Commit-ID: 54d751d4ad357c817907fe89db3222b97ff66db3 Gitweb: http://git.kernel.org/tip/54d751d4ad357c817907fe89db3222b97ff66db3 Author: Thomas Gleixner <[email protected]> AuthorDate: Mon, 22 Feb 2016 22:19:14 +0000 Committer: Ingo Molnar <[email protected]> CommitDate: Mon, 29 Feb 2016 09:35:16 +0100
perf: Allow storage of PMU private data in event For PMUs which are not per CPU, but e.g. per package/socket, we want to be able to store a reference to the underlying per package/socket facility in the event at init time so we can avoid magic storage constructs in the PMU driver. This allows us to get rid of the per CPU dance in the intel uncore and RAPL drivers and avoids a lookup of the per package data in the perf hotpath. Signed-off-by: Thomas Gleixner <[email protected]> Signed-off-by: Peter Zijlstra (Intel) <[email protected]> Cc: Andi Kleen <[email protected]> Cc: Arnaldo Carvalho de Melo <[email protected]> Cc: Borislav Petkov <[email protected]> Cc: Harish Chegondi <[email protected]> Cc: Jacob Pan <[email protected]> Cc: Jiri Olsa <[email protected]> Cc: Kan Liang <[email protected]> Cc: Linus Torvalds <[email protected]> Cc: Peter Zijlstra <[email protected]> Cc: Stephane Eranian <[email protected]> Cc: Vince Weaver <[email protected]> Cc: [email protected] Link: http://lkml.kernel.org/r/[email protected] Signed-off-by: Ingo Molnar <[email protected]> --- include/linux/perf_event.h | 1 + 1 file changed, 1 insertion(+) diff --git a/include/linux/perf_event.h b/include/linux/perf_event.h index f5c5a3f..a9d8cab 100644 --- a/include/linux/perf_event.h +++ b/include/linux/perf_event.h @@ -468,6 +468,7 @@ struct perf_event { int group_flags; struct perf_event *group_leader; struct pmu *pmu; + void *pmu_private; enum perf_event_active_state state; unsigned int attach_state;
