[GIT PULL 00/18] perf/core improvements and fixes

[Arnaldo Carvalho de Melo <acme@kernel.org>]

Hi Ingo,

	Please consider pulling,

- Arnaldo

The following changes since commit 41e950c033b7df997d4b38653efe6554be9b96a7:

  Merge tag 'perf-core-for-mingo' of git://git.kernel.org/pub/scm/linux/kernel/git/acme/linux into perf/urgent (2014-12-12 09:09:52 +0100)

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 67195c75a87232f055ff415fc4624ef01f24fc3d:

  perf symbols: Fix use after free in filename__read_build_id (2014-12-16 13:38:28 -0300)

----------------------------------------------------------------
perf/core improvements and fixes:

User visible:

- The mmap address range for the ring buffer now is calculated using the
  contents of /proc/sys/kernel/perf_event_mlock_kb.

  This fixes an -EPERM case where 'trace' was trying to use more than what
  configured on perf_event_mlock_kb. (Arnaldo Carvalho de Melo)

Infrastructure:

- Move bitops definitions so that they match the header file hierarchy
  in the kernel sources where that code came from. (Arnaldo Carvalho de Melo)

- Adopt round{down,up}_pow_of_two from the kernel and use it instead of
  equivalent code, so that we reuse more kernel code and make tools/ look
  more like kernel source code, to encourage further contributions from
  kernel hackers (Arnaldo Carvalho de Melo)

- Fix use after free in filename__read_build_id (Mitchell Krome)

Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>

----------------------------------------------------------------
Arnaldo Carvalho de Melo (17):
      perf evlist: Fixup brown paper bag on "hint" for --mmap-pages cmdline arg
      perf evlist: Clarify sterror_mmap variable names
      perf evlist: Improve the strerror_mmap method
      perf trace: Let the perf_evlist__mmap autosize the number of pages to use
      perf evlist: Do not use hard coded value for a mmap_pages default
      tools: Move __ffs implementation to tools/include/asm-generic/bitops/__ffs.h
      tools: Move code originally from linux/log2.h to tools/include/linux/
      tools: Move code originally from asm-generic/atomic.h into tools/include/asm-generic/
      tools: Whitespace prep patches for moving bitops.h
      tools lib: Move asm-generic/bitops/find.h code to tools/include and tools/lib
      tools: Introduce asm-generic/bitops.h
      tools: Move bitops.h from tools/perf/util to tools/
      tools: Adopt fls_long and deps
      tools: Adopt rounddown_pow_of_two and deps
      perf tools: Make the mmap length autotuning more robust
      tools: Adopt roundup_pow_of_two
      perf evlist: Use roundup_pow_of_two

Mitchell Krome (1):
      perf symbols: Fix use after free in filename__read_build_id

 tools/include/asm-generic/bitops.h        |  27 +++++
 tools/include/asm-generic/bitops/__ffs.h  |  43 +++++++
 tools/include/asm-generic/bitops/__fls.h  |   1 +
 tools/include/asm-generic/bitops/atomic.h |  22 ++++
 tools/include/asm-generic/bitops/find.h   |  33 ++++++
 tools/include/asm-generic/bitops/fls.h    |   1 +
 tools/include/asm-generic/bitops/fls64.h  |   1 +
 tools/include/linux/bitops.h              |  53 +++++++++
 tools/include/linux/log2.h                | 185 ++++++++++++++++++++++++++++++
 tools/lib/util/find_next_bit.c            |  89 ++++++++++++++
 tools/perf/MANIFEST                       |  13 ++-
 tools/perf/Makefile.perf                  |  14 ++-
 tools/perf/builtin-trace.c                |   2 +-
 tools/perf/util/evlist.c                  |  46 ++++++--
 tools/perf/util/include/linux/bitops.h    | 162 --------------------------
 tools/perf/util/symbol-minimal.c          |   8 +-
 tools/perf/util/util.h                    |  29 -----
 17 files changed, 522 insertions(+), 207 deletions(-)
 create mode 100644 tools/include/asm-generic/bitops.h
 create mode 100644 tools/include/asm-generic/bitops/__ffs.h
 create mode 100644 tools/include/asm-generic/bitops/__fls.h
 create mode 100644 tools/include/asm-generic/bitops/atomic.h
 create mode 100644 tools/include/asm-generic/bitops/find.h
 create mode 100644 tools/include/asm-generic/bitops/fls.h
 create mode 100644 tools/include/asm-generic/bitops/fls64.h
 create mode 100644 tools/include/linux/bitops.h
 create mode 100644 tools/include/linux/log2.h
 create mode 100644 tools/lib/util/find_next_bit.c
 delete mode 100644 tools/perf/util/include/linux/bitops.h