:
- UVD suspend fix
- iMac backlight fix
i915:
- minimal parallel submission for execlists
- DG2-G12 subplatform added
- DG2 programming workarounds
- DG2 accelerated migration support
- flat CCS and CCS engine support for XeHP
- initial small BAR support
- drop fake LMEM support
- ADL-N PCH support
- bigjoiner updates
- introduce VMA resources and async unbinding
- register definitions cleanups
- multi-FBC refactoring
- DG1 OPROM over SPI support
- ADL-N platform enabling
- opregion mailbox #5 support
- DP MST ESI improvements
- drm device based logging
- async flip optimisation for DG2
- CPU arch abstraction fixes
- improve GuC ADS init to work on aarch64
- tweak TTM LRU priority hint
- GuC 69.0.3 support
- remove short term execbuf pins
nouveau:
- higher DP/eDP bitrates
- backlight fixes
msm:
- dpu + dp support for sc8180x
- dp support for sm8350
- dpu + dsi support for qcm2290
- 10nm dsi phy tuning support
- bridge support for dp encoder
- gpu support for additional 7c3 SKUs
ingenic:
- HDMI support for JZ4780
- aux channel EDID support
ast:
- AST2600 support
- add wide screen support
- create DP/DVI connectors
omapdrm:
- fix implicit dma_buf fencing
vc4:
- add CSC + full range support
- better display firmware handoff
panfrost:
- add initial dual-core GPU support
stm:
- new revision support
- fb handover support
mediatek:
- transfer display binding document to yaml format.
- add mt8195 display device binding.
- allow commands to be sent during video mode.
- add wait_for_event for crtc disable by cmdq.
tegra:
- YUV format support
rcar-du:
- LVDS support for M3-W+ (R8A77961)
exynos:
- BGR pixel format for FIMD device"
* tag 'drm-next-2022-03-24' of git://anongit.freedesktop.org/drm/drm: (1529 commits)
drm/i915/display: Do not re-enable PSR after it was marked as not reliable
drm/i915/display: Fix HPD short pulse handling for eDP
drm/amdgpu: Use drm_mode_copy()
drm/radeon: Use drm_mode_copy()
drm/amdgpu: Use ternary operator in `vcn_v1_0_start()`
drm/amdgpu: Remove pointless on stack mode copies
drm/amd/pm: fix indenting in __smu_cmn_reg_print_error()
drm/amdgpu/dc: fix typos in comments
drm/amdgpu: fix typos in comments
drm/amd/pm: fix typos in comments
drm/amdgpu: Add stolen reserved memory for MI25 SRIOV.
drm/amdgpu: Merge get_reserved_allocation to get_vbios_allocations.
drm/amdkfd: evict svm bo worker handle error
drm/amdgpu/vcn: fix vcn ring test failure in igt reload test
drm/amdgpu: only allow secure submission on rings which support that
drm/amdgpu: fixed the warnings reported by kernel test robot
drm/amd/display: 3.2.177
drm/amd/display: [FW Promotion] Release 0.0.108.0
drm/amd/display: Add save/restore PANEL_PWRSEQ_REF_DIV2
drm/amd/display: Wait for hubp read line for Pollock
...
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Merge more updates from Andrew Morton:
"Various misc subsystems, before getting into the post-linux-next
material.
41 patches.
Subsystems affected by this patch series: procfs, misc, core-kernel,
lib, checkpatch, init, pipe, minix, fat, cgroups, kexec, kdump,
taskstats, panic, kcov, resource, and ubsan"
* emailed patches from Andrew Morton <akpm@linux-foundation.org>: (41 commits)
Revert "ubsan, kcsan: Don't combine sanitizer with kcov on clang"
kernel/resource: fix kfree() of bootmem memory again
kcov: properly handle subsequent mmap calls
kcov: split ioctl handling into locked and unlocked parts
panic: move panic_print before kmsg dumpers
panic: add option to dump all CPUs backtraces in panic_print
docs: sysctl/kernel: add missing bit to panic_print
taskstats: remove unneeded dead assignment
kasan: no need to unset panic_on_warn in end_report()
ubsan: no need to unset panic_on_warn in ubsan_epilogue()
panic: unset panic_on_warn inside panic()
docs: kdump: add scp example to write out the dump file
docs: kdump: update description about sysfs file system support
arm64: mm: use IS_ENABLED(CONFIG_KEXEC_CORE) instead of #ifdef
x86/setup: use IS_ENABLED(CONFIG_KEXEC_CORE) instead of #ifdef
riscv: mm: init: use IS_ENABLED(CONFIG_KEXEC_CORE) instead of #ifdef
kexec: make crashk_res, crashk_low_res and crash_notes symbols always visible
cgroup: use irqsave in cgroup_rstat_flush_locked().
fat: use pointer to simple type in put_user()
minix: fix bug when opening a file with O_DIRECT
...
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git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net-next
Pull networking updates from Jakub Kicinski:
"The sprinkling of SPI drivers is because we added a new one and Mark
sent us a SPI driver interface conversion pull request.
Core
----
- Introduce XDP multi-buffer support, allowing the use of XDP with
jumbo frame MTUs and combination with Rx coalescing offloads (LRO).
- Speed up netns dismantling (5x) and lower the memory cost a little.
Remove unnecessary per-netns sockets. Scope some lists to a netns.
Cut down RCU syncing. Use batch methods. Allow netdev registration
to complete out of order.
- Support distinguishing timestamp types (ingress vs egress) and
maintaining them across packet scrubbing points (e.g. redirect).
- Continue the work of annotating packet drop reasons throughout the
stack.
- Switch netdev error counters from an atomic to dynamically
allocated per-CPU counters.
- Rework a few preempt_disable(), local_irq_save() and busy waiting
sections problematic on PREEMPT_RT.
- Extend the ref_tracker to allow catching use-after-free bugs.
BPF
---
- Introduce "packing allocator" for BPF JIT images. JITed code is
marked read only, and used to be allocated at page granularity.
Custom allocator allows for more efficient memory use, lower iTLB
pressure and prevents identity mapping huge pages from getting
split.
- Make use of BTF type annotations (e.g. __user, __percpu) to enforce
the correct probe read access method, add appropriate helpers.
- Convert the BPF preload to use light skeleton and drop the
user-mode-driver dependency.
- Allow XDP BPF_PROG_RUN test infra to send real packets, enabling
its use as a packet generator.
- Allow local storage memory to be allocated with GFP_KERNEL if
called from a hook allowed to sleep.
- Introduce fprobe (multi kprobe) to speed up mass attachment (arch
bits to come later).
- Add unstable conntrack lookup helpers for BPF by using the BPF
kfunc infra.
- Allow cgroup BPF progs to return custom errors to user space.
- Add support for AF_UNIX iterator batching.
- Allow iterator programs to use sleepable helpers.
- Support JIT of add, and, or, xor and xchg atomic ops on arm64.
- Add BTFGen support to bpftool which allows to use CO-RE in kernels
without BTF info.
- Large number of libbpf API improvements, cleanups and deprecations.
Protocols
---------
- Micro-optimize UDPv6 Tx, gaining up to 5% in test on dummy netdev.
- Adjust TSO packet sizes based on min_rtt, allowing very low latency
links (data centers) to always send full-sized TSO super-frames.
- Make IPv6 flow label changes (AKA hash rethink) more configurable,
via sysctl and setsockopt. Distinguish between server and client
behavior.
- VxLAN support to "collect metadata" devices to terminate only
configured VNIs. This is similar to VLAN filtering in the bridge.
- Support inserting IPv6 IOAM information to a fraction of frames.
- Add protocol attribute to IP addresses to allow identifying where
given address comes from (kernel-generated, DHCP etc.)
- Support setting socket and IPv6 options via cmsg on ping6 sockets.
- Reject mis-use of ECN bits in IP headers as part of DSCP/TOS.
Define dscp_t and stop taking ECN bits into account in fib-rules.
- Add support for locked bridge ports (for 802.1X).
- tun: support NAPI for packets received from batched XDP buffs,
doubling the performance in some scenarios.
- IPv6 extension header handling in Open vSwitch.
- Support IPv6 control message load balancing in bonding, prevent
neighbor solicitation and advertisement from using the wrong port.
Support NS/NA monitor selection similar to existing ARP monitor.
- SMC
- improve performance with TCP_CORK and sendfile()
- support auto-corking
- support TCP_NODELAY
- MCTP (Management Component Transport Protocol)
- add user space tag control interface
- I2C binding driver (as specified by DMTF DSP0237)
- Multi-BSSID beacon handling in AP mode for WiFi.
- Bluetooth:
- handle MSFT Monitor Device Event
- add MGMT Adv Monitor Device Found/Lost events
- Multi-Path TCP:
- add support for the SO_SNDTIMEO socket option
- lots of selftest cleanups and improvements
- Increase the max PDU size in CAN ISOTP to 64 kB.
Driver API
----------
- Add HW counters for SW netdevs, a mechanism for devices which
offload packet forwarding to report packet statistics back to
software interfaces such as tunnels.
- Select the default NIC queue count as a fraction of number of
physical CPU cores, instead of hard-coding to 8.
- Expose devlink instance locks to drivers. Allow device layer of
drivers to use that lock directly instead of creating their own
which always runs into ordering issues in devlink callbacks.
- Add header/data split indication to guide user space enabling of
TCP zero-copy Rx.
- Allow configuring completion queue event size.
- Refactor page_pool to enable fragmenting after allocation.
- Add allocation and page reuse statistics to page_pool.
- Improve Multiple Spanning Trees support in the bridge to allow
reuse of topologies across VLANs, saving HW resources in switches.
- DSA (Distributed Switch Architecture):
- replay and offload of host VLAN entries
- offload of static and local FDB entries on LAG interfaces
- FDB isolation and unicast filtering
New hardware / drivers
----------------------
- Ethernet:
- LAN937x T1 PHYs
- Davicom DM9051 SPI NIC driver
- Realtek RTL8367S, RTL8367RB-VB switch and MDIO
- Microchip ksz8563 switches
- Netronome NFP3800 SmartNICs
- Fungible SmartNICs
- MediaTek MT8195 switches
- WiFi:
- mt76: MediaTek mt7916
- mt76: MediaTek mt7921u USB adapters
- brcmfmac: Broadcom BCM43454/6
- Mobile:
- iosm: Intel M.2 7360 WWAN card
Drivers
-------
- Convert many drivers to the new phylink API built for split PCS
designs but also simplifying other cases.
- Intel Ethernet NICs:
- add TTY for GNSS module for E810T device
- improve AF_XDP performance
- GTP-C and GTP-U filter offload
- QinQ VLAN support
- Mellanox Ethernet NICs (mlx5):
- support xdp->data_meta
- multi-buffer XDP
- offload tc push_eth and pop_eth actions
- Netronome Ethernet NICs (nfp):
- flow-independent tc action hardware offload (police / meter)
- AF_XDP
- Other Ethernet NICs:
- at803x: fiber and SFP support
- xgmac: mdio: preamble suppression and custom MDC frequencies
- r8169: enable ASPM L1.2 if system vendor flags it as safe
- macb/gem: ZynqMP SGMII
- hns3: add TX push mode
- dpaa2-eth: software TSO
- lan743x: multi-queue, mdio, SGMII, PTP
- axienet: NAPI and GRO support
- Mellanox Ethernet switches (mlxsw):
- source and dest IP address rewrites
- RJ45 ports
- Marvell Ethernet switches (prestera):
- basic routing offload
- multi-chain TC ACL offload
- NXP embedded Ethernet switches (ocelot & felix):
- PTP over UDP with the ocelot-8021q DSA tagging protocol
- basic QoS classification on Felix DSA switch using dcbnl
- port mirroring for ocelot switches
- Microchip high-speed industrial Ethernet (sparx5):
- offloading of bridge port flooding flags
- PTP Hardware Clock
- Other embedded switches:
- lan966x: PTP Hardward Clock
- qca8k: mdio read/write operations via crafted Ethernet packets
- Qualcomm 802.11ax WiFi (ath11k):
- add LDPC FEC type and 802.11ax High Efficiency data in radiotap
- enable RX PPDU stats in monitor co-exist mode
- Intel WiFi (iwlwifi):
- UHB TAS enablement via BIOS
- band disablement via BIOS
- channel switch offload
- 32 Rx AMPDU sessions in newer devices
- MediaTek WiFi (mt76):
- background radar detection
- thermal management improvements on mt7915
- SAR support for more mt76 platforms
- MBSSID and 6 GHz band on mt7915
- RealTek WiFi:
- rtw89: AP mode
- rtw89: 160 MHz channels and 6 GHz band
- rtw89: hardware scan
- Bluetooth:
- mt7921s: wake on Bluetooth, SCO over I2S, wide-band-speed (WBS)
- Microchip CAN (mcp251xfd):
- multiple RX-FIFOs and runtime configurable RX/TX rings
- internal PLL, runtime PM handling simplification
- improve chip detection and error handling after wakeup"
* tag 'net-next-5.18' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net-next: (2521 commits)
llc: fix netdevice reference leaks in llc_ui_bind()
drivers: ethernet: cpsw: fix panic when interrupt coaleceing is set via ethtool
ice: don't allow to run ice_send_event_to_aux() in atomic ctx
ice: fix 'scheduling while atomic' on aux critical err interrupt
net/sched: fix incorrect vlan_push_eth dest field
net: bridge: mst: Restrict info size queries to bridge ports
net: marvell: prestera: add missing destroy_workqueue() in prestera_module_init()
drivers: net: xgene: Fix regression in CRC stripping
net: geneve: add missing netlink policy and size for IFLA_GENEVE_INNER_PROTO_INHERIT
net: dsa: fix missing host-filtered multicast addresses
net/mlx5e: Fix build warning, detected write beyond size of field
iwlwifi: mvm: Don't fail if PPAG isn't supported
selftests/bpf: Fix kprobe_multi test.
Revert "rethook: x86: Add rethook x86 implementation"
Revert "arm64: rethook: Add arm64 rethook implementation"
Revert "powerpc: Add rethook support"
Revert "ARM: rethook: Add rethook arm implementation"
netdevice: add missing dm_private kdoc
net: bridge: mst: prevent NULL deref in br_mst_info_size()
selftests: forwarding: Use same VRF for port and VLAN upper
...
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Pull VFIO updates from Alex Williamson:
- Introduce new device migration uAPI and implement device specific
mlx5 vfio-pci variant driver supporting new protocol (Jason
Gunthorpe, Yishai Hadas, Leon Romanovsky)
- New HiSilicon acc vfio-pci variant driver, also supporting migration
interface (Shameer Kolothum, Longfang Liu)
- D3hot fixes for vfio-pci-core (Abhishek Sahu)
- Document new vfio-pci variant driver acceptance criteria
(Alex Williamson)
- Fix UML build unresolved ioport_{un}map() functions
(Alex Williamson)
- Fix MAINTAINERS due to header movement (Lukas Bulwahn)
* tag 'vfio-v5.18-rc1' of https://github.com/awilliam/linux-vfio: (31 commits)
vfio-pci: Provide reviewers and acceptance criteria for variant drivers
MAINTAINERS: adjust entry for header movement in hisilicon qm driver
hisi_acc_vfio_pci: Use its own PCI reset_done error handler
hisi_acc_vfio_pci: Add support for VFIO live migration
crypto: hisilicon/qm: Set the VF QM state register
hisi_acc_vfio_pci: Add helper to retrieve the struct pci_driver
hisi_acc_vfio_pci: Restrict access to VF dev BAR2 migration region
hisi_acc_vfio_pci: add new vfio_pci driver for HiSilicon ACC devices
hisi_acc_qm: Move VF PCI device IDs to common header
crypto: hisilicon/qm: Move few definitions to common header
crypto: hisilicon/qm: Move the QM header to include/linux
vfio/mlx5: Fix to not use 0 as NULL pointer
PCI/IOV: Fix wrong kernel-doc identifier
vfio/mlx5: Use its own PCI reset_done error handler
vfio/pci: Expose vfio_pci_core_aer_err_detected()
vfio/mlx5: Implement vfio_pci driver for mlx5 devices
vfio/mlx5: Expose migration commands over mlx5 device
vfio: Remove migration protocol v1 documentation
vfio: Extend the device migration protocol with RUNNING_P2P
vfio: Define device migration protocol v2
...
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git://git.kernel.org/pub/scm/linux/kernel/git/hyperv/linux
Pull hyperv updates from Wei Liu:
"Minor patches from various people"
* tag 'hyperv-next-signed-20220322' of git://git.kernel.org/pub/scm/linux/kernel/git/hyperv/linux:
x86/hyperv: Output host build info as normal Windows version number
hv_balloon: rate-limit "Unhandled message" warning
drivers: hv: log when enabling crash_kexec_post_notifiers
hv_utils: Add comment about max VMbus packet size in VSS driver
Drivers: hv: Compare cpumasks and not their weights in init_vp_index()
Drivers: hv: Rename 'alloced' to 'allocated'
Drivers: hv: vmbus: Use struct_size() helper in kmalloc()
|
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Pull kvm updates from Paolo Bonzini:
"ARM:
- Proper emulation of the OSLock feature of the debug architecture
- Scalibility improvements for the MMU lock when dirty logging is on
- New VMID allocator, which will eventually help with SVA in VMs
- Better support for PMUs in heterogenous systems
- PSCI 1.1 support, enabling support for SYSTEM_RESET2
- Implement CONFIG_DEBUG_LIST at EL2
- Make CONFIG_ARM64_ERRATUM_2077057 default y
- Reduce the overhead of VM exit when no interrupt is pending
- Remove traces of 32bit ARM host support from the documentation
- Updated vgic selftests
- Various cleanups, doc updates and spelling fixes
RISC-V:
- Prevent KVM_COMPAT from being selected
- Optimize __kvm_riscv_switch_to() implementation
- RISC-V SBI v0.3 support
s390:
- memop selftest
- fix SCK locking
- adapter interruptions virtualization for secure guests
- add Claudio Imbrenda as maintainer
- first step to do proper storage key checking
x86:
- Continue switching kvm_x86_ops to static_call(); introduce
static_call_cond() and __static_call_ret0 when applicable.
- Cleanup unused arguments in several functions
- Synthesize AMD 0x80000021 leaf
- Fixes and optimization for Hyper-V sparse-bank hypercalls
- Implement Hyper-V's enlightened MSR bitmap for nested SVM
- Remove MMU auditing
- Eager splitting of page tables (new aka "TDP" MMU only) when dirty
page tracking is enabled
- Cleanup the implementation of the guest PGD cache
- Preparation for the implementation of Intel IPI virtualization
- Fix some segment descriptor checks in the emulator
- Allow AMD AVIC support on systems with physical APIC ID above 255
- Better API to disable virtualization quirks
- Fixes and optimizations for the zapping of page tables:
- Zap roots in two passes, avoiding RCU read-side critical
sections that last too long for very large guests backed by 4
KiB SPTEs.
- Zap invalid and defunct roots asynchronously via
concurrency-managed work queue.
- Allowing yielding when zapping TDP MMU roots in response to the
root's last reference being put.
- Batch more TLB flushes with an RCU trick. Whoever frees the
paging structure now holds RCU as a proxy for all vCPUs running
in the guest, i.e. to prolongs the grace period on their behalf.
It then kicks the the vCPUs out of guest mode before doing
rcu_read_unlock().
Generic:
- Introduce __vcalloc and use it for very large allocations that need
memcg accounting"
* tag 'for-linus' of git://git.kernel.org/pub/scm/virt/kvm/kvm: (246 commits)
KVM: use kvcalloc for array allocations
KVM: x86: Introduce KVM_CAP_DISABLE_QUIRKS2
kvm: x86: Require const tsc for RT
KVM: x86: synthesize CPUID leaf 0x80000021h if useful
KVM: x86: add support for CPUID leaf 0x80000021
KVM: x86: do not use KVM_X86_OP_OPTIONAL_RET0 for get_mt_mask
Revert "KVM: x86/mmu: Zap only TDP MMU leafs in kvm_zap_gfn_range()"
kvm: x86/mmu: Flush TLB before zap_gfn_range releases RCU
KVM: arm64: fix typos in comments
KVM: arm64: Generalise VM features into a set of flags
KVM: s390: selftests: Add error memop tests
KVM: s390: selftests: Add more copy memop tests
KVM: s390: selftests: Add named stages for memop test
KVM: s390: selftests: Add macro as abstraction for MEM_OP
KVM: s390: selftests: Split memop tests
KVM: s390x: fix SCK locking
RISC-V: KVM: Implement SBI HSM suspend call
RISC-V: KVM: Add common kvm_riscv_vcpu_wfi() function
RISC-V: Add SBI HSM suspend related defines
RISC-V: KVM: Implement SBI v0.3 SRST extension
...
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