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2020-04-03Merge tag 'spdx-5.7-rc1' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/spdx Pull SPDX updates from Greg KH: "Here are three SPDX patches for 5.7-rc1. One fixes up the SPDX tag for a single driver, while the other two go through the tree and add SPDX tags for all of the .gitignore files as needed. Nothing too complex, but you will get a merge conflict with your current tree, that should be trivial to handle (one file modified by two things, one file deleted.) All three of these have been in linux-next for a while, with no reported issues other than the merge conflict" * tag 'spdx-5.7-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/spdx: ASoC: MT6660: make spdxcheck.py happy .gitignore: add SPDX License Identifier .gitignore: remove too obvious comments
2020-04-03Merge tag 'for-linus-5.7-rc1-tag' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/xen/tip Pull xen updates from Juergen Gross: - a cleanup patch removing an unused function - a small fix for the xen pciback driver - a series for making the unwinder hyppay with the Xen PV guest idle task stacks * tag 'for-linus-5.7-rc1-tag' of git://git.kernel.org/pub/scm/linux/kernel/git/xen/tip: x86/xen: Make the secondary CPU idle tasks reliable x86/xen: Make the boot CPU idle task reliable xen-pciback: fix INTERRUPT_TYPE_* defines xen/xenbus: remove unused xenbus_map_ring()
2020-04-03Merge branch 'for-5.7' of git://git.kernel.org/pub/scm/linux/kernel/git/tj/wqLinus Torvalds
Pull workqueue updates from Tejun Heo: "Nothing too interesting. Just two trivial patches" * 'for-5.7' of git://git.kernel.org/pub/scm/linux/kernel/git/tj/wq: workqueue: Mark up unlocked access to wq->first_flusher workqueue: Make workqueue_init*() return void
2020-04-03Merge branch 'for-5.7' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/tj/cgroup Pull cgroup updates from Tejun Heo: - Christian extended clone3 so that processes can be spawned into cgroups directly. This is not only neat in terms of semantics but also avoids grabbing the global cgroup_threadgroup_rwsem for migration. - Daniel added !root xattr support to cgroupfs. Userland already uses xattrs on cgroupfs for bookkeeping. This will allow delegated cgroups to support such usages. - Prateek tried to make cpuset hotplug handling synchronous but that led to possible deadlock scenarios. Reverted. - Other minor changes including release_agent_path handling cleanup. * 'for-5.7' of git://git.kernel.org/pub/scm/linux/kernel/git/tj/cgroup: docs: cgroup-v1: Document the cpuset_v2_mode mount option Revert "cpuset: Make cpuset hotplug synchronous" cgroupfs: Support user xattrs kernfs: Add option to enable user xattrs kernfs: Add removed_size out param for simple_xattr_set kernfs: kvmalloc xattr value instead of kmalloc cgroup: Restructure release_agent_path handling selftests/cgroup: add tests for cloning into cgroups clone3: allow spawning processes into cgroups cgroup: add cgroup_may_write() helper cgroup: refactor fork helpers cgroup: add cgroup_get_from_file() helper cgroup: unify attach permission checking cpuset: Make cpuset hotplug synchronous cgroup.c: Use built-in RCU list checking kselftest/cgroup: add cgroup destruction test cgroup: Clean up css_set task traversal
2020-04-03Merge tag 'kgdb-5.7-rc1' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/danielt/linux Pull kgdb updates from Daniel Thompson: "Pretty quiet this cycle. Just a couple of small fixes from myself both of which were reviewed by Doug Anderson to keep me honest (thanks)" * tag 'kgdb-5.7-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/danielt/linux: kdb: Censor attempts to set PROMPT without ENABLE_MEM_READ kdb: Eliminate strncpy() warnings by replacing with strscpy()
2020-04-03Merge tag 'for-linus' of git://git.armlinux.org.uk/~rmk/linux-armLinus Torvalds
Pull ARM updates from Russell King: - replace setup_irq() with request_irq() for ebsa110, footbridge, rpc - fix clang assembly error in kexec code - remove .fixup section in boot stub - decompressor / EFI cache flushing updates * tag 'for-linus' of git://git.armlinux.org.uk/~rmk/linux-arm: ARM: 8966/1: rpc: replace setup_irq() by request_irq() ARM: 8965/2: footbridge: replace setup_irq() by request_irq() ARM: 8964/1: ebsa110: replace setup_irq() by request_irq() ARM: 8962/1: kexec: drop invalid assembly argument ARM: decompressor: switch to by-VA cache maintenance for v7 cores ARM: decompressor: prepare cache_clean_flush for doing by-VA maintenance ARM: decompressor: factor out routine to obtain the inflated image size ARM: 8959/1: Remove unused .fixup section in boot stub ARM: allow unwinder to unwind recursive functions
2020-04-03remoteproc/omap: Fix set_load call in omap_rproc_request_timerNathan Chancellor
When building arm allyesconfig: drivers/remoteproc/omap_remoteproc.c:174:44: error: too many arguments to function call, expected 2, have 3 timer->timer_ops->set_load(timer->odt, 0, 0); ~~~~~~~~~~~~~~~~~~~~~~~~~~ ^ 1 error generated. This is due to commit 02e6d546e3bd ("clocksource/drivers/timer-ti-dm: Enable autoreload in set_pwm") in the clockevents tree interacting with commit e28edc571925 ("remoteproc/omap: Request a timer(s) for remoteproc usage") from the rpmsg tree. This should have been fixed during the merge of the remoteproc tree since it happened after the clockevents tree merge; however, it does not look like my email was noticed by either maintainer and I did not pay attention when the pull was sent since I was on CC. Fixes: c6570114316f ("Merge tag 'rproc-v5.7' of git://git.kernel.org/pub/scm/linux/kernel/git/andersson/remoteproc") Link: https://lore.kernel.org/lkml/20200327185055.GA22438@ubuntu-m2-xlarge-x86/ Signed-off-by: Nathan Chancellor <natechancellor@gmail.com> Acked-by: Suman Anna <s-anna@ti.com> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2020-04-03docs: cgroup-v1: Document the cpuset_v2_mode mount optionWaiman Long
The cpuset in cgroup v1 accepts a special "cpuset_v2_mode" mount option that make cpuset.cpus and cpuset.mems behave more like those in cgroup v2. Document it to make other people more aware of this feature that can be useful in some circumstances. Signed-off-by: Waiman Long <longman@redhat.com> Signed-off-by: Tejun Heo <tj@kernel.org>
2020-04-03Revert "cpuset: Make cpuset hotplug synchronous"Tejun Heo
This reverts commit a49e4629b5ed ("cpuset: Make cpuset hotplug synchronous") as it may deadlock with cpu hotplug path. Link: http://lkml.kernel.org/r/F0388D99-84D7-453B-9B6B-EEFF0E7BE4CC@lca.pw Signed-off-by: Tejun Heo <tj@kernel.org> Reported-by: Qian Cai <cai@lca.pw> Cc: Prateek Sood <prsood@codeaurora.org>
2020-04-02Merge tag 'devicetree-for-5.7' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/robh/linux Pull devicetree updates from Rob Herring: - Unit test for overlays with GPIO hogs - Improve dma-ranges parsing to handle dma-ranges with multiple entries - Update dtc to upstream version v1.6.0-2-g87a656ae5ff9 - Improve overlay error reporting - Device link support for power-domains and hwlocks bindings - Add vendor prefixes for Beacon, Topwise, ENE, Dell, SG Micro, Elida, PocketBook, Xiaomi, Linutronix, OzzMaker, Waveshare Electronics, and ITE Tech - Add deprecated Marvell vendor prefix 'mrvl' - A bunch of binding conversions to DT schema continues. Of note, the common serial and USB connector bindings are converted. - Add more Arm CPU compatibles - Drop Mark Rutland as DT maintainer :( * tag 'devicetree-for-5.7' of git://git.kernel.org/pub/scm/linux/kernel/git/robh/linux: (106 commits) MAINTAINERS: drop an old reference to stm32 pwm timers doc MAINTAINERS: dt: update etnaviv file reference dt-bindings: usb: dwc2: fix bindings for amlogic, meson-gxbb-usb dt-bindings: uniphier-system-bus: fix warning in the example dt-bindings: display: meson-vpu: fix indentation of reg-names' "items" dt-bindings: iio: Fix adi, ltc2983 uint64-matrix schema constraints dt-bindings: power: Fix example for power-domain dt-bindings: arm: Add some constraints for PSCI nodes of: some unittest overlays not untracked of: gpio unittest kfree() wrong object dt-bindings: phy: convert phy-rockchip-inno-usb2 bindings to yaml dt-bindings: serial: sh-sci: Convert to json-schema dt-bindings: serial: Document serialN aliases dt-bindings: thermal: tsens: Set 'additionalProperties: false' dt-bindings: thermal: tsens: Fix nvmem-cell-names schema dt-bindings: vendor-prefixes: Add Beacon vendor prefix dt-bindings: vendor-prefixes: Add Topwise of: of_private.h: Replace zero-length array with flexible-array member docs: dt: fix a broken reference to input.yaml docs: dt: fix references to ap806-system-controller.txt ...
2020-04-02Merge tag 'scsi-misc' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsiLinus Torvalds
Pull SCSI updates from James Bottomley: "This series has a huge amount of churn because it pulls in Mauro's doc update changing all our txt files to rst ones. Excluding that, we have the usual driver updates (qla2xxx, ufs, lpfc, zfcp, ibmvfc, pm80xx, aacraid), a treewide update for scnprintf and some other minor updates. The major core change is Hannes moving functions out of the aacraid driver and into the core" * tag 'scsi-misc' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi: (223 commits) scsi: aic7xxx: aic97xx: Remove FreeBSD-specific code scsi: ufs: Do not rely on prefetched data scsi: dc395x: remove dc395x_bios_param scsi: libiscsi: Fix error count for active session scsi: hpsa: correct race condition in offload enabled scsi: message: fusion: Replace zero-length array with flexible-array member scsi: qedi: Add PCI shutdown handler support scsi: qedi: Add MFW error recovery process scsi: ufs: Enable block layer runtime PM for well-known logical units scsi: ufs-qcom: Override devfreq parameters scsi: ufshcd: Let vendor override devfreq parameters scsi: ufshcd: Update the set frequency to devfreq scsi: ufs: Resume ufs host before accessing ufs device scsi: ufs-mediatek: customize the delay for enabling host scsi: ufs: make HCE polling more compact to improve initialization latency scsi: ufs: allow custom delay prior to host enabling scsi: ufs-mediatek: use common delay function scsi: ufs: introduce common and flexible delay function scsi: ufs: use an enum for host capabilities scsi: ufs: fix uninitialized tx_lanes in ufshcd_disable_tx_lcc() ...
2020-04-02Merge tag 'mtd/for-5.7' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/mtd/linux Pull MTD updates from Miquel Raynal: "MTD core changes: - Fix issue where write_cached_data() fails but write() still returns success - maps: sa1100-flash: Replace zero-length array with flexible-array member - phram: Fix a double free issue in error path - Convert fallthrough comments into statements - MAINTAINERS: Add the IRC channel to the MTD related subsystems Raw NAND core changes: - Add support for manufacturer specific suspend/resume operation - Add support for manufacturer specific lock/unlock operation - Replace zero-length array with flexible-array member - Fix a typo ("manufecturer") - Ensure nand_soft_waitrdy wait period is enough Raw NAND controller driver changes: - Brcmnand: * Add support for flash-edu for dma transfers (+ bindings) - Cadence: * Reinit completion before executing a new command * Change bad block marker size * Fix the calculation of the avaialble OOB size * Get meta data size from registers - Qualcom: * Use dma_request_chan() instead dma_request_slave_channel() * Release resources on failure within qcom_nandc_alloc() - Allwinner: * Use dma_request_chan() instead dma_request_slave_channel() - Marvell: * Use dma_request_chan() instead dma_request_slave_channel() * Release DMA channel on error - Freescale: * Use dma_request_chan() instead dma_request_slave_channel() - Macronix: * Add support for Macronix NAND randomizer (+ bindings) - Ams-delta: * Rename structures and functions to gpio_nand* * Make the driver custom I/O ready * Drop useless local variable * Support custom driver initialisation * Add module device tables * Handle more GPIO pins as optional * Make read pulses optional * Don't hardcode read/write pulse widths * Push inversion handling to gpiolib * Enable OF partition info support * Drop board specific partition info * Use struct gpio_nand_platdata * Write protect device during probe - Ingenic: * Use devm_platform_ioremap_resource() * Add dependency on MIPS || COMPILE_TEST - Denali: * Deassert write protect pin - ST: * Use dma_request_chan() instead dma_request_slave_channel() Raw NAND chip driver changes: - Toshiba: * Support reading the number of bitflips for BENAND (Built-in ECC NAND) - Macronix: * Add support for deep power down mode * Add support for block protection SPI-NAND core changes: - Do not erase the block before writing a bad block marker - Explicitly use MTD_OPS_RAW to write the bad block marker to OOB - Stop using spinand->oobbuf for buffering bad block markers - Rework detect procedure for different READ_ID operation SPI-NAND driver changes: - Toshiba: * Support for new Kioxia Serial NAND * Rename function name to change suffix and prefix (8Gbit) * Add comment about Kioxia ID - Micron: * Add new Micron SPI NAND devices with multiple dies * Add M70A series Micron SPI NAND devices * identify SPI NAND device with Continuous Read mode * Add new Micron SPI NAND devices * Describe the SPI NAND device MT29F2G01ABAGD * Generalize the OOB layout structure and function names SPI NOR core changes: - Move all the manufacturer specific quirks/code out of the core, to make the core logic more readable and thus ease maintenance. - Move the SFDP logic out of the core, it provides a better separation between the SFDP parsing and core logic. - Trim what is exposed in spi-nor.h. The SPI NOR controllers drivers must not be able to use structures that are meant just for the SPI NOR core. - Use the spi-mem direct mapping API to let advanced controllers optimize the read/write operations when they support direct mapping. - Add generic formula for the Status Register block protection handling. It fixes some long standing locking limitations and eases the addition of the 4bit block protection support. - Add block protection support for flashes with 4 block protection bits in the Status Register. SPI NOR controller drivers changes: - The mtk-quadspi driver is replaced by the new spi-mem spi-mtk-nor driver. - Merge tag 'mtk-mtd-spi-move' into spi-nor/next to avoid conflicts. HyperBus changes: - Print error msg when compatible is wrong or missing - Move mapping of direct access window from core to individual drivers" * tag 'mtd/for-5.7' of git://git.kernel.org/pub/scm/linux/kernel/git/mtd/linux: (103 commits) mtd: Convert fallthrough comments into statements mtd: rawnand: toshiba: Support reading the number of bitflips for BENAND (Built-in ECC NAND) MAINTAINERS: Add the IRC channel to the MTD related subsystems mtd: Fix issue where write_cached_data() fails but write() still returns success mtd: maps: sa1100-flash: Replace zero-length array with flexible-array member mtd: phram: fix a double free issue in error path mtd: spinand: toshiba: Support for new Kioxia Serial NAND mtd: spinand: toshiba: Rename function name to change suffix and prefix (8Gbit) mtd: rawnand: macronix: Add support for deep power down mode mtd: rawnand: Add support for manufacturer specific suspend/resume operation mtd: spi-nor: Enable locking for n25q512ax3/n25q512a mtd: spi-nor: Add SR 4bit block protection support mtd: spi-nor: Add generic formula for SR block protection handling mtd: spi-nor: Set all BP bits to one when lock_len == mtd->size mtd: spi-nor: controllers: aspeed-smc: Replace zero-length array with flexible-array member mtd: spi-nor: Clear WEL bit when erase or program errors occur MAINTAINERS: update entry after SPI NOR controller move mtd: spi-nor: Trim what is exposed in spi-nor.h mtd: spi-nor: Drop the MFR definitions mtd: spi-nor: Get rid of the now empty spi_nor_ids[] table ...
2020-04-02Merge tag 'dmaengine-5.7-rc1' of git://git.infradead.org/users/vkoul/slave-dmaLinus Torvalds
Pull dmaengine updates from Vinod Koul: "Core: - Some code cleanup and optimization in core by Andy - Debugfs support for displaying dmaengine channels by Peter Drivers: - New driver for uniphier-xdmac controller - Updates to stm32 dma, mdma and dmamux drivers and PM support - More updates to idxd drivers - Bunch of changes in tegra-apb driver and cleaning up of pm functions - Bunch of spelling fixes and Replace zero-length array patches - Shutdown hook for fsl-dpaa2-qdma driver - Support for interleaved transfers for ti-edma and virtualization support for k3-dma driver - Support for reset and updates in xilinx_dma driver - Improvements and locking updates in at_hdma driver" * tag 'dmaengine-5.7-rc1' of git://git.infradead.org/users/vkoul/slave-dma: (89 commits) dt-bindings: dma: renesas,usb-dmac: add r8a77961 support dmaengine: uniphier-xdmac: Remove redandant error log for platform_get_irq dmaengine: tegra-apb: Improve DMA synchronization dmaengine: tegra-apb: Don't save/restore IRQ flags in interrupt handler dmaengine: tegra-apb: mark PM functions as __maybe_unused dmaengine: fix spelling mistake "exceds" -> "exceeds" dmaengine: sprd: Set request pending flag when DMA controller is active dmaengine: ppc4xx: Use scnprintf() for avoiding potential buffer overflow dmaengine: idxd: remove global token limit check dmaengine: idxd: reflect shadow copy of traffic class programming dmaengine: idxd: Merge definition of dsa_batch_desc into dsa_hw_desc dmaengine: Create debug directories for DMA devices dmaengine: ti: k3-udma: Implement custom dbg_summary_show for debugfs dmaengine: Add basic debugfs support dmaengine: fsl-dpaa2-qdma: remove set but not used variable 'dpaa2_qdma' dmaengine: ti: edma: fix null dereference because of a typo in pointer name dmaengine: fsl-dpaa2-qdma: Adding shutdown hook dmaengine: uniphier-xdmac: Add UniPhier external DMA controller driver dt-bindings: dmaengine: Add UniPhier external DMA controller bindings dmaengine: ti: k3-udma: Implement support for atype (for virtualization) ...
2020-04-02Merge branch 'i2c/for-5.7' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/wsa/linux Pull i2c updates from Wolfram Sang: "I2C has: - using defines for bus speeds to avoid mistakes in hardcoded values; lots of small driver updates because of that. Thanks, Andy! - API change: i2c_setup_smbus_alert() was renamed to i2c_new_smbus_alert_device() and returns ERRPTR now. All in-tree users have been converted - in the core, a rare race condition when deleting the cdev has been fixed. Thanks, Kevin! - lots of driver updates. Thanks, everyone! I also want to mention: The amount of review and testing tags given was quite high this time. Thank you to these people, too. I hope we can keep it like this!" * 'i2c/for-5.7' of git://git.kernel.org/pub/scm/linux/kernel/git/wsa/linux: (34 commits) i2c: rcar: clean up after refactoring i2c_timings macintosh: convert to i2c_new_scanned_device i2c: drivers: Use generic definitions for bus frequencies i2c: algo: Use generic definitions for bus frequencies i2c: stm32f7: switch to I²C generic property parsing i2c: rcar: Consolidate timings calls in rcar_i2c_clock_calculate() i2c: core: Allow override timing properties with 0 i2c: core: Provide generic definitions for bus frequencies i2c: mxs: Use dma_request_chan() instead dma_request_slave_channel() i2c: imx: remove duplicate print after platform_get_irq() i2c: designware: Fix spelling typos in the comments i2c: designware: Discard i2c_dw_read_comp_param() function i2c: designware: Detect the FIFO size in the common code i2c: dev: Fix the race between the release of i2c_dev and cdev i2c: qcom-geni: Drop of_platform.h include i2c: qcom-geni: Grow a dev pointer to simplify code i2c: qcom-geni: Let firmware specify irq trigger flags i2c: stm32f7: do not backup read-only PECR register i2c: smbus: remove outdated references to irq level triggers i2c: convert SMBus alert setup function to return an ERRPTR ...
2020-04-02Merge tag 'sound-5.7-rc1' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound Pull sound updates from Takashi Iwai: "This became again a busy development cycle. There are few ALSA core updates (merely API cleanups and sparse fixes), with the majority of other changes are found in ASoC scene. Here are some highlights: ALSA core: - More helper macros for sparse warning fixes (e.g. bitwise types) - Slight optimization of PCM OSS locks - Make common handling for PCM / compress buffers (for SOF) ASoC: - Lots of code refactoring and modernization for (still ongoing) componentization works - Conversion of SND_SOC_ALL_CODECS to use imply - Continued refactoring and fixing of the Intel SOF/SST support, including the initial (but still incomplete) SoundWire support - SoundWire and more advanced clocking support for Realtek RT5682 - Support for amlogic GX, Meson 8, Meson 8B and T9015 DAC, Broadcom DSL/PON, Ingenic JZ4760 and JZ4770, Realtek RL6231, and TI TAS2563 and TLV320ADCX140 HD-audio: - Optimizations in HDMI jack handling - A few new quirks and fixups for Realtek codecs USB-audio: - Delayed registration support - New quirks for Motu, Kingston, Presonus" * tag 'sound-5.7-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound: (415 commits) ALSA: usb-audio: Fix case when USB MIDI interface has more than one extra endpoint descriptor Revert "ALSA: uapi: Drop asound.h inclusion from asoc.h" ALSA: hda/realtek - Remove now-unnecessary XPS 13 headphone noise fixups ALSA: hda/realtek - Set principled PC Beep configuration for ALC256 ALSA: doc: Document PC Beep Hidden Register on Realtek ALC256 ALSA: hda/realtek - a fake key event is triggered by running shutup ALSA: hda: default enable CA0132 DSP support ASoC: amd: acp3x-pcm-dma: clean up two indentation issues ASoC: tlv320adcx140: Remove undocumented property ASoC: Intel: sof_sdw: Add Volteer support with RT5682 SNDW helper function ASoC: Intel: common: add match table for TGL RT5682 SoundWire driver ASoC: Intel: boards: add sof_sdw machine driver ASoC: Intel: soc-acpi: update topology and driver name for SoundWire platforms ASoC: rt5682: move DAI clock registry to I2S mode ASoC: pxa: magician: convert to use i2c_new_client_device() ASoC: SOF: Intel: hda-ctrl: add reset cycle before parsing capabilities Asoc: SOF: Intel: hda: check SoundWire wakeen interrupt in irq thread ASoC: SOF: Intel: hda: add WAKEEN interrupt support for SoundWire ASoC: SOF: Intel: hda: add parameter to control SoundWire clock stop quirks ASoC: SOF: Intel: hda: merge IPC, stream and SoundWire interrupt handlers ...
2020-04-02Merge tag 'pinctrl-v5.7-1' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-pinctrl Pull pin control updates from Linus Walleij: "This is the bulk of pin control changes for the v5.7 kernel cycle. There are no core changes this time, only driver developments: - New driver for the Dialog Semiconductor DA9062 Power Management Integrated Circuit (PMIC). - Renesas SH-PFC has improved consistency, with group and register checks in the configuration checker. - New subdriver for the Qualcomm IPQ6018. - Add the RGMII pin control functionality to Qualcomm IPQ8064. - Performance and code quality cleanups in the Mediatek driver. - Improve the Broadcom BCM2835 support to cover all the GPIOs that exist in it. - The Allwinner/Sunxi driver properly masks non-wakeup IRQs on suspend. - Add some missing groups and functions to the Ingenic driver. - Convert some of the Freescale device tree bindings to use the new and all improved JSON YAML markup. - Refactorings and support for the SFIO/GPIO in the Tegra194 SoC driver. - Support high impedance mode in the Spreadtrum/Unisoc driver" * tag 'pinctrl-v5.7-1' of git://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-pinctrl: (64 commits) pinctrl: qcom: fix compilation error pinctrl: qcom: use scm_call to route GPIO irq to Apps pinctrl: sprd: Add pin high impedance mode support pinctrl: sprd: Use the correct pin output configuration pinctrl: tegra: Add SFIO/GPIO programming on Tegra194 pinctrl: tegra: Renumber the GG.0 and GG.1 pins pinctrl: tegra: Do not add default pin range on Tegra194 pinctrl: tegra: Pass struct tegra_pmx for pin range check pinctrl: tegra: Fix "Scmitt" -> "Schmitt" typo pinctrl: tegra: Fix whitespace issues for improved readability pinctrl: mediatek: Use scnprintf() for avoiding potential buffer overflow pinctrl: freescale: drop the dependency on ARM64 for i.MX8M Revert "pinctrl: mvebu: armada-37xx: use use platform api" dt-bindings: pinctrl: at91: Fix a typo ("descibe") pinctrl: meson: add tsin pinctrl for meson gxbb/gxl/gxm pinctrl: sprd: Fix the kconfig warning pinctrl: ingenic: add hdmi-ddc pin control group pinctrl: sirf/atlas7: Replace zero-length array with flexible-array member pinctrl: sprd: Allow the SPRD pinctrl driver building into a module pinctrl: Export some needed symbols at module load time ...
2020-04-02Merge tag 'hwlock-v5.7' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/andersson/remoteproc Pull hwspinlock updates from Bjorn Andersson: "This marks all hwspinlock driver COMPILE_TESTable and replaces the zero-length array in hwspinlock_device with a flexible-array member" * tag 'hwlock-v5.7' of git://git.kernel.org/pub/scm/linux/kernel/git/andersson/remoteproc: hwspinlock: hwspinlock_internal.h: Replace zero-length array with flexible-array member hwspinlock: Allow drivers to be built with COMPILE_TEST
2020-04-02Merge tag 'rproc-v5.7' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/andersson/remoteproc Pull remoteproc updates from Bjorn Andersson: - a range of improvements to the OMAP remoeteproc driver; among other things adding devicetree, suspend/resume and watchdog support, and adds support the remoteprocs in the DRA7xx SoC - support for 64-bit firmware, extends the ELF loader to support this and fixes for a number of race conditions in the recovery handling - a generic mechanism to allow remoteproc drivers to sync state with remote processors during a panic, and uses this to prepare Qualcomm remote processors for post mortem analysis - fixes to cleanly recover from crashes in the modem firmware on production Qualcomm devices * tag 'rproc-v5.7' of git://git.kernel.org/pub/scm/linux/kernel/git/andersson/remoteproc: (37 commits) remoteproc/omap: Switch to SPDX license identifiers remoteproc/omap: Add watchdog functionality for remote processors remoteproc/omap: Report device exceptions and trigger recovery remoteproc/omap: Add support for runtime auto-suspend/resume remoteproc/omap: Add support for system suspend/resume remoteproc/omap: Request a timer(s) for remoteproc usage remoteproc/omap: Check for undefined mailbox messages remoteproc/omap: Remove the platform_data header remoteproc/omap: Add support for DRA7xx remote processors remoteproc/omap: Initialize and assign reserved memory node remoteproc/omap: Add the rproc ops .da_to_va() implementation remoteproc/omap: Add support to parse internal memories from DT remoteproc/omap: Add a sanity check for DSP boot address alignment remoteproc/omap: Add device tree support dt-bindings: remoteproc: Add OMAP remoteproc bindings remoteproc: qcom: Introduce panic handler for PAS and ADSP remoteproc: qcom: q6v5: Add common panic handler remoteproc: Introduce "panic" callback in ops remoteproc: Traverse rproc_list under RCU read lock remoteproc: Fix NULL pointer dereference in rproc_virtio_notify ...
2020-04-02Merge branch 'for-5.7' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/dennis/percpu Pull percpu updates from Dennis Zhou: "This is just a few documentation fixes for percpu refcount and bitmap helpers that went in v5.6, and moving my emails to all be at korg" * 'for-5.7' of git://git.kernel.org/pub/scm/linux/kernel/git/dennis/percpu: percpu: update copyright emails to dennis@kernel.org include/bitmap.h: add new functions to documentation include/bitmap.h: add missing parameter in docs percpu_ref: Fix comment regarding percpu_ref_init flags
2020-04-02Merge tag 'for-linus' of git://git.kernel.org/pub/scm/virt/kvm/kvmLinus Torvalds
Pull kvm updates from Paolo Bonzini: "ARM: - GICv4.1 support - 32bit host removal PPC: - secure (encrypted) using under the Protected Execution Framework ultravisor s390: - allow disabling GISA (hardware interrupt injection) and protected VMs/ultravisor support. x86: - New dirty bitmap flag that sets all bits in the bitmap when dirty page logging is enabled; this is faster because it doesn't require bulk modification of the page tables. - Initial work on making nested SVM event injection more similar to VMX, and less buggy. - Various cleanups to MMU code (though the big ones and related optimizations were delayed to 5.8). Instead of using cr3 in function names which occasionally means eptp, KVM too has standardized on "pgd". - A large refactoring of CPUID features, which now use an array that parallels the core x86_features. - Some removal of pointer chasing from kvm_x86_ops, which will also be switched to static calls as soon as they are available. - New Tigerlake CPUID features. - More bugfixes, optimizations and cleanups. Generic: - selftests: cleanups, new MMU notifier stress test, steal-time test - CSV output for kvm_stat" * tag 'for-linus' of git://git.kernel.org/pub/scm/virt/kvm/kvm: (277 commits) x86/kvm: fix a missing-prototypes "vmread_error" KVM: x86: Fix BUILD_BUG() in __cpuid_entry_get_reg() w/ CONFIG_UBSAN=y KVM: VMX: Add a trampoline to fix VMREAD error handling KVM: SVM: Annotate svm_x86_ops as __initdata KVM: VMX: Annotate vmx_x86_ops as __initdata KVM: x86: Drop __exit from kvm_x86_ops' hardware_unsetup() KVM: x86: Copy kvm_x86_ops by value to eliminate layer of indirection KVM: x86: Set kvm_x86_ops only after ->hardware_setup() completes KVM: VMX: Configure runtime hooks using vmx_x86_ops KVM: VMX: Move hardware_setup() definition below vmx_x86_ops KVM: x86: Move init-only kvm_x86_ops to separate struct KVM: Pass kvm_init()'s opaque param to additional arch funcs s390/gmap: return proper error code on ksm unsharing KVM: selftests: Fix cosmetic copy-paste error in vm_mem_region_move() KVM: Fix out of range accesses to memslots KVM: X86: Micro-optimize IPI fastpath delay KVM: X86: Delay read msr data iff writes ICR MSR KVM: PPC: Book3S HV: Add a capability for enabling secure guests KVM: arm64: GICv4.1: Expose HW-based SGIs in debugfs KVM: arm64: GICv4.1: Allow non-trapping WFI when using HW SGIs ...
2020-04-02Merge tag 'x86-urgent-2020-04-02' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip Pull x86 fix from Ingo Molnar: "A single fix addressing Sparse warnings. <asm/bitops.h> is changed non-trivially to avoid the warnings, but generated code is not supposed to be affected" * tag 'x86-urgent-2020-04-02' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: x86: Fix bitops.h warning with a moved cast
2020-04-02Merge branch 'next-integrity' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/zohar/linux-integrity Pull integrity updates from Mimi Zohar: "Just a couple of updates for linux-5.7: - A new Kconfig option to enable IMA architecture specific runtime policy rules needed for secure and/or trusted boot, as requested. - Some message cleanup (eg. pr_fmt, additional error messages)" * 'next-integrity' of git://git.kernel.org/pub/scm/linux/kernel/git/zohar/linux-integrity: ima: add a new CONFIG for loading arch-specific policies integrity: Remove duplicate pr_fmt definitions IMA: Add log statements for failure conditions IMA: Update KBUILD_MODNAME for IMA files to ima
2020-04-02Merge branch 'akpm' (patches from Andrew)Linus Torvalds
Merge updates from Andrew Morton: "A large amount of MM, plenty more to come. Subsystems affected by this patch series: - tools - kthread - kbuild - scripts - ocfs2 - vfs - mm: slub, kmemleak, pagecache, gup, swap, memcg, pagemap, mremap, sparsemem, kasan, pagealloc, vmscan, compaction, mempolicy, hugetlbfs, hugetlb" * emailed patches from Andrew Morton <akpm@linux-foundation.org>: (155 commits) include/linux/huge_mm.h: check PageTail in hpage_nr_pages even when !THP mm/hugetlb: fix build failure with HUGETLB_PAGE but not HUGEBTLBFS selftests/vm: fix map_hugetlb length used for testing read and write mm/hugetlb: remove unnecessary memory fetch in PageHeadHuge() mm/hugetlb.c: clean code by removing unnecessary initialization hugetlb_cgroup: add hugetlb_cgroup reservation docs hugetlb_cgroup: add hugetlb_cgroup reservation tests hugetlb: support file_region coalescing again hugetlb_cgroup: support noreserve mappings hugetlb_cgroup: add accounting for shared mappings hugetlb: disable region_add file_region coalescing hugetlb_cgroup: add reservation accounting for private mappings mm/hugetlb_cgroup: fix hugetlb_cgroup migration hugetlb_cgroup: add interface for charge/uncharge hugetlb reservations hugetlb_cgroup: add hugetlb_cgroup reservation counter hugetlbfs: Use i_mmap_rwsem to address page fault/truncate race hugetlbfs: use i_mmap_rwsem for more pmd sharing synchronization mm/memblock.c: remove redundant assignment to variable max_addr mm: mempolicy: require at least one nodeid for MPOL_PREFERRED mm: mempolicy: use VM_BUG_ON_VMA in queue_pages_test_walk() ...
2020-04-02Merge tag 'xfs-5.7-merge-8' of git://git.kernel.org/pub/scm/fs/xfs/xfs-linuxLinus Torvalds
Pull xfs updates from Darrick Wong: "There's a lot going on this cycle with cleanups in the log code, the btree code, and the xattr code. We're tightening of metadata validation and online fsck checking, and introducing a common btree rebuilding library so that we can refactor xfs_repair and introduce online repair in a future cycle. We also fixed a few visible bugs -- most notably there's one in getdents that we introduced in 5.6; and a fix for hangs when disabling quotas. This series has been running fstests & other QA in the background for over a week and looks good so far. I anticipate sending a second pull request next week. That batch will change how xfs interacts with memory reclaim; how the log batches and throttles log items; how hard writes near ENOSPC will try to squeeze more space out of the filesystem; and hopefully fix the last of the umount hangs after a catastrophic failure. That should ease a lot of problems when running at the limits, but for now I'm leaving that in for-next for another week to make sure we got all the subtleties right. Summary: - Fix a hard to trigger race between iclog error checking and log shutdown. - Strengthen the AGF verifier. - Ratelimit some of the more spammy error messages. - Remove the icdinode uid/gid members and just use the ones in the vfs inode. - Hold ILOCK across insert/collapse range. - Clean up the extended attribute interfaces. - Clean up the attr flags mess. - Restore PF_MEMALLOC after exiting xfsaild thread to avoid triggering warnings in the process accounting code. - Remove the flexibly-sized array from struct xfs_agfl to eliminate compiler warnings about unaligned pointers and packed structures. - Various macro and typedef removals. - Stale metadata buffers if we decide they're corrupt outside of a verifier. - Check directory data/block/free block owners. - Fix a UAF when aborting inactivation of a corrupt xattr fork. - Teach online scrub to report failed directory and attr name lookups as a metadata corruption instead of a runtime error. - Avoid potential buffer overflows in sysfs files by using scnprintf. - Fix a regression in getdents lookups due to a mistake in pointer arithmetic. - Refactor btree cursor private data structures to use anonymous unions. - Cleanups in the log unmounting code. - Fix a potential mishandling of ENOMEM errors on multi-block directory buffer lookups. - Fix an incorrect test in the block allocation code. - Cleanups and name prefix shortening in the scrub code. - Introduce btree bulk loading code for online repair and scrub. - Fix a quotaoff log item leak (and hang) when the fs goes down midway through a quotaoff operation. - Remove di_version from the incore inode. - Refactor some of the log shutdown checking code. - Record the forcing of the log unmount records in the log force counters. - Fix a longstanding bug where quotacheck would purge the administrator's default quota grace interval and warning limits. - Reduce memory usage when scrubbing directory and xattr trees. - Don't let fsfreeze race with GETFSMAP or online scrub. - Handle bio_add_page failures more gracefully in xlog_write_iclog" * tag 'xfs-5.7-merge-8' of git://git.kernel.org/pub/scm/fs/xfs/xfs-linux: (108 commits) xfs: prohibit fs freezing when using empty transactions xfs: shutdown on failure to add page to log bio xfs: directory bestfree check should release buffers xfs: drop all altpath buffers at the end of the sibling check xfs: preserve default grace interval during quotacheck xfs: remove xlog_state_want_sync xfs: move the ioerror check out of xlog_state_clean_iclog xfs: refactor xlog_state_clean_iclog xfs: remove the aborted parameter to xlog_state_done_syncing xfs: simplify log shutdown checking in xfs_log_release_iclog xfs: simplify the xfs_log_release_iclog calling convention xfs: factor out a xlog_wait_on_iclog helper xfs: merge xlog_cil_push into xlog_cil_push_work xfs: remove the di_version field from struct icdinode xfs: simplify a check in xfs_ioctl_setattr_check_cowextsize xfs: simplify di_flags2 inheritance in xfs_ialloc xfs: only check the superblock version for dinode size calculation xfs: add a new xfs_sb_version_has_v3inode helper xfs: fix unmount hang and memory leak on shutdown during quotaoff xfs: factor out quotaoff intent AIL removal and memory free ...
2020-04-02Merge tag 'vfs-5.7-merge-1' of git://git.kernel.org/pub/scm/fs/xfs/xfs-linuxLinus Torvalds
Pull hibernation fix from Darrick Wong: "Fix a regression where we broke the userspace hibernation driver by disallowing writes to the swap device" * tag 'vfs-5.7-merge-1' of git://git.kernel.org/pub/scm/fs/xfs/xfs-linux: hibernate: Allow uswsusp to write to swap
2020-04-02Merge tag 'iomap-5.7-merge-2' of git://git.kernel.org/pub/scm/fs/xfs/xfs-linuxLinus Torvalds
Pull iomap updates from Darrick Wong: "We're fixing tracepoints and comments in this cycle, so there shouldn't be any surprises here. I anticipate sending a second pull request next week with a single bug fix for readahead, but it's still undergoing QA. Summary: - Fix a broken tracepoint - Fix a broken comment" * tag 'iomap-5.7-merge-2' of git://git.kernel.org/pub/scm/fs/xfs/xfs-linux: iomap: fix comments in iomap_dio_rw iomap: Remove pgoff from tracepoints
2020-04-02Merge branch 'work.dotdot1' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs Pull vfs pathwalk sanitizing from Al Viro: "Massive pathwalk rewrite and cleanups. Several iterations have been posted; hopefully this thing is getting readable and understandable now. Pretty much all parts of pathname resolutions are affected... The branch is identical to what has sat in -next, except for commit message in "lift all calls of step_into() out of follow_dotdot/ follow_dotdot_rcu", crediting Qian Cai for reporting the bug; only commit message changed there." * 'work.dotdot1' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs: (69 commits) lookup_open(): don't bother with fallbacks to lookup+create atomic_open(): no need to pass struct open_flags anymore open_last_lookups(): move complete_walk() into do_open() open_last_lookups(): lift O_EXCL|O_CREAT handling into do_open() open_last_lookups(): don't abuse complete_walk() when all we want is unlazy open_last_lookups(): consolidate fsnotify_create() calls take post-lookup part of do_last() out of loop link_path_walk(): sample parent's i_uid and i_mode for the last component __nd_alloc_stack(): make it return bool reserve_stack(): switch to __nd_alloc_stack() pick_link(): take reserving space on stack into a new helper pick_link(): more straightforward handling of allocation failures fold path_to_nameidata() into its only remaining caller pick_link(): pass it struct path already with normal refcounting rules fs/namei.c: kill follow_mount() non-RCU analogue of the previous commit helper for mount rootwards traversal follow_dotdot(): be lazy about changing nd->path follow_dotdot_rcu(): be lazy about changing nd->path follow_dotdot{,_rcu}(): massage loops ...
2020-04-02x86/kvm: fix a missing-prototypes "vmread_error"Qian Cai
The commit 842f4be95899 ("KVM: VMX: Add a trampoline to fix VMREAD error handling") removed the declaration of vmread_error() causes a W=1 build failure with KVM_WERROR=y. Fix it by adding it back. arch/x86/kvm/vmx/vmx.c:359:17: error: no previous prototype for 'vmread_error' [-Werror=missing-prototypes] asmlinkage void vmread_error(unsigned long field, bool fault) ^~~~~~~~~~~~ Signed-off-by: Qian Cai <cai@lca.pw> Message-Id: <20200402153955.1695-1-cai@lca.pw> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2020-04-02Merge branches 'misc' and 'devel-stable' into for-linusRussell King
2020-04-02Merge branch 'for-linus' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/ebiederm/user-namespace Pull exec/proc updates from Eric Biederman: "This contains two significant pieces of work: the work to sort out proc_flush_task, and the work to solve a deadlock between strace and exec. Fixing proc_flush_task so that it no longer requires a persistent mount makes improvements to proc possible. The removal of the persistent mount solves an old regression that that caused the hidepid mount option to only work on remount not on mount. The regression was found and reported by the Android folks. This further allows Alexey Gladkov's work making proc mount options specific to an individual mount of proc to move forward. The work on exec starts solving a long standing issue with exec that it takes mutexes of blocking userspace applications, which makes exec extremely deadlock prone. For the moment this adds a second mutex with a narrower scope that handles all of the easy cases. Which makes the tricky cases easy to spot. With a little luck the code to solve those deadlocks will be ready by next merge window" * 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/ebiederm/user-namespace: (25 commits) signal: Extend exec_id to 64bits pidfd: Use new infrastructure to fix deadlocks in execve perf: Use new infrastructure to fix deadlocks in execve proc: io_accounting: Use new infrastructure to fix deadlocks in execve proc: Use new infrastructure to fix deadlocks in execve kernel/kcmp.c: Use new infrastructure to fix deadlocks in execve kernel: doc: remove outdated comment cred.c mm: docs: Fix a comment in process_vm_rw_core selftests/ptrace: add test cases for dead-locks exec: Fix a deadlock in strace exec: Add exec_update_mutex to replace cred_guard_mutex exec: Move exec_mmap right after de_thread in flush_old_exec exec: Move cleanup of posix timers on exec out of de_thread exec: Factor unshare_sighand out of de_thread and call it separately exec: Only compute current once in flush_old_exec pid: Improve the comment about waiting in zap_pid_ns_processes proc: Remove the now unnecessary internal mount of proc uml: Create a private mount of proc for mconsole uml: Don't consult current to find the proc_mnt in mconsole_proc proc: Use a list of inodes to flush from proc ...
2020-04-02include/linux/huge_mm.h: check PageTail in hpage_nr_pages even when !THPMatthew Wilcox (Oracle)
It's even more important to check that we don't have a tail page when calling hpage_nr_pages() when THP are disabled. Signed-off-by: Matthew Wilcox (Oracle) <willy@infradead.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Reviewed-by: Christoph Hellwig <hch@lst.de> Acked-by: Kirill A. Shutemov <kirill.shutemov@linux.intel.com> Cc: Aneesh Kumar K.V <aneesh.kumar@linux.vnet.ibm.com> Cc: Pankaj Gupta <pankaj.gupta.linux@gmail.com> Link: http://lkml.kernel.org/r/20200318140253.6141-4-willy@infradead.org Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2020-04-02mm/hugetlb: fix build failure with HUGETLB_PAGE but not HUGEBTLBFSChristophe Leroy
When CONFIG_HUGETLB_PAGE is set but not CONFIG_HUGETLBFS, the following build failure is encoutered: In file included from arch/powerpc/mm/fault.c:33:0: include/linux/hugetlb.h: In function 'hstate_inode': include/linux/hugetlb.h:477:9: error: implicit declaration of function 'HUGETLBFS_SB' [-Werror=implicit-function-declaration] return HUGETLBFS_SB(i->i_sb)->hstate; ^ include/linux/hugetlb.h:477:30: error: invalid type argument of '->' (have 'int') return HUGETLBFS_SB(i->i_sb)->hstate; ^ Gate hstate_inode() with CONFIG_HUGETLBFS instead of CONFIG_HUGETLB_PAGE. Fixes: a137e1cc6d6e ("hugetlbfs: per mount huge page sizes") Reported-by: kbuild test robot <lkp@intel.com> Signed-off-by: Christophe Leroy <christophe.leroy@c-s.fr> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Reviewed-by: Mike Kravetz <mike.kravetz@oracle.com> Cc: Baoquan He <bhe@redhat.com> Cc: Nishanth Aravamudan <nacc@us.ibm.com> Cc: Nick Piggin <npiggin@suse.de> Cc: Adam Litke <agl@us.ibm.com> Cc: Andi Kleen <ak@suse.de> Link: http://lkml.kernel.org/r/7e8c3a3c9a587b9cd8a2f146df32a421b961f3a2.1584432148.git.christophe.leroy@c-s.fr Link: https://patchwork.ozlabs.org/patch/1255548/#2386036 Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2020-04-02selftests/vm: fix map_hugetlb length used for testing read and writeChristophe Leroy
Commit fa7b9a805c79 ("tools/selftest/vm: allow choosing mem size and page size in map_hugetlb") added the possibility to change the size of memory mapped for the test, but left the read and write test using the default value. This is unnoticed when mapping a length greater than the default one, but segfaults otherwise. Fix read_bytes() and write_bytes() by giving them the real length. Also fix the call to munmap(). Fixes: fa7b9a805c79 ("tools/selftest/vm: allow choosing mem size and page size in map_hugetlb") Signed-off-by: Christophe Leroy <christophe.leroy@c-s.fr> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Reviewed-by: Leonardo Bras <leonardo@linux.ibm.com> Cc: Michael Ellerman <mpe@ellerman.id.au> Cc: Shuah Khan <shuah@kernel.org> Cc: <stable@vger.kernel.org> Link: http://lkml.kernel.org/r/9a404a13c871c4bd0ba9ede68f69a1225180dd7e.1580978385.git.christophe.leroy@c-s.fr Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2020-04-02mm/hugetlb: remove unnecessary memory fetch in PageHeadHuge()Vlastimil Babka
Commit f1e61557f023 ("mm: pack compound_dtor and compound_order into one word in struct page") changed compound_dtor from a pointer to an array index in order to pack it. To check if page has the hugeltbfs compound_dtor, we can just compare the index directly without fetching the function pointer. Said commit did that with PageHuge() and we can do the same with PageHeadHuge() to make the code a bit smaller and faster. Signed-off-by: Vlastimil Babka <vbabka@suse.cz> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Reviewed-by: Mike Kravetz <mike.kravetz@oracle.com> Acked-by: David Rientjes <rientjes@google.com> Acked-by: Kirill A. Shutemov <kirill.shutemov@linux.intel.com> Cc: Neha Agarwal <nehaagarwal@google.com> Link: http://lkml.kernel.org/r/20200311172440.6988-1-vbabka@suse.cz Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2020-04-02mm/hugetlb.c: clean code by removing unnecessary initializationMateusz Nosek
Previously variable 'check_addr' was initialized, but was not read later before reassigning. So the initialization can be removed. Signed-off-by: Mateusz Nosek <mateusznosek0@gmail.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Reviewed-by: Andrew Morton <akpm@linux-foundation.org> Reviewed-by: Mike Kravetz <mike.kravetz@oracle.com> Link: http://lkml.kernel.org/r/20200303212354.25226-1-mateusznosek0@gmail.com Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2020-04-02hugetlb_cgroup: add hugetlb_cgroup reservation docsMina Almasry
Add docs for how to use hugetlb_cgroup reservations, and their behavior. Signed-off-by: Mina Almasry <almasrymina@google.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Cc: David Rientjes <rientjes@google.com> Cc: Greg Thelen <gthelen@google.com> Cc: Mike Kravetz <mike.kravetz@oracle.com> Cc: Sandipan Das <sandipan@linux.ibm.com> Cc: Shakeel Butt <shakeelb@google.com> Cc: Shuah Khan <shuah@kernel.org> Link: http://lkml.kernel.org/r/20200211213128.73302-9-almasrymina@google.com Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2020-04-02hugetlb_cgroup: add hugetlb_cgroup reservation testsMina Almasry
The tests use both shared and private mapped hugetlb memory, and monitors the hugetlb usage counter as well as the hugetlb reservation counter. They test different configurations such as hugetlb memory usage via hugetlbfs, or MAP_HUGETLB, or shmget/shmat, and with and without MAP_POPULATE. Also add test for hugetlb reservation reparenting, since this is a subtle issue. Signed-off-by: Mina Almasry <almasrymina@google.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Tested-by: Sandipan Das <sandipan@linux.ibm.com> [powerpc64] Acked-by: Mike Kravetz <mike.kravetz@oracle.com> Cc: Sandipan Das <sandipan@linux.ibm.com> Cc: David Rientjes <rientjes@google.com> Cc: Greg Thelen <gthelen@google.com> Cc: Shakeel Butt <shakeelb@google.com> Cc: Shuah Khan <shuah@kernel.org> Link: http://lkml.kernel.org/r/20200211213128.73302-8-almasrymina@google.com Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2020-04-02