Merge tag 'perf-urgent-for-mingo-20160728' of git://git.kernel.org/pub/scm/linux...

Pull perf/urgent fix from Arnaldo Carvalho de Melo:

 - Fix the tools/vm/ build by making libapi provide the str_error_c function,
   that libapi uses but wasn't part of the list of objects linked with
   tools/vm/ programs.  (Arnaldo Carvalho de Melo)

Signed-off-by: Arnaldo Carvalho de Melo <[email protected]>
Signed-off-by: Ingo Molnar <[email protected]>