1. 14 Mar, 2018 13 commits
    • Joern Engel's avatar
      btree: avoid variable-length allocations · 8df3aaaf
      Joern Engel authored
      geo->keylen cannot be larger than 4.  So we might as well make
      fixed-size allocations.
      
      Given the one remaining user, geo->keylen cannot even be larger than 1.
      Logfs used to have 64bit and 128bit keys, tcm_qla2xxx only has 32bit
      keys.  But let's not break the code if we don't have to.
      Signed-off-by: default avatarJoern Engel <joern@purestorage.com>
      Signed-off-by: default avatarLinus Torvalds <torvalds@linux-foundation.org>
      8df3aaaf
    • Linus Torvalds's avatar
      Merge branch 'percpu_ref-rcu-audit-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/tj/misc · fed8f509
      Linus Torvalds authored
      Pull percpu_ref rcu fixes from Tejun Heo:
       "Jann Horn found that aio was depending on the internal RCU grace
        periods of percpu-ref and that it's broken because aio uses regular
        RCU while percpu_ref uses sched-RCU.
      
        Depending on percpu_ref's internal grace periods isn't a good idea
        because
      
         - The RCU type might not match.
      
         - percpu_ref's grace periods are used to switch to atomic mode. They
           aren't between the last put and the invocation of the last release.
           This is easy to get confused about and can lead to subtle bugs.
      
         - percpu_ref might not have grace periods at all depending on its
           current operation mode.
      
        This patchset audits and fixes percpu_ref users for their RCU usages"
      
      [ There's a continuation of this series that clarifies percpu_ref
        documentation that the internal grace periods must not be depended
        upon, and introduces rcu_work to simplify bouncing to a workqueue
        after an RCU grace period.
      
        That will go in for 4.17 - this is just the minimal set with the fixes
        that are tagged for -stable ]
      
      * 'percpu_ref-rcu-audit-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/tj/misc:
        RDMAVT: Fix synchronization around percpu_ref
        fs/aio: Use RCU accessors for kioctx_table->table[]
        fs/aio: Add explicit RCU grace period when freeing kioctx
      fed8f509
    • Ard Biesheuvel's avatar
      Revert "mm/page_alloc: fix memmap_init_zone pageblock alignment" · 3e04040d
      Ard Biesheuvel authored
      This reverts commit 864b75f9.
      
      Commit 864b75f9 ("mm/page_alloc: fix memmap_init_zone pageblock
      alignment") modified the logic in memmap_init_zone() to initialize
      struct pages associated with invalid PFNs, to appease a VM_BUG_ON()
      in move_freepages(), which is redundant by its own admission, and
      dereferences struct page fields to obtain the zone without checking
      whether the struct pages in question are valid to begin with.
      
      Commit 864b75f9 only makes it worse, since the rounding it does
      may cause pfn assume the same value it had in a prior iteration of
      the loop, resulting in an infinite loop and a hang very early in the
      boot. Also, since it doesn't perform the same rounding on start_pfn
      itself but only on intermediate values following an invalid PFN, we
      may still hit the same VM_BUG_ON() as before.
      
      So instead, let's fix this at the core, and ensure that the BUG
      check doesn't dereference struct page fields of invalid pages.
      
      Fixes: 864b75f9 ("mm/page_alloc: fix memmap_init_zone pageblock alignment")
      Tested-by: default avatarJan Glauber <jglauber@cavium.com>
      Tested-by: default avatarShanker Donthineni <shankerd@codeaurora.org>
      Cc: Daniel Vacek <neelx@redhat.com>
      Cc: Mel Gorman <mgorman@techsingularity.net>
      Cc: Michal Hocko <mhocko@suse.com>
      Cc: Paul Burton <paul.burton@imgtec.com>
      Cc: Pavel Tatashin <pasha.tatashin@oracle.com>
      Cc: Vlastimil Babka <vbabka@suse.cz>
      Cc: Andrew Morton <akpm@linux-foundation.org>
      Signed-off-by: default avatarArd Biesheuvel <ard.biesheuvel@linaro.org>
      Signed-off-by: default avatarLinus Torvalds <torvalds@linux-foundation.org>
      3e04040d
    • Linus Torvalds's avatar
      Merge tag 'platform-drivers-x86-v4.16-7' of git://git.infradead.org/linux-platform-drivers-x86 · 274a1ff0
      Linus Torvalds authored
      Pull x86 platform drives fixes from Darren Hart:
      
       - DELL_SMBIOS conditionally depends on ACPI_WMI in the same way it
         depends on DCDBAS, update the Kconfig accordingly.
      
       - fix the dell driver init order to ensure that the driver dependencies
         are met, avoiding race conditions resulting in boot failure on
         certain systems when the drivers are built-in.
      
      * tag 'platform-drivers-x86-v4.16-7' of git://git.infradead.org/linux-platform-drivers-x86:
        platform/x86: Fix dell driver init order
        platform/x86: dell-smbios: Resolve dependency error on ACPI_WMI
      274a1ff0
    • Tejun Heo's avatar
      RDMAVT: Fix synchronization around percpu_ref · 74b44bbe
      Tejun Heo authored
      rvt_mregion uses percpu_ref for reference counting and RCU to protect
      accesses from lkey_table.  When a rvt_mregion needs to be freed, it
      first gets unregistered from lkey_table and then rvt_check_refs() is
      called to wait for in-flight usages before the rvt_mregion is freed.
      
      rvt_check_refs() seems to have a couple issues.
      
      * It has a fast exit path which tests percpu_ref_is_zero().  However,
        a percpu_ref reading zero doesn't mean that the object can be
        released.  In fact, the ->release() callback might not even have
        started executing yet.  Proceeding with freeing can lead to
        use-after-free.
      
      * lkey_table is RCU protected but there is no RCU grace period in the
        free path.  percpu_ref uses RCU internally but it's sched-RCU whose
        grace periods are different from regular RCU.  Also, it generally
        isn't a good idea to depend on internal behaviors like this.
      
      To address the above issues, this patch removes the fast exit and adds
      an explicit synchronize_rcu().
      Signed-off-by: default avatarTejun Heo <tj@kernel.org>
      Acked-by: default avatarDennis Dalessandro <dennis.dalessandro@intel.com>
      Cc: Mike Marciniszyn <mike.marciniszyn@intel.com>
      Cc: linux-rdma@vger.kernel.org
      Cc: Linus Torvalds <torvalds@linux-foundation.org>
      74b44bbe
    • Tejun Heo's avatar
      fs/aio: Use RCU accessors for kioctx_table->table[] · d0264c01
      Tejun Heo authored
      While converting ioctx index from a list to a table, db446a08
      ("aio: convert the ioctx list to table lookup v3") missed tagging
      kioctx_table->table[] as an array of RCU pointers and using the
      appropriate RCU accessors.  This introduces a small window in the
      lookup path where init and access may race.
      
      Mark kioctx_table->table[] with __rcu and use the approriate RCU
      accessors when using the field.
      Signed-off-by: default avatarTejun Heo <tj@kernel.org>
      Reported-by: default avatarJann Horn <jannh@google.com>
      Fixes: db446a08 ("aio: convert the ioctx list to table lookup v3")
      Cc: Benjamin LaHaise <bcrl@kvack.org>
      Cc: Linus Torvalds <torvalds@linux-foundation.org>
      Cc: stable@vger.kernel.org # v3.12+
      d0264c01
    • Tejun Heo's avatar
      fs/aio: Add explicit RCU grace period when freeing kioctx · a6d7cff4
      Tejun Heo authored
      While fixing refcounting, e34ecee2 ("aio: Fix a trinity splat")
      incorrectly removed explicit RCU grace period before freeing kioctx.
      The intention seems to be depending on the internal RCU grace periods
      of percpu_ref; however, percpu_ref uses a different flavor of RCU,
      sched-RCU.  This can lead to kioctx being freed while RCU read
      protected dereferences are still in progress.
      
      Fix it by updating free_ioctx() to go through call_rcu() explicitly.
      
      v2: Comment added to explain double bouncing.
      Signed-off-by: default avatarTejun Heo <tj@kernel.org>
      Reported-by: default avatarJann Horn <jannh@google.com>
      Fixes: e34ecee2 ("aio: Fix a trinity splat")
      Cc: Kent Overstreet <kent.overstreet@gmail.com>
      Cc: Linus Torvalds <torvalds@linux-foundation.org>
      Cc: stable@vger.kernel.org # v3.13+
      a6d7cff4
    • Darren Hart (VMware)'s avatar
      platform/x86: Fix dell driver init order · 49368c13
      Darren Hart (VMware) authored
      Update the initcall ordering to satisfy the following dependency
      ordering:
      
      1. DCDBAS, ACPI_WMI
      2. DELL_SMBIOS, DELL_RBTN
      3. DELL_LAPTOP, DELL_WMI
      
      By assigning them to the following initcall levels:
      
      subsys_initcall: DCDBAS, ACPI_WMI
      module_init: DELL_SMBIOS, DELL_RBTN
      late_initcall: DELL_LAPTOP, DELL_WMI
      
      Cc: Dominik Brodowski <linux@dominikbrodowski.net>
      Cc: Mario.Limonciello@dell.com
      Signed-off-by: default avatarDarren Hart (VMware) <dvhart@infradead.org>
      49368c13
    • Darren Hart's avatar
      platform/x86: dell-smbios: Resolve dependency error on ACPI_WMI · 75073a64
      Darren Hart authored
      Similarly to DCDBAS for DELL_SMBIOS_SMM, if DELL_SMBIOS_WMI is enabled,
      DELL_SMBIOS becomes dependent on ACPI_WMI. Update the depends lines to
      prevent a configuration where DELL_SMBIOS=y and either backend
      dependency =m. Update the comment accordingly.
      
      Cc: Mario Limonciello <mario.limonciello@dell.com>
      Cc: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
      Cc: Dominik Brodowski <linux@dominikbrodowski.net>
      Signed-off-by: default avatarDarren Hart (VMware) <dvhart@infradead.org>
      75073a64
    • Linus Torvalds's avatar
      Merge tag 'usb-4.16-rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb · 3032f8c5
      Linus Torvalds authored
      Pull USB fixes from Greg KH:
       "Here are a small clump of USB fixes for 4.16-rc6.
      
        Nothing major, just a number of fixes in lots of different drivers, as
        well as a PHY driver fix that snuck into this tree. Full details are
        in the shortlog.
      
        All of these have been in linux-next with no reported issues"
      
      * tag 'usb-4.16-rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb: (22 commits)
        usb: musb: Fix external abort in musb_remove on omap2430
        phy: qcom-ufs: add MODULE_LICENSE tag
        usb: typec: tcpm: fusb302: Do not log an error on -EPROBE_DEFER
        USB: OHCI: Fix NULL dereference in HCDs using HCD_LOCAL_MEM
        usbip: vudc: fix null pointer dereference on udc->lock
        xhci: Fix front USB ports on ASUS PRIME B350M-A
        usb: host: xhci-plat: revert "usb: host: xhci-plat: enable clk in resume timing"
        usb: usbmon: Read text within supplied buffer size
        usb: host: xhci-rcar: add support for r8a77965
        USB: storage: Add JMicron bridge 152d:2567 to unusual_devs.h
        usb: xhci: dbc: Fix lockdep warning
        xhci: fix endpoint context tracer output
        Revert "typec: tcpm: Only request matching pdos"
        usb: musb: call pm_runtime_{get,put}_sync before reading vbus registers
        usb: quirks: add control message delay for 1b1c:1b20
        uas: fix comparison for error code
        usb: gadget: udc: renesas_usb3: add binging for r8a77965
        usb: renesas_usbhs: add binding for r8a77965
        usb: dwc2: fix STM32F7 USB OTG HS compatible
        dt-bindings: usb: fix the STM32F7 DWC2 OTG HS core binding
        ...
      3032f8c5
    • Linus Torvalds's avatar
      Merge tag 'tty-4.16-rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/tty · 6560ca4a
      Linus Torvalds authored
      Pull tty/serial driver fixes from Greg KH:
       "Here are some small tty core and serial driver fixes for 4.16-rc6.
      
        They resolve some newly reported bugs, as well as some very old ones,
        which is always nice to see. There is also a new device id added in
        here for good measure.
      
        All of these have been in linux-next for a while with no reported
        issues"
      
      * tag 'tty-4.16-rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/tty:
        serial: imx: fix bogus dev_err
        serial: sh-sci: prevent lockup on full TTY buffers
        serial: 8250_pci: Add Brainboxes UC-260 4 port serial device
        earlycon: add reg-offset to physical address before mapping
        serial: core: mark port as initialized in autoconfig
        serial: 8250_pci: Don't fail on multiport card class
        tty/serial: atmel: add new version check for usart
        tty: make n_tty_read() always abort if hangup is in progress
      6560ca4a
    • Linus Torvalds's avatar
      Merge tag 'staging-4.16-rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/staging · 5e15d39f
      Linus Torvalds authored
      Pull staging fixes from Greg KH:
       "Here are three staging driver fixes for 4.16-rc6
      
        Two of them are lockdep fixes for the ashmem driver that have been
        reported by a number of people recently. The last one is a fix for the
        comedi driver core.
      
        All of these have been in linux-next for a while with no reported
        issues"
      
      * tag 'staging-4.16-rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/staging:
        staging: android: ashmem: Fix possible deadlock in ashmem_ioctl
        staging: comedi: fix comedi_nsamples_left.
        staging: android: ashmem: Fix lockdep issue during llseek
      5e15d39f
    • Linus Torvalds's avatar
      Merge tag 'auxdisplay-for-linus-v4.16-rc6' of git://github.com/ojeda/linux · 1a7f7496
      Linus Torvalds authored
      Pull auxdisplay fixes from Miguel Ojeda:
       "Silence a few warnings in auxdisplay.
      
         - a couple of uninitialized warnings reported by the build service
      
         - a doc comment warning under W=1
      
         - three fall-through comments not recognized under W=1"
      
      * tag 'auxdisplay-for-linus-v4.16-rc6' of git://github.com/ojeda/linux:
        auxdisplay: img-ascii-lcd: Silence 2 uninitialized warnings
        auxdisplay: img-ascii-lcd: Fix doc comment to silence warnings
        auxdisplay: panel: Change comments to silence fallthrough warnings
      1a7f7496
  2. 13 Mar, 2018 4 commits
  3. 12 Mar, 2018 4 commits
  4. 11 Mar, 2018 8 commits
    • Linus Torvalds's avatar
      Merge branch 'x86-pti-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip · ed58d66f
      Linus Torvalds authored
      Pull x86/pti updates from Thomas Gleixner:
       "Yet another pile of melted spectrum related updates:
      
         - Drop native vsyscall support finally as it causes more trouble than
           benefit.
      
         - Make microcode loading more robust. There were a few issues
           especially related to late loading which are now surfacing because
           late loading of the IB* microcodes addressing spectre issues has
           become more widely used.
      
         - Simplify and robustify the syscall handling in the entry code
      
         - Prevent kprobes on the entry trampoline code which lead to kernel
           crashes when the probe hits before CR3 is updated
      
         - Don't check microcode versions when running on hypervisors as they
           are considered as lying anyway.
      
         - Fix the 32bit objtool build and a coment typo"
      
      * 'x86-pti-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
        x86/kprobes: Fix kernel crash when probing .entry_trampoline code
        x86/pti: Fix a comment typo
        x86/microcode: Synchronize late microcode loading
        x86/microcode: Request microcode on the BSP
        x86/microcode/intel: Look into the patch cache first
        x86/microcode: Do not upload microcode if CPUs are offline
        x86/microcode/intel: Writeback and invalidate caches before updating microcode
        x86/microcode/intel: Check microcode revision before updating sibling threads
        x86/microcode: Get rid of struct apply_microcode_ctx
        x86/spectre_v2: Don't check microcode versions when running under hypervisors
        x86/vsyscall/64: Drop "native" vsyscalls
        x86/entry/64/compat: Save one instruction in entry_INT80_compat()
        x86/entry: Do not special-case clone(2) in compat entry
        x86/syscalls: Use COMPAT_SYSCALL_DEFINEx() macros for x86-only compat syscalls
        x86/syscalls: Use proper syscall definition for sys_ioperm()
        x86/entry: Remove stale syscall prototype
        x86/syscalls/32: Simplify $entry == $compat entries
        objtool: Fix 32-bit build
      ed58d66f
    • Linus Torvalds's avatar
      Merge branch 'timers-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip · 1ad5daa6
      Linus Torvalds authored
      Pull timer fix from Thomas Gleixner:
       "Just a single fix which adds a missing Kconfig dependency to avoid
        unmet dependency warnings"
      
      * 'timers-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
        clocksource/atmel-st: Add 'depends on HAS_IOMEM' to fix unmet dependency
      1ad5daa6
    • Linus Torvalds's avatar
      Merge branch 'ras-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip · ebb3762e
      Linus Torvalds authored
      Pull RAS fixes from Thomas Gleixner:
       "Two small fixes for RAS/MCE:
      
         - Serialize sysfs changes to avoid concurrent modificaiton of
           underlying data
      
         - Add microcode revision to Machine Check records. This should have
           been there forever, but now with the broken microcode versions in
           the wild it has become important"
      
      * 'ras-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
        x86/MCE: Serialize sysfs changes
        x86/MCE: Save microcode revision in machine check records
      ebb3762e
    • Linus Torvalds's avatar
      Merge branch 'perf-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip · 8ad44243
      Linus Torvalds authored
      Pull perf updates from Thomas Gleixner:
       "Another set of perf updates:
      
         - Fix a Skylake Uncore event format declaration
      
         - Prevent perf pipe mode from crahsing which was caused by a missing
           buffer allocation
      
         - Make the perf top popup message which tells the user that it uses
           fallback mode on older kernels a debug message.
      
         - Make perf context rescheduling work correcctly
      
         - Robustify the jump error drawing in perf browser mode so it does
           not try to create references to NULL initialized offset entries
      
         - Make trigger_on() robust so it does not enable the trigger before
           everything is set up correctly to handle it
      
         - Make perf auxtrace respect the --no-itrace option so it does not
           try to queue AUX data for decoding.
      
         - Prevent having different number of field separators in CVS output
           lines when a counter is not supported.
      
         - Make the perf kallsyms man page usage behave like it does for all
           other perf commands.
      
         - Synchronize the kernel headers"
      
      * 'perf-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
        perf/core: Fix ctx_event_type in ctx_resched()
        perf tools: Fix trigger class trigger_on()
        perf auxtrace: Prevent decoding when --no-itrace
        perf stat: Fix CVS output format for non-supported counters
        tools headers: Sync x86's cpufeatures.h
        tools headers: Sync copy of kvm UAPI headers
        perf record: Fix crash in pipe mode
        perf annotate browser: Be more robust when drawing jump arrows
        perf top: Fix annoying fallback message on older kernels
        perf kallsyms: Fix the usage on the man page
        perf/x86/intel/uncore: Fix Skylake UPI event format
      8ad44243
    • Linus Torvalds's avatar
      Merge branch 'locking-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip · 02bf0ef0
      Linus Torvalds authored
      Pull locking fix from Thomas Gleixner:
       "rt_mutex_futex_unlock() grew a new irq-off call site, but the function
        assumes that its always called from irq enabled context.
      
        Use (un)lock_irqsafe() to handle the new call site correctly"
      
      * 'locking-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
        rtmutex: Make rt_mutex_futex_unlock() safe for irq-off callsites
      02bf0ef0
    • Linus Torvalds's avatar
      Merge tag 'dmaengine-fix-4.16-rc5' of git://git.infradead.org/users/vkoul/slave-dma · abeb7521
      Linus Torvalds authored
      Pull dmaengine fixes from Vinod Koul:
       "Two small fixes are for this cycle:
      
         - fix max_chunk_size for rcar-dmac for R-Car Gen3
      
         - fix clock resource of mv_xor_v2"
      
      * tag 'dmaengine-fix-4.16-rc5' of git://git.infradead.org/users/vkoul/slave-dma:
        dmaengine: mv_xor_v2: Fix clock resource by adding a register clock
        dmaengine: rcar-dmac: fix max_chunk_size for R-Car Gen3
      abeb7521
    • Linus Torvalds's avatar
      Merge tag 'gpio-v4.16-3' of git://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-gpio · d43be80a
      Linus Torvalds authored
      Pull GPIO fix from Linus Walleij:
       "This is a single GPIO fix for the v4.16 series affecting the Renesas
        driver, and fixes wakeup from external stuff"
      
      * tag 'gpio-v4.16-3' of git://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-gpio:
        gpio: rcar: Use wakeup_path i.s.o. explicit clock handling
      d43be80a
    • Gregory CLEMENT's avatar
      dmaengine: mv_xor_v2: Fix clock resource by adding a register clock · 3cd2c313
      Gregory CLEMENT authored
      On the CP110 components which are present on the Armada 7K/8K SoC we need
      to explicitly enable the clock for the registers. However it is not
      needed for the AP8xx component, that's why this clock is optional.
      
      With this patch both clock have now a name, but in order to be backward
      compatible, the name of the first clock is not used. It allows to still
      use this clock with a device tree using the old binding.
      Signed-off-by: default avatarGregory CLEMENT <gregory.clement@bootlin.com>
      Reviewed-by: default avatarRob Herring <robh@kernel.org>
      Signed-off-by: default avatarVinod Koul <vinod.koul@intel.com>
      3cd2c313
  5. 10 Mar, 2018 11 commits
    • Linus Torvalds's avatar
      Merge tag 'kbuild-fixes-v4.16-2' of... · 3266b5bd
      Linus Torvalds authored
      Merge tag 'kbuild-fixes-v4.16-2' of git://git.kernel.org/pub/scm/linux/kernel/git/masahiroy/linux-kbuild
      
      Pull Kbuild fixes from Masahiro Yamada:
      
       - make fixdep parse kconfig.h to fix missing rebuild
      
       - replace hyphens with underscores in builtin DTB label names
      
       - fix typos
      
      * tag 'kbuild-fixes-v4.16-2' of git://git.kernel.org/pub/scm/linux/kernel/git/masahiroy/linux-kbuild:
        kbuild: Handle builtin dtb file names containing hyphens
        scripts/bloat-o-meter: fix typos in help
        fixdep: do not ignore kconfig.h
        fixdep: remove some false CONFIG_ matches
        fixdep: remove stale references to uml-config.h
      3266b5bd
    • Linus Torvalds's avatar
      Merge tag 'linux-watchdog-4.16-fixes-2' of git://www.linux-watchdog.org/linux-watchdog · 23b33acc
      Linus Torvalds authored
      Pull watchdog fixes from Wim Van Sebroeck:
      
       - f71808e_wdt: Fix magic close handling
      
       - sbsa: 32-bit read fix for WCV
      
       - hpwdt: Remove legacy NMI sourcing
      
      * tag 'linux-watchdog-4.16-fixes-2' of git://www.linux-watchdog.org/linux-watchdog:
        watchdog: hpwdt: Remove legacy NMI sourcing.
        watchdog: sbsa: use 32-bit read for WCV
        watchdog: f71808e_wdt: Fix magic close handling
      23b33acc
    • Linus Torvalds's avatar
      Merge tag 'for-linus-20180309' of git://git.kernel.dk/linux-block · 91a26209
      Linus Torvalds authored
      Pull block fixes from Jens Axboe:
      
       - a xen-blkfront fix from Bhavesh with a multiqueue fix when
         detaching/re-attaching
      
       - a few important NVMe fixes, including a revert for a sysfs fix that
         caused some user space confusion
      
       - two bcache fixes by way of Michael Lyle
      
       - a loop regression fix, fixing an issue with lost writes on DAX.
      
      * tag 'for-linus-20180309' of git://git.kernel.dk/linux-block:
        loop: Fix lost writes caused by missing flag
        nvme_fc: rework sqsize handling
        nvme-fabrics: Ignore nr_io_queues option for discovery controllers
        xen-blkfront: move negotiate_mq to cover all cases of new VBDs
        Revert "nvme: create 'slaves' and 'holders' entries for hidden controllers"
        bcache: don't attach backing with duplicate UUID
        bcache: fix crashes in duplicate cache device register
        nvme: pci: pass max vectors as num_possible_cpus() to pci_alloc_irq_vectors
        nvme-pci: Fix EEH failure on ppc
      91a26209
    • Linus Torvalds's avatar
      Merge tag 'for-4.16/dm-fixes-2' of... · b3b25b1d
      Linus Torvalds authored
      Merge tag 'for-4.16/dm-fixes-2' of git://git.kernel.org/pub/scm/linux/kernel/git/device-mapper/linux-dm
      
      Pull device mapper fixes from Mike Snitzer:
      
       - Fix an uninitialized variable false warning in dm bufio
      
       - Fix DM's passthrough ioctl support to be race free against an
         underlying device being removed.
      
       - Fix corner-case of DM raid resync reporting if/when the raid becomes
         degraded during resync; otherwise automated raid repair will fail.
      
       - A few DM multipath fixes to make non-SCSI optimizations, that were
         introduced during the 4.16 merge, useful for all non-SCSI devices,
         rather than narrowly define this non-SCSI mode in terms of "nvme".
      
         This allows the removal of "queue_mode nvme" that really didn't need
         to be introduced. Instead DM core will internalize whether
         nvme-specific IO submission optimizations are doable and DM multipath
         will only do SCSI-specific device handler operations if SCSI is in
         use.
      
      * tag 'for-4.16/dm-fixes-2' of git://git.kernel.org/pub/scm/linux/kernel/git/device-mapper/linux-dm:
        dm table: allow upgrade from bio-based to specialized bio-based variant
        dm mpath: remove unnecessary NVMe branching in favor of scsi_dh checks
        dm table: fix "nvme" test
        dm raid: fix incorrect sync_ratio when degraded
        dm: use blkdev_get rather than bdgrab when issuing pass-through ioctl
        dm bufio: avoid false-positive Wmaybe-uninitialized warning
      b3b25b1d
    • Linus Torvalds's avatar
      Merge tag 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/rdma/rdma · 2f64e70c
      Linus Torvalds authored
      Pull rdma fixes from Doug Ledford:
      
       - Various driver bug fixes in mlx5, mlx4, bnxt_re and qedr, ranging
         from bugs under load to bad error case handling
      
       - There in one largish patch fixing the locking in bnxt_re to avoid a
         machine hard lock situation
      
       - A few core bugs on error paths
      
       - A patch to reduce stack usage in the new CQ API
      
       - One mlx5 regression introduced in this merge window
      
       - There were new syzkaller scripts written for the RDMA subsystem and
         we are fixing issues found by the bot
      
       - One of the commits (aa0de36a “RDMA/mlx5: Fix integer overflow
         while resizing CQ”) is missing part of the commit log message and one
         of the SOB lines. The original patch was from Leon Romanovsky, and a
         cut-n-paste separator in the commit message confused patchworks which
         then put the end of message separator in the wrong place in the
         downloaded patch, and I didn’t notice in time. The patch made it into
         the official branch, and the only way to fix it in-place was to
         rebase. Given the pain that a rebase causes, and the fact that the
         patch has relevant tags for stable and syzkaller, a revert of the
         munged patch and a reapplication of the original patch with the log
         message intact was done.
      
      * tag 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/rdma/rdma: (25 commits)
        RDMA/mlx5: Fix integer overflow while resizing CQ
        Revert "RDMA/mlx5: Fix integer overflow while resizing CQ"
        RDMA/ucma: Check that user doesn't overflow QP state
        RDMA/mlx5: Fix integer overflow while resizing CQ
        RDMA/ucma: Limit possible option size
        IB/core: Fix possible crash to access NULL netdev
        RDMA/bnxt_re: Avoid Hard lockup during error CQE processing
        RDMA/core: Reduce poll batch for direct cq polling
        IB/mlx5: Fix an error code in __mlx5_ib_modify_qp()
        IB/mlx5: When not in dual port RoCE mode, use provided port as native
        IB/mlx4: Include GID type when deleting GIDs from HW table under RoCE
        IB/mlx4: Fix corruption of RoCEv2 IPv4 GIDs
        RDMA/qedr: Fix iWARP write and send with immediate
        RDMA/qedr: Fix kernel panic when running fio over NFSoRDMA
        RDMA/qedr: Fix iWARP connect with port mapper
        RDMA/qedr: Fix ipv6 destination address resolution
        IB/core : Add null pointer check in addr_resolve
        RDMA/bnxt_re: Fix the ib_reg failure cleanup
        RDMA/bnxt_re: Fix incorrect DB offset calculation
        RDMA/bnxt_re: Unconditionly fence non wire memory operations
        ...
      2f64e70c
    • Linus Torvalds's avatar
      Merge tag 'platform-drivers-x86-v4.16-6' of git://git.infradead.org/linux-platform-drivers-x86 · b3337a6c
      Linus Torvalds authored
      Pull x86 platform driver fixes from Darren Hart:
       "Correct a module loading race condition between the DELL_SMBIOS
        backend modules and the first user by converting them to bool features
        of the DELL_SMBIOS driver. Fixup the resulting Kconfig dependency
        issue with DCDBAS"
      
      * tag 'platform-drivers-x86-v4.16-6' of git://git.infradead.org/linux-platform-drivers-x86:
        platform/x86: dell-smbios: Resolve dependency error on DCDBAS
        platform/x86: Allow for SMBIOS backend defaults
        platform/x86: dell-smbios: Link all dell-smbios-* modules together
        platform/x86: dell-smbios: Rename dell-smbios source to dell-smbios-base
        platform/x86: dell-smbios: Correct some style warnings
      b3337a6c
    • Linus Torvalds's avatar
      Merge tag 'for-linus' of git://git.kernel.org/pub/scm/virt/kvm/kvm · cdb06e9d
      Linus Torvalds authored
      Pull KVM fixes from Radim Krčmář:
       "PPC:
      
         - Fix guest time accounting in the host
      
         - Fix large-page backing for radix guests on POWER9
      
         - Fix HPT guests on POWER9 backed by 2M or 1G pages
      
         - Compile fixes for some configs and gcc versions
      
        s390:
      
         - Fix random memory corruption when running as guest2 (e.g. KVM in
           LPAR) and starting guest3 (e.g. nested KVM) with many CPUs
      
         - Export forgotten io interrupt delivery statistics counter"
      
      * tag 'for-linus' of git://git.kernel.org/pub/scm/virt/kvm/kvm:
        KVM: s390: fix memory overwrites when not using SCA entries
        KVM: PPC: Book3S HV: Fix guest time accounting with VIRT_CPU_ACCOUNTING_GEN
        KVM: PPC: Book3S HV: Fix VRMA initialization with 2MB or 1GB memory backing
        KVM: PPC: Book3S HV: Fix handling of large pages in radix page fault handler
        KVM: s390: provide io interrupt kvm_stat
        KVM: PPC: Book3S: Fix compile error that occurs with some gcc versions
        KVM: PPC: Fix compile error that occurs when CONFIG_ALTIVEC=n
      cdb06e9d
    • Linus Torvalds's avatar
      Merge tag 'for-linus-4.16a-rc5-tag' of git://git.kernel.org/pub/scm/linux/kernel/git/xen/tip · 39614481
      Linus Torvalds authored
      Pull xen fix from Juergen Gross:
       "Just one fix for the correct error handling after a failed
        device_register()"
      
      * tag 'for-linus-4.16a-rc5-tag' of git://git.kernel.org/pub/scm/linux/kernel/git/xen/tip:
        xen: xenbus: use put_device() instead of kfree()
      39614481
    • Linus Torvalds's avatar
      Merge tag 'arm64-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux · 4178802c
      Linus Torvalds authored
      Pull arm64 fixes from Catalin Marinas:
      
       - The SMCCC firmware interface for the spectre variant 2 mitigation has
         been updated to allow the discovery of whether the CPU needs the
         workaround. This pull request relaxes the kernel check on the return
         value from firmware.
      
       - Fix the commit allowing changing from global to non-global page table
         entries which inadvertently disallowed other safe attribute changes.
      
       - Fix sleeping in atomic during the arm_perf_teardown_cpu() code.
      
      * tag 'arm64-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux:
        arm64: Relax ARM_SMCCC_ARCH_WORKAROUND_1 discovery
        arm_pmu: Use disable_irq_nosync when disabling SPI in CPU teardown hook
        arm64: mm: fix thinko in non-global page table attribute check
      4178802c
    • Linus Torvalds's avatar
      Merge tag 'docs-4.16-fix' of git://git.lwn.net/linux · ed3c4dff
      Linus Torvalds authored
      Pull Documentation build fix from Jonathan Corbet:
       "The Sphinx 1.7 release broke the build process for reasons that are
        mostly our fault.
      
        This is a single fix cherry-picked from docs-next that restores docs
        buildability for all supported Sphinx versions"
      
      * tag 'docs-4.16-fix' of git://git.lwn.net/linux:
        Documentation/sphinx: Fix Directive import error
      ed3c4dff
    • Linus Torvalds's avatar
      Merge branch 'akpm' (patches from Andrew) · cfc79ae8
      Linus Torvalds authored
      Merge misc fixes from Andrew Morton:
       "8 fixes"
      
      * emailed patches from Andrew Morton <akpm@linux-foundation.org>:
        lib/test_kmod.c: fix limit check on number of test devices created
        selftests/vm/run_vmtests: adjust hugetlb size according to nr_cpus
        mm/page_alloc: fix memmap_init_zone pageblock alignment
        mm/memblock.c: hardcode the end_pfn being -1
        mm/gup.c: teach get_user_pages_unlocked to handle FOLL_NOWAIT
        lib/bug.c: exclude non-BUG/WARN exceptions from report_bug()
        bug: use %pB in BUG and stack protector failure
        hugetlb: fix surplus pages accounting
      cfc79ae8