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

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

 * libtraceevent build fixes from Namhyung Kim

 * Prevent overflow when calculating annotation buckets size, from Cody Schafer

 * Set breakpoint events sample period to 1, just like trace events, from Jovi Zhang

 * Fix strerror_r usage, from Kirill Shutemov

 * Fix duplicate function declaration problems with bison 2.6, from Kirill Shutemov

 * Add DSO caching facility (and perf test entry) to speed up binary file
   reading, will be used by the DWARF unwind code, from Jiri Olsa

 * Fix trace event storms by setting PERF_SAMPLE_PERIOD, from Frederic Weisbecker

 * perf kvm fixes from David Ahern

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