Messages in this thread Patch in this message |  | | Date | Tue, 28 Apr 2026 00:18:17 -0700 | | Subject | [PATCH v8 12/58] perf python: Use evsel in sample in pyrf_event | | From | Ian Rogers <> |
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Avoid a duplicated evsel by using the one in sample. Add evsel__get/put to the evsel in perf_sample.
Signed-off-by: Ian Rogers <irogers@google.com> --- tools/perf/util/evsel.c | 2 +- tools/perf/util/python.c | 10 +++------- tools/perf/util/sample.c | 17 ++++++++++++----- 3 files changed, 16 insertions(+), 13 deletions(-)
diff --git a/tools/perf/util/evsel.c b/tools/perf/util/evsel.c index 3015b9b4b4da..9b16d832810f 100644 --- a/tools/perf/util/evsel.c +++ b/tools/perf/util/evsel.c @@ -3235,7 +3235,7 @@ int evsel__parse_sample(struct evsel *evsel, union perf_event *event, union u64_swap u; perf_sample__init(data, /*all=*/true); - data->evsel = evsel; + data->evsel = evsel__get(evsel); data->cpu = data->pid = data->tid = -1; data->stream_id = data->id = data->time = -1ULL; data->period = evsel->core.attr.sample_period; diff --git a/tools/perf/util/python.c b/tools/perf/util/python.c index 4b8d6349b7b1..61a7ee1f4c2f 100644 --- a/tools/perf/util/python.c +++ b/tools/perf/util/python.c @@ -43,7 +43,6 @@ PyMODINIT_FUNC PyInit_perf(void); struct pyrf_event { PyObject_HEAD - struct evsel *evsel; struct perf_sample sample; union perf_event event; }; @@ -274,7 +273,6 @@ static PyMemberDef pyrf_sample_event__members[] = { static void pyrf_sample_event__delete(struct pyrf_event *pevent) { - evsel__put(pevent->evsel); perf_sample__exit(&pevent->sample); Py_TYPE(pevent)->tp_free((PyObject*)pevent); } @@ -296,7 +294,7 @@ static PyObject *pyrf_sample_event__repr(const struct pyrf_event *pevent) #ifdef HAVE_LIBTRACEEVENT static bool is_tracepoint(const struct pyrf_event *pevent) { - return pevent->evsel->core.attr.type == PERF_TYPE_TRACEPOINT; + return pevent->sample.evsel->core.attr.type == PERF_TYPE_TRACEPOINT; } static PyObject* @@ -343,7 +341,7 @@ tracepoint_field(const struct pyrf_event *pe, struct tep_format_field *field) static PyObject* get_tracepoint_field(struct pyrf_event *pevent, PyObject *attr_name) { - struct evsel *evsel = pevent->evsel; + struct evsel *evsel = pevent->sample.evsel; struct tep_event *tp_format = evsel__tp_format(evsel); struct tep_format_field *field; @@ -509,7 +507,7 @@ static PyObject *pyrf_event__new(const union perf_event *event) pevent = PyObject_New(struct pyrf_event, ptype); if (pevent != NULL) { memcpy(&pevent->event, event, event->header.size); - pevent->evsel = NULL; + perf_sample__init(&pevent->sample, /*all=*/false); } return (PyObject *)pevent; } @@ -1798,8 +1796,6 @@ static PyObject *pyrf_evlist__read_on_cpu(struct pyrf_evlist *pevlist, return Py_None; } - pevent->evsel = evsel__get(evsel); - perf_mmap__consume(&md->core); err = evsel__parse_sample(evsel, &pevent->event, &pevent->sample); diff --git a/tools/perf/util/sample.c b/tools/perf/util/sample.c index cf73329326d7..7ec534dedc5c 100644 --- a/tools/perf/util/sample.c +++ b/tools/perf/util/sample.c @@ -1,18 +1,23 @@ /* SPDX-License-Identifier: GPL-2.0 */ #include "sample.h" + +#include <stdlib.h> +#include <string.h> + +#include <elf.h> +#include <linux/zalloc.h> + #include "debug.h" +#include "evsel.h" #include "thread.h" -#include <elf.h> +#include "../../arch/x86/include/asm/insn.h" + #ifndef EM_CSKY #define EM_CSKY 252 #endif #ifndef EM_LOONGARCH #define EM_LOONGARCH 258 #endif -#include <linux/zalloc.h> -#include <stdlib.h> -#include <string.h> -#include "../../arch/x86/include/asm/insn.h" void perf_sample__init(struct perf_sample *sample, bool all) { @@ -29,6 +34,8 @@ void perf_sample__init(struct perf_sample *sample, bool all) void perf_sample__exit(struct perf_sample *sample) { + evsel__put(sample->evsel); + sample->evsel = NULL; zfree(&sample->user_regs); zfree(&sample->intr_regs); if (sample->merged_callchain) { -- 2.54.0.545.g6539524ca2-goog
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