Commit dd384658c738 for kernel

commit dd384658c738d15783a786d3af2851e02490f171
Merge: 60aba79a5012 4626d370ae89
Author: Linus Torvalds <torvalds@linux-foundation.org>
Date:   Fri Oct 30 21:54:38 2026 -0700

    Merge tag 'perf-tools-for-v7.4-1-2026-10-30' of git://git.kernel.org/pub/scm/linux/kernel/git/perf/perf-tools-next

    Pull perf tool updates from Arnaldo Carvalho de Melo:

     - Support instruction tracking on arm64 for data type profiling,
       resolving stack, global, per-CPU and 'current' variable accesses, so
       that 'perf annotate --data-type' resolves types on arm64 the way it
       does on x86.

     - Port the Python scripts to the perf module and standalone execution,
       and improve the module: lazy sample callchains and event copies, GIL
       handling, better session/thread lookup, new treport, flamegraph and
       sqlite/postgres exporters.

     - Reenable and fix the attribute expectation test suite: per-PMU bit
       masks, other core PMUs' events, dummy tracking events, group checks
       and spelled out skip reasons.

     - perf trace: filter the target's tasks in BPF, open the BPF output
       event on every CPU, add an option to disable syscall augmentation and
       raise TRACE_AUG_MAX_BUF.

     - perf jitdump: harden record parsing, validating unwinding sizes and
       symbol names, byte-swapping debug entries via safe accessors and
       fixing frees on error paths.

     - perf annotate-data fixes: bound the member nesting recursion, resolve
       type DIEs in the debug file they came from, adjust the offset for
       flex-arrays and show the sample count in the data-type browser.

     - perf symbol and debug info: try linked debug files for DSOs, avoid
       repeated failing searches, set binary/symtab types for split
       kallsyms, JIT maps and the build-id cache, fix libbfd symbol loading.

     - perf config: serialize config file access with a mutex, add the
       DEFINE_MUTEX() and DO_ONCE() primitives and a robust process shared
       mutex, add the core.hybrid-merge option.

     - perf report: add --progress and --no-progress options.

     - perf mem: add a false sharing workload to 'perf test', request
       PERF_SAMPLE_CPU by default, use the IBS swfilt filter when available
       and decode L0 in the memory level.

     - perf test: take turns using the perf mlock budget in the mmaping
       tests, add the 'needs_mlock' suite flag, scope the probe based tests
       to their PID and make more tests non-exclusive.

     - perf vendor events intel: update events and metrics to TMA 5.2,
       refresh the event tables and fix umask encodings.

     - perf build: run shellcheck, mypy and pylint in parallel, make pylint
       opt-out with NO_PYLINT=1, fix clean and install dependencies.

     - Add a script and a 'make sync-headers' target to sync the tools/
       copies of kernel headers with the kernel sources, plus the resulting
       syncs of the cpufeatures, KVM, fs, mount, fcntl, socket, rtnetlink,
       if_addr and sound headers.

     - Fix cs-etm HW_ID mapping synthesis for raw trace, queue teardown
       leaks and duplicate v0 global mappings.

     - Add a 'perf bench atomic' benchmark for atomic operations.

     - Filter events before creating lock_stat in 'perf lock contention'.

     - Add a 'perf test' case for events re-armed with
       PERF_EVENT_IOC_REFRESH.

     - Fix memory leaks on 'perf c2c' output fields and add function view
       stdio coverage to its test.

     - Fix a NULL dereference resolving callchains in 'perf machine'.

     - Optimize the libdw fallback when DWARF is missing and try the symbol
       file first when checking for debuginfo.

     - Don't call eprintf() in pr_debugN() when not verbose.

     - Don't delete cumulative caller entries before the stat_acc decays in
       'perf report'.

     - Fix ring buffer cursor handling: keep the consumed cursor in forward
       mode and use the head selected by read_init.

     - Fix 'perf test mmap-basic' user rdpmc detection and only test
       userspace reading on supported platforms.

     - Build fixes: include sys/types.h for ssize_t, errno.h before kernel
       headers and fix jevents.py type annotations for mypy 2.x.

    * tag 'perf-tools-for-v7.4-1-2026-10-30' of git://git.kernel.org/pub/scm/linux/kernel/git/perf/perf-tools-next: (425 commits)
      perf machine: Fix NULL deref in thread__resolve_callchain_sample()
      perf pmu-events: Fix jevents.py type annotations for mypy 2.x
      perf parse-events: Include errno.h before kernel headers
      perf print_insn: Include sys/types.h for ssize_t
      perf tests mmap-basic: Fix user rdpmc detection logic
      perf tests mmap-basic: Only test userspace reading on supported platforms
      perf mmap: Preserve the consumed cursor in forward mode
      perf mmap: Use the head selected by read_init
      perf hist: Do not delete cumulative caller entries before stat_acc decays
      perf debug: Avoid calling eprintf() in pr_debugN() when verbose < n
      perf libdw: Optimize fallback logic for missing DWARF
      tools headers: Sync KVM headers with the kernel sources
      tools headers: Sync UAPI sound/asound.h with the kernel sources
      tools headers: Sync UAPI linux/mount.h with the kernel sources
      tools headers: Sync UAPI linux/fs.h with the kernel sources
      tools headers: Sync UAPI linux/fcntl.h with the kernel sources
      tools headers: Sync linux/socket.h with the kernel sources
      tools arch x86: Sync the cpufeatures.h copy with the kernel sources
      tools headers UAPI: Sync linux/rtnetlink.h with the kernel sources
      tools headers UAPI: Sync linux/if_addr.h with the kernel sources
      ...