1. 28 Sep, 2016 3 commits
    • Lukas Wunner's avatar
      PCI: Recognize D3cold in pci_update_current_state() · a6a64026
      Lukas Wunner authored
      Whenever a device is resumed or its power state is changed using the
      platform, its new power state is read from the PM Control & Status Register
      and cached in pci_dev->current_state by calling pci_update_current_state().
      
      If the device is in D3cold, reading from config space typically results in
      a fabricated "all ones" response.  But if it's in D3hot, the two bits
      representing the power state in the PMCSR are *also* set to 1.  Thus D3hot
      and D3cold are not discernible by just reading the PMCSR.
      
      To account for this, pci_update_current_state() uses two workarounds:
      
      - When transitioning to D3cold using pci_platform_power_transition(), the
        new power state is set blindly by pci_update_current_state(), i.e.
        without verifying that the device actually *is* in D3cold.  This is
        achieved by setting the "state" argument to PCI_D3cold.  The "state"
        argument was originally intended to convey the new state in case the
        device doesn't have the PM capability.  It is *also* used to convey the
        device state if the PM capability is present and the new state is D3cold,
        but this was never explained in the kerneldoc.
      
      - Once the current_state is set to D3cold, further invocations of
        pci_update_current_state() will blindly assume that the device is still
        in D3cold and leave the current_state unmodified.  To get out of this
        impasse, the current_state has to be set directly, typically by calling
        pci_raw_set_power_state() or pci_enable_device().
      
      It would be desirable if pci_update_current_state() could reliably detect
      D3cold by itself.  That would allow us to do away with these workarounds,
      and it would allow for a smarter, more energy conserving runtime resume
      strategy after system sleep:  Currently devices which utilize
      direct_complete are mandatorily runtime resumed in their ->complete stage.
      This can be avoided if their power state after system sleep is the same as
      before, but it requires a mechanism to detect the power state reliably.
      
      We've just gained the ability to query the platform firmware for its
      opinion on the device's power state.  On platforms conforming to ACPI 4.0
      or newer, this allows recognition of D3cold.  Pre-4.0 platforms lack _PR3
      and therefore the deepest power state that will ever be reported is D3hot,
      even though the device may actually be in D3cold.  To detect D3cold in
      those cases, accessibility of the vendor ID in config space is probed using
      pci_device_is_present().  This also works for devices which are not
      platform-power-manageable at all, but can be suspended to D3cold using a
      nonstandard mechanism (e.g. some hybrid graphics laptops or Thunderbolt on
      the Mac).
      Signed-off-by: default avatarLukas Wunner <lukas@wunner.de>
      Signed-off-by: default avatarBjorn Helgaas <bhelgaas@google.com>
      Acked-by: default avatarRafael J. Wysocki <rafael.j.wysocki@intel.com>
      a6a64026
    • Lukas Wunner's avatar
      PCI: Query platform firmware for device power state · cc7cc02b
      Lukas Wunner authored
      Usually the most accurate way to determine a PCI device's power state is to
      read its PM Control & Status Register.  There are two cases however when
      this is not an option:  If the device doesn't have the PM capability at
      all, or if it is in D3cold (in which case its config space is
      inaccessible).
      
      In both cases, we can alternatively query the platform firmware for its
      opinion on the device's power state.  To facilitate this, augment struct
      pci_platform_pm_ops with a ->get_power callback and implement it for
      acpi_pci_platform_pm (the only pci_platform_pm_ops existing so far).
      
      It is used by a forthcoming commit to let pci_update_current_state()
      recognize D3cold.
      Signed-off-by: default avatarLukas Wunner <lukas@wunner.de>
      Signed-off-by: default avatarBjorn Helgaas <bhelgaas@google.com>
      Acked-by: default avatarRafael J. Wysocki <rafael.j.wysocki@intel.com>
      cc7cc02b
    • Lukas Wunner's avatar
      PCI: Afford direct-complete to devices with non-standard PM · 4132a577
      Lukas Wunner authored
      There are devices not power-manageable by the platform, but still able to
      runtime suspend to D3cold with a non-standard mechanism.  One example is
      laptop hybrid graphics where the discrete GPU and its built-in HDA
      controller are power-managed either with a _DSM (AMD PowerXpress, Nvidia
      Optimus) or a separate gmux controller (MacBook Pro).  Another example is
      Thunderbolt on Macs which is power-managed with custom ACPI methods.
      
      When putting the system to sleep, we currently handle such devices
      improperly by transitioning them from D3cold to D3hot (the default power
      state defined at the top of pci_target_state()).  This wastes energy and
      prolongs the suspend sequence (powering up the Thunderbolt controller takes
      2 seconds).
      
      Avoid that by assuming that a non-standard PM mechanism is at work if the
      device is not platform-power-manageable but currently in D3cold.
      
      If the device is wakeup enabled, we might still have to wake it up from
      D3cold if PME cannot be signaled from that power state.
      
      The check for devices without PM capability comes before the check for
      D3cold since such devices could in theory also be powered down by
      non-standard means and should then be afforded direct-complete as well.
      Signed-off-by: default avatarLukas Wunner <lukas@wunner.de>
      Signed-off-by: default avatarBjorn Helgaas <bhelgaas@google.com>
      Acked-by: default avatarRafael J. Wysocki <rafael.j.wysocki@intel.com>
      4132a577
  2. 08 Aug, 2016 1 commit
  3. 07 Aug, 2016 10 commits
    • Linus Torvalds's avatar
      Merge branch 'for-linus' of git://git.kernel.dk/linux-block · 857953d7
      Linus Torvalds authored
      Pull more block fixes from Jens Axboe:
       "As mentioned in the pull the other day, a few more fixes for this
        round, all related to the bio op changes in this series.
      
        Two fixes, and then a cleanup, renaming bio->bi_rw to bio->bi_opf.  I
        wanted to do that change right after or right before -rc1, so that
        risk of conflict was reduced.  I just rebased the series on top of
        current master, and no new ->bi_rw usage has snuck in"
      
      * 'for-linus' of git://git.kernel.dk/linux-block:
        block: rename bio bi_rw to bi_opf
        target: iblock_execute_sync_cache() should use bio_set_op_attrs()
        mm: make __swap_writepage() use bio_set_op_attrs()
        block/mm: make bdev_ops->rw_page() take a bool for read/write
      857953d7
    • Linus Torvalds's avatar
      Merge tag 'drm-for-v4.8-zpos' of git://people.freedesktop.org/~airlied/linux · 635a4ba1
      Linus Torvalds authored
      Pull drm zpos property support from Dave Airlie:
       "This tree was waiting on some media stuff I hadn't had time to get a
        stable branchpoint off, so I just waited until it was all in your tree
        first.
      
        It's been around a bit on the list and shouldn't affect anything
        outside adding the generic API and moving some ARM drivers to using
        it"
      
      * tag 'drm-for-v4.8-zpos' of git://people.freedesktop.org/~airlied/linux:
        drm: rcar: use generic code for managing zpos plane property
        drm/exynos: use generic code for managing zpos plane property
        drm: sti: use generic zpos for plane
        drm: add generic zpos property
      635a4ba1
    • Jens Axboe's avatar
      block: rename bio bi_rw to bi_opf · 1eff9d32
      Jens Axboe authored
      Since commit 63a4cc24, bio->bi_rw contains flags in the lower
      portion and the op code in the higher portions. This means that
      old code that relies on manually setting bi_rw is most likely
      going to be broken. Instead of letting that brokeness linger,
      rename the member, to force old and out-of-tree code to break
      at compile time instead of at runtime.
      
      No intended functional changes in this commit.
      Signed-off-by: default avatarJens Axboe <axboe@fb.com>
      1eff9d32
    • Jens Axboe's avatar
      target: iblock_execute_sync_cache() should use bio_set_op_attrs() · 31c64f78
      Jens Axboe authored
      The original commit missed this function, it needs to mark it a
      write flush.
      
      Cc: Mike Christie <mchristi@redhat.com>
      Fixes: e742fc32 ("target: use bio op accessors")
      Signed-off-by: default avatarJens Axboe <axboe@fb.com>
      31c64f78
    • Jens Axboe's avatar
      mm: make __swap_writepage() use bio_set_op_attrs() · ba13e83e
      Jens Axboe authored
      Cleaner than manipulating bio->bi_rw flags directly.
      Signed-off-by: default avatarJens Axboe <axboe@fb.com>
      ba13e83e
    • Jens Axboe's avatar
      block/mm: make bdev_ops->rw_page() take a bool for read/write · c11f0c0b
      Jens Axboe authored
      Commit abf54548 changed it from an 'rw' flags type to the
      newer ops based interface, but now we're effectively leaking
      some bdev internals to the rest of the kernel. Since we only
      care about whether it's a read or a write at that level, just
      pass in a bool 'is_write' parameter instead.
      
      Then we can also move op_is_write() and friends back under
      CONFIG_BLOCK protection.
      Reviewed-by: default avatarMike Christie <mchristi@redhat.com>
      Signed-off-by: default avatarJens Axboe <axboe@fb.com>
      c11f0c0b
    • Linus Torvalds's avatar
      Merge tag 'doc-4.8-fixes' of git://git.lwn.net/linux · 52ddb7e9
      Linus Torvalds authored
      Pull documentation fixes from Jonathan Corbet:
       "Three fixes for the docs build, including removing an annoying warning
        on 'make help' if sphinx isn't present"
      
      * tag 'doc-4.8-fixes' of git://git.lwn.net/linux:
        DocBook: use DOCBOOKS="" to ignore DocBooks instead of IGNORE_DOCBOOKS=1
        Documenation: update cgroup's document path
        Documentation/sphinx: do not warn about missing tools in 'make help'
      52ddb7e9
    • Linus Torvalds's avatar
      Merge tag 'binfmt-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/binfmt_misc · e9d488c3
      Linus Torvalds authored
      Pull binfmt_misc update from James Bottomley:
       "This update is to allow architecture emulation containers to function
        such that the emulation binary can be housed outside the container
        itself.  The container and fs parts both have acks from relevant
        experts.
      
        To use the new feature you have to add an F option to your binfmt_misc
        configuration"
      
      From the docs:
       "The usual behaviour of binfmt_misc is to spawn the binary lazily when
        the misc format file is invoked.  However, this doesn't work very well
        in the face of mount namespaces and changeroots, so the F mode opens
        the binary as soon as the emulation is installed and uses the opened
        image to spawn the emulator, meaning it is always available once
        installed, regardless of how the environment changes"
      
      * tag 'binfmt-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/binfmt_misc:
        binfmt_misc: add F option description to documentation
        binfmt_misc: add persistent opened binary handler for containers
        fs: add filp_clone_open API
      e9d488c3
    • Eryu Guan's avatar
      fs: return EPERM on immutable inode · 337684a1
      Eryu Guan authored
      In most cases, EPERM is returned on immutable inode, and there're only a
      few places returning EACCES. I noticed this when running LTP on
      overlayfs, setxattr03 failed due to unexpected EACCES on immutable
      inode.
      
      So converting all EACCES to EPERM on immutable inode.
      Acked-by: default avatarDave Chinner <dchinner@redhat.com>
      Signed-off-by: default avatarEryu Guan <guaneryu@gmail.com>
      Signed-off-by: default avatarAl Viro <viro@zeniv.linux.org.uk>
      Signed-off-by: default avatarLinus Torvalds <torvalds@linux-foundation.org>
      337684a1
    • Linus Torvalds's avatar
      Merge branch 'for-linus-2' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs · fe64f328
      Linus Torvalds authored
      Pull more vfs updates from Al Viro:
       "Assorted cleanups and fixes.
      
        In the "trivial API change" department - ->d_compare() losing 'parent'
        argument"
      
      * 'for-linus-2' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs:
        cachefiles: Fix race between inactivating and culling a cache object
        9p: use clone_fid()
        9p: fix braino introduced in "9p: new helper - v9fs_parent_fid()"
        vfs: make dentry_needs_remove_privs() internal
        vfs: remove file_needs_remove_privs()
        vfs: fix deadlock in file_remove_privs() on overlayfs
        get rid of 'parent' argument of ->d_compare()
        cifs, msdos, vfat, hfs+: don't bother with parent in ->d_compare()
        affs ->d_compare(): don't bother with ->d_inode
        fold _d_rehash() and __d_rehash() together
        fold dentry_rcuwalk_invalidate() into its only remaining caller
      fe64f328
  4. 06 Aug, 2016 21 commits
    • Linus Torvalds's avatar
      Merge tag 'xfs-rmap-for-linus-4.8-rc1' of... · 0cbbc422
      Linus Torvalds authored
      Merge tag 'xfs-rmap-for-linus-4.8-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/dgc/linux-xfs
      
      Pull more xfs updates from Dave Chinner:
       "This is the second part of the XFS updates for this merge cycle, and
        contains the new reverse block mapping feature for XFS.
      
        Reverse mapping allows us to track the owner of a specific block on
        disk precisely.  It is implemented as a set of btrees (one per
        allocation group) that track the owners of allocated extents.
        Effectively it is a "used space tree" that is updated when we allocate
        or free extents.  i.e. it is coherent with the free space btrees we
        already maintain and never overlaps with them.
      
        This reverse mapping infrastructure is the building block of several
        upcoming features - reflink, copy-on-write data, dedupe, online
        metadata and data scrubbing, highly accurate bad sector/data loss
        reporting to users, and significantly improved reconstruction of
        damaged and corrupted filesystems.  There's a lot of new stuff coming
        along in the next couple of cycles,a nd it all builds in the rmap
        infrastructure.
      
        As such, it's a huge chunk of new code with new on-disk format
        features and internal infrastructure.  It warns at mount time as an
        experimental feature and that it may eat data (as we do with all new
        on-disk features until they stabilise).  We have not released
        userspace suport for it yet - userspace support currently requires
        download from Darrick's xfsprogs repo and build from source, so the
        access to this feature is really developer/tester only at this point.
        Initial userspace support will be released at the same time kernel
        with this code in it is released.
      
        The new rmap enabled code regresses 3 xfstests - all are ENOSPC
        related corner cases, one of which Darrick posted a fix for a few
        hours ago.  The other two are fixed by infrastructure that is part of
        the upcoming reflink patchset.  This new ENOSPC infrastructure
        requires a on-disk format tweak required to keep mount times in
        check - we need to keep an on-disk count of allocated rmapbt blocks so
        we don't have to scan the entire btrees at mount time to count them.
      
        This is currently being tested and will be part of the fixes sent in
        the next week or two so users will not be exposed to this change"
      
      * tag 'xfs-rmap-for-linus-4.8-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/dgc/linux-xfs: (52 commits)
        xfs: move (and rename) the deferred bmap-free tracepoints
        xfs: collapse single use static functions
        xfs: remove unnecessary parentheses from log redo item recovery functions
        xfs: remove the extents array from the rmap update done log item
        xfs: in btree_lshift, only allocate temporary cursor when needed
        xfs: remove unnecesary lshift/rshift key initialization
        xfs: remove the get*keys and update_keys btree ops pointers
        xfs: enable the rmap btree functionality
        xfs: don't update rmapbt when fixing agfl
        xfs: disable XFS_IOC_SWAPEXT when rmap btree is enabled
        xfs: add rmap btree block detection to log recovery
        xfs: add rmap btree geometry feature flag
        xfs: propagate bmap updates to rmapbt
        xfs: enable the xfs_defer mechanism to process rmaps to update
        xfs: log rmap intent items
        xfs: create rmap update intent log items
        xfs: add rmap btree insert and delete helpers
        xfs: convert unwritten status of reverse mappings
        xfs: remove an extent from the rmap btree
        xfs: add an extent to the rmap btree
        ...
      0cbbc422
    • Linus Torvalds's avatar
      Merge branch 'work.const-qstr' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs · 835c92d4
      Linus Torvalds authored
      Pull qstr constification updates from Al Viro:
       "Fairly self-contained bunch - surprising lot of places passes struct
        qstr * as an argument when const struct qstr * would suffice; it
        complicates analysis for no good reason.
      
        I'd prefer to feed that separately from the assorted fixes (those are
        in #for-linus and with somewhat trickier topology)"
      
      * 'work.const-qstr' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs:
        qstr: constify instances in adfs
        qstr: constify instances in lustre
        qstr: constify instances in f2fs
        qstr: constify instances in ext2
        qstr: constify instances in vfat
        qstr: constify instances in procfs
        qstr: constify instances in fuse
        qstr constify instances in fs/dcache.c
        qstr: constify instances in nfs
        qstr: constify instances in ocfs2
        qstr: constify instances in autofs4
        qstr: constify instances in hfs
        qstr: constify instances in hfsplus
        qstr: constify instances in logfs
        qstr: constify dentry_init_security
      835c92d4
    • Linus Torvalds's avatar
      Merge tag 'media/v4.8-6' of git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/linux-media · ce804bf5
      Linus Torvalds authored
      Pull mailcap fixlets from Mauro Carvalho Chehab:
       "A small fixup for my and Shuah's entries in .mailcap.
      
        Basically, those entries were with a syntax that makes
        get_maintainer.pl to do the wrong thing"
      
      * tag 'media/v4.8-6' of git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/linux-media:
        .mailmap: Correct entries for Mauro Carvalho Chehab and Shuah Khan
      ce804bf5
    • Linus Torvalds's avatar
      Merge tag 'for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mst/vhost · 0803e040
      Linus Torvalds authored
      Pull virtio/vhost updates from Michael Tsirkin:
      
       - new vsock device support in host and guest
      
       - platform IOMMU support in host and guest, including compatibility
         quirks for legacy systems.
      
       - misc fixes and cleanups.
      
      * tag 'for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mst/vhost:
        VSOCK: Use kvfree()
        vhost: split out vringh Kconfig
        vhost: detect 32 bit integer wrap around
        vhost: new device IOTLB API
        vhost: drop vringh dependency
        vhost: convert pre sorted vhost memory array to interval tree
        vhost: introduce vhost memory accessors
        VSOCK: Add Makefile and Kconfig
        VSOCK: Introduce vhost_vsock.ko
        VSOCK: Introduce virtio_transport.ko
        VSOCK: Introduce virtio_vsock_common.ko
        VSOCK: defer sock removal to transports
        VSOCK: transport-specific vsock_transport functions
        vhost: drop vringh dependency
        vop: pull in vhost Kconfig
        virtio: new feature to detect IOMMU device quirk
        balloon: check the number of available pages in leak balloon
        vhost: lockless enqueuing
        vhost: simplify work flushing
      0803e040
    • Linus Torvalds's avatar
      Merge tag 'for-linus' of git://git.kernel.org/pub/scm/virt/kvm/kvm · 80fac0f5
      Linus Torvalds authored
      Pull more KVM updates from Paolo Bonzini:
       - ARM bugfix and MSI injection support
       - x86 nested virt tweak and OOPS fix
       - Simplify pvclock code (vdso bits acked by Andy Lutomirski).
      
      * tag 'for-linus' of git://git.kernel.org/pub/scm/virt/kvm/kvm:
        nvmx: mark ept single context invalidation as supported
        nvmx: remove comment about missing nested vpid support
        KVM: lapic: fix access preemption timer stuff even if kernel_irqchip=off
        KVM: documentation: fix KVM_CAP_X2APIC_API information
        x86: vdso: use __pvclock_read_cycles
        pvclock: introduce seqcount-like API
        arm64: KVM: Set cpsr before spsr on fault injection
        KVM: arm: vgic-irqfd: Workaround changing kvm_set_routing_entry prototype
        KVM: arm/arm64: Enable MSI routing
        KVM: arm/arm64: Enable irqchip routing
        KVM: Move kvm_setup_default/empty_irq_routing declaration in arch specific header
        KVM: irqchip: Convey devid to kvm_set_msi
        KVM: Add devid in kvm_kernel_irq_routing_entry
        KVM: api: Pass the devid in the msi routing entry
      80fac0f5
    • Linus Torvalds's avatar
      Merge branch 'upstream' of git://git.linux-mips.org/pub/scm/ralf/upstream-linus · 4305f424
      Linus Torvalds authored
      Pull MIPS updates from Ralf Baechle:
       "This is the main pull request for MIPS for 4.8.  Also includes is a
        minor SSB cleanup as SSB code traditionally is merged through the MIPS
        tree:
      
        ATH25:
          - MIPS: Add default configuration for ath25
      
        Boot:
          - For zboot, copy appended dtb to the end of the kernel
          - store the appended dtb address in a variable
      
        BPF:
          - Fix off by one error in offset allocation
      
        Cobalt code:
          - Fix typos
      
        Core code:
          - debugfs_create_file returns NULL on error, so don't use IS_ERR for
            testing for errors.
          - Fix double locking issue in RM7000 S-cache code.  This would only
            affect RM7000 ARC systems on reboot.
          - Fix page table corruption on THP permission changes.
          - Use compat_sys_keyctl for 32 bit userspace on 64 bit kernels.
            David says, there are no compatibility issues raised by this fix.
          - Move some signal code around.
          - Rewrite r4k count/compare clockevent device registration such that
            min_delta_ticks/max_delta_ticks files are guaranteed to be
            initialized.
          - Only register r4k count/compare as clockevent device if we can
            assume the clock to be constant.
          - Fix MSA asm warnings in control reg accessors
          - uasm and tlbex fixes and tweaking.
          - Print segment physical address when EU=1.
          - Define AT_VECTOR_SIZE_ARCH for ARCH_DLINFO.
          - CP: Allow booting by VP other than VP 0
          - Cache handling fixes and optimizations for r4k class caches
          - Add hotplug support for R6 processors
          - Cleanup hotplug bits in kconfig
          - traps: return correct si code for accessing nonmapped addresses
          - Remove cpu_has_safe_index_cacheops
      
        Lantiq:
          - Register IRQ handler for virtual IRQ number
          - Fix EIU interrupt loading code
          - Use the real EXIN count
          - Fix build error.
      
        Loongson 3:
          - Increase HPET_MIN_PROG_DELTA and decrease HPET_MIN_CYCLES
      
        Octeon:
          - Delete built-in DTB pruning code for D-Link DSR-1000N.
          - Clean up GPIO definitions in dlink_dsr-1000n.dts.
          - Add more LEDs to the DSR-100n DTS
          - Fix off by one in octeon_irq_gpio_map()
          - Typo fixes
          - Enable SATA by default in cavium_octeon_defconfig
          - Support readq/writeq()
          - Remove forced mappings of USB interrupts.
          - Ensure DMA descriptors are always in the low 4GB
          - Improve USB reset code for OCTEON II.
      
        Pistachio:
          - Add maintainers entry for pistachio SoC Support
          - Remove plat_setup_iocoherency
      
        Ralink:
          - Fix pwm UART in spis group pinmux.
      
        SSB:
          - Change bare unsigned to unsigned int to suit coding style
      
        Tools:
          - Fix reloc tool compiler warnings.
      
        Other:
          - Delete use of ARCH_WANT_OPTIONAL_GPIOLIB"
      
      * 'upstream' of git://git.linux-mips.org/pub/scm/ralf/upstream-linus: (61 commits)
        MIPS: mm: Fix definition of R6 cache instruction
        MIPS: tools: Fix relocs tool compiler warnings
        MIPS: Cobalt: Fix typo
        MIPS: Octeon: Fix typo
        MIPS: Lantiq: Fix build failure
        MIPS: Use CPHYSADDR to implement mips32 __pa
        MIPS: Octeon: Dlink_dsr-1000n.dts: add more leds.
        MIPS: Octeon: Clean up GPIO definitions in dlink_dsr-1000n.dts.
        MIPS: Octeon: Delete built-in DTB pruning code for D-Link DSR-1000N.
        MIPS: store the appended dtb address in a variable
        MIPS: ZBOOT: copy appended dtb to the end of the kernel
        MIPS: ralink: fix spis group pinmux
        MIPS: Factor o32 specific code into signal_o32.c
        MIPS: non-exec stack & heap when non-exec PT_GNU_STACK is present
        MIPS: Use per-mm page to execute branch delay slot instructions
        MIPS: Modify error handling
        MIPS: c-r4k: Use SMP calls for CM indexed cache ops
        MIPS: c-r4k: Avoid small flush_icache_range SMP calls
        MIPS: c-r4k: Local flush_icache_range cache op override
        MIPS: c-r4k: Split r4k_flush_kernel_vmap_range()
        ...
      4305f424
    • Linus Torvalds's avatar
      Merge branch 'perf-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip · db826278
      Linus Torvalds authored
      Pull perf updates from Ingo Molnar:
       "Mostly tooling fixes and some late tooling updates, plus two perf
        related printk message fixes"
      
      * 'perf-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
        perf tests bpf: Use SyS_epoll_wait alias
        perf tests: objdump output can contain multi byte chunks
        perf record: Add --sample-cpu option
        perf hists: Introduce output_resort_cb method
        perf tools: Move config/Makefile into Makefile.config
        perf tests: Add test for bitmap_scnprintf function
        tools lib: Add bitmap_and function
        tools lib: Add bitmap_scnprintf function
        tools lib: Add bitmap_alloc function
        tools lib traceevent: Ignore generated library files
        perf tools: Fix build failure on perl script context
        perf/core: Change log level for duration warning to KERN_INFO
        perf annotate: Plug filename string leak
        perf annotate: Introduce strerror for handling symbol__disassemble() errors
        perf annotate: Rename symbol__annotate() to symbol__disassemble()
        perf/x86: Modify error message in virtualized environment
        perf target: str_error_r() always returns the buffer it receives
        perf annotate: Use pipe + fork instead of popen
        perf evsel: Introduce constructor for cycles event
      db826278
    • Linus Torvalds's avatar
      Merge branch 'x86-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip · c98f5827
      Linus Torvalds authored
      Pull x86 fixes from Ingo Molnar:
       "Two fixes and a cleanup-fix, to the syscall entry code and to ptrace"
      
      * 'x86-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
        x86/syscalls/64: Add compat_sys_keyctl for 32-bit userspace
        x86/ptrace: Stop setting TS_COMPAT in ptrace code
        x86/vdso: Error out if the vDSO isn't a valid DSO
      c98f5827
    • Linus Torvalds's avatar
      Merge tag 'sh-for-4.8' of git://git.libc.org/linux-sh · 1630e843
      Linus Torvalds authored
      Pull arch/sh updates from Rich Felker:
       "These changes improve device tree support (including builtin DTB), add
        support for the J-Core J2 processor, an open source synthesizable
        reimplementation of the SH-2 ISA, resolve a longstanding sigcontext
        ABI mismatch issue, and fix various bugs including nommu-specific
        issues and minor regressions introduced in 4.6.
      
        The J-Core arch support is included here but to be usable it needs
        drivers that are waiting on approval/inclusion from their subsystem
        maintainers"
      
      * tag 'sh-for-4.8' of git://git.libc.org/linux-sh: (23 commits)
        sh: add device tree source for J2 FPGA on Mimas v2 board
        sh: add defconfig for J-Core J2
        sh: use common clock framework with device tree boards
        sh: system call wire up
        sh: Delete unnecessary checks before the function call "mempool_destroy"
        sh: do not perform IPI-based cache flush except on boards that need it
        sh: add SMP support for J2
        sh: SMP support for SH2 entry.S
        sh: add working futex atomic ops on userspace addresses for smp
        sh: add J2 atomics using the cas.l instruction
        sh: add AT_HWCAP flag for J-Core cas.l instruction
        sh: add support for J-Core J2 processor
        sh: fix build regression with CONFIG_OF && !CONFIG_OF_FLATTREE
        sh: allow clocksource drivers to register sched_clock backends
        sh: make heartbeat driver explicitly non-modular
        sh: make board-secureedge5410 explicitly non-modular
        sh: make mm/asids-debugfs explicitly non-modular
        sh: make time.c explicitly non-modular
        sh: fix futex/robust_list on nommu models
        sh: disable aliased page logic on NOMMU models
        ...
      1630e843
    • Linus Torvalds's avatar
      Merge tag 'arm64-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux · 194d6ad3
      Linus Torvalds authored
      Pull arm64 fixes from Will Deacon:
      
       - fix HugeTLB leak due to CoW and PTE_RDONLY mismatch
      
       - avoid accessing unmapped FDT fields when checking validity
      
       - correctly account for vDSO AUX entry in ARCH_DLINFO
      
       - fix kallsyms with absolute expressions in linker script
      
       - kill unnecessary symbol-based relocs in vmlinux
      
      * tag 'arm64-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux:
        arm64: Fix copy-on-write referencing in HugeTLB
        arm64: mm: avoid fdt_check_header() before the FDT is fully mapped
        arm64: Define AT_VECTOR_SIZE_ARCH for ARCH_DLINFO
        arm64: relocatable: suppress R_AARCH64_ABS64 relocations in vmlinux
        arm64: vmlinux.lds: make __rela_offset and __dynsym_offset ABSOLUTE
      194d6ad3
    • Linus Torvalds's avatar
      Merge tag 'pwm/for-4.8-rc1' of... · a157b3aa
      Linus Torvalds authored
      Merge tag 'pwm/for-4.8-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/thierry.reding/linux-pwm
      
      Pull pwm updates from Thierry Reding:
       "This set of changes improve some aspects of the atomic API as well as
        make use of this new API in the regulator framework to allow properly
        dealing with critical regulators controlled by a PWM.
      
        Aside from that there's a bunch of updates and cleanups for existing
        drivers, as well as the addition of new drivers for the Broadcom
        iProc, STMPE and ChromeOS EC controllers"
      
      * tag 'pwm/for-4.8-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/thierry.reding/linux-pwm: (44 commits)
        regulator: pwm: Document pwm-dutycycle-unit and pwm-dutycycle-range
        regulator: pwm: Support extra continuous mode cases
        pwm: Add ChromeOS EC PWM driver
        dt-bindings: pwm: Add binding for ChromeOS EC PWM
        mfd: cros_ec: Add EC_PWM function definitions
        mfd: cros_ec: Add cros_ec_cmd_xfer_status() helper
        pwm: atmel: Use of_device_get_match_data()
        pwm: atmel: Fix checkpatch warnings
        pwm: atmel: Fix disabling of PWM channels
        dt-bindings: pwm: Add R-Car H3 device tree bindings
        pwm: rcar: Use ARCH_RENESAS
        pwm: tegra: Add support for Tegra186
        dt-bindings: pwm: tegra: Add compatible string for Tegra186
        pwm: tegra: Avoid overflow when calculating duty cycle
        pwm: tegra: Allow 100 % duty cycle
        pwm: tegra: Add support for reset control
        pwm: tegra: Rename mmio_base to regs
        pwm: tegra: Remove useless padding
        pwm: tegra: Drop NUM_PWM macro
        pwm: lpc32xx: Set PWM_PIN_LEVEL bit to default value
        ...
      a157b3aa
    • Linus Torvalds's avatar
      Merge tag 'ntb-4.8' of git://github.com/jonmason/ntb · 32199ec3
      Linus Torvalds authored
      Pull NTB updates from Jon Mason:
       "NTB bug fixes for the ntb_tool and ntb_perf, and improvements to the
        ntb_perf and ntb_pingpong for increased debugability.
      
        Also, modification to the ntb_transport layer to increase/decrease
        the number of transport entries depending on the ring size"
      
      * tag 'ntb-4.8' of git://github.com/jonmason/ntb:
        NTB: ntb_hw_intel: use local variable pdev
        NTB: ntb_hw_intel: show BAR size in debugfs info
        ntb_test: Add a selftest script for the NTB subsystem
        ntb_perf: clear link_is_up flag when the link goes down.
        ntb_pingpong: Add a debugfs file to get the ping count
        ntb_tool: Add link status and files to debugfs
        ntb_tool: Postpone memory window initialization for the user
        ntb_perf: Wait for link before running test
        ntb_perf: Return results by reading the run file
        ntb_perf: Improve thread handling to increase robustness
        ntb_perf: Schedule based on time not on performance
        ntb_transport: Check the number of spads the hardware supports
        ntb_tool: Add memory window debug support
        ntb_perf: Allow limiting the size of the memory windows
        NTB: allocate number transport entries depending on size of ring size
        ntb_tool: BUG: Ensure the buffer size is large enough to return all spads
        ntb_tool: Fix infinite loop bug when writing spad/peer_spad file
      32199ec3
    • Linus Torvalds's avatar
      Merge tag 'pstore-v4.8-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/kees/linux · a02040d8
      Linus Torvalds authored
      Pull pstore fixes from Kees Cook:
       "Fixes for pstore ramoops driver to catch bad kfree() and to use better
        DT bindings"
      
      * tag 'pstore-v4.8-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/kees/linux:
        ramoops: use persistent_ram_free() instead of kfree() for freeing prz
        ramoops: use DT reserved-memory bindings
      a02040d8
    • Linus Torvalds's avatar
      Merge tag 'scsi-misc' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi · 0603006b
      Linus Torvalds authored
      Pull SCSI fixes from James Bottomley:
       "This is seven basic fixes (plus one MAINTAINER update) which came in
        close to the merge window"
      
      * tag 'scsi-misc' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi:
        ipr: Fix error return code in ipr_probe_ioa()
        fcoe: add missing destroy_workqueue() on error in fcoe_init()
        lpfc: Fix possible NULL pointer dereference
        fcoe: Use default VLAN for FIP VLAN discovery
        ipr: Wait to do async scan until scsi host is initialized
        MAINTAINERS: Update cxlflash maintainers
        cxlflash: Verify problem state area is mapped before notifying shutdown
        lpfc: fix oops in lpfc_sli4_scmd_to_wqidx_distr() from lpfc_send_taskmgmt()
      0603006b
    • Linus Torvalds's avatar
      Merge tag 'dm-4.8-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/device-mapper/linux-dm · d268675c
      Linus Torvalds authored
      Pull device mapper fixes from Mike Snitzer:
      
       - a stable dm-flakey fix to error read IO during the 'down_interval'
      
       - a DM core suspend fix to establish the SUSPENDED flag before dropping
         the SUSPENDING flag
      
       - a blk-mq request-based DM (dm-mq) dm_stop_queue() fix to properly
         stop the blk-mq hw_queues (and cancel pending requeue work); also
         set/clear QUEUE_FLAG_STOPPED when stopping/starting the dm-mq
         request_queue.
      
       - a DM multipath fix to harden locking of in-core state flags in the
         face of concurrent access while handling path failures under heavy
         IO.
      
       - a few small DM raid fixes to edge cases caught with further testing.
      
      * tag 'dm-4.8-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/device-mapper/linux-dm:
        dm raid: fix use of wrong status char during resynchronization
        dm raid: constructor fails on non-zero incompat_features
        dm raid: fix processing of max_recovery_rate constructor flag
        dm: set DMF_SUSPENDED* _before_ clearing DMF_NOFLUSH_SUSPENDING
        dm rq: fix the starting and stopping of blk-mq queues
        dm mpath: add locking to multipath_resume and must_push_back
        dm flakey: error READ bios during the down_interval
      d268675c
    • Linus Torvalds's avatar
      Merge branch 'for-linus' of git://git.kernel.dk/linux-block · fff648da
      Linus Torvalds authored
      Pull block fixes from Jens Axboe:
       "Here's the second round of block updates for this merge window.
      
        It's a mix of fixes for changes that went in previously in this round,
        and fixes in general.  This pull request contains:
      
         - Fixes for loop from Christoph
      
         - A bdi vs gendisk lifetime fix from Dan, worth two cookies.
      
         - A blk-mq timeout fix, when on frozen queues.  From Gabriel.
      
         - Writeback fix from Jan, ensuring that __writeback_single_inode()
           does the right thing.
      
         - Fix for bio->bi_rw usage in f2fs from me.
      
         - Error path deadlock fix in blk-mq sysfs registration from me.
      
         - Floppy O_ACCMODE fix from Jiri.
      
         - Fix to the new bio op methods from Mike.
      
           One more followup will be coming here, ensuring that we don't
           propagate the block types outside of block.  That, and a rename of
           bio->bi_rw is coming right after -rc1 is cut.
      
         - Various little fixes"
      
      * 'for-linus' of git://git.kernel.dk/linux-block:
        mm/block: convert rw_page users to bio op use
        loop: make do_req_filebacked more robust
        loop: don't try to use AIO for discards
        blk-mq: fix deadlock in blk_mq_register_disk() error path
        Include: blkdev: Removed duplicate 'struct request;' declaration.
        Fixup direct bi_rw modifiers
        block: fix bdi vs gendisk lifetime mismatch
        blk-mq: Allow timeouts to run while queue is freezing
        nbd: fix race in ioctl
        block: fix use-after-free in seq file
        f2fs: drop bio->bi_rw manual assignment
        block: add missing group association in bio-cloning functions
        blkcg: kill unused field nr_undestroyed_grps
        writeback: Write dirty times for WB_SYNC_ALL writeback
        floppy: fix open(O_ACCMODE) for ioctl-only open
      fff648da
    • Linus Torvalds's avatar
      Merge tag 'pnp-extra-4.8-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm · 62e6e9ba
      Linus Torvalds authored
      Pull PNP fix from Rafael Wysocki:
       "This fixes build errors due to a missing header file inclusion in
        drivers/pnp/pnpbios/core.c (Randy Dunlap)"
      
      * tag 'pnp-extra-4.8-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm:
        PNP: pnpbios: add header file to fix build errors
      62e6e9ba
    • Linus Torvalds's avatar
      Merge tag 'acpi-extra-4.8-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm · 0524b422
      Linus Torvalds authored
      Pull more ACPI updates from Rafael Wysocki:
       "Two more fixes in ACPI drivers, one in the ACPI EC driver
        (stable-candidate) and one in the ACPI button driver.
      
        Specifics:
      
         - An ACPI EC driver fix from the 4.3 cycle may cause the ACPICA's
           method reentrancy limit to be exceeded for a _Qxx method due to a
           large number of concurrent EC operations, so prevent that from
           happening by moving the EC handling into a separate workqueue with
           a limit on the number of concurrently executed work items (Lv
           Zheng)
      
         - Fix the cleanup code in the ACPI button driver that forgets to
           clear two variables on exit which causes an error to occur on the
           next attmpt to load the driver (Benjamin Tissoires)"
      
      * tag 'acpi-extra-4.8-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm:
        ACPI / EC: Work around method reentrancy limit in ACPICA for _Qxx
        ACPI / button: remove pointer to old lid_sysfs on unbind
      0524b422
    • Linus Torvalds's avatar
      Merge tag 'pm-extra-4.8-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm · 11d8ec40
      Linus Torvalds authored
      Pull more power management updates from Rafael Wysocki:
       "A few more fixes and cleanups in the x86-64 low-level hibernation
        code, PM core, cpufreq (Kconfig and intel_pstate), and the operating
        points framework.
      
        Specifics:
      
         - Prevent the low-level assembly hibernate code on x86-64 from
           referring to __PAGE_OFFSET directly as a symbol which doesn't work
           when the kernel identity mapping base is randomized, in which case
           __PAGE_OFFSET is a variable (Rafael Wysocki).
      
         - Avoid selecting CPU_FREQ_STAT by default as the statistics are not
           required for proper cpufreq operation (Borislav Petkov).
      
         - Add Skylake-X and Broadwell-X IDs to the intel_pstate's list of
           processors where out-of-band (OBB) control of P-states is possible
           and if that is in use, intel_pstate should not attempt to manage
           P-states (Srinivas Pandruvada).
      
         - Drop some unnecessary checks from the wakeup IRQ handling code in
           the PM core (Markus Elfring).
      
         - Reduce the number operating performance point (OPP) lookups in one
           of the OPP framework's helper functions (Jisheng Zhang)"
      
      * tag 'pm-extra-4.8-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm:
        x86/power/64: Do not refer to __PAGE_OFFSET from assembly code
        cpufreq: Do not default-yes CPU_FREQ_STAT
        cpufreq: intel_pstate: Add more out-of-band IDs
        PM / OPP: optimize dev_pm_opp_set_rate() performance a bit
        PM-wakeup: Delete unnecessary checks before three function calls
      11d8ec40
    • Linus Torvalds's avatar
      Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input · 39fada55
      Linus Torvalds authored
      Pull more input updates from Dmitry Torokhov:
       "Two new drivers for touchscreen controllers:
      
         - Silead touchscreen controllers
         - SiS 9200 family touchscreen controllers
      
        and a few driver fixes"
      
      * 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input:
        Input: silead - remove some dead code
        Input: sis-i2c - select CONFIG_CRC_ITU_T
        Input: add driver for SiS 9200 family I2C touchscreen controllers
        Input: ili210x - fix permissions on "calibrate" attribute
        Input: elan_i2c - properly wake up touchpad on ASUS laptops
        Input: add driver for Silead touchscreens
        Input: elantech - fix debug dump of the current packet
        Input: rotary_encoder - support binary encoding of states
        Input: xpad - power off wireless 360 controllers on suspend
        Input: i8042 - break load dependency between atkbd/psmouse and i8042
        Input: synaptics-rmi4 - do not check for NULL when calling of_node_put()
        Input: cros_ec_keyb - cleanup use of dev
      39fada55
    • Linus Torvalds's avatar
      Merge tag 'usb-4.8-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb · f72035fa
      Linus Torvalds authored
      Pull more USB updates from Greg KH:
       "Here are a few more straggler patches for USB for 4.8-rc1.
      
        Most of these are for the usb-serial driver tree.  All of those have
        been in linux-next for a long time, but missed my previous pull
        request to you.
      
        The remaining change is to fix up a staging tree build error, due to
        some USB gadget driver changes that went in.  I put it in this tree as
        it was for a USB driver and people are reporting the build error on
        your tree.
      
        All of these have been in linux-next for this week, and longer for the
        usb-serial changes"
      
      * tag 'usb-4.8-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb:
        staging: emxx_udc: allow modular build
        USB: serial: use variable for status
        USB: serial: option: add support for Telit LE910 PID 0x1206
        USB: serial: cp210x: use kmemdup
        USB: serial: ti_usb_3410_5052: use functions rather than macros
        USB: serial: ti_usb_3410_5052: remove ti_usb_3410_5052.h
        USB: serial: ti_usb_3410_5052: use __packed
        USB: serial: ti_usb_3410_5052: remove useless comments
      f72035fa
  5. 05 Aug, 2016 5 commits