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

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

 * Allow specifying syscalls in 'perf trace', a la strace.

 * Simplify symbol filtering by doing it at machine class level,
   from Adrian Hunter.

 * Add option to 'perf kvm' to print only events that exceed a specified time
   duration, from David Ahern.

 * 'perf sched' improvements, including removing some tracepoints that provide
   the same information as the PERF_RECORD_{FORK,EXIT} events.

 * Improve stack trace printing, from David Ahern.

 * Update documentation with live command, from David Ahern

 * Fix 'perf test' compile failure on do_sort_something, from David Ahern.

 * Improve robustness of topology parsing code, from Stephane Eranian.

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