1. 21 Mar, 2021 24 commits
    • Linus Torvalds's avatar
      Linux 5.12-rc4 · 0d02ec6b
      Linus Torvalds authored
      0d02ec6b
    • Linus Torvalds's avatar
      Merge tag 'ext4_for_linus_stable' of git://git.kernel.org/pub/scm/linux/kernel/git/tytso/ext4 · d7f5f1bd
      Linus Torvalds authored
      Pull ext4 fixes from Ted Ts'o:
       "Miscellaneous ext4 bug fixes for v5.12"
      
      * tag 'ext4_for_linus_stable' of git://git.kernel.org/pub/scm/linux/kernel/git/tytso/ext4:
        ext4: initialize ret to suppress smatch warning
        ext4: stop inode update before return
        ext4: fix rename whiteout with fast commit
        ext4: fix timer use-after-free on failed mount
        ext4: fix potential error in ext4_do_update_inode
        ext4: do not try to set xattr into ea_inode if value is empty
        ext4: do not iput inode under running transaction in ext4_rename()
        ext4: find old entry again if failed to rename whiteout
        ext4: fix error handling in ext4_end_enable_verity()
        ext4: fix bh ref count on error paths
        fs/ext4: fix integer overflow in s_log_groups_per_flex
        ext4: add reclaim checks to xattr code
        ext4: shrink race window in ext4_should_retry_alloc()
      d7f5f1bd
    • Linus Torvalds's avatar
      Merge tag 'io_uring-5.12-2021-03-21' of git://git.kernel.dk/linux-block · 2c41fab1
      Linus Torvalds authored
      Pull io_uring followup fixes from Jens Axboe:
      
       - The SIGSTOP change from Eric, so we properly ignore that for
         PF_IO_WORKER threads.
      
       - Disallow sending signals to PF_IO_WORKER threads in general, we're
         not interested in having them funnel back to the io_uring owning
         task.
      
       - Stable fix from Stefan, ensuring we properly break links for short
         send/sendmsg recv/recvmsg if MSG_WAITALL is set.
      
       - Catch and loop when needing to run task_work before a PF_IO_WORKER
         threads goes to sleep.
      
      * tag 'io_uring-5.12-2021-03-21' of git://git.kernel.dk/linux-block:
        io_uring: call req_set_fail_links() on short send[msg]()/recv[msg]() with MSG_WAITALL
        io-wq: ensure task is running before processing task_work
        signal: don't allow STOP on PF_IO_WORKER threads
        signal: don't allow sending any signals to PF_IO_WORKER threads
      2c41fab1
    • Linus Torvalds's avatar
      Merge tag 'staging-5.12-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/staging · 1d4345eb
      Linus Torvalds authored
      Pull staging and IIO driver fixes from Greg KH:
       "Some small staging and IIO driver fixes:
      
         - MAINTAINERS changes for the move of the staging mailing list
      
         - comedi driver fixes to get request_irq() to work correctly
      
         - counter driver fixes for reported issues with iio devices
      
         - tiny iio driver fixes for reported issues.
      
        All of these have been in linux-next with no reported problems"
      
      * tag 'staging-5.12-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/staging:
        staging: vt665x: fix alignment constraints
        staging: comedi: cb_pcidas64: fix request_irq() warn
        staging: comedi: cb_pcidas: fix request_irq() warn
        MAINTAINERS: move the staging subsystem to lists.linux.dev
        MAINTAINERS: move some real subsystems off of the staging mailing list
        iio: gyro: mpu3050: Fix error handling in mpu3050_trigger_handler
        iio: hid-sensor-temperature: Fix issues of timestamp channel
        iio: hid-sensor-humidity: Fix alignment issue of timestamp channel
        counter: stm32-timer-cnt: fix ceiling miss-alignment with reload register
        counter: stm32-timer-cnt: fix ceiling write max value
        counter: stm32-timer-cnt: Report count function when SLAVE_MODE_DISABLED
        iio: adc: ab8500-gpadc: Fix off by 10 to 3
        iio:adc:stm32-adc: Add HAS_IOMEM dependency
        iio: adis16400: Fix an error code in adis16400_initial_setup()
        iio: adc: adi-axi-adc: add proper Kconfig dependencies
        iio: adc: ad7949: fix wrong ADC result due to incorrect bit mask
        iio: hid-sensor-prox: Fix scale not correct issue
        iio:adc:qcom-spmi-vadc: add default scale to LR_MUX2_BAT_ID channel
      1d4345eb
    • Linus Torvalds's avatar
      Merge tag 'usb-5.12-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb · 3001c355
      Linus Torvalds authored
      Pull USB and Thunderbolt driver fixes from Greg KH:
       "Here are some small Thunderbolt and USB driver fixes for some reported
        issues:
      
         - thunderbolt fixes for minor problems
      
         - typec fixes for power issues
      
         - usb-storage quirk addition
      
         - usbip bugfix
      
         - dwc3 bugfix when stopping transfers
      
         - cdnsp bugfix for isoc transfers
      
         - gadget use-after-free fix
      
        All have been in linux-next this week with no reported issues"
      
      * tag 'usb-5.12-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb:
        usb: typec: tcpm: Skip sink_cap query only when VDM sm is busy
        usb: dwc3: gadget: Prevent EP queuing while stopping transfers
        usb: typec: tcpm: Invoke power_supply_changed for tcpm-source-psy-
        usb: typec: Remove vdo[3] part of tps6598x_rx_identity_reg struct
        usb-storage: Add quirk to defeat Kindle's automatic unload
        usb: gadget: configfs: Fix KASAN use-after-free
        usbip: Fix incorrect double assignment to udc->ud.tcp_rx
        usb: cdnsp: Fixes incorrect value in ISOC TRB
        thunderbolt: Increase runtime PM reference count on DP tunnel discovery
        thunderbolt: Initialize HopID IDAs in tb_switch_alloc()
      3001c355
    • Linus Torvalds's avatar
      Merge tag 'irq-urgent-2021-03-21' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip · 5ee96fa9
      Linus Torvalds authored
      Pull irq fix from Ingo Molnar:
       "A change to robustify force-threaded IRQ handlers to always disable
        interrupts, plus a DocBook fix.
      
        The force-threaded IRQ handler change has been accelerated from the
        normal schedule of such a change to keep the bad pattern/workaround of
        spin_lock_irqsave() in handlers or IRQF_NOTHREAD as a kludge from
        spreading"
      
      * tag 'irq-urgent-2021-03-21' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
        genirq: Disable interrupts for force threaded handlers
        genirq/irq_sim: Fix typos in kernel doc (fnode -> fwnode)
      5ee96fa9
    • Linus Torvalds's avatar
      Merge tag 'perf-urgent-2021-03-21' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip · 1c74516c
      Linus Torvalds authored
      Pull perf fixes from Ingo Molnar:
       "Boundary condition fixes for bugs unearthed by the perf fuzzer"
      
      * tag 'perf-urgent-2021-03-21' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
        perf/x86/intel: Fix unchecked MSR access error caused by VLBR_EVENT
        perf/x86/intel: Fix a crash caused by zero PEBS status
      1c74516c
    • Linus Torvalds's avatar
      Merge tag 'locking-urgent-2021-03-21' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip · 5ba33b48
      Linus Torvalds authored
      Pull locking fixes from Ingo Molnar:
      
       - Get static calls & modules right. Hopefully.
      
       - WW mutex fixes
      
      * tag 'locking-urgent-2021-03-21' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
        static_call: Fix static_call_update() sanity check
        static_call: Align static_call_is_init() patching condition
        static_call: Fix static_call_set_init()
        locking/ww_mutex: Fix acquire/release imbalance in ww_acquire_init()/ww_acquire_fini()
        locking/ww_mutex: Simplify use_ww_ctx & ww_ctx handling
      5ba33b48
    • Linus Torvalds's avatar
      Merge tag 'efi-urgent-2021-03-21' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip · 92ed88cb
      Linus Torvalds authored
      Pull EFI fixes from Ingo Molnar:
      
       - another missing RT_PROP table related fix, to ensure that the
         efivarfs pseudo filesystem fails gracefully if variable services
         are unsupported
      
       - use the correct alignment for literal EFI GUIDs
      
       - fix a use after unmap issue in the memreserve code
      
      * tag 'efi-urgent-2021-03-21' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
        efi: use 32-bit alignment for efi_guid_t literals
        firmware/efi: Fix a use after bug in efi_mem_reserve_persistent
        efivars: respect EFI_UNSUPPORTED return from firmware
      92ed88cb
    • Linus Torvalds's avatar
      Merge tag 'x86_urgent_for_v5.12-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip · 5e3ddf96
      Linus Torvalds authored
      Pull x86 fixes from Borislav Petkov:
       "The freshest pile of shiny x86 fixes for 5.12:
      
         - Add the arch-specific mapping between physical and logical CPUs to
           fix devicetree-node lookups
      
         - Restore the IRQ2 ignore logic
      
         - Fix get_nr_restart_syscall() to return the correct restart syscall
           number. Split in a 4-patches set to avoid kABI breakage when
           backporting to dead kernels"
      
      * tag 'x86_urgent_for_v5.12-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
        x86/apic/of: Fix CPU devicetree-node lookups
        x86/ioapic: Ignore IRQ2 again
        x86: Introduce restart_block->arch_data to remove TS_COMPAT_RESTART
        x86: Introduce TS_COMPAT_RESTART to fix get_nr_restart_syscall()
        x86: Move TS_COMPAT back to asm/thread_info.h
        kernel, fs: Introduce and use set_restart_fn() and arch_set_restart_data()
      5e3ddf96
    • Linus Torvalds's avatar
      Merge tag 'powerpc-5.12-4' of git://git.kernel.org/pub/scm/linux/kernel/git/powerpc/linux · b35660a7
      Linus Torvalds authored
      Pull powerpc fixes from Michael Ellerman:
      
       - Fix a possible stack corruption and subsequent DLPAR failure in the
         rpadlpar_io PCI hotplug driver
      
       - Two build fixes for uncommon configurations
      
      Thanks to Christophe Leroy and Tyrel Datwyler.
      
      * tag 'powerpc-5.12-4' of git://git.kernel.org/pub/scm/linux/kernel/git/powerpc/linux:
        PCI: rpadlpar: Fix potential drc_name corruption in store functions
        powerpc: Force inlining of cpu_has_feature() to avoid build failure
        powerpc/vdso32: Add missing _restgpr_31_x to fix build failure
      b35660a7
    • Stefan Metzmacher's avatar
      io_uring: call req_set_fail_links() on short send[msg]()/recv[msg]() with MSG_WAITALL · 0031275d
      Stefan Metzmacher authored
      Without that it's not safe to use them in a linked combination with
      others.
      
      Now combinations like IORING_OP_SENDMSG followed by IORING_OP_SPLICE
      should be possible.
      
      We already handle short reads and writes for the following opcodes:
      
      - IORING_OP_READV
      - IORING_OP_READ_FIXED
      - IORING_OP_READ
      - IORING_OP_WRITEV
      - IORING_OP_WRITE_FIXED
      - IORING_OP_WRITE
      - IORING_OP_SPLICE
      - IORING_OP_TEE
      
      Now we have it for these as well:
      
      - IORING_OP_SENDMSG
      - IORING_OP_SEND
      - IORING_OP_RECVMSG
      - IORING_OP_RECV
      
      For IORING_OP_RECVMSG we also check for the MSG_TRUNC and MSG_CTRUNC
      flags in order to call req_set_fail_links().
      
      There might be applications arround depending on the behavior
      that even short send[msg]()/recv[msg]() retuns continue an
      IOSQE_IO_LINK chain.
      
      It's very unlikely that such applications pass in MSG_WAITALL,
      which is only defined in 'man 2 recvmsg', but not in 'man 2 sendmsg'.
      
      It's expected that the low level sock_sendmsg() call just ignores
      MSG_WAITALL, as MSG_ZEROCOPY is also ignored without explicitly set
      SO_ZEROCOPY.
      
      We also expect the caller to know about the implicit truncation to
      MAX_RW_COUNT, which we don't detect.
      
      cc: netdev@vger.kernel.org
      Link: https://lore.kernel.org/r/c4e1a4cc0d905314f4d5dc567e65a7b09621aab3.1615908477.git.metze@samba.org
      
      Signed-off-by: default avatarStefan Metzmacher <metze@samba.org>
      Signed-off-by: default avatarJens Axboe <axboe@kernel.dk>
      0031275d
    • Jens Axboe's avatar
      io-wq: ensure task is running before processing task_work · 00ddff43
      Jens Axboe authored
      Mark the current task as running if we need to run task_work from the
      io-wq threads as part of work handling. If that is the case, then return
      as such so that the caller can appropriately loop back and reset if it
      was part of a going-to-sleep flush.
      
      Fixes: 3bfe6106
      
       ("io-wq: fork worker threads from original task")
      Signed-off-by: default avatarJens Axboe <axboe@kernel.dk>
      00ddff43
    • Eric W. Biederman's avatar
      signal: don't allow STOP on PF_IO_WORKER threads · 4db4b1a0
      Eric W. Biederman authored
      
      
      Just like we don't allow normal signals to IO threads, don't deliver a
      STOP to a task that has PF_IO_WORKER set. The IO threads don't take
      signals in general, and have no means of flushing out a stop either.
      
      Longer term, we may want to look into allowing stop of these threads,
      as it relates to eg process freezing. For now, this prevents a spin
      issue if a SIGSTOP is delivered to the parent task.
      Reported-by: default avatarStefan Metzmacher <metze@samba.org>
      Signed-off-by: default avatarJens Axboe <axboe@kernel.dk>
      Signed-off-by: default avatar"Eric W. Biederman" <ebiederm@xmission.com>
      4db4b1a0
    • Jens Axboe's avatar
      signal: don't allow sending any signals to PF_IO_WORKER threads · 5be28c8f
      Jens Axboe authored
      
      
      They don't take signals individually, and even if they share signals with
      the parent task, don't allow them to be delivered through the worker
      thread. Linux does allow this kind of behavior for regular threads, but
      it's really a compatability thing that we need not care about for the IO
      threads.
      Reported-by: default avatarStefan Metzmacher <metze@samba.org>
      Signed-off-by: default avatarJens Axboe <axboe@kernel.dk>
      5be28c8f
    • Theodore Ts'o's avatar
      64395d95
    • Pan Bian's avatar
      ext4: stop inode update before return · 512c15ef
      Pan Bian authored
      
      
      The inode update should be stopped before returing the error code.
      Signed-off-by: default avatarPan Bian <bianpan2016@163.com>
      Link: https://lore.kernel.org/r/20210117085732.93788-1-bianpan2016@163.com
      Fixes: 8016e29f
      
       ("ext4: fast commit recovery path")
      Cc: stable@kernel.org
      Reviewed-by: default avatarHarshad Shirwadkar <harshadshirwadkar@gmail.com>
      Signed-off-by: default avatarTheodore Ts'o <tytso@mit.edu>
      512c15ef
    • Harshad Shirwadkar's avatar
      ext4: fix rename whiteout with fast commit · 8210bb29
      Harshad Shirwadkar authored
      This patch adds rename whiteout support in fast commits. Note that the
      whiteout object that gets created is actually char device. Which
      imples, the function ext4_inode_journal_mode(struct inode *inode)
      would return "JOURNAL_DATA" for this inode. This has a consequence in
      fast commit code that it will make creation of the whiteout object a
      fast-commit ineligible behavior and thus will fall back to full
      commits. With this patch, this can be observed by running fast commits
      with rename whiteout and seeing the stats generated by ext4_fc_stats
      tracepoint as follows:
      
      ext4_fc_stats: dev 254:32 fc ineligible reasons:
      XATTR:0, CROSS_RENAME:0, JOURNAL_FLAG_CHANGE:0, NO_MEM:0, SWAP_BOOT:0,
      RESIZE:0, RENAME_DIR:0, FALLOC_RANGE:0, INODE_JOURNAL_DATA:16;
      num_commits:6, ineligible: 6, numblks: 3
      
      So in short, this patch guarantees that in case of rename whiteout, we
      fall back to full commits.
      
      Amir mentioned that instead of creating a new whiteout object for
      every rename, we can create a static whiteout object with irrelevant
      nlink. That will make fast commits to not fall back to full
      commit. But until this happens, this patch will ensure correctness by
      falling back to full commits.
      
      Fixes: 8016e29f
      
       ("ext4: fast commit recovery path")
      Cc: stable@kernel.org
      Signed-off-by: default avatarHarshad Shirwadkar <harshadshirwadkar@gmail.com>
      Link: https://lore.kernel.org/r/20210316221921.1124955-1-harshadshirwadkar@gmail.com
      
      Signed-off-by: default avatarTheodore Ts'o <tytso@mit.edu>
      8210bb29
    • Jan Kara's avatar
      ext4: fix timer use-after-free on failed mount · 2a4ae3bc
      Jan Kara authored
      When filesystem mount fails because of corrupted filesystem we first
      cancel the s_err_report timer reminding fs errors every day and only
      then we flush s_error_work. However s_error_work may report another fs
      error and re-arm timer thus resulting in timer use-after-free. Fix the
      problem by first flushing the work and only after that canceling the
      s_err_report timer.
      
      Reported-by: syzbot+628472a2aac693ab0fcd@syzkaller.appspotmail.com
      Fixes: 2d01ddc8
      
       ("ext4: save error info to sb through journal if available")
      CC: stable@vger.kernel.org
      Signed-off-by: default avatarJan Kara <jack@suse.cz>
      Link: https://lore.kernel.org/r/20210315165906.2175-1-jack@suse.cz
      
      Signed-off-by: default avatarTheodore Ts'o <tytso@mit.edu>
      2a4ae3bc
    • Shijie Luo's avatar
      ext4: fix potential error in ext4_do_update_inode · 7d8bd3c7
      Shijie Luo authored
      
      
      If set_large_file = 1 and errors occur in ext4_handle_dirty_metadata(),
      the error code will be overridden, go to out_brelse to avoid this
      situation.
      Signed-off-by: default avatarShijie Luo <luoshijie1@huawei.com>
      Link: https://lore.kernel.org/r/20210312065051.36314-1-luoshijie1@huawei.com
      
      
      Cc: stable@kernel.org
      Reviewed-by: default avatarJan Kara <jack@suse.cz>
      Signed-off-by: default avatarTheodore Ts'o <tytso@mit.edu>
      7d8bd3c7
    • zhangyi (F)'s avatar
      ext4: do not try to set xattr into ea_inode if value is empty · 6b224899
      zhangyi (F) authored
      Syzbot report a warning that ext4 may create an empty ea_inode if set
      an empty extent attribute to a file on the file system which is no free
      blocks left.
      
        WARNING: CPU: 6 PID: 10667 at fs/ext4/xattr.c:1640 ext4_xattr_set_entry+0x10f8/0x1114 fs/ext4/xattr.c:1640
        ...
        Call trace:
         ext4_xattr_set_entry+0x10f8/0x1114 fs/ext4/xattr.c:1640
         ext4_xattr_block_set+0x1d0/0x1b1c fs/ext4/xattr.c:1942
         ext4_xattr_set_handle+0x8a0/0xf1c fs/ext4/xattr.c:2390
         ext4_xattr_set+0x120/0x1f0 fs/ext4/xattr.c:2491
         ext4_xattr_trusted_set+0x48/0x5c fs/ext4/xattr_trusted.c:37
         __vfs_setxattr+0x208/0x23c fs/xattr.c:177
        ...
      
      Now, ext4 try to store extent attribute into an external inode if
      ext4_xattr_block_set() return -ENOSPC, but for the case of store an
      empty extent attribute, store the extent entry into the extent
      attribute block is enough. A simple reproduce below.
      
        fallocate test.img -l 1M
        mkfs.ext4 -F -b 2048 -O ea_inode test.img
        mount test.img /mnt
        dd if=/dev/zero of=/mnt/foo bs=2048 count=500
        setfattr -n "user.test" /mnt/foo
      
      Reported-by: syzbot+98b881fdd8ebf45ab4ae@syzkaller.appspotmail.com
      Fixes: 9c6e7853
      
       ("ext4: reserve space for xattr entries/names")
      Cc: stable@kernel.org
      Signed-off-by: default avatarzhangyi (F) <yi.zhang@huawei.com>
      Link: https://lore.kernel.org/r/20210305120508.298465-1-yi.zhang@huawei.com
      
      Signed-off-by: default avatarTheodore Ts'o <tytso@mit.edu>
      6b224899
    • zhangyi (F)'s avatar
      ext4: do not iput inode under running transaction in ext4_rename() · 5dccdc5a
      zhangyi (F) authored
      In ext4_rename(), when RENAME_WHITEOUT failed to add new entry into
      directory, it ends up dropping new created whiteout inode under the
      running transaction. After commit <9b88f9fb
      
      > ("ext4: Do not iput inode
      under running transaction"), we follow the assumptions that evict() does
      not get called from a transaction context but in ext4_rename() it breaks
      this suggestion. Although it's not a real problem, better to obey it, so
      this patch add inode to orphan list and stop transaction before final
      iput().
      Signed-off-by: default avatarzhangyi (F) <yi.zhang@huawei.com>
      Link: https://lore.kernel.org/r/20210303131703.330415-2-yi.zhang@huawei.com
      
      Signed-off-by: default avatarTheodore Ts'o <tytso@mit.edu>
      5dccdc5a
    • zhangyi (F)'s avatar
      ext4: find old entry again if failed to rename whiteout · b7ff91fd
      zhangyi (F) authored
      If we failed to add new entry on rename whiteout, we cannot reset the
      old->de entry directly, because the old->de could have moved from under
      us during make indexed dir. So find the old entry again before reset is
      needed, otherwise it may corrupt the filesystem as below.
      
        /dev/sda: Entry '00000001' in ??? (12) has deleted/unused inode 15. CLEARED.
        /dev/sda: Unattached inode 75
        /dev/sda: UNEXPECTED INCONSISTENCY; RUN fsck MANUALLY.
      
      Fixes: 6b4b8e6b
      
       ("ext4: fix bug for rename with RENAME_WHITEOUT")
      Cc: stable@vger.kernel.org
      Signed-off-by: default avatarzhangyi (F) <yi.zhang@huawei.com>
      Link: https://lore.kernel.org/r/20210303131703.330415-1-yi.zhang@huawei.com
      
      Signed-off-by: default avatarTheodore Ts'o <tytso@mit.edu>
      b7ff91fd
    • Thomas Gleixner's avatar
      genirq: Disable interrupts for force threaded handlers · 81e2073c
      Thomas Gleixner authored
      With interrupt force threading all device interrupt handlers are invoked
      from kernel threads. Contrary to hard interrupt context the invocation only
      disables bottom halfs, but not interrupts. This was an oversight back then
      because any code like this will have an issue:
      
      thread(irq_A)
        irq_handler(A)
          spin_lock(&foo->lock);
      
      interrupt(irq_B)
        irq_handler(B)
          spin_lock(&foo->lock);
      
      This has been triggered with networking (NAPI vs. hrtimers) and console
      drivers where printk() happens from an interrupt which interrupted the
      force threaded handler.
      
      Now people noticed and started to change the spin_lock() in the handler to
      spin_lock_irqsave() which affects performance or add IRQF_NOTHREAD to the
      interrupt request which in turn breaks RT.
      
      Fix the root cause and not the symptom and disable interrupts before
      invoking the force threaded handler which preserves the regular semantics
      and the usefulness of the interrupt force threading as a general debugging
      tool.
      
      For not RT this is not changing much, except that during the execution of
      the threaded handler interrupts are delayed until the handler
      returns. Vs. scheduling and softirq processing there is no difference.
      
      For RT kernels there is no issue.
      
      Fixes: 8d32a307
      
       ("genirq: Provide forced interrupt threading")
      Reported-by: default avatarJohan Hovold <johan@kernel.org>
      Signed-off-by: default avatarThomas Gleixner <tglx@linutronix.de>
      Reviewed-by: default avatarJohan Hovold <johan@kernel.org>
      Acked-by: default avatarSebastian Andrzej Siewior <bigeasy@linutronix.de>
      Link: https://lore.kernel.org/r/20210317143859.513307808@linutronix.de
      81e2073c
  2. 20 Mar, 2021 6 commits
    • Linus Torvalds's avatar
      Merge tag 'riscv-for-linus-5.12-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/riscv/linux · 812da4d3
      Linus Torvalds authored
      Pull RISC-V fixes from Palmer Dabbelt:
       "A handful of fixes for 5.12:
      
         - fix the SBI remote fence numbers for hypervisor fences, which had
           been transcribed in the wrong order in Linux. These fences are only
           used with the KVM patches applied.
      
         - fix a whole host of build warnings, these should have no functional
           change.
      
         - fix init_resources() to prevent an off-by-one error from causing an
           out-of-bounds array reference. This was manifesting during boot on
           vexriscv.
      
         - ensure the KASAN mappings are visible before proceeding to use
           them"
      
      * tag 'riscv-for-linus-5.12-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/riscv/linux:
        riscv: Correct SPARSEMEM configuration
        RISC-V: kasan: Declare kasan_shallow_populate() static
        riscv: Ensure page table writes are flushed when initializing KASAN vmalloc
        RISC-V: Fix out-of-bounds accesses in init_resources()
        riscv: Fix compilation error with Canaan SoC
        ftrace: Fix spelling mistake "disabed" -> "disabled"
        riscv: fix bugon.cocci warnings
        riscv: process: Fix no prototype for arch_dup_task_struct
        riscv: ftrace: Use ftrace_get_regs helper
        riscv: process: Fix no prototype for show_regs
        riscv: syscall_table: Reduce W=1 compilation warnings noise
        riscv: time: Fix no prototype for time_init
        riscv: ptrace: Fix no prototype warnings
        riscv: sbi: Fix comment of __sbi_set_timer_v01
        riscv: irq: Fix no prototype warning
        riscv: traps: Fix no prototype warnings
        RISC-V: correct enum sbi_ext_rfence_fid
      812da4d3
    • Linus Torvalds's avatar
      Merge tag '5.12-rc3-smb3' of git://git.samba.org/sfrench/cifs-2.6 · bfdc4aa9
      Linus Torvalds authored
      Pull cifs fixes from Steve French:
       "Five cifs/smb3 fixes - three for stable, including an important ACL
        fix and security signature fix"
      
      * tag '5.12-rc3-smb3' of git://git.samba.org/sfrench/cifs-2.6:
        cifs: fix allocation size on newly created files
        cifs: warn and fail if trying to use rootfs without the config option
        fs/cifs/: fix misspellings using codespell tool
        cifs: Fix preauth hash corruption
        cifs: update new ACE pointer after populate_new_aces.
      bfdc4aa9
    • Linus Torvalds's avatar
      Merge tag 'scsi-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi · af97713d
      Linus Torvalds authored
      Pull SCSI fixes from James Bottomley:
       "Eight fixes, all in drivers, all fairly minor either being fixes in
        error legs, memory leaks on teardown, context errors or semantic
        problems"
      
      * tag 'scsi-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi:
        scsi: mpt3sas: Do not use GFP_KERNEL in atomic context
        scsi: ufs: ufs-mediatek: Correct operator & -> &&
        scsi: sd_zbc: Update write pointer offset cache
        scsi: lpfc: Fix some error codes in debugfs
        scsi: qla2xxx: Fix broken #endif placement
        scsi: st: Fix a use after free in st_open()
        scsi: myrs: Fix a double free in myrs_cleanup()
        scsi: ibmvfc: Free channel_setup_buf during device tear down
      af97713d
    • Linus Torvalds's avatar
      Merge tag 'zonefs-5.12-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/dlemoal/zonefs · 1c273e10
      Linus Torvalds authored
      Pull zonefs fixes from Damien Le Moal:
      
       - fix inode write open reference count (Chao)
      
       - Fix wrong write offset for asynchronous O_APPEND writes (me)
      
       - Prevent use of sequential zone file as swap files (me)
      
      * tag 'zonefs-5.12-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/dlemoal/zonefs:
        zonefs: fix to update .i_wr_refcnt correctly in zonefs_open_zone()
        zonefs: Fix O_APPEND async write handling
        zonefs: prevent use of seq files as swap file
      1c273e10
    • Linus Torvalds's avatar
      Merge tag 'block-5.12-2021-03-19' of git://git.kernel.dk/linux-block · d626c692
      Linus Torvalds authored
      Pull block fixes from Jens Axboe:
       "Just an NVMe pull request this week:
      
         - fix tag allocation for keep alive
      
         - fix a unit mismatch for the Write Zeroes limits
      
         - various TCP transport fixes (Sagi Grimberg, Elad Grupi)
      
         - fix iosqes and iocqes validation for discovery controllers (Sagi Grimberg)"
      
      * tag 'block-5.12-2021-03-19' of git://git.kernel.dk/linux-block:
        nvmet-tcp: fix kmap leak when data digest in use
        nvmet: don't check iosqes,iocqes for discovery controllers
        nvme-rdma: fix possible hang when failing to set io queues
        nvme-tcp: fix possible hang when failing to set io queues
        nvme-tcp: fix misuse of __smp_processor_id with preemption enabled
        nvme-tcp: fix a NULL deref when receiving a 0-length r2t PDU
        nvme: fix Write Zeroes limitations
        nvme: allocate the keep alive request using BLK_MQ_REQ_NOWAIT
        nvme: merge nvme_keep_alive into nvme_keep_alive_work
        nvme-fabrics: only reserve a single tag
      d626c692
    • Linus Torvalds's avatar
      Merge tag 'io_uring-5.12-2021-03-19' of git://git.kernel.dk/linux-block · 0ada2dad
      Linus Torvalds authored
      Pull io_uring fixes from Jens Axboe:
       "Quieter week this time, which was both expected and desired. About
        half of the below is fixes for this release, the other half are just
        fixes in general. In detail:
      
         - Fix the freezing of IO threads, by making the freezer not send them
           fake signals. Make them freezable by default.
      
         - Like we did for personalities, move the buffer IDR to xarray. Kills
           some code and avoids a use-after-free on teardown.
      
         - SQPOLL cleanups and fixes (Pavel)
      
         - Fix linked timeout race (Pavel)
      
         - Fix potential completion post use-after-free (Pavel)
      
         - Cleanup and move internal structures outside of general kernel view
           (Stefan)
      
         - Use MSG_SIGNAL for send/recv from io_uring (Stefan)"
      
      * tag 'io_uring-5.12-2021-03-19' of git://git.kernel.dk/linux-block:
        io_uring: don't leak creds on SQO attach error
        io_uring: use typesafe pointers in io_uring_task
        io_uring: remove structures from include/linux/io_uring.h
        io_uring: imply MSG_NOSIGNAL for send[msg]()/recv[msg]() calls
        io_uring: fix sqpoll cancellation via task_work
        io_uring: add generic callback_head helpers
        io_uring: fix concurrent parking
        io_uring: halt SQO submission on ctx exit
        io_uring: replace sqd rw_semaphore with mutex
        io_uring: fix complete_post use ctx after free
        io_uring: fix ->flags races by linked timeouts
        io_uring: convert io_buffer_idr to XArray
        io_uring: allow IO worker threads to be frozen
        kernel: freezer should treat PF_IO_WORKER like PF_KTHREAD for freezing
      0ada2dad
  3. 19 Mar, 2021 10 commits
    • Johan Hovold's avatar
      x86/apic/of: Fix CPU devicetree-node lookups · dd926880
      Johan Hovold authored
      Architectures that describe the CPU topology in devicetree and do not have
      an identity mapping between physical and logical CPU ids must override the
      default implementation of arch_match_cpu_phys_id().
      
      Failing to do so breaks CPU devicetree-node lookups using of_get_cpu_node()
      and of_cpu_device_node_get() which several drivers rely on. It also causes
      the CPU struct devices exported through sysfs to point to the wrong
      devicetree nodes.
      
      On x86, CPUs are described in devicetree using their APIC ids and those
      do not generally coincide with the logical ids, even if CPU0 typically
      uses APIC id 0.
      
      Add the missing implementation of arch_match_cpu_phys_id() so that CPU-node
      lookups work also with SMP.
      
      Apart from fixing the broken sysfs devicetree-node links this likely does
      not affect current users of mainline kernels on x86.
      
      Fixes: 4e07db9c
      
       ("x86/devicetree: Use CPU description from Device Tree")
      Signed-off-by: default avatarJohan Hovold <johan@kernel.org>
      Signed-off-by: default avatarThomas Gleixner <tglx@linutronix.de>
      Link: https://lore.kernel.org/r/20210312092033.26317-1-johan@kernel.org
      dd926880
    • Linus Torvalds's avatar
      Merge tag 'for-linus' of git://git.kernel.org/pub/scm/virt/kvm/kvm · ecd8ee7f
      Linus Torvalds authored
      Pull kvm fixes from Paolo Bonzini:
       "Fixes for kvm on x86:
      
         - new selftests
      
         - fixes for migration with HyperV re-enlightenment enabled
      
         - fix RCU/SRCU usage
      
         - fixes for local_irq_restore misuse false positive"
      
      * tag 'for-linus' of git://git.kernel.org/pub/scm/virt/kvm/kvm:
        documentation/kvm: additional explanations on KVM_SET_BOOT_CPU_ID
        x86/kvm: Fix broken irq restoration in kvm_wait
        KVM: X86: Fix missing local pCPU when executing wbinvd on all dirty pCPUs
        KVM: x86: Protect userspace MSR filter with SRCU, and set atomically-ish
        selftests: kvm: add set_boot_cpu_id test
        selftests: kvm: add _vm_ioctl
        selftests: kvm: add get_msr_index_features
        selftests: kvm: Add basic Hyper-V clocksources tests
        KVM: x86: hyper-v: Don't touch TSC page values when guest opted for re-enlightenment
        KVM: x86: hyper-v: Track Hyper-V TSC page status
        KVM: x86: hyper-v: Prevent using not-yet-updated TSC page by secondary CPUs
        KVM: x86: hyper-v: Limit guest to writing zero to HV_X64_MSR_TSC_EMULATION_STATUS
        KVM: x86/mmu: Store the address space ID in the TDP iterator
        KVM: x86/mmu: Factor out tdp_iter_return_to_root
        KVM: x86/mmu: Fix RCU usage when atomically zapping SPTEs
        KVM: x86/mmu: Fix RCU usage in handle_removed_tdp_mmu_page
      ecd8ee7f
    • Linus Torvalds's avatar
      Merge tag 'gpio-fixes-for-v5.12-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/brgl/linux · 3149860d
      Linus Torvalds authored
      Pull gpio fixes from Bartosz Golaszewski:
       "Two fixes for the GPIO subsystem. Both address issues in the core GPIO
        code:
      
         - fix the return value in error path in gpiolib_dev_init()
      
         - fix the 'gpio-line-names' property handling correctly this time"
      
      * tag 'gpio-fixes-for-v5.12-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/brgl/linux:
        gpiolib: Assign fwnode to parent's if no primary one provided
        gpiolib: Fix error return code in gpiolib_dev_init()
      3149860d
    • Linus Torvalds's avatar
      Merge tag 's390-5.12-4' of git://git.kernel.org/pub/scm/linux/kernel/git/s390/linux · 6bfea141
      Linus Torvalds authored
      Pull s390 updates from Heiko Carstens:
      
       - disable preemption when accessing local per-cpu variables in the new
         counter set driver
      
       - fix by a factor of four increased steal time due to missing
         cputime_to_nsecs() conversion
      
       - fix PCI device structure leak
      
      * tag 's390-5.12-4' of git://git.kernel.org/pub/scm/linux/kernel/git/s390/linux:
        s390/pci: fix leak of PCI device structure
        s390/vtime: fix increased steal time accounting
        s390/cpumf: disable preemption when accessing per-cpu variable
      6bfea141
    • Linus Torvalds's avatar
      Merge tag 'trace-v5.12-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/rostedt/linux-trace · 278924cb
      Linus Torvalds authored
      Pull workqueue tracing fix from Steven Rostedt:
       "Fix workqueue trace event unsafe string reference
      
        After adding a verifier to test all strings printed in trace events to
        make sure they either point to a string on the ring buffer, or to read
        only core kernel memory, it triggered on a workqueue trace event. The
        trace event workqueue_queue_work references the allocated name of the
        workqueue in the output. If the workqueue is freed before the trace is
        read, then the trace will dereference freed memory.
      
        Update the trace event to use the __string(), __assign_str(), and
        __get_str() helpers to handle such cases"
      
      * tag 'trace-v5.12-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/rostedt/linux-trace:
        workqueue/tracing: Copy workqueue name to buffer in trace event
      278924cb
    • Linus Torvalds's avatar
      Merge tag 'pm-5.12-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm · ec857209
      Linus Torvalds authored
      Pull power management fixes from Rafael Wysocki:
       "Revert two problematic commits.
      
        Specifics:
      
         - Revert ACPI PM commit that attempted to improve reboot handling on
           some systems, but it caused other systems to panic() during reboot
           (Josef Bacik)
      
         - Revert PM-runtime commit that attempted to improve the handling of
           suppliers during PM-runtime suspend of a consumer device, but it
           introduced a race condition potentially leading to unexpected
           behavior (Rafael Wysocki)"
      
      * tag 'pm-5.12-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm:
        Revert "PM: runtime: Update device status before letting suppliers suspend"
        Revert "PM: ACPI: reboot: Use S5 for reboot"
      ec857209
    • Linus Torvalds's avatar
      Merge tag 'iommu-fixes-v5.12-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/joro/iommu · 65a10374
      Linus Torvalds authored
      Pull iommu fixes from Joerg Roedel:
      
       - Three AMD IOMMU patches to fix a boot crash on AMD Stoney systems and
         every other AMD IOMMU system booted with 'amd_iommu=off'.
      
         This is a v5.11 regression.
      
       - A Fix for the Tegra IOMMU driver to make sure it detects all IOMMUs
      
      * tag 'iommu-fixes-v5.12-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/joro/iommu:
        iommu/tegra-smmu: Make tegra_smmu_probe_device() to handle all IOMMU phandles
        iommu/amd: Keep track of amd_iommu_irq_remap state
        iommu/amd: Don't call early_amd_iommu_init() when AMD IOMMU is disabled
        iommu/amd: Move Stoney Ridge check to detect_ivrs()
      65a10374
    • Linus Torvalds's avatar
      Merge tag 'sound-5.12-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound · 769e155c
      Linus Torvalds authored
      Pull sound fixes from Takashi Iwai:
       "The majority of changes are various ASoC device/platform-specific
        small fixes (including a removal of stale file) while the only common
        change is a clk management fix in ASoC simple-card driver.
      
        The rest are the usual HD-audio quirks"
      
      * tag 'sound-5.12-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound: (44 commits)
        ALSA: usb-audio: Fix unintentional sign extension issue
        ALSA: hda/realtek: fix mute/micmute LEDs for HP 850 G8
        ASoC: dt-bindings: fsl_spdif: Add compatible string for new platforms
        ASoC: rt711: add snd_soc_component remove callback
        ASoC: rt5659: Update MCLK rate in set_sysclk()
        ASoC: simple-card-utils: Do not handle device clock
        ALSA: hda/realtek: fix mute/micmute LEDs for HP 440 G8
        ALSA: hda/realtek: fix mute/micmute LEDs for HP 840 G8
        ALSA: hda/realtek: apply pin quirk for XiaomiNotebook Pro
        ALSA: hda/realtek: Apply headset-mic quirks for Xiaomi Redmibook Air
        ASoC: mediatek: mt8192: fix tdm out data is valid on rising edge
        ALSA: dice: fix null pointer dereference when node is disconnected
        ALSA: hda: generic: Fix the micmute led init state
        ASoC: qcom: lpass-cpu: Fix lpass dai ids parse
        spi: cadence: set cqspi to the driver_data field of struct device
        ASoC: SOF: intel: fix wrong poll bits in dsp power down
        ASoC: codecs: wcd934x: add a sanity check in set channel map
        ASoC: qcom: sdm845: Fix array out of range on rx slim channels
        ASoC: qcom: sdm845: Fix array out of bounds access
        ASoC: remove remnants of sirf prima/atlas audio codec
        ...
      769e155c
    • Steve French's avatar
      cifs: fix allocation size on newly created files · 65af8f01
      Steve French authored
      
      
      Applications that create and extend and write to a file do not
      expect to see 0 allocation size.  When file is extended,
      set its allocation size to a plausible value until we have a
      chance to query the server for it.  When the file is cached
      this will prevent showing an impossible number of allocated
      blocks (like 0).  This fixes e.g. xfstests 614 which does
      
          1) create a file and set its size to 64K
          2) mmap write 64K to the file
          3) stat -c %b for the file (to query the number of allocated blocks)
      
      It was failing because we returned 0 blocks.  Even though we would
      return the correct cached file size, we returned an impossible
      allocation size.
      Signed-off-by: default avatarSteve French <stfrench@microsoft.com>
      CC: <stable@vger.kernel.org>
      Reviewed-by: default avatarAurelien Aptel <aaptel@suse.com>
      65af8f01
    • Rafael J. Wysocki's avatar
      Merge branch 'pm-core' · 49cb71a7
      Rafael J. Wysocki authored
      * pm-core:
        Revert "PM: runtime: Update device status before letting suppliers suspend"
      49cb71a7