perf/x86/intel/rapl: Utilize event->pmu_private
authorThomas Gleixner <tglx@linutronix.de>
Mon, 22 Feb 2016 22:19:25 +0000 (22:19 +0000)
committerIngo Molnar <mingo@kernel.org>
Mon, 29 Feb 2016 08:35:25 +0000 (09:35 +0100)
commit8a6d2f8f73caa8b8eb596a9e2d2e0b15d64751a4
tree567015a2447fc8e2543b6036d74f1009734f688d
parenta208749c642618b6c106874153906b53f8e2ded9
perf/x86/intel/rapl: Utilize event->pmu_private

Store the PMU pointer in event->pmu_private and use it instead of the per CPU
data. Preparatory step to get rid of the per CPU allocations. The usage sites
are the perf fast path, so we keep that even after the conversion to per
package storage as a CPU to package lookup involves 3 loads versus 1 with the
pmu_private pointer.

Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Cc: Andi Kleen <andi.kleen@intel.com>
Cc: Arnaldo Carvalho de Melo <acme@redhat.com>
Cc: Borislav Petkov <bp@alien8.de>
Cc: Harish Chegondi <harish.chegondi@intel.com>
Cc: Jacob Pan <jacob.jun.pan@linux.intel.com>
Cc: Jiri Olsa <jolsa@redhat.com>
Cc: Kan Liang <kan.liang@intel.com>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Stephane Eranian <eranian@google.com>
Cc: Vince Weaver <vincent.weaver@maine.edu>
Cc: linux-kernel@vger.kernel.org
Link: http://lkml.kernel.org/r/20160222221012.748151799@linutronix.de
Signed-off-by: Ingo Molnar <mingo@kernel.org>
arch/x86/events/intel/rapl.c