1. 04 Oct, 2020 1 commit
  2. 03 Oct, 2020 10 commits
  3. 02 Oct, 2020 16 commits
    • Linus Torvalds's avatar
      Merge tag 'pinctrl-v5.9-2' of git://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-pinctrl · d3d45f82
      Linus Torvalds authored
      Pull pin control fixes from Linus Walleij:
       "Some pin control fixes here. All of them are driver fixes, the Intel
        Cherryview being the most interesting one.
         - Fix a mux problem for I2C in the MVEBU driver.
         - Fix a really hairy inversion problem in the Intel Cherryview
         - Fix the register for the sdc2_clk in the Qualcomm SM8250 driver.
         - Check the virtual GPIO boot failur in the Mediatek driver"
      * tag 'pinctrl-v5.9-2' of git://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-pinctrl:
        pinctrl: mediatek: check mtk_is_virt_gpio input parameter
        pinctrl: qcom: sm8250: correct sdc2_clk
        pinctrl: cherryview: Preserve CHV_PADCTRL1_INVRXTX_TXDATA flag on GPIOs
        pinctrl: mvebu: Fix i2c sda definition for 98DX3236
    • Linus Torvalds's avatar
      Merge tag 'pci-v5.9-fixes-2' of git://git.kernel.org/pub/scm/linux/kernel/git/helgaas/pci · 4d9c3a68
      Linus Torvalds authored
      Pull PCI fixes from Bjorn Helgaas:
       - Fix rockchip regression in rockchip_pcie_valid_device() (Lorenzo
       - Add Pali Rohár as aardvark PCI maintainer (Pali Rohár)
      * tag 'pci-v5.9-fixes-2' of git://git.kernel.org/pub/scm/linux/kernel/git/helgaas/pci:
        MAINTAINERS: Add Pali Rohár as aardvark PCI maintainer
        PCI: rockchip: Fix bus checks in rockchip_pcie_valid_device()
    • Linus Torvalds's avatar
      Merge tag 'scsi-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi · cb6f55af
      Linus Torvalds authored
      Pull SCSI fixes from James Bottomley:
       "Two patches in driver frameworks. The iscsi one corrects a bug induced
        by a BPF change to network locking and the other is a regression we
      * tag 'scsi-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi:
        scsi: iscsi: iscsi_tcp: Avoid holding spinlock while calling getpeername()
        scsi: target: Fix lun lookup for TARGET_SCF_LOOKUP_LUN_FROM_TAG case
    • Linus Torvalds's avatar
      Merge tag 'io_uring-5.9-2020-10-02' of git://git.kernel.dk/linux-block · 702bfc89
      Linus Torvalds authored
      Pull io_uring fixes from Jens Axboe:
       - fix for async buffered reads if read-ahead is fully disabled (Hao)
       - double poll match fix
       - ->show_fdinfo() potential ABBA deadlock complaint fix
      * tag 'io_uring-5.9-2020-10-02' of git://git.kernel.dk/linux-block:
        io_uring: fix async buffered reads when readahead is disabled
        io_uring: fix potential ABBA deadlock in ->show_fdinfo()
        io_uring: always delete double poll wait entry on match
    • Linus Torvalds's avatar
      Merge tag 'block-5.9-2020-10-02' of git://git.kernel.dk/linux-block · f016a540
      Linus Torvalds authored
      Pull block fix from Jens Axboe:
       "Single fix for a ->commit_rqs failure case"
      * tag 'block-5.9-2020-10-02' of git://git.kernel.dk/linux-block:
        blk-mq: call commit_rqs while list empty but error happen
    • Linus Torvalds's avatar
      Merge branch 'work.epoll' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs · d4fce2e2
      Linus Torvalds authored
      Pull epoll fixes from Al Viro:
       "Several race fixes in epoll"
      * 'work.epoll' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs:
        ep_create_wakeup_source(): dentry name can change under you...
        epoll: EPOLL_CTL_ADD: close the race in decision to take fast path
        epoll: replace ->visited/visited_list with generation count
        epoll: do not insert into poll queues until all sanity checks are done
    • Linus Torvalds's avatar
      Merge tag 'riscv-for-linus-5.9-rc8' of git://git.kernel.org/pub/scm/linux/kernel/git/riscv/linux · db23baa2
      Linus Torvalds authored
      Pull RISC-V fixes from Palmer Dabbelt:
       "Two fixes for this week:
         - The addition of a symbol export for clint_time_val, which has been
           inlined into some timex functions and can be used by drivers.
         - A fix to avoid calling get_cycles() before the timers have been
        These both only effect !MMU systems"
      * tag 'riscv-for-linus-5.9-rc8' of git://git.kernel.org/pub/scm/linux/kernel/git/riscv/linux:
        RISC-V: Check clint_time_val before use
        clocksource: clint: Export clint_time_val for modules
    • Linus Torvalds's avatar
      Merge tag 'for-5.9-rc7-tag' of git://git.kernel.org/pub/scm/linux/kernel/git/kdave/linux · 4e3b9ce2
      Linus Torvalds authored
      Pull btrfs fixes from David Sterba:
       "Two more fixes.
        One is for a lockdep warning/lockup (also caught by syzbot), that one
        has been seen in practice. Regarding the other syzbot reports
        mentioned last time, they don't seem to be urgent and reliably
        reproducible so they'll be fixed later.
        The second fix is for a potential corruption when device replace
        finishes and the in-memory state of trim is not copied to the new
      * tag 'for-5.9-rc7-tag' of git://git.kernel.org/pub/scm/linux/kernel/git/kdave/linux:
        btrfs: fix filesystem corruption after a device replace
        btrfs: move btrfs_rm_dev_replace_free_srcdev outside of all locks
        btrfs: move btrfs_scratch_superblocks into btrfs_dev_replace_finishing
    • Linus Torvalds's avatar
      Merge tag 'pm-5.9-rc8' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm · c5130911
      Linus Torvalds authored
      Pull power management fixes from Rafael Wysocki:
       "These fix one more issue related to the recent RCU-lockdep changes, a
        typo in documentation and add a missing return statement to
         - Fix up RCU usage for cpuidle on the ARM imx6q platform (Ulf
         - Fix typo in the PM documentation (Yoann Congal)
         - Add return statement that is missing after recent changes in the
           intel_pstate driver (Zhang Rui)"
      * tag 'pm-5.9-rc8' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm:
        ARM: imx6q: Fixup RCU usage for cpuidle
        Documentation: PM: Fix a reStructuredText syntax error
        cpufreq: intel_pstate: Fix missing return statement
    • Linus Torvalds's avatar
      Merge tag 'staging-5.9-rc8' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/staging · cc8ad8fa
      Linus Torvalds authored
      Pull IIO fixes from Greg KH:
       "Here are two small IIO driver fixes for 5.9-rc8 that resolve some
        reported issues:
         - driver name fixed in one driver
         - device name typo fixed
        Both have been in linux-next for a while with no reported problems"
      * tag 'staging-5.9-rc8' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/staging:
        iio: adc: qcom-spmi-adc5: fix driver name
        iio: adc: ad7124: Fix typo in device name
    • Linus Torvalds's avatar
      Merge tag 'gpio-v5.9-2' of git://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-gpio · 0bf0dfda
      Linus Torvalds authored
      Pull GPIO fixes from Linus Walleij:
       "Some late GPIO fixes for the v5.9 series:
         - Fix compiler warnings on the OMAP when PM is disabled
         - Clear the interrupt when setting edge sensitivity on the Spreadtrum
         - Fix up spurious interrupts on the TC35894.
         - Support threaded interrupts on the Siox controller.
         - Fix resource leaks on the mockup driver.
         - Fix line event handling in syscall compatible mode for the
           character device.
         - Fix an unitialized variable in the PCA953A driver.
         - Fix access to all GPIO IRQs on the Aspeed AST2600.
         - Fix line direction on the AMD FCH driver.
         - Use the bitmap API instead of compiler intrinsics for bit
           manipulation in the PCA953x driver"
      * tag 'gpio-v5.9-2' of git://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-gpio:
        gpio: pca953x: Correctly initialize registers 6 and 7 for PCA957x
        gpio: pca953x: Use bitmap API over implicit GCC extension
        gpio: amd-fch: correct logic of GPIO_LINE_DIRECTION
        gpio: aspeed: fix ast2600 bank properties
        gpio/aspeed-sgpio: don't enable all interrupts by default
        gpio/aspeed-sgpio: enable access to all 80 input & output sgpios
        gpio: pca953x: Fix uninitialized pending variable
        gpiolib: Fix line event handling in syscall compatible mode
        gpio: mockup: fix resource leak in error path
        gpio: siox: explicitly support only threaded irqs
        gpio: tc35894: fix up tc35894 interrupt configuration
        gpio: sprd: Clear interrupt when setting the type as edge
        gpio: omap: Fix warnings if PM is disabled
    • Linus Torvalds's avatar
      Merge tag 'mmc-v5.9-rc4-3' of git://git.kernel.org/pub/scm/linux/kernel/git/ulfh/mmc · 2270b890
      Linus Torvalds authored
      Pull MMC fixes from Ulf Hansson:
       - Fix deadlock when removing MEMSTICK host
       - Workaround broken CMDQ on Intel GLK based IRBIS models
      * tag 'mmc-v5.9-rc4-3' of git://git.kernel.org/pub/scm/linux/kernel/git/ulfh/mmc:
        mmc: sdhci: Workaround broken command queuing on Intel GLK based IRBIS models
        memstick: Skip allocating card when removing host
    • Thibaut Sautereau's avatar
      random32: Restore __latent_entropy attribute on net_rand_state · 09a6b0bc
      Thibaut Sautereau authored
      Commit f227e3ec ("random32: update the net random state on interrupt
      and activity") broke compilation and was temporarily fixed by Linus in
      83bdc727 ("random32: remove net_rand_state from the latent entropy
      gcc plugin") by entirely moving net_rand_state out of the things handled
      by the latent_entropy GCC plugin.
      From what I understand when reading the plugin code, using the
      __latent_entropy attribute on a declaration was the wrong part and
      simply keeping the __latent_entropy attribute on the variable definition
      was the correct fix.
      Fixes: 83bdc727
       ("random32: remove net_rand_state from the latent entropy gcc plugin")
      Acked-by: default avatarWilly Tarreau <w@1wt.eu>
      Cc: Emese Revfy <re.emese@gmail.com>
      Signed-off-by: default avatarThibaut Sautereau <thibaut.sautereau@ssi.gouv.fr>
      Signed-off-by: default avatarLinus Torvalds <torvalds@linux-foundation.org>
    • Rafael J. Wysocki's avatar
      Merge branch 'pm-cpufreq' · 7bbe8f2a
      Rafael J. Wysocki authored
      * pm-cpufreq:
        cpufreq: intel_pstate: Fix missing return statement
    • Roman Gushchin's avatar
      mm: memcg/slab: fix slab statistics in !SMP configuration · be458311
      Roman Gushchin authored
      Since commit ea426c2a
       ("mm: memcg: prepare for byte-sized vmstat
      items") the write side of slab counters accepts a value in bytes and
      converts it to pages.  It happens in __mod_node_page_state().
      However a non-SMP version of __mod_node_page_state() doesn't perform
      this conversion.  It leads to incorrect (unrealistically high) slab
      counters values.  Fix this by adding a similar conversion to the non-SMP
      version of __mod_node_page_state().
      Signed-off-by: default avatarRoman Gushchin <guro@fb.com>
      Reported-and-tested-by: default avatarBastian Bittorf <bb@npl.de>
      Fixes: ea426c2a
       ("mm: memcg: prepare for byte-sized vmstat items")
      Acked-by: default avatarVlastimil Babka <vbabka@suse.cz>
      Signed-off-by: default avatarLinus Torvalds <torvalds@linux-foundation.org>
    • Linus Torvalds's avatar
      pipe: remove pipe_wait() and fix wakeup race with splice · 472e5b05
      Linus Torvalds authored
      The pipe splice code still used the old model of waiting for pipe IO by
      using a non-specific "pipe_wait()" that waited for any pipe event to
      happen, which depended on all pipe IO being entirely serialized by the
      pipe lock.  So by checking the state you were waiting for, and then
      adding yourself to the wait queue before dropping the lock, you were
      guaranteed to see all the wakeups.
      Strictly speaking, the actual wakeups were not done under the lock, but
      the pipe_wait() model still worked, because since the waiter held the
      lock when checking whether it should sleep, it would always see the
      current state, and the wakeup was always done after updating the state.
      However, commit 0ddad21d ("pipe: use exclusive waits when reading or
      writing") split the single wait-queue into two, and in the process also
      made the "wait for event" code wait for _two_ wait queues, and that then
      showed a race with the wakers that were not serialized by the pipe lock.
      It's only splice that used that "pipe_wait()" model, so the problem
      wasn't obvious, but Josef Bacik reports:
       "I hit a hang with fstest btrfs/187, which does a btrfs send into
        /dev/null. This works by creating a pipe, the write side is given to
        the kernel to write into, and the read side is handed to a thread that
        splices into a file, in this case /dev/null.
        The box that was hung had the write side stuck here [pipe_write] and
        the read side stuck here [splice_from_pipe_next -> pipe_wait].
        [ more details about pipe_wait() scenario ]
        The problem is we're doing the prepare_to_wait, which sets our state
        each time, however we can be woken up either with reads or writes. In
        the case above we race with the WRITER waking us up, and re-set our
        state to INTERRUPTIBLE, and thus never break out of schedule"
      Josef had a patch that avoided the issue in pipe_wait() by just making
      it set the state only once, but the deeper problem is that pipe_wait()
      depends on a level of synchonization by the pipe mutex that it really
      shouldn't.  And the whole "wait for any pipe state change" model really
      isn't very good to begin with.
      So rather than trying to work around things in pipe_wait(), remove that
      legacy model of "wait for arbitrary pipe event" entirely, and actually
      create functions that wait for the pipe actually being readable or
      writable, and can do so without depending on the pipe lock serializing
      Fixes: 0ddad21d ("pipe: use exclusive waits when reading or writing")
      Link: https://lore.kernel.org/linux-fsdevel/bfa88b5ad6f069b2b679316b9e495a970130416c.1601567868.git.josef@toxicpanda.com/
      Reported-by: default avatarJosef Bacik <josef@toxicpanda.com>
      Reviewed-and-tested-by: default avatarJosef Bacik <josef@toxicpanda.com>
      Signed-off-by: default avatarLinus Torvalds <torvalds@linux-foundation.org>
  4. 01 Oct, 2020 13 commits