1. 28 Apr, 2022 1 commit
  2. 27 Apr, 2022 2 commits
  3. 17 Apr, 2022 2 commits
  4. 15 Apr, 2022 1 commit
  5. 13 Apr, 2022 3 commits
  6. 12 Apr, 2022 5 commits
  7. 11 Apr, 2022 5 commits
    • Jens Axboe's avatar
      io_uring: stop using io_wq_work as an fd placeholder · 82733d16
      Jens Axboe authored
      There are two reasons why this isn't the best idea:
      
      - It's an odd area to grab a bit of storage space, hence it's an odd area
        to grab storage from.
      - It puts the 3rd io_kiocb cacheline into the hot path, where normal hot
        path just needs the first two.
      
      Use 'cflags' for joint fd/cflags storage. We only need fd until we
      successfully issue, and we only need cflags once a request is done and is
      completed.
      
      Fixes: 6bf9c47a ("io_uring: defer file assignment")
      Signed-off-by: default avatarJens Axboe <axboe@kernel.dk>
      82733d16
    • Jens Axboe's avatar
      io_uring: move apoll->events cache · 2804ecd8
      Jens Axboe authored
      In preparation for fixing a regression with pulling in an extra cacheline
      for IO that doesn't usually touch the last cacheline of the io_kiocb,
      move the cached location of apoll->events to space shared with some other
      completion data. Like cflags, this isn't used until after the request
      has been completed, so we can piggy back on top of comp_list.
      
      Fixes: 81459350 ("io_uring: cache req->apoll->events in req->cflags")
      Signed-off-by: default avatarJens Axboe <axboe@kernel.dk>
      2804ecd8
    • Jens Axboe's avatar
      io_uring: io_kiocb_update_pos() should not touch file for non -1 offset · 6f83ab22
      Jens Axboe authored
      -1 tells use to use the current position, but we check if the file is
      a stream regardless of that. Fix up io_kiocb_update_pos() to only
      dip into file if we need to. This is both more efficient and also drops
      12 bytes of text on aarch64 and 64 bytes on x86-64.
      
      Fixes: b4aec400 ("io_uring: do not recalculate ppos unnecessarily")
      Signed-off-by: default avatarJens Axboe <axboe@kernel.dk>
      6f83ab22
    • Jens Axboe's avatar
      io_uring: flag the fact that linked file assignment is sane · c4212f3e
      Jens Axboe authored
      Give applications a way to tell if the kernel supports sane linked files,
      as in files being assigned at the right time to be able to reliably
      do <open file direct into slot X><read file from slot X> while using
      IOSQE_IO_LINK to order them.
      
      Not really a bug fix, but flag it as such so that it gets pulled in with
      backports of the deferred file assignment.
      
      Fixes: 6bf9c47a ("io_uring: defer file assignment")
      Signed-off-by: default avatarJens Axboe <axboe@kernel.dk>
      c4212f3e
    • Linus Torvalds's avatar
      Linux 5.18-rc2 · ce522ba9
      Linus Torvalds authored
      ce522ba9
  8. 10 Apr, 2022 13 commits
    • Linus Torvalds's avatar
      Merge tag 'tty-5.18-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/tty · 8b57b304
      Linus Torvalds authored
      Pull serial driver fix from Greg KH:
       "This is a single serial driver fix for a build issue that showed up
        due to changes that came in through the tty tree in 5.18-rc1 that were
        missed previously. It resolves a build error with the mpc52xx_uart
        driver.
      
        It has been in linux-next this week with no reported problems"
      
      * tag 'tty-5.18-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/tty:
        tty: serial: mpc52xx_uart: make rx/tx hooks return unsigned, part II.
      8b57b304
    • Linus Torvalds's avatar
      Merge tag 'staging-5.18-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/staging · 95aa17c3
      Linus Torvalds authored
      Pull staging driver fix from Greg KH:
       "Here is a single staging driver fix for 5.18-rc2 that resolves an
        endian issue for the r8188eu driver. It has been in linux-next all
        this week with no reported problems"
      
      * tag 'staging-5.18-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/staging:
        staging: r8188eu: Fix PPPoE tag insertion on little endian systems
      95aa17c3
    • Linus Torvalds's avatar
      Merge tag 'driver-core-5.18-rc2' of... · 33563138
      Linus Torvalds authored
      Merge tag 'driver-core-5.18-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-core
      
      Pull driver core updates from Greg KH:
       "Here are two small driver core changes for 5.18-rc2.
      
        They are the final bits in the removal of the default_attrs field in
        struct kobj_type. I had to wait until after 5.18-rc1 for all of the
        changes to do this came in through different development trees, and
        then one new user snuck in. So this series has two changes:
      
         - removal of the default_attrs field in the powerpc/pseries/vas code.
      
           The change has been acked by the PPC maintainers to come through
           this tree
      
         - removal of default_attrs from struct kobj_type now that all
           in-kernel users are removed.
      
           This cleans up the kobject code a little bit and removes some
           duplicated functionality that confused people (now there is only
           one way to do default groups)
      
        Both of these have been in linux-next for all of this week with no
        reported problems"
      
      * tag 'driver-core-5.18-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-core:
        kobject: kobj_type: remove default_attrs
        powerpc/pseries/vas: use default_groups in kobj_type
      33563138
    • Linus Torvalds's avatar
      Merge tag 'char-misc-5.18-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc · f58d3410
      Linus Torvalds authored
      Pull char/misc driver fix from Greg KH:
       "A single driver fix. It resolves the build warning issue on 32bit
        systems in the habannalabs driver that came in during the 5.18-rc1
        merge cycle.
      
        It has been in linux-next for all this week with no reported problems"
      
      * tag 'char-misc-5.18-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc:
        habanalabs: Fix test build failures
      f58d3410
    • Linus Torvalds's avatar
      Merge tag 'powerpc-5.18-2' of git://git.kernel.org/pub/scm/linux/kernel/git/powerpc/linux · 4ea3c642
      Linus Torvalds authored
      Pull powerpc fixes from Michael Ellerman:
      
       - Fix KVM "lost kick" race, where an attempt to pull a vcpu out of the
         guest could be lost (or delayed until the next guest exit).
      
       - Disable SCV (system call vectored) when PR KVM guests could be run.
      
       - Fix KVM PR guests using SCV, by disallowing AIL != 0 for KVM PR
         guests.
      
       - Add a new KVM CAP to indicate if AIL == 3 is supported.
      
       - Fix a regression when hotplugging a CPU to a memoryless/cpuless node.
      
       - Make virt_addr_valid() stricter for 64-bit Book3E & 32-bit, which
         fixes crashes seen due to hardened usercopy.
      
       - Revert a change to max_mapnr which broke HIGHMEM.
      
      Thanks to Christophe Leroy, Fabiano Rosas, Kefeng Wang, Nicholas Piggin,
      and Srikar Dronamraju.
      
      * tag 'powerpc-5.18-2' of git://git.kernel.org/pub/scm/linux/kernel/git/powerpc/linux:
        Revert "powerpc: Set max_mapnr correctly"
        powerpc: Fix virt_addr_valid() for 64-bit Book3E & 32-bit
        KVM: PPC: Move kvmhv_on_pseries() into kvm_ppc.h
        powerpc/numa: Handle partially initialized numa nodes
        powerpc/64: Fix build failure with allyesconfig in book3s_64_entry.S
        KVM: PPC: Use KVM_CAP_PPC_AIL_MODE_3
        KVM: PPC: Book3S PR: Disallow AIL != 0
        KVM: PPC: Book3S PR: Disable SCV when AIL could be disabled
        KVM: PPC: Book3S HV P9: Fix "lost kick" race
      4ea3c642
    • Linus Torvalds's avatar
      Merge tag 'irq-urgent-2022-04-10' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip · 1519610b
      Linus Torvalds authored
      Pull irq fixes from Thomas Gleixner:
       "A set of interrupt chip driver fixes:
      
         - A fix for a long standing bug in the ARM GICv3 redistributor
           polling which uses the wrong bit number to test.
      
         - Prevent translation of bogus ACPI table entries which map device
           interrupts into the IPI space on ARM GICs.
      
         - Don't write into the pending register of ARM GICV4 before the scan
           in hardware has completed.
      
         - A set of build and correctness fixes for the Qualcomm MPM driver"
      
      * tag 'irq-urgent-2022-04-10' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
        irqchip/gic, gic-v3: Prevent GSI to SGI translations
        irqchip/gic-v3: Fix GICR_CTLR.RWP polling
        irqchip/gic-v4: Wait for GICR_VPENDBASER.Dirty to clear before descheduling
        irqchip/irq-qcom-mpm: fix return value check in qcom_mpm_init()
        irq/qcom-mpm: Fix build error without MAILBOX
      1519610b
    • Linus Torvalds's avatar
      Merge tag 'x86_urgent_for_v5.18_rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip · 9c6913b7
      Linus Torvalds authored
      Pull x86 fixes from Borislav Petkov:
      
       - Fix the MSI message data struct definition
      
       - Use local labels in the exception table macros to avoid symbol
         conflicts with clang LTO builds
      
       - A couple of fixes to objtool checking of the relatively newly added
         SLS and IBT code
      
       - Rename a local var in the WARN* macro machinery to prevent shadowing
      
      * tag 'x86_urgent_for_v5.18_rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
        x86/msi: Fix msi message data shadow struct
        x86/extable: Prefer local labels in .set directives
        x86,bpf: Avoid IBT objtool warning
        objtool: Fix SLS validation for kcov tail-call replacement
        objtool: Fix IBT tail-call detection
        x86/bug: Prevent shadowing in __WARN_FLAGS
        x86/mm/tlb: Revert retpoline avoidance approach
      9c6913b7
    • Linus Torvalds's avatar
      Merge tag 'perf_urgent_for_v5.18_rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip · b51f86e9
      Linus Torvalds authored
      Pull perf fixes from Borislav Petkov:
      
       - A couple of fixes to cgroup-related handling of perf events
      
       - A couple of fixes to event encoding on Sapphire Rapids
      
       - Pass event caps of inherited events so that perf doesn't fail wrongly
         at fork()
      
       - Add support for a new Raptor Lake CPU
      
      * tag 'perf_urgent_for_v5.18_rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
        perf/core: Always set cpuctx cgrp when enable cgroup event
        perf/core: Fix perf_cgroup_switch()
        perf/core: Use perf_cgroup_info->active to check if cgroup is active
        perf/core: Don't pass task around when ctx sched in
        perf/x86/intel: Update the FRONTEND MSR mask on Sapphire Rapids
        perf/x86/intel: Don't extend the pseudo-encoding to GP counters
        perf/core: Inherit event_caps
        perf/x86/uncore: Add Raptor Lake uncore support
        perf/x86/msr: Add Raptor Lake CPU support
        perf/x86/cstate: Add Raptor Lake support
        perf/x86: Add Intel Raptor Lake support
      b51f86e9
    • Linus Torvalds's avatar
      Merge tag 'locking_urgent_for_v5.18_rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip · 50c94de6
      Linus Torvalds authored
      Pull locking fixes from Borislav Petkov:
      
       - Allow the compiler to optimize away unused percpu accesses and change
         the local_lock_* macros back to inline functions
      
       - A couple of fixes to static call insn patching
      
      * tag 'locking_urgent_for_v5.18_rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
        Revert "mm/page_alloc: mark pagesets as __maybe_unused"
        Revert "locking/local_lock: Make the empty local_lock_*() function a macro."
        x86/percpu: Remove volatile from arch_raw_cpu_ptr().
        static_call: Remove __DEFINE_STATIC_CALL macro
        static_call: Properly initialise DEFINE_STATIC_CALL_RET0()
        static_call: Don't make __static_call_return0 static
        x86,static_call: Fix __static_call_return0 for i386
      50c94de6
    • Linus Torvalds's avatar
      Merge tag 'sched_urgent_for_v5.18_rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip · 7136849e
      Linus Torvalds authored
      Pull scheduler fixes from Borislav Petkov:
      
       - Use the correct static key checking primitive on the IRQ exit path
      
       - Two fixes for the new forceidle balancer
      
      * tag 'sched_urgent_for_v5.18_rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
        entry: Fix compile error in dynamic_irqentry_exit_cond_resched()
        sched: Teach the forced-newidle balancer about CPU affinity limitation.
        sched/core: Fix forceidle balancing
      7136849e
    • Linus Torvalds's avatar
      Merge tag 'perf-tools-fixes-for-v5.18-2022-04-09' of... · 1862a69c
      Linus Torvalds authored
      Merge tag 'perf-tools-fixes-for-v5.18-2022-04-09' of git://git.kernel.org/pub/scm/linux/kernel/git/acme/linux
      
      Pull perf tools fixes from Arnaldo Carvalho de Melo:
      
       - Fix the clang command line option probing and remove some options to
         filter out, fixing the build with the latest clang versions
      
       - Fix 'perf bench' futex and epoll benchmarks to deal with machines
         with more than 1K CPUs
      
       - Fix 'perf test tsc' error message when not supported
      
       - Remap perf ring buffer if there is no space for event, fixing perf
         usage in 32-bit ChromeOS
      
       - Drop objdump stderr to avoid getting stuck waiting for stdout output
         in 'perf annotate'
      
       - Fix up garbled output by now showing unwind error messages when
         augmenting frame in best effort mode
      
       - Fix perf's libperf_print callback, use the va_args eprintf() variant
      
       - Sync vhost and arm64 cputype headers with the kernel sources
      
       - Fix 'perf report --mem-mode' with ARM SPE
      
       - Add missing external commands ('iiostat', etc) to 'perf --list-cmds'
      
      * tag 'perf-tools-fixes-for-v5.18-2022-04-09' of git://git.kernel.org/pub/scm/linux/kernel/git/acme/linux:
        perf annotate: Drop objdump stderr to avoid getting stuck waiting for stdout output
        perf tools: Add external commands to list-cmds
        perf docs: Add perf-iostat link to manpages
        perf session: Remap buf if there is no space for event
        perf bench: Fix epoll bench to correct usage of affinity for machines with #CPUs > 1K
        perf bench: Fix futex bench to correct usage of affinity for machines with #CPUs > 1K
        perf tools: Fix perf's libperf_print callback
        perf: arm-spe: Fix perf report --mem-mode
        perf unwind: Don't show unwind error messages when augmenting frame pointer stack
        tools headers arm64: Sync arm64's cputype.h with the kernel sources
        perf test tsc: Fix error message when not supported
        perf build: Don't use -ffat-lto-objects in the python feature test when building with clang-13
        perf python: Fix probing for some clang command line options
        tools build: Filter out options and warnings not supported by clang
        tools build: Use $(shell ) instead of `` to get embedded libperl's ccopts
        tools include UAPI: Sync linux/vhost.h with the kernel sources
      1862a69c
    • Linus Torvalds's avatar
      Merge tag 'cxl+nvdimm-for-5.18-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/nvdimm/nvdimm · 94a4c2bb
      Linus Torvalds authored
      Pull cxl and nvdimm fixes from Dan Williams:
      
       - Fix a compile error in the nvdimm unit tests
      
       - Fix a shadowed variable warning in the CXL PCI driver
      
      * tag 'cxl+nvdimm-for-5.18-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/nvdimm/nvdimm:
        cxl/pci: Drop shadowed variable
        tools/testing/nvdimm: Fix security_init() symbol collision
      94a4c2bb
    • Linus Torvalds's avatar
      Merge tag 'gpio-fixes-for-v5.18-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/brgl/linux · fa3b895d
      Linus Torvalds authored
      Pull gpio fix from Bartosz Golaszewski:
      
       - fix a race condition with consumers accessing the fields of GPIO IRQ
         chips before they're fully initialized
      
      * tag 'gpio-fixes-for-v5.18-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/brgl/linux:
        gpio: Restrict usage of GPIO chip irq members before initialization
      fa3b895d
  9. 09 Apr, 2022 8 commits