Merge tag 'perf-core-for-mingo-2.1' of git://git.kernel.org/pub/scm/linux/kernel...

Pull perf/core improvements from Arnaldo Carvalho de Melo:

User visible changes:

  - Add record.build-id config option to 'perf record', to allow configuring
    in the ~/.perfconfig file if and how build-ids should be processed, allowing
    a permanent setting for options such as -B and -N: (Namhyung Kim)

    $ perf record -h -B -N

     Usage: perf record [<options>] [<command>]
        or: perf record [<options>] -- <command> [<options>]

        -B, --no-buildid       do not collect buildids in perf.data
        -N, --no-buildid-cache do not update the buildid cache

    $

Infrastructure changes:

  - Move code for options parsing and subcommand handling from tools/perf/
    to tools/lib/subcmd/, so that it can be used by other tools/ living
    utilities (Josh Poimboeuf)

Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Signed-off-by: Ingo Molnar <mingo@kernel.org>