pinned_groups 754 include/linux/perf_event.h struct perf_event_groups pinned_groups; pinned_groups 1510 kernel/events/core.c return &ctx->pinned_groups; pinned_groups 3445 kernel/events/core.c visit_groups_merge(&ctx->pinned_groups, pinned_groups 3543 kernel/events/core.c if (!RB_EMPTY_ROOT(&ctx->pinned_groups.tree)) pinned_groups 4176 kernel/events/core.c perf_event_groups_init(&ctx->pinned_groups); pinned_groups 12028 kernel/events/core.c perf_event_groups_for_each(event, &parent_ctx->pinned_groups) {