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The metricgroup__copy_metric_events() is to handle metrics events when expanding event for cgroups. As the metric events keep pointers to evsel, it should be refreshed when events are cloned during the operation. The perf_stat__collect_metric_expr() is also called in case an event has a metric directly. During the copy, it references evsel by index as the evlist now has cloned evsels for the given cgroup. Also kernel test robot found an issue in the python module import so add empty implementations of those two functions to fix it. Reported-by: kernel test robot <rong.a.chen@intel.com> Signed-off-by: Namhyung Kim <namhyung@kernel.org> Acked-by: Jiri Olsa <jolsa@redhat.com> Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com> Cc: Andi Kleen <ak@linux.intel.com> Cc: Ian Rogers <irogers@google.com> Cc: John Garry <john.garry@huawei.com> Cc: Kajol Jain <kjain@linux.ibm.com> Cc: Mark Rutland <mark.rutland@arm.com> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Stephane Eranian <eranian@google.com> Link: http://lore.kernel.org/lkml/20200924124455.336326-4-namhyung@kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
64 lines
1.6 KiB
C
64 lines
1.6 KiB
C
// SPDX-License-Identifier: GPL-2.0-only
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#ifndef METRICGROUP_H
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#define METRICGROUP_H 1
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#include <linux/list.h>
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#include <linux/rbtree.h>
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#include <stdbool.h>
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#include "pmu-events/pmu-events.h"
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struct evlist;
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struct evsel;
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struct evlist;
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struct option;
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struct rblist;
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struct pmu_events_map;
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struct cgroup;
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struct metric_event {
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struct rb_node nd;
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struct evsel *evsel;
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struct list_head head; /* list of metric_expr */
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};
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struct metric_ref {
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const char *metric_name;
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const char *metric_expr;
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};
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struct metric_expr {
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struct list_head nd;
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const char *metric_expr;
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const char *metric_name;
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const char *metric_unit;
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struct evsel **metric_events;
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struct metric_ref *metric_refs;
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int runtime;
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};
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struct metric_event *metricgroup__lookup(struct rblist *metric_events,
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struct evsel *evsel,
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bool create);
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int metricgroup__parse_groups(const struct option *opt,
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const char *str,
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bool metric_no_group,
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bool metric_no_merge,
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struct rblist *metric_events);
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int metricgroup__parse_groups_test(struct evlist *evlist,
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struct pmu_events_map *map,
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const char *str,
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bool metric_no_group,
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bool metric_no_merge,
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struct rblist *metric_events);
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void metricgroup__print(bool metrics, bool groups, char *filter,
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bool raw, bool details);
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bool metricgroup__has_metric(const char *metric);
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int arch_get_runtimeparam(struct pmu_event *pe __maybe_unused);
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void metricgroup__rblist_exit(struct rblist *metric_events);
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int metricgroup__copy_metric_events(struct evlist *evlist, struct cgroup *cgrp,
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struct rblist *new_metric_events,
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struct rblist *old_metric_events);
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#endif
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