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AJvYcCVnvIVedyy1uDUgTrkR9/K/OsXUJCLqeJv7Lvc+wFLkZx4Iv8vlVAPbyxjB8vv3V7ce/xIa0TGYriZi84A=@vger.kernel.org X-Gm-Message-State: AOJu0YyymtkLF8JXeFYliLnSVsmAc+nDLYax+EretPKgHyOWjGXhW+gA of8ilwfzEdhoveUr28pST4X4g66vQPTB0AJD8zG+jfvpa7nuLrX4dyzMiiCfExUUj9bFOu7rLKN nFH95qlGMaQ== X-Received: from dlak28.prod.google.com ([2002:a05:701b:291c:b0:128:f2cd:cb37]) (user=irogers job=prod-delivery.src-stubby-dispatcher) by 2002:a05:7022:69a0:b0:12a:71ab:8235 with SMTP id a92af1059eb24-12bfb6ed5c1mr1956832c88.6.1775248845302; Fri, 03 Apr 2026 13:40:45 -0700 (PDT) Date: Fri, 3 Apr 2026 13:40:01 -0700 In-Reply-To: <20260403204017.2919994-1-irogers@google.com> Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: Mime-Version: 1.0 References: <20260403204017.2919994-1-irogers@google.com> X-Mailer: git-send-email 2.53.0.1213.gd9a14994de-goog Message-ID: <20260403204017.2919994-10-irogers@google.com> Subject: [PATCH v5 09/25] perf lock: Only pass sample to handlers From: Ian Rogers To: acme@kernel.org, namhyung@kernel.org Cc: irogers@google.com, adrian.hunter@intel.com, ajones@ventanamicro.com, ak@linux.intel.com, alex@ghiti.fr, alexander.shishkin@linux.intel.com, anup@brainfault.org, aou@eecs.berkeley.edu, atrajeev@linux.ibm.com, blakejones@google.com, ctshao@google.com, dapeng1.mi@linux.intel.com, derek.foreman@collabora.com, dvyukov@google.com, howardchu95@gmail.com, hrishikesh123s@gmail.com, james.clark@linaro.org, jolsa@kernel.org, krzysztof.m.lopatowski@gmail.com, leo.yan@arm.com, linux-kernel@vger.kernel.org, linux-perf-users@vger.kernel.org, linux@treblig.org, mingo@redhat.com, nichen@iscas.ac.cn, palmer@dabbelt.com, peterz@infradead.org, pjw@kernel.org, ravi.bangoria@amd.com, swapnil.sapkal@amd.com, tanze@kylinos.cn, thomas.falcon@intel.com, tianyou.li@intel.com, yujie.liu@intel.com, zhouquan@iscas.ac.cn Content-Transfer-Encoding: quoted-printable Content-Type: text/plain; charset="utf-8" The evsel is within the sample and so only the sample needs to be passed. Remove the parameter and fix call site. Add an additional NULL check in get_callstack, as prompted by Sashiko during review. Signed-off-by: Ian Rogers --- tools/perf/builtin-lock.c | 68 +++++++++++++++++---------------------- 1 file changed, 29 insertions(+), 39 deletions(-) diff --git a/tools/perf/builtin-lock.c b/tools/perf/builtin-lock.c index e2b585e528ac..8ccb64415d3b 100644 --- a/tools/perf/builtin-lock.c +++ b/tools/perf/builtin-lock.c @@ -473,28 +473,22 @@ static struct lock_stat *pop_from_result(void) =20 struct trace_lock_handler { /* it's used on CONFIG_LOCKDEP */ - int (*acquire_event)(struct evsel *evsel, - struct perf_sample *sample); + int (*acquire_event)(struct perf_sample *sample); =20 /* it's used on CONFIG_LOCKDEP && CONFIG_LOCK_STAT */ - int (*acquired_event)(struct evsel *evsel, - struct perf_sample *sample); + int (*acquired_event)(struct perf_sample *sample); =20 /* it's used on CONFIG_LOCKDEP && CONFIG_LOCK_STAT */ - int (*contended_event)(struct evsel *evsel, - struct perf_sample *sample); + int (*contended_event)(struct perf_sample *sample); =20 /* it's used on CONFIG_LOCKDEP */ - int (*release_event)(struct evsel *evsel, - struct perf_sample *sample); + int (*release_event)(struct perf_sample *sample); =20 /* it's used when CONFIG_LOCKDEP is off */ - int (*contention_begin_event)(struct evsel *evsel, - struct perf_sample *sample); + int (*contention_begin_event)(struct perf_sample *sample); =20 /* it's used when CONFIG_LOCKDEP is off */ - int (*contention_end_event)(struct evsel *evsel, - struct perf_sample *sample); + int (*contention_end_event)(struct perf_sample *sample); }; =20 static struct lock_seq_stat *get_seq(struct thread_stat *ts, u64 addr) @@ -563,8 +557,7 @@ static int get_key_by_aggr_mode(u64 *key, u64 addr, return get_key_by_aggr_mode_simple(key, addr, sample->tid); } =20 -static int report_lock_acquire_event(struct evsel *evsel __maybe_unused, - struct perf_sample *sample) +static int report_lock_acquire_event(struct perf_sample *sample) { struct lock_stat *ls; struct thread_stat *ts; @@ -638,8 +631,7 @@ static int report_lock_acquire_event(struct evsel *evse= l __maybe_unused, return 0; } =20 -static int report_lock_acquired_event(struct evsel *evsel __maybe_unused, - struct perf_sample *sample) +static int report_lock_acquired_event(struct perf_sample *sample) { struct lock_stat *ls; struct thread_stat *ts; @@ -704,8 +696,7 @@ static int report_lock_acquired_event(struct evsel *evs= el __maybe_unused, return 0; } =20 -static int report_lock_contended_event(struct evsel *evsel __maybe_unused, - struct perf_sample *sample) +static int report_lock_contended_event(struct perf_sample *sample) { struct lock_stat *ls; struct thread_stat *ts; @@ -762,8 +753,7 @@ static int report_lock_contended_event(struct evsel *ev= sel __maybe_unused, return 0; } =20 -static int report_lock_release_event(struct evsel *evsel __maybe_unused, - struct perf_sample *sample) +static int report_lock_release_event(struct perf_sample *sample) { struct lock_stat *ls; struct thread_stat *ts; @@ -948,6 +938,9 @@ static u64 *get_callstack(struct perf_sample *sample, i= nt max_stack) u64 i; int c; =20 + if (!sample->callchain) + return NULL; + callstack =3D calloc(max_stack, sizeof(*callstack)); if (callstack =3D=3D NULL) return NULL; @@ -963,8 +956,7 @@ static u64 *get_callstack(struct perf_sample *sample, i= nt max_stack) return callstack; } =20 -static int report_lock_contention_begin_event(struct evsel *evsel __maybe_= unused, - struct perf_sample *sample) +static int report_lock_contention_begin_event(struct perf_sample *sample) { struct lock_stat *ls; struct thread_stat *ts; @@ -1127,8 +1119,7 @@ static int report_lock_contention_begin_event(struct = evsel *evsel __maybe_unused return 0; } =20 -static int report_lock_contention_end_event(struct evsel *evsel __maybe_un= used, - struct perf_sample *sample) +static int report_lock_contention_end_event(struct perf_sample *sample) { struct lock_stat *ls; struct thread_stat *ts; @@ -1208,45 +1199,45 @@ static struct trace_lock_handler contention_lock_op= s =3D { =20 static struct trace_lock_handler *trace_handler; =20 -static int evsel__process_lock_acquire(struct evsel *evsel, struct perf_sa= mple *sample) +static int evsel__process_lock_acquire(struct perf_sample *sample) { if (trace_handler->acquire_event) - return trace_handler->acquire_event(evsel, sample); + return trace_handler->acquire_event(sample); return 0; } =20 -static int evsel__process_lock_acquired(struct evsel *evsel, struct perf_s= ample *sample) +static int evsel__process_lock_acquired(struct perf_sample *sample) { if (trace_handler->acquired_event) - return trace_handler->acquired_event(evsel, sample); + return trace_handler->acquired_event(sample); return 0; } =20 -static int evsel__process_lock_contended(struct evsel *evsel, struct perf_= sample *sample) +static int evsel__process_lock_contended(struct perf_sample *sample) { if (trace_handler->contended_event) - return trace_handler->contended_event(evsel, sample); + return trace_handler->contended_event(sample); return 0; } =20 -static int evsel__process_lock_release(struct evsel *evsel, struct perf_sa= mple *sample) +static int evsel__process_lock_release(struct perf_sample *sample) { if (trace_handler->release_event) - return trace_handler->release_event(evsel, sample); + return trace_handler->release_event(sample); return 0; } =20 -static int evsel__process_contention_begin(struct evsel *evsel, struct per= f_sample *sample) +static int evsel__process_contention_begin(struct perf_sample *sample) { if (trace_handler->contention_begin_event) - return trace_handler->contention_begin_event(evsel, sample); + return trace_handler->contention_begin_event(sample); return 0; } =20 -static int evsel__process_contention_end(struct evsel *evsel, struct perf_= sample *sample) +static int evsel__process_contention_end(struct perf_sample *sample) { if (trace_handler->contention_end_event) - return trace_handler->contention_end_event(evsel, sample); + return trace_handler->contention_end_event(sample); return 0; } =20 @@ -1424,8 +1415,7 @@ static int process_event_update(const struct perf_too= l *tool, return 0; } =20 -typedef int (*tracepoint_handler)(struct evsel *evsel, - struct perf_sample *sample); +typedef int (*tracepoint_handler)(struct perf_sample *sample); =20 static int process_sample_event(const struct perf_tool *tool __maybe_unuse= d, union perf_event *event, @@ -1445,7 +1435,7 @@ static int process_sample_event(const struct perf_too= l *tool __maybe_unused, =20 if (evsel->handler !=3D NULL) { tracepoint_handler f =3D evsel->handler; - err =3D f(evsel, sample); + err =3D f(sample); } =20 thread__put(thread); --=20 2.53.0.1213.gd9a14994de-goog