From nobody Sun Feb 8 23:04:21 2026 Received: from mail-pg1-f202.google.com (mail-pg1-f202.google.com [209.85.215.202]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 0A94B25DB0A for ; Fri, 25 Apr 2025 21:40:42 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=209.85.215.202 ARC-Seal: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1745617245; cv=none; b=cbOWoIV7wWtFmrIhpTPMa+dQSVrGVpnVhncC+Dvnix222EoF4+9xD2IG5k+qMxIssnGFx6jCE7/SVvEXZn9RQ+I3n2Ns+7uBY/OeEkuUmVIbeWeDV2Qnb1XMS9qmB9ulD56mRQBA3h8dIc6pA4zIrrCduP47LnO44R5ybC2zt2c= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1745617245; c=relaxed/simple; bh=civL0ptmakP58BNTG6qRL/WfDNW9+VMZdvD44UQo1N4=; h=Date:In-Reply-To:Mime-Version:References:Message-ID:Subject:From: To:Content-Type; b=AeAPb3PkOIsmkWwZahN1AjnA2w8uu+eUnqquNeFSif6L1mXmcTz4Px/LRd6KgekkKuNAO9CZJwkUXOe0DQPd8iBHASQrQpQor2SLbIlkR0rgF7ubrMLuz2imyy5x9lLNO+uVRsy5hX5WhWf8zspwb9ARK3KKlRPkXz5/fOJ0590= ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dmarc=pass (p=reject dis=none) header.from=google.com; spf=pass smtp.mailfrom=flex--irogers.bounces.google.com; dkim=pass (2048-bit key) header.d=google.com header.i=@google.com header.b=FZyxdf6v; arc=none smtp.client-ip=209.85.215.202 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=reject dis=none) header.from=google.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=flex--irogers.bounces.google.com Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=google.com header.i=@google.com header.b="FZyxdf6v" Received: by mail-pg1-f202.google.com with SMTP id 41be03b00d2f7-af534e796baso1520388a12.3 for ; Fri, 25 Apr 2025 14:40:42 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=20230601; t=1745617242; x=1746222042; darn=vger.kernel.org; h=to:from:subject:message-id:references:mime-version:in-reply-to:date :from:to:cc:subject:date:message-id:reply-to; bh=PD/2gZzkdXqRjrGcRCMV5rPK+HPN6vuWAJ5aTNU/fMM=; b=FZyxdf6vIfEcVTxzWPLDxtB/ss62ZbMaPY2EO74jLnfNzg1DDlsj0TzYY0eWgcS0O0 34U2bPtfXzFadLZSTDto9UqDc57O4a4S8yZ8iN2HXr/aVH8AGnzCp99bb3cZT927kP0y bHaBmjFyTSi7BFhOoeivehYOrraMaoaQoEQBLltjaEAQVkIQR1tXB9s0rwBlPCdMcS+e 05Udm+ZGOOcGboOzABIdoN4g+wNFBe0nesHLEZ+mrw7NBEm/yT6QYQ5copaeHgH12dt5 lj7HcF1RAhuNaFJPwqxsu4bK6SWGsTaUsa+4HEfPCkuXStgUOw7Nr2Py9V1V0pvdFYNp TC4A== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20230601; t=1745617242; x=1746222042; h=to:from:subject:message-id:references:mime-version:in-reply-to:date :x-gm-message-state:from:to:cc:subject:date:message-id:reply-to; bh=PD/2gZzkdXqRjrGcRCMV5rPK+HPN6vuWAJ5aTNU/fMM=; b=gEXrUneA/+qtTJBHfrrBHJtrOsn6lJZ3Mje9X67Id5Dmyus5LEoL7HdRGYHiyFvdRL obo1+nEtGIYh8LHwot8lDj8gKmONeM4J4qNc7KGwnkollVEQKmjF4QQmHtQPD9Rf6hG6 z3HiMNUJGTiiqyeCCxSs5SCv8plGd+RMomecCN0NgrU7nSuXXDNlI2FerQfpLKFdh+N+ 83uV3pLAk6Jty1bLOL/zArmk0bLbMjeoIRI5DF3rZuhuxpj3jRZoT4now52C1VLdJrld dIoS1lMnXGCkDSO8G8iUJI9lZwbaw/H/nTlUXdDmUd7WaMvrl6JZMZtaHLm4/fPD+Rqr +LZw== X-Forwarded-Encrypted: i=1; AJvYcCXCWhf2D1aLmXBQcZbQ0TBZShjjjazRK2eA/rgKqqt8Dm6MRzgjeuG4FKWeA0x6k9rDF9U67wp3HBJGENo=@vger.kernel.org X-Gm-Message-State: AOJu0YzZBRA7posm438ktH/qmXnsi6Wao77E6tqrMyPHQ7xPR+LZeNcf lgr7pGPsFwxGAP9efbo5o3H8l9YVjH4uyHRvOnM9gaTabdzILAyz4KqM6nQ9FNm0/VqG89k9+sc hshUQvg== X-Google-Smtp-Source: AGHT+IFCtEhRCBjDW2a8s4jRDfOQsUoZ7gsKizv5ygUaW1sjDqLjtvAoq2pOpHphbv7xIzozUy8B6xlFSZN6 X-Received: from pgbee7.prod.google.com ([2002:a05:6a02:4587:b0:b16:7375:98d2]) (user=irogers job=prod-delivery.src-stubby-dispatcher) by 2002:a05:6a21:6d8c:b0:1f5:8e04:f186 with SMTP id adf61e73a8af0-2045b9c0068mr5774268637.35.1745617242379; Fri, 25 Apr 2025 14:40:42 -0700 (PDT) Date: Fri, 25 Apr 2025 14:40:08 -0700 In-Reply-To: <20250425214008.176100-1-irogers@google.com> Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: Mime-Version: 1.0 References: <20250425214008.176100-1-irogers@google.com> X-Mailer: git-send-email 2.49.0.850.g28803427d3-goog Message-ID: <20250425214008.176100-11-irogers@google.com> Subject: [PATCH v3 10/10] perf thread_map: Remove uid options From: Ian Rogers To: Peter Zijlstra , Ingo Molnar , Arnaldo Carvalho de Melo , Namhyung Kim , Mark Rutland , Alexander Shishkin , Jiri Olsa , Ian Rogers , Adrian Hunter , Kan Liang , James Clark , Dapeng Mi , Thomas Richter , Veronika Molnarova , Hao Ge , Howard Chu , Weilin Wang , Levi Yun , "Dr. David Alan Gilbert" , Dominique Martinet , Xu Yang , Tengda Wu , linux-perf-users@vger.kernel.org, linux-kernel@vger.kernel.org, bpf@vger.kernel.org Content-Transfer-Encoding: quoted-printable Content-Type: text/plain; charset="utf-8" Now the target doesn't have a uid, it is handled through BPF filters, remove the uid options to thread_map creation. Tidy up the functions used in tests to avoid passing unused arguments. Signed-off-by: Ian Rogers --- tools/perf/tests/event-times.c | 4 +-- tools/perf/tests/keep-tracking.c | 2 +- tools/perf/tests/mmap-basic.c | 2 +- tools/perf/tests/openat-syscall-all-cpus.c | 2 +- tools/perf/tests/openat-syscall.c | 2 +- tools/perf/tests/perf-time-to-tsc.c | 2 +- tools/perf/tests/switch-tracking.c | 2 +- tools/perf/tests/thread-map.c | 2 +- tools/perf/util/evlist.c | 2 +- tools/perf/util/python.c | 10 +++---- tools/perf/util/thread_map.c | 32 ++-------------------- tools/perf/util/thread_map.h | 6 ++-- 12 files changed, 20 insertions(+), 48 deletions(-) diff --git a/tools/perf/tests/event-times.c b/tools/perf/tests/event-times.c index 2148024b4f4a..ae3b98bb42cf 100644 --- a/tools/perf/tests/event-times.c +++ b/tools/perf/tests/event-times.c @@ -62,7 +62,7 @@ static int attach__current_disabled(struct evlist *evlist) =20 pr_debug("attaching to current thread as disabled\n"); =20 - threads =3D thread_map__new(-1, getpid(), UINT_MAX); + threads =3D thread_map__new_by_tid(getpid()); if (threads =3D=3D NULL) { pr_debug("thread_map__new\n"); return -1; @@ -88,7 +88,7 @@ static int attach__current_enabled(struct evlist *evlist) =20 pr_debug("attaching to current thread as enabled\n"); =20 - threads =3D thread_map__new(-1, getpid(), UINT_MAX); + threads =3D thread_map__new_by_tid(getpid()); if (threads =3D=3D NULL) { pr_debug("failed to call thread_map__new\n"); return -1; diff --git a/tools/perf/tests/keep-tracking.c b/tools/perf/tests/keep-track= ing.c index 5a3b2bed07f3..eafb49eb0b56 100644 --- a/tools/perf/tests/keep-tracking.c +++ b/tools/perf/tests/keep-tracking.c @@ -78,7 +78,7 @@ static int test__keep_tracking(struct test_suite *test __= maybe_unused, int subte int found, err =3D -1; const char *comm; =20 - threads =3D thread_map__new(-1, getpid(), UINT_MAX); + threads =3D thread_map__new_by_tid(getpid()); CHECK_NOT_NULL__(threads); =20 cpus =3D perf_cpu_map__new_online_cpus(); diff --git a/tools/perf/tests/mmap-basic.c b/tools/perf/tests/mmap-basic.c index bd2106628b34..04b547c6bdbe 100644 --- a/tools/perf/tests/mmap-basic.c +++ b/tools/perf/tests/mmap-basic.c @@ -46,7 +46,7 @@ static int test__basic_mmap(struct test_suite *test __may= be_unused, int subtest char sbuf[STRERR_BUFSIZE]; struct mmap *md; =20 - threads =3D thread_map__new(-1, getpid(), UINT_MAX); + threads =3D thread_map__new_by_tid(getpid()); if (threads =3D=3D NULL) { pr_debug("thread_map__new\n"); return -1; diff --git a/tools/perf/tests/openat-syscall-all-cpus.c b/tools/perf/tests/= openat-syscall-all-cpus.c index fb114118c876..3644d6f52c07 100644 --- a/tools/perf/tests/openat-syscall-all-cpus.c +++ b/tools/perf/tests/openat-syscall-all-cpus.c @@ -28,7 +28,7 @@ static int test__openat_syscall_event_on_all_cpus(struct = test_suite *test __mayb struct evsel *evsel; unsigned int nr_openat_calls =3D 111, i; cpu_set_t cpu_set; - struct perf_thread_map *threads =3D thread_map__new(-1, getpid(), UINT_MA= X); + struct perf_thread_map *threads =3D thread_map__new_by_tid(getpid()); char sbuf[STRERR_BUFSIZE]; char errbuf[BUFSIZ]; =20 diff --git a/tools/perf/tests/openat-syscall.c b/tools/perf/tests/openat-sy= scall.c index 131b62271bfa..b54cbe5f1808 100644 --- a/tools/perf/tests/openat-syscall.c +++ b/tools/perf/tests/openat-syscall.c @@ -20,7 +20,7 @@ static int test__openat_syscall_event(struct test_suite *= test __maybe_unused, int err =3D TEST_FAIL, fd; struct evsel *evsel; unsigned int nr_openat_calls =3D 111, i; - struct perf_thread_map *threads =3D thread_map__new(-1, getpid(), UINT_MA= X); + struct perf_thread_map *threads =3D thread_map__new_by_tid(getpid()); char sbuf[STRERR_BUFSIZE]; char errbuf[BUFSIZ]; =20 diff --git a/tools/perf/tests/perf-time-to-tsc.c b/tools/perf/tests/perf-ti= me-to-tsc.c index d3e40fa5482c..d4437410c99f 100644 --- a/tools/perf/tests/perf-time-to-tsc.c +++ b/tools/perf/tests/perf-time-to-tsc.c @@ -90,7 +90,7 @@ static int test__perf_time_to_tsc(struct test_suite *test= __maybe_unused, int su struct mmap *md; =20 =20 - threads =3D thread_map__new(-1, getpid(), UINT_MAX); + threads =3D thread_map__new_by_tid(getpid()); CHECK_NOT_NULL__(threads); =20 cpus =3D perf_cpu_map__new_online_cpus(); diff --git a/tools/perf/tests/switch-tracking.c b/tools/perf/tests/switch-t= racking.c index 8df3f9d9ffd2..96f880c922d1 100644 --- a/tools/perf/tests/switch-tracking.c +++ b/tools/perf/tests/switch-tracking.c @@ -351,7 +351,7 @@ static int test__switch_tracking(struct test_suite *tes= t __maybe_unused, int sub const char *comm; int err =3D -1; =20 - threads =3D thread_map__new(-1, getpid(), UINT_MAX); + threads =3D thread_map__new_by_tid(getpid()); if (!threads) { pr_debug("thread_map__new failed!\n"); goto out_err; diff --git a/tools/perf/tests/thread-map.c b/tools/perf/tests/thread-map.c index 1fe521466bf4..54209592168d 100644 --- a/tools/perf/tests/thread-map.c +++ b/tools/perf/tests/thread-map.c @@ -115,7 +115,7 @@ static int test__thread_map_remove(struct test_suite *t= est __maybe_unused, int s TEST_ASSERT_VAL("failed to allocate map string", asprintf(&str, "%d,%d", getpid(), getppid()) >=3D 0); =20 - threads =3D thread_map__new_str(str, NULL, 0, false); + threads =3D thread_map__new_str(str, /*tid=3D*/NULL, /*all_threads=3D*/fa= lse); free(str); =20 TEST_ASSERT_VAL("failed to allocate thread_map", diff --git a/tools/perf/util/evlist.c b/tools/perf/util/evlist.c index 86b11ffc09b7..ba9e69b5acba 100644 --- a/tools/perf/util/evlist.c +++ b/tools/perf/util/evlist.c @@ -1005,7 +1005,7 @@ int evlist__create_maps(struct evlist *evlist, struct= target *target) * per-thread data. thread_map__new_str will call * thread_map__new_all_cpus to enumerate all threads. */ - threads =3D thread_map__new_str(target->pid, target->tid, UINT_MAX, all_t= hreads); + threads =3D thread_map__new_str(target->pid, target->tid, all_threads); =20 if (!threads) return -1; diff --git a/tools/perf/util/python.c b/tools/perf/util/python.c index f3c05da25b4a..56f8ae4cebf7 100644 --- a/tools/perf/util/python.c +++ b/tools/perf/util/python.c @@ -566,14 +566,14 @@ struct pyrf_thread_map { static int pyrf_thread_map__init(struct pyrf_thread_map *pthreads, PyObject *args, PyObject *kwargs) { - static char *kwlist[] =3D { "pid", "tid", "uid", NULL }; - int pid =3D -1, tid =3D -1, uid =3D UINT_MAX; + static char *kwlist[] =3D { "pid", "tid", NULL }; + int pid =3D -1, tid =3D -1; =20 - if (!PyArg_ParseTupleAndKeywords(args, kwargs, "|iii", - kwlist, &pid, &tid, &uid)) + if (!PyArg_ParseTupleAndKeywords(args, kwargs, "|ii", + kwlist, &pid, &tid)) return -1; =20 - pthreads->threads =3D thread_map__new(pid, tid, uid); + pthreads->threads =3D thread_map__new(pid, tid); if (pthreads->threads =3D=3D NULL) return -1; return 0; diff --git a/tools/perf/util/thread_map.c b/tools/perf/util/thread_map.c index b5f12390c355..ca193c1374ed 100644 --- a/tools/perf/util/thread_map.c +++ b/tools/perf/util/thread_map.c @@ -72,7 +72,7 @@ struct perf_thread_map *thread_map__new_by_tid(pid_t tid) return threads; } =20 -static struct perf_thread_map *__thread_map__new_all_cpus(uid_t uid) +static struct perf_thread_map *thread_map__new_all_cpus(void) { DIR *proc; int max_threads =3D 32, items, i; @@ -98,15 +98,6 @@ static struct perf_thread_map *__thread_map__new_all_cpu= s(uid_t uid) if (*end) /* only interested in proper numerical dirents */ continue; =20 - snprintf(path, sizeof(path), "/proc/%s", dirent->d_name); - - if (uid !=3D UINT_MAX) { - struct stat st; - - if (stat(path, &st) !=3D 0 || st.st_uid !=3D uid) - continue; - } - snprintf(path, sizeof(path), "/proc/%d/task", pid); items =3D scandir(path, &namelist, filter, NULL); if (items <=3D 0) { @@ -157,24 +148,11 @@ static struct perf_thread_map *__thread_map__new_all_= cpus(uid_t uid) goto out_closedir; } =20 -struct perf_thread_map *thread_map__new_all_cpus(void) -{ - return __thread_map__new_all_cpus(UINT_MAX); -} - -struct perf_thread_map *thread_map__new_by_uid(uid_t uid) -{ - return __thread_map__new_all_cpus(uid); -} - -struct perf_thread_map *thread_map__new(pid_t pid, pid_t tid, uid_t uid) +struct perf_thread_map *thread_map__new(pid_t pid, pid_t tid) { if (pid !=3D -1) return thread_map__new_by_pid(pid); =20 - if (tid =3D=3D -1 && uid !=3D UINT_MAX) - return thread_map__new_by_uid(uid); - return thread_map__new_by_tid(tid); } =20 @@ -289,15 +267,11 @@ struct perf_thread_map *thread_map__new_by_tid_str(co= nst char *tid_str) goto out; } =20 -struct perf_thread_map *thread_map__new_str(const char *pid, const char *t= id, - uid_t uid, bool all_threads) +struct perf_thread_map *thread_map__new_str(const char *pid, const char *t= id, bool all_threads) { if (pid) return thread_map__new_by_pid_str(pid); =20 - if (!tid && uid !=3D UINT_MAX) - return thread_map__new_by_uid(uid); - if (all_threads) return thread_map__new_all_cpus(); =20 diff --git a/tools/perf/util/thread_map.h b/tools/perf/util/thread_map.h index 00ec05fc1656..fc16d87f32fb 100644 --- a/tools/perf/util/thread_map.h +++ b/tools/perf/util/thread_map.h @@ -11,13 +11,11 @@ struct perf_record_thread_map; struct perf_thread_map *thread_map__new_dummy(void); struct perf_thread_map *thread_map__new_by_pid(pid_t pid); struct perf_thread_map *thread_map__new_by_tid(pid_t tid); -struct perf_thread_map *thread_map__new_by_uid(uid_t uid); -struct perf_thread_map *thread_map__new_all_cpus(void); -struct perf_thread_map *thread_map__new(pid_t pid, pid_t tid, uid_t uid); +struct perf_thread_map *thread_map__new(pid_t pid, pid_t tid); struct perf_thread_map *thread_map__new_event(struct perf_record_thread_ma= p *event); =20 struct perf_thread_map *thread_map__new_str(const char *pid, - const char *tid, uid_t uid, bool all_threads); + const char *tid, bool all_threads); =20 struct perf_thread_map *thread_map__new_by_tid_str(const char *tid_str); =20 --=20 2.49.0.850.g28803427d3-goog