1. 22 Aug, 2019 1 commit
  2. 20 Aug, 2019 5 commits
    • Jens Axboe's avatar
      io_uring: don't enter poll loop if we have CQEs pending · a3a0e43f
      Jens Axboe authored
      We need to check if we have CQEs pending before starting a poll loop,
      as those could be the events we will be spinning for (and hence we'll
      find none). This can happen if a CQE triggers an error, or if it is
      found by eg an IRQ before we get a chance to find it through polling.
      Signed-off-by: default avatarJens Axboe <axboe@kernel.dk>
    • Mario Limonciello's avatar
      nvme: Add quirk for LiteON CL1 devices running FW 22301111 · cb32de1b
      Mario Limonciello authored
      One of the components in LiteON CL1 device has limitations that
      can be encountered based upon boundary race conditions using the
      nvme bus specific suspend to idle flow.
      When this situation occurs the drive doesn't resume properly from
      LiteON has confirmed this problem and fixed in the next firmware
      version.  As this firmware is already in the field, avoid running
      nvme specific suspend to idle flow.
      Fixes: d916b1be ("nvme-pci: use host managed power state for suspend")
      Link: http://lists.infradead.org/pipermail/linux-nvme/2019-July/thread.html
      Signed-off-by: default avatarMario Limonciello <mario.limonciello@dell.com>
      Signed-off-by: default avatarCharles Hyde <charles.hyde@dellteam.com>
      Reviewed-by: default avatarKeith Busch <kbusch@kernel.org>
      Signed-off-by: default avatarSagi Grimberg <sagi@grimberg.me>
      Signed-off-by: default avatarJens Axboe <axboe@kernel.dk>
    • Guilherme G. Piccoli's avatar
      nvme: Fix cntlid validation when not using NVMEoF · a89fcca8
      Guilherme G. Piccoli authored
      Commit 1b1031ca ("nvme: validate cntlid during controller initialisation")
      introduced a validation for controllers with duplicate cntlid that runs
      on nvme_init_subsystem(). The problem is that the validation relies on
      ctrl->cntlid, and this value is assigned (from id_ctrl value) after the
      call for nvme_init_subsystem() in nvme_init_identify() for non-fabrics
      scenario. That leads to ctrl->cntlid always being 0 in case we have a
      physical set of controllers in the same subsystem.
      This patch fixes that by loading the discovered cntlid id_ctrl value into
      ctrl->cntlid before the subsystem initialization, only for the non-fabrics
      case. The patch was tested with emulated nvme devices (qemu) having two
      controllers in a single subsystem. Without the patch, we couldn't make
      it work failing in the duplicate check; when running with the patch, we
      could see the subsystem holding both controllers.
      For the fabrics case we see ctrl->cntlid has a more intricate relation
      with the admin connect, so we didn't change that.
      Fixes: 1b1031ca
       ("nvme: validate cntlid during controller initialisation")
      Signed-off-by: default avatarGuilherme G. Piccoli <gpiccoli@canonical.com>
      Reviewed-by: default avatarSagi Grimberg <sagi@grimberg.me>
      Signed-off-by: default avatarSagi Grimberg <sagi@grimberg.me>
      Signed-off-by: default avatarJens Axboe <axboe@kernel.dk>
    • Anton Eidelman's avatar
      nvme-multipath: fix possible I/O hang when paths are updated · 504db087
      Anton Eidelman authored
      nvme_state_set_live() making a path available triggers requeue_work
      in order to resubmit requests that ended up on requeue_list when no
      paths were available.
      This requeue_work may race with concurrent nvme_ns_head_make_request()
      that do not observe the live path yet.
      Such concurrent requests may by made by either:
      - New IO submission.
      - Requeue_work triggered by nvme_failover_req() or another ana_work.
      A race may cause requeue_work capture the state of requeue_list before
      more requests get onto the list. These requests will stay on the list
      forever unless requeue_work is triggered again.
      In order to prevent such race, nvme_state_set_live() should
      synchronize_srcu(&head->srcu) before triggering the requeue_work and
      prevent nvme_ns_head_make_request referencing an old snapshot of the
      path list.
      Reviewed-by: default avatarChristoph Hellwig <hch@lst.de>
      Signed-off-by: default avatarAnton Eidelman <anton@lightbitslabs.com>
      Signed-off-by: default avatarSagi Grimberg <sagi@grimberg.me>
      Signed-off-by: default avatarJens Axboe <axboe@kernel.dk>
    • Jens Axboe's avatar
      io_uring: fix potential hang with polled IO · 500f9fba
      Jens Axboe authored
      If a request issue ends up being punted to async context to avoid
      blocking, we can get into a situation where the original application
      enters the poll loop for that very request before it has been issued.
      This should not be an issue, except that the polling will hold the
      io_uring uring_ctx mutex for the duration of the poll. When the async
      worker has actually issued the request, it needs to acquire this mutex
      to add the request to the poll issued list. Since the application
      polling is already holding this mutex, the workqueue sleeps on the
      mutex forever, and the application thus never gets a chance to poll for
      the very request it was interested in.
      Fix this by ensuring that the polling drops the uring_ctx occasionally
      if it's not making any progress.
      Reported-by: default avatarJeffrey M. Birnbaum <jmbnyc@gmail.com>
      Signed-off-by: default avatarJens Axboe <axboe@kernel.dk>
  3. 18 Aug, 2019 11 commits
    • Linus Torvalds's avatar
      Linux 5.3-rc5 · d1abaeb3
      Linus Torvalds authored
    • Linus Torvalds's avatar
      Merge tag 'fixes-for-5.3-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/mtd/linux · 6825e5a6
      Linus Torvalds authored
      Pull MTD fix from Richard Weinberger:
       "A single fix for MTD to correctly set the spi-nor WP pin"
      * tag 'fixes-for-5.3-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/mtd/linux:
        mtd: spi-nor: Fix the disabling of write protection at init
    • Linus Torvalds's avatar
      Merge tag 'for-5.3-rc4-tag' of git://git.kernel.org/pub/scm/linux/kernel/git/kdave/linux · 3039fadf
      Linus Torvalds authored
      Pull btrfs fixes from David Sterba:
       "Two fixes that popped up during testing:
         - fix for sysfs-related code that adds/removes block groups, warnings
           appear during several fstests in connection with sysfs updates in
           5.3, the fix essentially replaces a workaround with scope NOFS and
           applies to 5.2-based branch too
         - add sanity check of trim range"
      * tag 'for-5.3-rc4-tag' of git://git.kernel.org/pub/scm/linux/kernel/git/kdave/linux:
        btrfs: trim: Check the range passed into to prevent overflow
        Btrfs: fix sysfs warning and missing raid sysfs directories
    • Linus Torvalds's avatar
      Merge branch 'x86-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip · c332f3a7
      Linus Torvalds authored
      Pull x86 fixes from Thomas Gleixner:
       "A set of fixes for x86:
         - Fix the inconsistent error handling in the umwait init code
         - Rework the boot param zeroing so gcc9 stops complaining about out
           of bound memset. The resulting source code is actually more sane to
           read than the smart solution we had
         - Maintainers update so Tony gets involved when Intel models are
         - Some more fallthrough fixes"
      * 'x86-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
        x86/boot: Save fields explicitly, zero out everything else
        MAINTAINERS, x86/CPU: Tony Luck will maintain asm/intel-family.h
        x86/fpu/math-emu: Address fallthrough warnings
        x86/apic/32: Fix yet another implicit fallthrough warning
        x86/umwait: Fix error handling in umwait_init()
    • Linus Torvalds's avatar
      Merge branch 'efi-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip · 645c03aa
      Linus Torvalds authored
      Pull EFI fix from Thomas Gleixner:
       "A single fix for a EFI mixed mode regression caused by recent rework
        which did not take the firmware bitwidth into account"
      * 'efi-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
        efi-stub: Fix get_efi_config_table on mixed-mode setups
    • Linus Torvalds's avatar
      Merge tag 'spdx-5.3-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/spdx · 5bba5c9c
      Linus Torvalds authored
      Pull SPDX fixes from Greg KH:
       "Here are four small SPDX fixes for 5.3-rc5.
        A few style fixes for some SPDX comments, added an SPDX tag for one
        file, and fix up some GPL boilerplate for another file.
        All of these have been in linux-next for a few weeks with no reported
        issues (they are comment changes only, so that's to be expected...)"
      * tag 'spdx-5.3-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/spdx:
        i2c: stm32: Use the correct style for SPDX License Identifier
        intel_th: Use the correct style for SPDX License Identifier
        coccinelle: api/atomic_as_refcounter: add SPDX License Identifier
        kernel/configs: Replace GPL boilerplate code with SPDX identifier
    • Linus Torvalds's avatar
      Merge tag 'char-misc-5.3-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc · 4503c0a4
      Linus Torvalds authored
      Pull char/misc driver fixes from Greg KH:
       "Here are some small char and misc driver fixes for 5.3-rc5.
        These are two different subsystems needing some fixes, the habanalabs
        driver which is has some more big endian fixes for problems found. The
        other are some small soundwire fixes, including some Kconfig
        dependencies needed to resolve reported build errors.
        All of these have been in linux-next this week with no reported
      * tag 'char-misc-5.3-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc:
        misc: xilinx-sdfec: fix dependency and build error
        habanalabs: fix device IRQ unmasking for BE host
        habanalabs: fix endianness handling for internal QMAN submission
        habanalabs: fix completion queue handling when host is BE
        habanalabs: fix endianness handling for packets from user
        habanalabs: fix DRAM usage accounting on context tear down
        habanalabs: Avoid double free in error flow
        soundwire: fix regmap dependencies and align with other serial links
        soundwire: cadence_master: fix definitions for INTSTAT0/1
        soundwire: cadence_master: fix register definition for SLAVE_STATE
    • Linus Torvalds's avatar
      Merge tag 'staging-5.3-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/staging · ae1a616a
      Linus Torvalds authored
      Pull staging/IIO fixes from Greg KH:
       "Here are four small staging and iio driver fixes for 5.3-rc5
        Two are for the dt3000 comedi driver for some reported problems found
        in that codebase, and two are some small iio fixes.
        All of these have been in linux-next this week with no reported
      * tag 'staging-5.3-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/staging:
        staging: comedi: dt3000: Fix rounding up of timer divisor
        staging: comedi: dt3000: Fix signed integer overflow 'divider * base'
        iio: adc: max9611: Fix temperature reading in probe
        iio: frequency: adf4371: Fix output frequency setting
    • Linus Torvalds's avatar
      Merge tag 'usb-5.3-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb · 359334ca
      Linus Torvalds authored
      Pull USB fixes from Greg KH:
       "Here are number of small USB fixes for 5.3-rc5.
        Syzbot has been on a tear recently now that it has some good USB
        debugging hooks integrated, so there's a number of fixes in here found
        by those tools for some _very_ old bugs. Also a handful of gadget
        driver fixes for reported issues, some hopefully-final dma fixes for
        host controller drivers, and some new USB serial gadget driver ids.
        All of these have been in linux-next this week with no reported issues
        (the usb-serial ones were in linux-next in its own branch, but merged
        into mine on Friday)"
      * tag 'usb-5.3-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb:
        usb: add a hcd_uses_dma helper
        usb: don't create dma pools for HCDs with a localmem_pool
        usb: chipidea: imx: fix EPROBE_DEFER support during driver probe
        usb: host: fotg2: restart hcd after port reset
        USB: CDC: fix sanity checks in CDC union parser
        usb: cdc-acm: make sure a refcount is taken early enough
        USB: serial: option: add the BroadMobi BM818 card
        USB: serial: option: Add Motorola modem UARTs
        USB: core: Fix races in character device registration and deregistraion
        usb: gadget: mass_storage: Fix races between fsg_disable and fsg_set_alt
        usb: gadget: composite: Clear "suspended" on reset/disconnect
        usb: gadget: udc: renesas_usb3: Fix sysfs interface of "role"
        USB: serial: option: add D-Link DWM-222 device ID
        USB: serial: option: Add support for ZTE MF871A
    • Linus Torvalds's avatar
      Merge tag 'for-linus-2019-08-17' of git://git.kernel.dk/linux-block · 8fde2832
      Linus Torvalds authored
      Pull block fixes from Jens Axboe:
       "A collection of fixes that should go into this series. This contains:
         - Revert of the REQ_NOWAIT_INLINE and associated dio changes. There
           were still corner cases there, and even though I had a solution for
           it, it's too involved for this stage. (me)
         - Set of NVMe fixes (via Sagi)
         - io_uring fix for fixed buffers (Anthony)
         - io_uring defer issue fix (Jackie)
         - Regression fix for queue sync at exit time (zhengbin)
         - xen blk-back memory leak fix (Wenwen)"
      * tag 'for-linus-2019-08-17' of git://git.kernel.dk/linux-block:
        io_uring: fix an issue when IOSQE_IO_LINK is inserted into defer list
        block: remove REQ_NOWAIT_INLINE
        io_uring: fix manual setup of iov_iter for fixed buffers
        xen/blkback: fix memory leaks
        blk-mq: move cancel of requeue_work to the front of blk_exit_queue
        nvme-pci: Fix async probe remove race
        nvme: fix controller removal race with scan work
        nvme-rdma: fix possible use-after-free in connect error flow
        nvme: fix a possible deadlock when passthru commands sent to a multipath device
        nvme-core: Fix extra device_put() call on error path
        nvmet-file: fix nvmet_file_flush() always returning an error
        nvmet-loop: Flush nvme_delete_wq when removing the port
        nvmet: Fix use-after-free bug when a port is removed
        nvme-multipath: revalidate nvme_ns_head gendisk in nvme_validate_ns
    • Linus Torvalds's avatar
      Merge tag 'hyperv-fixes-signed' of git://git.kernel.org/pub/scm/linux/kernel/git/hyperv/linux · 85d8d3b1
      Linus Torvalds authored
      Pull Hyper-V fixes from Sasha Levin:
       - A few fixes for the userspace hyper-v tools from Adrian Vladu.
       - A fix for the hyper-v MAINTAINERs entry from Lan Tianyu.
       - Fix for SPDX license identifier in the userspace tools from Nishad
      * tag 'hyperv-fixes-signed' of git://git.kernel.org/pub/scm/linux/kernel/git/hyperv/linux:
        MAINTAINERS: Fix Hyperv vIOMMU driver file name
        tools: hv: Use the correct style for SPDX License Identifier
        tools: hv: fix typos in toolchain
        tools: hv: fix KVP and VSS daemons exit code
        tools: hv: fixed Python pep8/flake8 warnings for lsvmbus
  4. 17 Aug, 2019 9 commits
  5. 16 Aug, 2019 10 commits
  6. 15 Aug, 2019 4 commits