Merge tag 'perf-urgent-for-mingo-4.18-20180611' of git://git.kernel.org/pub/scm/linux/kernel/git/acme/linux into perf/urgent

Pull perf/urgent fixes and improvements from Arnaldo Carvalho de Melo:

perf stat:

- Fix metric column header display alignment (Jiri Olsa)

- Improve error messages for default attributes, providing better output
  for error in command lines such as:

  $ perf stat -T
  Cannot set up transaction events
  event syntax error: '..cycles,cpu/cycles-t/,cpu/tx-start/,cpu/el-start/,cpu/cycles-ct/}'
                                    \___ unknown term

  Where the "event syntax error" line now appears (Jiri Olsa)

- Add --interval-clear option, to provide a 'watch' like printing (Jiri Olsa)

perf script:

- Show hw-cache events too (Seeteena Thoufeek)

perf c2c:

- Fix data dependency problem in layout of 'struct c2c_hist_entry', where
  its member 'struct hist_entry' must be at the end because it has a ZLA
  as its last member, that gets space when handling callchains (Jiri Olsa)

Core:

- We cannot assume that a 'struct perf_evsel'  is to be obtained from a
  container_of operation on a 'struct hists' as there are tools, such as
  'perf c2c' that uses 'struct hist' instances without having them in
  container structs that also have 'struct perf_evsel' in a particular
  layout, so provide a different way of figuring out if a 'struct hists'
  and 'struct hist_entry' have callchains (Arnaldo Carvalho de Melo)

- Fix error index in the PMU event parser, so that error messages can
  point to the problematic token (Jiri Olsa)

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

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