Pull ARM DT updates from Arnd Bergmann:
 "Lots of changes as usual, so I'm trying to be brief here. Most of the
  new hardware support has the respective driver changes merged through
  other trees or has had it available for a while, so this is where
  things come together.

  We get a DT descriptions for a couple of new SoCs, all of them
  variants of other chips we already support, and usually coming with a
  new evaluation board:

   - Oxford semiconductor (now Broadcom) OX820 SoC for NAS devices
   - Qualcomm MDM9615 LTE baseband
   - NXP imx6ull, the latest and smallest i.MX6 application processor variant
   - Renesas RZ/G (r8a7743 and r8a7745) application processors
   - Rockchip PX3, a variant of the rk3188 chip used in Android tablets
   - Rockchip rk1108 single-core application processor
   - ST stm32f746 Cortex-M7 based microcontroller
   - TI DRA71x automotive processors

  These are commercially available consumer platforms we now support:

   - Motorola Droid 4 (xt894) mobile phone
   - Rikomagic MK808 Android TV stick based on Rockchips rx3066
   - Cloud Engines PogoPlug v3 based on OX820
   - Various Broadcom based wireless devices:
      - Netgear R8500 router
      - Tenda AC9 router
      - TP-LINK Archer C9 V1
      - Luxul XAP-1510 Access point
   - Turris Omnia open hardware router based on Armada 385

  And a couple of new boards targeted at developers, makers or
  industrial integration:

   - Macnica Sodia development platform for Altera socfpga (Cyclone V)
   - MicroZed board based on Xilinx Zynq FPGA platforms
   - TOPEET itop/elite based on exynos4412
   - WP8548 MangOH Open Hardware platform for IOT, based on Qualcomm MDM9615
   - NextThing CHIP Pro gadget
   - NanoPi M1 development board
   - AM571x-IDK industrial board based on TI AM5718
   - i.MX6SX UDOO Neo
   - Boundary Devices Nitrogen6_SOM2 (i.MX6)
   - Engicam i.CoreM6
   - Grinn i.MX6UL liteSOM/liteBoard
   - Toradex Colibri iMX6 module

  Other changes:

   - added peripherals on renesas, davinci, stm32f429, uniphier, sti,
     mediatek, integrator, at91, imx, vybrid, ls1021a, omap, qualcomm,
     mvebu, allwinner, broadcom, exynos, zynq

   - Continued fixes for W=1 dtc warnings

   - The old STiH415/416 SoC support gets removed, these never made it
     into products and have served their purpose in the kernel as a
     template for teh newer chips from ST

   - The exynos4415 dtsi file is removed as nothing uses it.

   - Intel PXA25x can now be booted using devicetree"

* tag 'armsoc-dt' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc: (422 commits)
  arm: dts: zynq: Add MicroZed board support
  ARM: dts: da850: enable high speed for mmc
  ARM: dts: da850: Add node for pullup/pulldown pinconf
  ARM: dts: da850: enable memctrl and mstpri nodes per board
  ARM: dts: da850-lcdk: Add ethernet0 alias to DT
  ARM: dts: artpec: add pcie support
  ARM: dts: add support for Turris Omnia
  devicetree: Add vendor prefix for CZ.NIC
  ARM: dts: berlin2q-marvell-dmp: fix typo in chosen node
  ARM: dts: berlin2q-marvell-dmp: fix regulators' name
  ARM: dts: Add xo to sdhc clock node on qcom platforms
  ARM: dts: r8a7794: Add device node for PRR
  ARM: dts: r8a7793: Add device node for PRR
  ARM: dts: r8a7792: Add device node for PRR
  ARM: dts: r8a7791: Add device node for PRR
  ARM: dts: r8a7790: Add device node for PRR
  ARM: dts: r8a7779: Add device node for PRR
  ARM: dts: r8a73a4: Add device node for PRR
  ARM: dts: sk-rzg1e: add Ether support
  ARM: dts: sk-rzg1e: initial device tree
  ...

Pull ARM SoC 64-bit updates from Arnd Bergmann:
 "Changes to platform code for 64-bit ARM platforms. We are not adding
  any new platforms that require code or Kconfig changes this time, so
  it's basically just defconfig changes to enable support for more
  drivers used on the existing platforms.

  This is mainly interesting for the Raspberry Pi 3, which should now
  work much better with the default build"

* tag 'armsoc-arm64' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc:
  arm64: defconfig: drop GPIO_SYSFS on multiplatforms
  arm64: defconfig: Do not lower CONFIG_LOG_BUF_SHIFT
  arm64: defconfig: allow rk3399-based boards to boot from mmc and usb
  arm64: defconfig: enable RK808 components
  arm64: defconfig: enable I2C and DW MMC controller on rockchip platform
  arm64: defconfig: Enable Tegra186 SoC
  ARM64: configs: Activate Internal PHY for Meson GXL
  arm64: qcom: enable GPIOLIB in Kconfig
  arm64: configs: enable configs for msm899(2/4) basic support
  ARM64: bcm2835: add thermal driver to default config
  ARM64: configs: Add Platform MHU in defconfig
  MAINTAINERS: Update Broadcom Vulcan maintainer email
  arm64: defconfig: enable EEPROM_AT25 config option
  arm64: Enable HIBERNATION in defconfig
  arm64: defconfig: Enable DRM DU and V4L2 FCP + VSP modules
  ARM64: defconfig: Enable MMC related configs
  arm64: Add BCM2835 (Raspberry Pi 3) support to the defconfig

Pull ARM SoC defconfig updates from Arnd Bergmann:
 "Defconfig additions, removals, etc. Most of these are small changes
  adding the options for newly upstreamed drivers, or drivers needed for
  new board support.

  Bartlomiej Zolnierkiewicz has done a series of patches reducing the
  use of CONFIG_IDE from 19 to 3 in favor of CONFIG_ATA.

  Overall more patches than usual, but nothing big"

* tag 'armsoc-defconfig' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc: (54 commits)
  ARM: davinci_all_defconfig: Enable da8xx usb otg
  ARM: defconfig: drop GPIO_SYSFS on multiplatforms
  ARM: multi_v7_defconfig: enable STMicroelectronics HVA driver
  ARM: configs: Add new config fragment to change RAM start point
  ARM: davinci_all_defconfig: Enable OHCI as module
  ARM: defconfig: turn on the DT cpufreq for Integrator
  ARM: omap2plus_defconfig: Run make savedefconfig to save some space
  ARM: davinci_all_defconfig: add missing options for systemd
  ARM: davinci_all_defconfig: enable the mstpri and ddrctl drivers
  ARM: bcm2835: add thermal driver to default config
  ARM: omap2plus_defconfig: Enable LP873X support
  ARM: omap2plus_defconfig: Enable REGULATOR_GPIO
  ARM: omap2plus_defconfig: Enable TOUCHSCREEN_TSC2004
  ARM: socfpga_defconfig: enable FS configs to support Angstrom filesystem
  ARM: config: Enable GPIO Key driver in stm32_defconfig
  ARM: tegra: Enable GMI driver in default configuration
  ARM: tegra: Enable SGTL5000 audio
  ARM: tegra: Update default configuration for v4.9-rc1
  ARM: socfpga: updates for socfpga_defconfig
  ARM: davinci_all_defconfig: enable LED default-on trigger
  ...

Pull ARM SoC platform updates from Arnd Bergmann:
 "These are updates for platform specific code on 32-bit ARM machines,
  essentially anything that can not (yet) be expressed using DT files.

  Noteworthy changes include:

   - Added support for the TI DRA71x family of SoCs in mach-omap2, this
     is an new variant of the the DRA72x/DRA74x automotive infotainment
     chips we already supported for a while.

   - Added support for the ST STM32F746 SoC, the first Cortex-M7 based
     microcontroller we support, related to the smaller STM32F4 family.

   - Renesas adds support for r8a7743 and r8a7745 in mach-shmobile, see
     http://elinux.org/RZ-G

   - SMP is now supported on the OX820 platform

   - A lot of code in mach-omap2 gets removed as a follow-up to removing
     support for board files in the previous release

   - Davinci has some new work to improve USB support

   - For i.MX, the performance monitor now supports profiling the memory
     controller using 'perf'"

* tag 'armsoc-soc' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc: (95 commits)
  ARM: davinci: da830-evm: use gpio descriptor for mmc pins
  ARM: davinci: da850-evm: use gpio descriptor for mmc pins
  ARM: davinci: hawk: use gpio descriptor for mmc pins
  ARM: ARTPEC-6: add select MFD_SYSCON to MACH_ARTPEC6
  ARM: davinci: da8xx: Fix ohci device name
  ARM: oxnas: Add OX820 config and makefile entry
  ARM: oxnas: Add OX820 SMP support
  ARM: davinci: PM: fix build when da850 not compiled in
  ARM: orion5x: remove legacy support of ls-chl
  ARM: integrator: drop EBI access use syscon
  ARM: BCM5301X: Add back handler ignoring external imprecise aborts
  ARM: davinci: PM: support da8xx DT platforms
  ARM: davinci: PM: cleanup: remove references to pdata
  ARM: davinci: PM: rework init, remove platform device
  ARM: Kconfig: Introduce MACH_STM32F746 flag
  ARM: mach-stm32: Add a new SOC - STM32F746
  ARM: shmobile: document SK-RZG1E board
  ARM: shmobile: r8a7745: basic SoC support
  ARM: imx: mach-imx6ul: add imx6ull support
  ARM: zynq: Reserve correct amount of non-DMA RAM
  ...

Pull ARM SoC non-urgent fixes from Arnd Bergmann:
 "As usual, we queue up a few fixes that don't seem urgent enough to go
  in through -rc, or that just came a little too late given their size.

  The zx fixes make the platform finally boot on real hardware, the
  davinci and imx31 get the DT support working better for some of the
  machines that are still normally used with classic board files. One
  tegra fix is important for new bootloader versions, but the bug has
  been around for a while without anyone noticing.

  The other changes are mostly cosmetic"

* tag 'armsoc-fixes-nc' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc: (22 commits)
  arm64: tegra: Add missing Smaug revision
  arm64: tegra: Add VDD_GPU regulator to Jetson TX1
  arm64: dts: zte: clean up gic-v3 redistributor properties
  arm64: dts: zx: Fix gic GICR property
  bus: vexpress-config: fix device reference leak
  soc: ti: qmss: fix the case when !SMP
  ARM: lpc32xx: drop duplicate header device.h
  ARM: ixp4xx: drop duplicate header gpio.h
  ARM: socfpga: fix spelling mistake in error message
  ARM: dts: imx6q-cm-fx6: fix fec pinctrl
  ARM: dts: imx7d-pinfunc: fix UART pinmux defines
  ARM: dts: imx6qp: correct LDB clock inputs
  ARM: OMAP2+: pm-debug: Use seq_putc() in two functions
  ARM: OMAP2+: Remove the omapdss_early_init_of() function
  mfd: tps65217: Fix mismatched interrupt number
  ARM: zx: Fix error handling
  ARM: spear: Fix error handling
  ARM: davinci: da850: Fix pwm name matching
  ARM: clk: imx31: properly init clocks for machines with DT
  clk: imx31: fix rewritten input argument of mx31_clocks_init()
  ...

Merge tag 'linux-kselftest-4.10-rc1-update' of git://git.kernel.org/pub/scm/linux/kernel/git/shuah/linux-kselftest

Pull kselftest updates from Shuah Khan:
 "This update consists of:

   - new tests to exercise the Sync Kernel Infrastructure. These tests
     are part of a battery of Android libsync tests and are re-written
     to test the new sync user-space interfaces from Emilio López, and
     Gustavo Padovan.

   - test to run hw-independent mock tests for i915.ko from Chris Wilson

   - a new gpio test case from Bamvor Jian Zhang

   - missing gitignore additions"

* tag 'linux-kselftest-4.10-rc1-update' of git://git.kernel.org/pub/scm/linux/kernel/git/shuah/linux-kselftest:
  selftest/gpio: add gpio test case
  selftest: sync: improve assert() failure message
  kselftests: Exercise hw-independent mock tests for i915.ko
  selftests: add missing gitignore files/dirs
  selftests: add missing set-tz to timers .gitignore
  selftest: sync: stress test for merges
  selftest: sync: stress consumer/producer test
  selftest: sync: stress test for parallelism
  selftest: sync: wait tests for sw_sync framework
  selftest: sync: merge tests for sw_sync framework
  selftest: sync: fence tests for sw_sync framework
  selftest: sync: basic tests for sw_sync framework

Pull ARC updates from Vineet Gupta:
 "These are mostly timer/clocksource driver updates which were
  Reviewed/Acked by Daniel but had to be merged via ARC tree due to
  dependencies.

  I will follow up with another pull request with actual ARC changes
  early next week !

  Summary:

   - Moving ARC timer driver into drivers/clocksource

   - EZChip timer driver updates [Noam]

   - ARC AXS103 and HAPS platform updates [Alexey]"

* tag 'arc-4.10-rc1-part1' of git://git.kernel.org/pub/scm/linux/kernel/git/vgupta/arc:
  ARC: axs10x: really enable ARC PGU
  ARC: rename Zebu platform support to HAPS
  clocksource: nps: avoid maybe-uninitialized warning
  clocksource: Add clockevent support to NPS400 driver
  clocksource: update "fn" at CLOCKSOURCE_OF_DECLARE() of nps400 timer
  soc: Support for NPS HW scheduling
  clocksource: import ARC timer driver
  ARC: breakout timer include code into separate header ...
  ARC: move mcip.h into include/soc and adjust the includes
  ARC: breakout aux handling into a separate header
  ARC: time: move time_init() out of the driver
  ARC: timer: gfrc, rtc: build under same option (64-bit timers)
  ARC: timer: gfrc, rtc: Read BCR to detect whether hardware exists ...
  ARC: timer: gfrc, rtc: deuglify big endian code

Pull tracing updates from Steven Rostedt:
 "This release has a few updates:

   - STM can hook into the function tracer
   - Function filtering now supports more advance glob matching
   - Ftrace selftests updates and added tests
   - Softirq tag in traces now show only softirqs
   - ARM nop added to non traced locations at compile time
   - New trace_marker_raw file that allows for binary input
   - Optimizations to the ring buffer
   - Removal of kmap in trace_marker
   - Wakeup and irqsoff tracers now adhere to the set_graph_notrace file
   - Other various fixes and clean ups"

* tag 'trace-v4.10' of git://git.kernel.org/pub/scm/linux/kernel/git/rostedt/linux-trace: (42 commits)
  selftests: ftrace: Shift down default message verbosity
  kprobes/trace: Fix kprobe selftest for newer gcc
  tracing/kprobes: Add a helper method to return number of probe hits
  tracing/rb: Init the CPU mask on allocation
  tracing: Use SOFTIRQ_OFFSET for softirq dectection for more accurate results
  tracing/fgraph: Have wakeup and irqsoff tracers ignore graph functions too
  fgraph: Handle a case where a tracer ignores set_graph_notrace
  tracing: Replace kmap with copy_from_user() in trace_marker writing
  ftrace/x86_32: Set ftrace_stub to weak to prevent gcc from using short jumps to it
  tracing: Allow benchmark to be enabled at early_initcall()
  tracing: Have system enable return error if one of the events fail
  tracing: Do not start benchmark on boot up
  tracing: Have the reg function allow to fail
  ring-buffer: Force rb_end_commit() and rb_set_commit_to_write() inline
  ring-buffer: Froce rb_update_write_stamp() to be inlined
  ring-buffer: Force inline of hotpath helper functions
  tracing: Make __buffer_unlock_commit() always_inline
  tracing: Make tracepoint_printk a static_key
  ring-buffer: Always inline rb_event_data()
  ring-buffer: Make rb_reserve_next_event() always inlined
  ...

Pull orangefs updates from Mike Marshall:
 "Two small fixes sent in by other developers:

   - axe some dead code (Christophe Jaillet)

   - fix memory leak (Colin Ian King, found by Coverity)"

* tag 'for-linus-4.10-ofs1' of git://git.kernel.org/pub/scm/linux/kernel/git/hubcap/linux:
  orangefs: Axe some dead code
  orangefs: fix memory leak of string 'new' on exit path

Pull ubifs updates from Richard Weinberger:

 - file encryption for UBIFS using the fscrypt framework

 - a fix to honor the dirty_writeback_interval sysctl

 - removal of dead code

* tag 'upstream-4.10-rc1' of git://git.infradead.org/linux-ubifs: (30 commits)
  ubifs: Initialize fstr_real_len
  ubifs: Use fscrypt ioctl() helpers
  ubifs: Use FS_CFLG_OWN_PAGES
  ubifs: Raise write version to 5
  ubifs: Implement UBIFS_FLG_ENCRYPTION
  ubifs: Implement UBIFS_FLG_DOUBLE_HASH
  ubifs: Use a random number for cookies
  ubifs: Add full hash lookup support
  ubifs: Rename tnc_read_node_nm
  ubifs: Add support for encrypted symlinks
  ubifs: Implement encrypted filenames
  ubifs: Make r5 hash binary string aware
  ubifs: Relax checks in ubifs_validate_entry()
  ubifs: Implement encrypt/decrypt for all IO
  ubifs: Constify struct inode pointer in ubifs_crypt_is_encrypted()
  ubifs: Introduce new data node field, compr_size
  ubifs: Enforce crypto policy in mmap
  ubifs: Massage assert in ubifs_xattr_set() wrt. fscrypto
  ubifs: Preload crypto context in ->lookup()
  ubifs: Enforce crypto policy in ->link and ->rename
  ...

Merge tag 'platform-drivers-x86-v4.10-1' of git://git.infradead.org/users/dvhart/linux-platform-drivers-x86

Pull x86 platform driver updates from Darrent Hart:
 "Introduce one new driver for Mellanox platforms. Add support for
  various new models to existing drivers via quirks, hotkeys, etc.
  Significant updates to intel_pmc_core in support of Kabylake and
  Sunrise Point PCH power management debug. Some cleanup and refactoring
  across various drivers.

  Detailed summary:

  dell-laptop:
   - Use brightness_set_blocking for kbd_led_level_set

  thinkpad_acpi:
   - Initialize local in_tablet_mode and type
   - Fix old style declaration GCC warning
   - Adding new hotkey ID for Lenovo thinkpad
   - Add support for X1 Yoga (2016) Tablet Mode
   - Move tablet detection into separate function

  asus-nb-wmi:
   - Add X45U quirk
   - Make use of dmi->ident

  asus-wmi:
   - Set specified XUSB2PR value for X550LB

  intel_mid_thermal:
   - Fix suspend handlers unused warning

  intel-vbtn:
   - Switch to use devm_input_allocate_device

  dell-wmi:
   - Add events created by Dell Rugged 2-in-1s
   - Adjust wifi catcher to emit KEY_WLAN

  intel_pmc_core:
   - Add KBL CPUID support
   - Add LTR IGNORE debug feature
   - Add MPHY PLL clock gating status
   - ModPhy core lanes pg status
   - Add PCH IP Power Gating Status
   - Fix PWRMBASE mask and mmio reg len

  acer-wmi:
   - Only supports AMW0_GUID1 on acer family

  mlx-platform:
   - Introduce support for Mellanox hotplug driver

  platform/x86:
   - Use ACPI_FAILURE at appropriate places"

* tag 'platform-drivers-x86-v4.10-1' of git://git.infradead.org/users/dvhart/linux-platform-drivers-x86: (22 commits)
  platform/x86: thinkpad_acpi: Initialize local in_tablet_mode and type
  platform/x86: dell-laptop: Use brightness_set_blocking for kbd_led_level_set
  platform/x86: thinkpad_acpi: Fix old style declaration GCC warning
  platform/x86: thinkpad_acpi: Adding new hotkey ID for Lenovo thinkpad
  platform/x86: thinkpad_acpi: Add support for X1 Yoga (2016) Tablet Mode
  platform/x86: thinkpad_acpi: Move tablet detection into separate function
  platform/x86: asus-nb-wmi.c: Add X45U quirk
  platform/x86: asus-nb-wmi: Make use of dmi->ident
  platform/x86: asus-wmi: Set specified XUSB2PR value for X550LB
  platform/x86: intel_mid_thermal: Fix suspend handlers unused warning
  platform/x86: intel-vbtn: Switch to use devm_input_allocate_device
  platform/x86: Use ACPI_FAILURE at appropriate places
  platform/x86: dell-wmi: Add events created by Dell Rugged 2-in-1s
  platform/x86: dell-wmi: Adjust wifi catcher to emit KEY_WLAN
  platform/x86: intel_pmc_core: Add KBL CPUID support
  platform/x86: intel_pmc_core: Add LTR IGNORE debug feature
  platform/x86: intel_pmc_core: Add MPHY PLL clock gating status
  platform/x86: intel_pmc_core: ModPhy core lanes pg status
  platform/x86: intel_pmc_core: Add PCH IP Power Gating Status
  platform/x86: intel_pmc_core: Fix PWRMBASE mask and mmio reg len
  ...

Pull i2c updates from Wolfram Sang:

 - the first series of making i2c_device_id optional instead of
   mandatory (in favor of alternatives like of_device_id).

   This involves adding a new probe callback (probe_new) which removes
   some peculiarities I2C had for a long time now. The new probe is
   matching the other subsystems now and the old one will be removed
   once all users are converted. It is expected to take a while but
   there is ongoing interest in that.

 - SMBus Host Notify introduced 4.9 got refactored. They are now using
   interrupts instead of the alert callback which solves multiple
   issues.

 - new drivers for iMX LowPower I2C, Mellanox CPLD and its I2C mux

 - significant refactoring for bcm2835 driver

 - the usual set of driver updates and improvements

* 'i2c/for-4.10' of git://git.kernel.org/pub/scm/linux/kernel/git/wsa/linux: (46 commits)
  i2c: fsl-lpi2c: read lpi2c fifo size in probe()
  i2c: octeon: thunderx: Remove double-check after interrupt
  i2c: octeon: thunderx: TWSI software reset in recovery
  i2c: cadence: Allow Cadence I2C to be selected for Cadence Xtensa CPUs
  i2c: sh_mobile: Add per-Generation fallback bindings
  i2c: rcar: Add per-Generation fallback bindings
  i2c: imx-lpi2c: add low power i2c bus driver
  dt-bindings: i2c: imx-lpi2c: add devicetree bindings
  i2c: designware-pcidrv: Add 10bit address feature to medfield/merrifield
  i2c: pxa: Add support for the I2C units found in Armada 3700
  i2c: pxa: Add definition of fast and high speed modes via the regs layout
  dt-bindings: i2c: pxa: Update the documentation for the Armada 3700
  i2c: qup: support SMBus block read
  i2c: qup: add ACPI support
  i2c: designware: Consolidate default functionality bits
  i2c: i2c-mux-gpio: update mux with gpiod_set_array_value_cansleep
  i2c: mux: pca954x: Add ACPI support for pca954x
  i2c: use an IRQ to report Host Notify events, not alert
  i2c: i801: remove SMBNTFDDAT reads as they always seem to return 0
  i2c: i801: use the BIT() macro for FEATURES_* also
  ...

Pull PCI updates from Bjorn Helgaas:
 "PCI changes:

   - add support for PCI on ARM64 boxes with ACPI. We already had this
     for theoretical spec-compliant hardware; now we're adding quirks
     for the actual hardware (Cavium, HiSilicon, Qualcomm, X-Gene)

   - add runtime PM support for hotplug ports

   - enable runtime suspend for Intel UHCI that uses platform-specific
     wakeup signaling

   - add yet another host bridge registration interface. We hope this is
     extensible enough to subsume the others

   - expose device revision in sysfs for DRM

   - to avoid device conflicts, make sure any VF BAR updates are done
     before enabling the VF

   - avoid unnecessary link retrains for ASPM

   - allow INTx masking on Mellanox devices that support it

   - allow access to non-standard VPD for Chelsio devices

   - update Broadcom iProc support for PAXB v2, PAXC v2, inbound DMA,
     etc

   - update Rockchip support for max-link-speed

   - add NVIDIA Tegra210 support

   - add Layerscape LS1046a support

   - update R-Car compatibility strings

   - add Qualcomm MSM8996 support

   - remove some uninformative bootup messages"

* tag 'pci-v4.10-changes' of git://git.kernel.org/pub/scm/linux/kernel/git/helgaas/pci: (115 commits)
  PCI: Enable access to non-standard VPD for Chelsio devices (cxgb3)
  PCI: Expand "VPD access disabled" quirk message
  PCI: pciehp: Remove loading message
  PCI: hotplug: Remove hotplug core message
  PCI: Remove service driver load/unload messages
  PCI/AER: Log AER IRQ when claiming Root Port
  PCI/AER: Log errors with PCI device, not PCIe service device
  PCI/AER: Remove unused version macros
  PCI/PME: Log PME IRQ when claiming Root Port
  PCI/PME: Drop unused support for PMEs from Root Complex Event Collectors
  PCI: Move config space size macros to pci_regs.h
  x86/platform/intel-mid: Constify mid_pci_platform_pm
  PCI/ASPM: Don't retrain link if ASPM not possible
  PCI: iproc: Skip check for legacy IRQ on PAXC buses
  PCI: pciehp: Leave power indicator on when enabling already-enabled slot
  PCI: pciehp: Prioritize data-link event over presence detect
  PCI: rcar: Add gen3 fallback compatibility string for pcie-rcar
  PCI: rcar: Use gen2 fallback compatibility last
  PCI: rcar-gen2: Use gen2 fallback compatibility last
  PCI: rockchip: Move the deassert of pm/aclk/pclk after phy_init()
  ..

linux-next reported in_tablet_mode and type may be used uninitialized
after:

b3180028 ("platform/x86: thinkpad_acpi: Move tablet detection into separate function")

This turns out to be a false positive as the pr_info call cannot be
reached if tp_features.hotkey_tablet (global scope) is 0, and
in_tablet_mode and type are assigned in both places
tp_features.hotkey_tablet is assigned.

Regardless, to make it explicit and avoid further reports, initialize
in_tablet_mode to 0 and type to NULL.
Signed-off-by: Darren Hart <dvhart@linux.intel.com>
Acked-by: Henrique de Moraes Holschuh <hmh@hmh.eng.br>
Cc: Lyude <lyude@redhat.com>

Pull IOMMU updates from Joerg Roedel:
 "These changes include:

   - support for the ACPI IORT table on ARM systems and patches to make
     the ARM-SMMU driver make use of it

   - conversion of the Exynos IOMMU driver to device dependency links
     and implementation of runtime pm support based on that conversion

   - update the Mediatek IOMMU driver to use the new struct
     device->iommu_fwspec member

   - implementation of dma_map/unmap_resource in the generic ARM
     dma-iommu layer

   - a number of smaller fixes and improvements all over the place"

* tag 'iommu-updates-v4.10' of git://git.kernel.org/pub/scm/linux/kernel/git/joro/iommu: (44 commits)
  ACPI/IORT: Make dma masks set-up IORT specific
  iommu/amd: Missing error code in amd_iommu_init_device()
  iommu/s390: Drop duplicate header pci.h
  ACPI/IORT: Introduce iort_iommu_configure
  ACPI/IORT: Add single mapping function
  ACPI/IORT: Replace rid map type with type mask
  iommu/arm-smmu: Add IORT configuration
  iommu/arm-smmu: Split probe functions into DT/generic portions
  iommu/arm-smmu-v3: Add IORT configuration
  iommu/arm-smmu-v3: Split probe functions into DT/generic portions
  ACPI/IORT: Add support for ARM SMMU platform devices creation
  ACPI/IORT: Add node match function
  ACPI: Implement acpi_dma_configure
  iommu/arm-smmu-v3: Convert struct device of_node to fwnode usage
  iommu/arm-smmu: Convert struct device of_node to fwnode usage
  iommu: Make of_iommu_set/get_ops() DT agnostic
  ACPI/IORT: Add support for IOMMU fwnode registration
  ACPI/IORT: Introduce linker section for IORT entries probing
  ACPI: Add FWNODE_ACPI_STATIC fwnode type
  iommu/arm-smmu: Set SMTNMB_TLBEN in ACR to enable caching of bypass entries
  ...

Get rid of this warning:

  drivers/infiniband/sw/rdmavt/cq.c: In function ‘rvt_cq_exit’:
  drivers/infiniband/sw/rdmavt/cq.c:542:2: warning: ‘worker’ may be used uninitialized in this function [-Wmaybe-uninitialized]
    kthread_destroy_worker(worker);
    ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

by fixing the function to actually work.

Fixes: 6efaf10f ("IB/rdmavt: Avoid queuing work into a destroyed cq kthread worker")
Cc: Petr Mladek <pmladek@suse.com>
Cc: Doug Ledford <dledford@redhat.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

Pull rdma updates from Doug Ledford:
 "This is the complete update for the rdma stack for this release cycle.

  Most of it is typical driver and core updates, but there is the
  entirely new VMWare pvrdma driver. You may have noticed that there
  were changes in DaveM's pull request to the bnxt Ethernet driver to
  support a RoCE RDMA driver. The bnxt_re driver was tentatively set to
  be pulled in this release cycle, but it simply wasn't ready in time
  and was dropped (a few review comments still to address, and some
  multi-arch build issues like prefetch() not working across all
  arches).

  Summary:

   - shared mlx5 updates with net stack (will drop out on merge if
     Dave's tree has already been merged)

   - driver updates: cxgb4, hfi1, hns-roce, i40iw, mlx4, mlx5, qedr, rxe

   - debug cleanups

   - new connection rejection helpers

   - SRP updates

   - various misc fixes

   - new paravirt driver from vmware"

* tag 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/dledford/rdma: (210 commits)
  IB: Add vmw_pvrdma driver
  IB/mlx4: fix improper return value
  IB/ocrdma: fix bad initialization
  infiniband: nes: return value of skb_linearize should be handled
  MAINTAINERS: Update Intel RDMA RNIC driver maintainers
  MAINTAINERS: Remove Mitesh Ahuja from emulex maintainers
  IB/core: fix unmap_sg argument
  qede: fix general protection fault may occur on probe
  IB/mthca: Replace pci_pool_alloc by pci_pool_zalloc
  mlx5, calc_sq_size(): Make a debug message more informative
  mlx5: Remove a set-but-not-used variable
  mlx5: Use { } instead of { 0 } to init struct
  IB/srp: Make writing the add_target sysfs attr interruptible
  IB/srp: Make mapping failures easier to debug
  IB/srp: Make login failures easier to debug
  IB/srp: Introduce a local variable in srp_add_one()
  IB/srp: Fix CONFIG_DYNAMIC_DEBUG=n build
  IB/multicast: Check ib_find_pkey() return value
  IPoIB: Avoid reading an uninitialized member variable
  IB/mad: Fix an array index check
  ...

Pull DeviceTree updates from Rob Herring:

 - add various vendor prefixes.

 - fix NUMA node handling when "numa=off" is passed on kernel command
   line.

 - coding style Clean-up of overlay handling code.

 - DocBook fixes in DT platform driver code

 - Altera SoCFPGA binding addtions for freeze bridge, arria10 FPGA
   manager and FPGA bridges.

 - a couple of printk message fixes.

* tag 'devicetree-for-4.10' of git://git.kernel.org/pub/scm/linux/kernel/git/robh/linux: (33 commits)
  dt: pwm: bcm2835: fix typo in clocks property name
  devicetree: add vendor prefix for National Instruments
  Revert "of: base: add support to get machine model name"
  of: Fix issue where code would fall through to error case.
  drivers/of: fix missing pr_cont()s in of_print_phandle_args
  devicetree: bindings: Add vendor prefix for Oki
  devicetree: bindings: Add vendor prefix for Andes Technology Corporation
  dt-bindings: add MYIR Tech hardware vendor prefix
  add bindings document for altera freeze bridge
  ARM: socfpga: add bindings doc for arria10 fpga manager
  ARM: socfpga: add bindings document for fpga bridge drivers
  of: base: add support to get machine model name
  of/platform: clarify of_find_device_by_node refcounting
  of/platform: fix of_platform_device_destroy comment
  of: Remove unused variable overlay_symbols
  of: Move setting of pointer to beside test for non-null
  of: Add back an error message, restructured
  of: Update comments to reflect changes and increase clarity
  of: Remove redundant size check
  of: Update structure of code to be clearer, also remove BUG_ON()
  ...

Merge tag 'pwm/for-4.10-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/thierry.reding/linux-pwm

Pull pwm updates from Thierry Reding:
 "This is a very tiny pull request, with just a new driver for HiSilicon
  BVT SoCs and a cleanup for the Amlogic Meson driver.

  There are other patches on the list, but my timing was really bad this
  time and I ended up not having the time to look at them in enough
  detail to be comfortable merging them"

* tag 'pwm/for-4.10-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/thierry.reding/linux-pwm:
  pwm: Add PWM driver for HiSilicon BVT SOCs
  pwm: meson: Remove unneeded platform MODULE_ALIAS

Pull crypto fixes from Herbert Xu:
 "This fixes the following issues:

   - a crash regression in the new skcipher walker

   - incorrect return value in public_key_verify_signature

   - fix for in-place signing in the sign-file utility"

* 'linus' of git://git.kernel.org/pub/scm/linux/kernel/git/herbert/crypto-2.6:
  crypto: skcipher - fix crash in virtual walk
  sign-file: Fix inplace signing when src and dst names are both specified
  crypto: asymmetric_keys - set error code on failure

Update the MAINTAINERS file for AFS and AF_RXRPC to include a website
pointer.
Signed-off-by: David Howells <dhowells@redhat.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

[ This resurrects commit 53855d10, which was reverted in
  2b41226b.  It depended on commit d544abd5 ("lib/radix-tree:
  Convert to hotplug state machine") so now it is correct to apply ]

Patch "lib/radix-tree: Convert to hotplug state machine" breaks the test
suite as it adds a call to cpuhp_setup_state_nocalls() which is not
currently emulated in the test suite.  Add it, and delete the emulation
of the old CPU hotplug mechanism.

Link: http://lkml.kernel.org/r/1480369871-5271-36-git-send-email-mawilcox@linuxonhyperv.comSigned-off-by: Matthew Wilcox <mawilcox@microsoft.com>
Tested-by: Kirill A. Shutemov <kirill.shutemov@linux.intel.com>
Cc: Konstantin Khlebnikov <koct9i@gmail.com>
Cc: Ross Zwisler <ross.zwisler@linux.intel.com>
Cc: Matthew Wilcox <mawilcox@microsoft.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

If CONFIG_PRINTK=n:

    kernel/printk/printk.c:1893: warning: ‘cont’ defined but not used

Note that there are actually two different struct cont definitions and
objects: the first one is used if CONFIG_PRINTK=y, the second one became
unused by removing console_cont_flush().

Fixes: 5c2992ee ("printk: remove console flushing special cases for partial buffered lines")
Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org>
Acked-by: Petr Mladek <pmladek@suse.com>
[ I do the occasional "allnoconfig" builds, but apparently not often
  enough  - Linus ]
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

Pull xfs updates from Dave Chinner:
 "There is quite a varied bunch of stuff in this update, and some of it
  you will have already merged through the ext4 tree which imported the
  dax-4.10-iomap-pmd topic branch from the XFS tree.

  There is also a new direct IO implementation that uses the iomap
  infrastructure. It's much simpler, faster, and has lower IO latency
  than the existing direct IO infrastructure.

  Summary:
   - DAX PMD faults via iomap infrastructure
   - Direct-io support in iomap infrastructure
   - removal of now-redundant XFS inode iolock, replaced with VFS
     i_rwsem
   - synchronisation with fixes and changes in userspace libxfs code
   - extent tree lookup helpers
   - lots of little corruption detection improvements to verifiers
   - optimised CRC calculations
   - faster buffer cache lookups
   - deprecation of barrier/nobarrier mount options - we always use
     REQ_FUA/REQ_FLUSH where appropriate for data integrity now
   - cleanups to speculative preallocation
   - miscellaneous minor bug fixes and cleanups"

* tag 'xfs-for-linus-4.10-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/dgc/linux-xfs: (63 commits)
  xfs: nuke unused tracepoint definitions
  xfs: use GPF_NOFS when allocating btree cursors
  xfs: use xfs_vn_setattr_size to check on new size
  xfs: deprecate barrier/nobarrier mount option
  xfs: Always flush caches when integrity is required
  xfs: ignore leaf attr ichdr.count in verifier during log replay
  xfs: use rhashtable to track buffer cache
  xfs: optimise CRC updates
  xfs: make xfs btree stats less huge
  xfs: don't cap maximum dedupe request length
  xfs: don't allow di_size with high bit set
  xfs: error out if trying to add attrs and anextents > 0
  xfs: don't crash if reading a directory results in an unexpected hole
  xfs: complain if we don't get nextents bmap records
  xfs: check for bogus values in btree block headers
  xfs: forbid AG btrees with level == 0
  xfs: several xattr functions can be void
  xfs: handle cow fork in xfs_bmap_trace_exlist
  xfs: pass state not whichfork to trace_xfs_extlist
  xfs: Move AGI buffer type setting to xfs_read_agi
  ...

It actively hurts proper merging, and makes for a lot of special cases.
There was a good(ish) reason for doing it originally, but it's getting
too painful to maintain.  And most of the original reasons for it are
long gone.

So instead of having special code to flush partial lines to the console
(as opposed to the record buffers), do _all_ the console writing from
the record buffer, and be done with it.

If an oops happens (or some other synchronous event), we will flush the
partial lines due to the oops printing activity, so this does not affect
that.  It does mean that if you have a completely hung machine, a
partial preceding line may not have been printed out.

That was some of the original reason for this complexity, in fact, back
when we used to test for the historical i386 "halt" instruction problem
by doing

	pr_info("Checking 'hlt' instruction... ");

	if (!boot_cpu_data.hlt_works_ok) {
		pr_cont("disabled\n");
		return;
	}
	halt();
	halt();
	halt();
	halt();
	pr_cont("OK\n");

and that model no longer works (it the 'hlt' instruction kills the
machine, the partial line won't have been flushed, so you won't even see
it).

Of course, that was also back in the days when people actually had
textual console output rather than a graphical splash-screen at bootup.
How times change..

Cc: Sergey Senozhatsky <sergey.senozhatsky.work@gmail.com>
Cc: Joe Perches <joe@perches.com>
Cc: Steven Rostedt <rostedt@goodmis.org>
Tested-by: Petr Mladek <pmladek@suse.com>
Tested-by: Geert Uytterhoeven <geert@linux-m68k.org>
Tested-by: Mark Rutland <mark.rutland@arm.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

The record logging code looks at the previous record flags in various
ways, and they are all wrong.

You can't use the previous record flags to determine anything about the
next record, because they may simply not be related.  In particular, the
reason the previous record was a continuation record may well be exactly
_because_ the new record was printed by a different process, which is
why the previous record was flushed.

So all those games are simply wrong, and make the code hard to
understand (because the code fundamentally cdoes not make sense).

So remove it.
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

Pull IPMI updates from Corey Minyard:
 "Various small fixes for IPMI. Cleanups in the documentation and
  convertion printk() to pr_xxx() and removal of an unused module
  parameter. Some small bug fixes and enhancements.

  This also adds a post softdep from the IPMI core module to the IPMI
  device interface. Many people have complained that the device
  interface isn't automatically avaiable when IPMI is loaded. I don't
  want to make the device interface mandatory, though, plenty of people
  use IPMI internally (like with ACPI) and don't need a device interface
  or the added possible security entry. A softdep should make it work
  'out of the box' but allow people to not have it if they don't want
  it"

* tag 'for-linus-4.10' of git://git.code.sf.net/p/openipmi/linux-ipmi:
  ipmi: create hardware-independent softdep for ipmi_devintf
  ipmi: Fix sequence number handling
  ipmi: Pick up slave address from SMBIOS on an ACPI device
  ipmi_si: Clean up printks
  Move platform device creation earlier in the initialization
  ipmi: Update documentation
  ipmi_ssif: Remove an unused module parameter
  ipmi: Periodically check for events, not messages

Pull dmaengine updates from Vinod Koul:
 "Fairly routine update this time around with all changes specific to
  drivers:

   - New driver for STMicroelectronics FDMA
   - Memory-to-memory transfers on dw dmac
   - Support for slave maps on pl08x devices
   - Bunch of driver fixes to use dma_pool_zalloc
   - Bunch of compile and warning fixes spread across drivers"

[ The ST FDMA driver already came in earlier through the remoteproc tree ]

* tag 'dmaengine-4.10-rc1' of git://git.infradead.org/users/vkoul/slave-dma: (68 commits)
  dmaengine: sirf-dma: remove unused ‘sdesc’
  dmaengine: pl330: remove unused ‘regs’
  dmaengine: s3c24xx: remove unused ‘cdata’
  dmaengine: stm32-dma: remove unused ‘src_addr’
  dmaengine: stm32-dma: remove unused ‘dst_addr’
  dmaengine: stm32-dma: remove unused ‘sfcr’
  dmaengine: pch_dma: remove unused ‘cookie’
  dmaengine: mic_x100_dma: remove unused ‘data’
  dmaengine: img-mdc: remove unused ‘prev_phys’
  dmaengine: usb-dmac: remove unused ‘uchan’
  dmaengine: ioat: remove unused ‘res’
  dmaengine: ioat: remove unused ‘ioat_dma’
  dmaengine: ioat: remove unused ‘is_raid_device’
  dmaengine: pl330: do not generate unaligned access
  dmaengine: k3dma: move to dma_pool_zalloc
  dmaengine: at_hdmac: move to dma_pool_zalloc
  dmaengine: at_xdmac: don't restore unsaved status
  dmaengine: ioat: set error code on failures
  dmaengine: ioat: set error code on failures
  dmaengine: DW DMAC: add multi-block property to device tree
  ...

Pull modules updates from Jessica Yu:
 "Summary of modules changes for the 4.10 merge window:

   - The rodata= cmdline parameter has been extended to additionally
     apply to module mappings

   - Fix a hard to hit race between module loader error/clean up
     handling and ftrace registration

   - Some code cleanups, notably panic.c and modules code use a unified
     taint_flags table now. This is much cleaner than duplicating the
     taint flag code in modules.c"

* tag 'modules-for-v4.10' of git://git.kernel.org/pub/scm/linux/kernel/git/jeyu/linux:
  module: fix DEBUG_SET_MODULE_RONX typo
  module: extend 'rodata=off' boot cmdline parameter to module mappings
  module: Fix a comment above strong_try_module_get()
  module: When modifying a module's text ignore modules which are going away too
  module: Ensure a module's state is set accordingly during module coming cleanup code
  module: remove trailing whitespace
  taint/module: Clean up global and module taint flags handling
  modpost: free allocated memory

Merge more updates from Andrew Morton:

 - a few misc things

 - kexec updates

 - DMA-mapping updates to better support networking DMA operations

 - IPC updates

 - various MM changes to improve DAX fault handling

 - lots of radix-tree changes, mainly to the test suite. All leading up
   to reimplementing the IDA/IDR code to be a wrapper layer over the
   radix-tree. However the final trigger-pulling patch is held off for
   4.11.

* emailed patches from Andrew Morton <akpm@linux-foundation.org>: (114 commits)
  radix tree test suite: delete unused rcupdate.c
  radix tree test suite: add new tag check
  radix-tree: ensure counts are initialised
  radix tree test suite: cache recently freed objects
  radix tree test suite: add some more functionality
  idr: reduce the number of bits per level from 8 to 6
  rxrpc: abstract away knowledge of IDR internals
  tpm: use idr_find(), not idr_find_slowpath()
  idr: add ida_is_empty
  radix tree test suite: check multiorder iteration
  radix-tree: fix replacement for multiorder entries
  radix-tree: add radix_tree_split_preload()
  radix-tree: add radix_tree_split
  radix-tree: add radix_tree_join
  radix-tree: delete radix_tree_range_tag_if_tagged()
  radix-tree: delete radix_tree_locate_item()
  radix-tree: improve multiorder iterators
  btrfs: fix race in btrfs_free_dummy_fs_info()
  radix-tree: improve dump output
  radix-tree: make radix_tree_find_next_bit more useful
  ...

Pull block IO fixes from Jens Axboe:
 "A few fixes that I collected as post-merge.

  I was going to wait a bit with sending this out, but the O_DIRECT fix
  should really go in sooner rather than later"

* 'for-linus' of git://git.kernel.dk/linux-block:
  blk-mq: Fix failed allocation path when mapping queues
  blk-mq: Avoid memory reclaim when remapping queues
  block_dev: don't update file access position for sync direct IO
  nvme/pci: Log PCI_STATUS when the controller dies
  block_dev: don't test bdev->bd_contains when it is not stable

Pull fs meta data unmap optimization from Jens Axboe:
 "A series from Jan Kara, providing a more efficient way for unmapping
  meta data from in the buffer cache than doing it block-by-block.

  Provide a general helper that existing callers can use"

* 'for-4.10/fs-unmap' of git://git.kernel.dk/linux-block:
  fs: Remove unmap_underlying_metadata
  fs: Add helper to clean bdev aliases under a bh and use it
  ext2: Use clean_bdev_aliases() instead of iteration
  ext4: Use clean_bdev_aliases() instead of iteration
  direct-io: Use clean_bdev_aliases() instead of handmade iteration
  fs: Provide function to unmap metadata for a range of blocks

Jaegeuk Kim reports that the debian kernel package build gets confused
by the lack of Documentation/Changes file.  We also refer to that path
name in ver_linux and various how-to files and Kconfig files.

The file got renamed away in commit 186128f7 ("docs-rst: add
documents to development-process"), and as Jaegeuk Kim points out, the
commit message for that change says "use symlinks instead of renames",
but then the commit itself actually does renames after all.

Maybe we should do the other files too, but for now this just adds the
minimal symlink back to the historical name, so that people looking for
Documentation/Changes will actually find what they are looking for, and
the debian scripts continue to work.
Reported-by: Jaegeuk Kim <jaegeuk@kernel.org>
Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Cc: Mauro Carvalho Chehab <mchehab@s-opensource.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

This file was used to implement call_rcu() before liburcu implemented
that function.  It hasn't even been compiled since before the test suite
was added to the kernel.  Remove it to reduce confusion.

Link: http://lkml.kernel.org/r/1481667692-14500-5-git-send-email-mawilcox@linuxonhyperv.comSigned-off-by: Matthew Wilcox <mawilcox@microsoft.com>
Cc: Kirill A. Shutemov <kirill.shutemov@linux.intel.com>
Cc: Konstantin Khlebnikov <koct9i@gmail.com>
Cc: Ross Zwisler <ross.zwisler@linux.intel.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

We have a check that setting a tag on a single entry at root succeeds,
but we were missing a check that clearing a tag on that same entry also
succeeds.

Link: http://lkml.kernel.org/r/1481667692-14500-4-git-send-email-mawilcox@linuxonhyperv.comSigned-off-by: Matthew Wilcox <mawilcox@microsoft.com>
Cc: Kirill A. Shutemov <kirill.shutemov@linux.intel.com>
Cc: Konstantin Khlebnikov <koct9i@gmail.com>
Cc: Ross Zwisler <ross.zwisler@linux.intel.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

radix_tree_join() was freeing nodes with a non-zero ->exceptional count,
and radix_tree_split() wasn't zeroing ->exceptional when it allocated
the new node.  Fix this by making all callers of radix_tree_node_alloc()
pass in the new counts (and some other always-initialised fields), which
will prevent the problem recurring if in future we decide to do
something similar.

Link: http://lkml.kernel.org/r/1481667692-14500-3-git-send-email-mawilcox@linuxonhyperv.comSigned-off-by: Matthew Wilcox <mawilcox@microsoft.com>
Cc: Kirill A. Shutemov <kirill.shutemov@linux.intel.com>
Cc: Konstantin Khlebnikov <koct9i@gmail.com>
Cc: Ross Zwisler <ross.zwisler@linux.intel.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

The kmem_cache_alloc implementation simply allocates new memory from
malloc() and calls the ctor, which zeroes out the entire object.  This
means it cannot spot bugs where the object isn't properly reinitialised
before being freed.

Add a small (11 objects) cache before freeing objects back to malloc.
This is enough to let us write a test to catch it, although the memory
allocator is now aware of the structure of the radix tree node, since it
chains free objects through ->private_data (like the percpu cache does).

Link: http://lkml.kernel.org/r/1481667692-14500-2-git-send-email-mawilcox@linuxonhyperv.comSigned-off-by: Matthew Wilcox <mawilcox@microsoft.com>
Cc: Kirill A. Shutemov <kirill.shutemov@linux.intel.com>
Cc: Konstantin Khlebnikov <koct9i@gmail.com>
Cc: Ross Zwisler <ross.zwisler@linux.intel.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

IDR needs more functionality from the kernel: kmalloc()/kfree(), and
xchg().

Link: http://lkml.kernel.org/r/1480369871-5271-67-git-send-email-mawilcox@linuxonhyperv.comSigned-off-by: Matthew Wilcox <willy@linux.intel.com>
Tested-by: Kirill A. Shutemov <kirill.shutemov@linux.intel.com>
Cc: Konstantin Khlebnikov <koct9i@gmail.com>
Cc: Ross Zwisler <ross.zwisler@linux.intel.com>
Cc: Matthew Wilcox <mawilcox@microsoft.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

In preparation for merging the IDR and radix tree, reduce the fanout at
each level from 256 to 64.  If this causes a performance problem then a
bisect will point to this commit, and we'll have a better idea about
what we might do to fix it.

Link: http://lkml.kernel.org/r/1480369871-5271-66-git-send-email-mawilcox@linuxonhyperv.comSigned-off-by: Matthew Wilcox <willy@linux.intel.com>
Tested-by: Kirill A. Shutemov <kirill.shutemov@linux.intel.com>
Cc: Konstantin Khlebnikov <koct9i@gmail.com>
Cc: Ross Zwisler <ross.zwisler@linux.intel.com>
Cc: Matthew Wilcox <mawilcox@microsoft.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

Add idr_get_cursor() / idr_set_cursor() APIs, and remove the reference
to IDR_SIZE.

Link: http://lkml.kernel.org/r/1480369871-5271-65-git-send-email-mawilcox@linuxonhyperv.comSigned-off-by: Matthew Wilcox <mawilcox@microsoft.com>
Reviewed-by: David Howells <dhowells@redhat.com>
Tested-by: Kirill A. Shutemov <kirill.shutemov@linux.intel.com>
Cc: Konstantin Khlebnikov <koct9i@gmail.com>
Cc: Ross Zwisler <ross.zwisler@linux.intel.com>
Cc: Matthew Wilcox <mawilcox@microsoft.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>