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    SubjectRe: [GIT PULL 00/30] perf/core improvements and fixes

    * Arnaldo Carvalho de Melo <acme@kernel.org> wrote:

    > Hi Ingo,
    >
    > Please consider pulling,
    >
    > - Arnaldo
    >
    >
    >
    > The following changes since commit cb307113746b4d184155d2c412e8069aeaa60d42:
    >
    > perf_event: Don't allow vmalloc() backed perf on powerpc (2015-05-08 12:26:01 +0200)
    >
    > are available in the git repository at:
    >
    > git://git.kernel.org/pub/scm/linux/kernel/git/acme/linux.git tags/perf-core-for-mingo
    >
    > for you to fetch changes up to 76d408498b08447e0f61dfdd611aeb6e8e61ce80:
    >
    > perf build: Disable libdw DWARF unwind when built with NO_DWARF (2015-05-08 16:43:14 -0300)
    >
    > ----------------------------------------------------------------
    > perf/core improvements and fixes:
    >
    > User visible:
    >
    > - 'perf probe' improvements (Masami Hiramatsu)
    >
    > - Support glob wildcards for function name
    > - Support $params special probe argument: Collect all function arguments
    > - Make --line checks validate C-style function name.
    > - Add --no-inlines option to avoid searching inline functions
    >
    > - Introduce new 'perf bench futex' benchmark: 'wake-parallel', to
    > measure parallel waker threads generating contention for kerne
    > locks (hb->lock) (Davidlohr Bueso)
    >
    > Bug fixes:
    >
    > - 'perf top' survives much longer on high core count machines, more work
    > needed to refcount more data structures besides 'struct thread' and fix
    > more races (Arnaldo Carvalho de Melo)
    >
    > Infrastructure:
    >
    > - Move barrier.h mb/rmb/wmb API from tools/perf/ to kernel like tools/arch/
    > hierarchy (Arnaldo Carvalho de Melo)
    >
    > - Borrow atomic.h from the kernel, initially the x86 implementations
    > with a fallback to gcc intrinsics for the other arches, all the kernel
    > like framework in place for doing arch specific implementations,
    > preferrably cloning what is in the kernel to the greater extent
    > possible (Arnaldo Carvalho de Melo)
    >
    > - Protect the 'struct thread' lifetime with a reference counter,
    > and protect data structures that contains its instances with
    > a mutex (Arnaldo Carvalho de Melo
    >
    > - Disable libdw DWARF unwind when built with NO_DWARF (Naveen N. Rao)
    >
    > Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
    >
    > ----------------------------------------------------------------
    > Arnaldo Carvalho de Melo (17):
    > perf tools: Move x86 barrier.h stuff to tools/arch/x86/include/asm/barrier.h
    > perf tools: Move powerpc barrier.h stuff to tools/arch/powerpc/include/asm/barrier.h
    > perf tools: Move s390 barrier.h stuff to tools/arch/s390/include/asm/barrier.h
    > perf tools: Move barrier() definition to tools/include/linux/compiler.h
    > tools: Adopt asm-generic/barrier.h
    > perf tools: Move sh barrier.h stuff to tools/arch/sh/include/asm/barrier.h
    > perf tools: Move sparc barrier.h stuff to tools/arch/sparc/include/asm/barrier.h
    > perf tools: Move alpha barrier.h stuff to tools/arch/alpha/include/asm/barrier.h
    > perf tools: Move ia64 barrier.h stuff to tools/arch/ia64/include/asm/barrier.h
    > perf tools: Move arm(64) barrier.h stuff to tools/arch/arm*/include/asm/barrier.h
    > perf tools: Move xtensa barrier.h stuff to tools/arch/xtensa/include/asm/barrier.h
    > perf tools: Move mips barrier.h stuff to tools/arch/mips/include/asm/barrier.h
    > perf tools: Move tile barrier.h stuff to tools/arch/tile/include/asm/barrier.h
    > perf tools: Move generic barriers out of perf-sys.h
    > tools include: Add basic atomic.h implementation from the kernel sources
    > perf tools: Use atomic_t to implement thread__{get,put} refcnt
    > perf machine: Protect the machine->threads with a rwlock
    >
    > Davidlohr Bueso (2):
    > perf bench futex: Support parallel waker threads
    > perf bench futex: Handle spurious wakeups
    >
    > Masami Hiramatsu (10):
    > perf probe: Fix to close probe_events file in error
    > perf probe: Fix a typo for the flags of open
    > perf probe: Fix to return 0 when positive value returned
    > perf probe: Make --line checks validate C-style function name
    > perf probe: Skip kernel symbols which is out of .text
    > perf probe: Support $params special probe argument
    > perf probe: Use perf_probe_event.target instead of passing as an argument
    > perf probe: Introduce probe_conf global configs
    > perf probe: Add --no-inlines option to avoid searching inline functions
    > perf probe: Support glob wildcards for function name
    >
    > Naveen N. Rao (1):
    > perf build: Disable libdw DWARF unwind when built with NO_DWARF
    >
    > tools/arch/alpha/include/asm/barrier.h | 8 +
    > tools/arch/arm/include/asm/barrier.h | 12 ++
    > tools/arch/arm64/include/asm/barrier.h | 16 ++
    > tools/arch/ia64/include/asm/barrier.h | 48 +++++
    > tools/arch/mips/include/asm/barrier.h | 20 ++
    > tools/arch/powerpc/include/asm/barrier.h | 29 +++
    > tools/arch/s390/include/asm/barrier.h | 30 +++
    > tools/arch/sh/include/asm/barrier.h | 32 ++++
    > tools/arch/sparc/include/asm/barrier.h | 8 +
    > tools/arch/sparc/include/asm/barrier_32.h | 6 +
    > tools/arch/sparc/include/asm/barrier_64.h | 42 +++++
    > tools/arch/tile/include/asm/barrier.h | 15 ++
    > tools/arch/x86/include/asm/atomic.h | 65 +++++++
    > tools/arch/x86/include/asm/barrier.h | 28 +++
    > tools/arch/x86/include/asm/rmwcc.h | 41 +++++
    > tools/arch/xtensa/include/asm/barrier.h | 18 ++
    > tools/include/asm-generic/atomic-gcc.h | 63 +++++++
    > tools/include/asm-generic/barrier.h | 44 +++++
    > tools/include/asm/atomic.h | 10 +
    > tools/include/asm/barrier.h | 27 +++
    > tools/include/linux/atomic.h | 6 +
    > tools/include/linux/compiler.h | 4 +
    > tools/include/linux/types.h | 4 +
    > tools/perf/Documentation/perf-bench.txt | 3 +
    > tools/perf/Documentation/perf-probe.txt | 6 +-
    > tools/perf/MANIFEST | 19 ++
    > tools/perf/bench/Build | 1 +
    > tools/perf/bench/bench.h | 2 +
    > tools/perf/bench/futex-wake-parallel.c | 294 ++++++++++++++++++++++++++++++
    > tools/perf/bench/futex-wake.c | 7 +-
    > tools/perf/builtin-annotate.c | 10 +-
    > tools/perf/builtin-bench.c | 1 +
    > tools/perf/builtin-diff.c | 9 +-
    > tools/perf/builtin-inject.c | 1 +
    > tools/perf/builtin-kmem.c | 7 +-
    > tools/perf/builtin-kvm.c | 6 +-
    > tools/perf/builtin-lock.c | 8 +-
    > tools/perf/builtin-mem.c | 5 +-
    > tools/perf/builtin-probe.c | 26 +--
    > tools/perf/builtin-report.c | 9 +-
    > tools/perf/builtin-sched.c | 82 ++++++---
    > tools/perf/builtin-script.c | 20 +-
    > tools/perf/builtin-timechart.c | 5 +-
    > tools/perf/builtin-top.c | 2 +-
    > tools/perf/builtin-trace.c | 36 ++--
    > tools/perf/config/Makefile | 4 +
    > tools/perf/perf-sys.h | 73 +-------
    > tools/perf/tests/code-reading.c | 22 ++-
    > tools/perf/tests/dwarf-unwind.c | 1 +
    > tools/perf/tests/hists_common.c | 1 +
    > tools/perf/tests/hists_cumulate.c | 4 +-
    > tools/perf/tests/hists_filter.c | 4 +-
    > tools/perf/tests/hists_link.c | 8 +-
    > tools/perf/tests/hists_output.c | 4 +-
    > tools/perf/tests/mmap-thread-lookup.c | 2 +
    > tools/perf/tests/thread-mg-share.c | 12 +-
    > tools/perf/util/build-id.c | 5 +-
    > tools/perf/util/db-export.c | 14 +-
    > tools/perf/util/dwarf-aux.c | 16 ++
    > tools/perf/util/dwarf-aux.h | 3 +
    > tools/perf/util/event.c | 15 ++
    > tools/perf/util/event.h | 2 +
    > tools/perf/util/machine.c | 89 +++++++--
    > tools/perf/util/machine.h | 5 +-
    > tools/perf/util/probe-event.c | 177 ++++++++++--------
    > tools/perf/util/probe-event.h | 15 +-
    > tools/perf/util/probe-finder.c | 73 +++++---
    > tools/perf/util/probe-finder.h | 10 +-
    > tools/perf/util/thread.c | 14 +-
    > tools/perf/util/thread.h | 3 +-
    > tools/perf/util/util.h | 4 +
    > 71 files changed, 1392 insertions(+), 323 deletions(-)
    > create mode 100644 tools/arch/alpha/include/asm/barrier.h
    > create mode 100644 tools/arch/arm/include/asm/barrier.h
    > create mode 100644 tools/arch/arm64/include/asm/barrier.h
    > create mode 100644 tools/arch/ia64/include/asm/barrier.h
    > create mode 100644 tools/arch/mips/include/asm/barrier.h
    > create mode 100644 tools/arch/powerpc/include/asm/barrier.h
    > create mode 100644 tools/arch/s390/include/asm/barrier.h
    > create mode 100644 tools/arch/sh/include/asm/barrier.h
    > create mode 100644 tools/arch/sparc/include/asm/barrier.h
    > create mode 100644 tools/arch/sparc/include/asm/barrier_32.h
    > create mode 100644 tools/arch/sparc/include/asm/barrier_64.h
    > create mode 100644 tools/arch/tile/include/asm/barrier.h
    > create mode 100644 tools/arch/x86/include/asm/atomic.h
    > create mode 100644 tools/arch/x86/include/asm/barrier.h
    > create mode 100644 tools/arch/x86/include/asm/rmwcc.h
    > create mode 100644 tools/arch/xtensa/include/asm/barrier.h
    > create mode 100644 tools/include/asm-generic/atomic-gcc.h
    > create mode 100644 tools/include/asm-generic/barrier.h
    > create mode 100644 tools/include/asm/atomic.h
    > create mode 100644 tools/include/asm/barrier.h
    > create mode 100644 tools/include/linux/atomic.h
    > create mode 100644 tools/perf/bench/futex-wake-parallel.c

    Pulled, thanks a lot Arnaldo!

    Ingo



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