From nobody Wed Oct 8 14:42:01 2025 Received: from mail-pf1-f201.google.com (mail-pf1-f201.google.com [209.85.210.201]) (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 A8F4A22FE10 for ; Sat, 28 Jun 2025 04:51:23 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=209.85.210.201 ARC-Seal: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1751086286; cv=none; b=az584d2mVUMtxZKsIyYS5jvHtR0Qp2kAfR5j52vH/UnU/dBHuX1W7FmMkCY0JBjlKIvgecRjaKmF122Qycd4kPHqAtR/+BPDn6txmVZ5jd/ieAPFDJSpGzpViYwD7XmmCa3axYPITUsHphaqLdcXJ+2h+m1jWnLt9leKXn7XjXE= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1751086286; c=relaxed/simple; bh=1mrcw1eUzyK9YbP9S7+x5wWLBu9678+qgj//bB2V2FY=; h=Date:In-Reply-To:Mime-Version:References:Message-ID:Subject:From: To:Content-Type; b=XmFTr1w9VJsGPWl37MQo+ogGitlxnNYOrqCuQsGkTtlBCZ4rPF87fuwJXgnR0YQp3A17k0+fq4IOlhx/kskp3ELs8QO9Kvr0mIYn2TNjMIAPoIbIFXilthSPFP6RB8KUH2yU8TMi1GriiPVKwpXKowdWs1tNvg0fV+S4gHi0GpU= 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=xfm84ihi; arc=none smtp.client-ip=209.85.210.201 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="xfm84ihi" Received: by mail-pf1-f201.google.com with SMTP id d2e1a72fcca58-748f30d56d1so1500058b3a.3 for ; Fri, 27 Jun 2025 21:51:23 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=20230601; t=1751086283; x=1751691083; 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=sF4qV4DgtjiQLBphxxTlw2wew86VLfxLJVROJefkN+o=; b=xfm84ihibwnBJ4eTE4fu7t36JUgWpfdR1498ZK1lZ5CGfE/0Ti9HMipbLEj2/qI60H Jv75/pPOrnGnlc5VkkarQAaIwd02sjR8darU6AGykMGPVzKOwow91c0xiQKVnjh1jLeD Z91GGaPZtnlr+Up5vf8mhgcaXbvsl6OT46PWQTROhGbY5rnqBfl2ROEy41TibNB9sCUP KSBU41nMeVVKAzk0jkqOgrIAXCpZrv65it4oWNvBf5wOj4AVIp8nbt+CEli24v8fiB0h aJj40Lg+5reNDpHnCHys4DQ0hHwhkj8XJEgx5/gsgt+r4xUG6hXFFME+JPqxJUAnSvvB K+vw== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20230601; t=1751086283; x=1751691083; 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=sF4qV4DgtjiQLBphxxTlw2wew86VLfxLJVROJefkN+o=; b=wx4wnGkuLdeFvwuJJUxRpfT3T1HWun672PpNdllzkl1AoFM1ROP6eiu/WRG4CPgn4Z jZBz71YMdgLB0bigEurRLZrOBopQPsDfyWACTQMHyDOo+OveBdGuPxzy8Ze/Wi4Hl/pb DDPgbGRFtYrXtnlBDVmyJEhKH42vIvkuZE5AaOOMLlYVus0CYUxM8xQqrg13bwRUQwOh uQnA750yV2IVRIj/K4ByUKjuee1qXfDHpJzvV3eaUXp813+0b5sssOUl2j91aRAsg6pz pNuPGSloIP3qNp35d8RrCQ2721m03SI6PctkybNE8jYDc2Wsqqv3ut3L/WIeGKGiyztP 2DkQ== X-Forwarded-Encrypted: i=1; AJvYcCULl8v3bXHooaSt3ashc51es36wqjfhE46SLsnrAn32Qwz9ea0rX4/XUnzBaMz+iHsRrX6BSBVedJkQ0DY=@vger.kernel.org X-Gm-Message-State: AOJu0YxSD23qLNvCZV93ni0ai+ooskQwrdfmsag9xfQ1v5anYRt4JjRb jGR9WEjbYLxkwo0AqMSv813qKNN8sDapf0bcrfYCJr2E9G75vgOG/7TxkU7amw9ayPHyfWO6Yyr QPg5lh6QWTQ== X-Google-Smtp-Source: AGHT+IHN3BGfXu1/P6gldvYF17eMS9Ry+qQuwL6y5uQS3sgX4NqfOXWImYMrFh5fAFdCo1+ETJBjX/9l5Anx X-Received: from pgcc24.prod.google.com ([2002:a63:1c18:0:b0:b34:c32a:5da8]) (user=irogers job=prod-delivery.src-stubby-dispatcher) by 2002:a05:6a20:72a6:b0:21c:faa4:9ab8 with SMTP id adf61e73a8af0-220a12d167emr8525541637.10.1751086283101; Fri, 27 Jun 2025 21:51:23 -0700 (PDT) Date: Fri, 27 Jun 2025 21:50:14 -0700 In-Reply-To: <20250628045017.1361563-1-irogers@google.com> Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: Mime-Version: 1.0 References: <20250628045017.1361563-1-irogers@google.com> X-Mailer: git-send-email 2.50.0.727.gbf7dc18ff4-goog Message-ID: <20250628045017.1361563-21-irogers@google.com> Subject: [PATCH v5 20/23] perf env: Remove global perf_env 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 , John Garry , Will Deacon , James Clark , Mike Leach , Leo Yan , "Masami Hiramatsu (Google)" , Ravi Bangoria , Charlie Jenkins , Colin Ian King , Andi Kleen , Dmitry Vyukov , Graham Woodward , Ilkka Koskinen , Zhongqiu Han , Yicong Yang , Athira Rajeev , Kajol Jain , Li Huafei , "Steinar H. Gunderson" , Stephen Brennan , Chun-Tse Shao , Yujie Liu , "Dr. David Alan Gilbert" , Levi Yun , Howard Chu , Weilin Wang , Thomas Falcon , Matt Fleming , Veronika Molnarova , "=?UTF-8?q?Krzysztof=20=C5=81opatowski?=" , Zixian Cai , Steve Clevenger , Ben Gainey , Chaitanya S Prakash , Martin Liska , "=?UTF-8?q?Martin=20Li=C5=A1ka?=" , Song Liu , linux-kernel@vger.kernel.org, linux-perf-users@vger.kernel.org, linux-arm-kernel@lists.infradead.org Content-Transfer-Encoding: quoted-printable Content-Type: text/plain; charset="utf-8" The global perf_env was used for the host, but if a perf_env wasn't easy to come by it was used in a lot of places where potentially recorded and host data could be confused. Remove the global variable as now the majority of accesses retrieve the perf_env for the host from the session. Signed-off-by: Ian Rogers --- tools/perf/perf.c | 3 --- tools/perf/util/bpf-event.c | 2 +- tools/perf/util/env.c | 2 -- tools/perf/util/env.h | 2 -- tools/perf/util/evsel.c | 2 +- tools/perf/util/session.c | 3 ++- 6 files changed, 4 insertions(+), 10 deletions(-) diff --git a/tools/perf/perf.c b/tools/perf/perf.c index f0617cc41f5f..88c60ecf3395 100644 --- a/tools/perf/perf.c +++ b/tools/perf/perf.c @@ -346,12 +346,9 @@ static int run_builtin(struct cmd_struct *p, int argc,= const char **argv) use_pager =3D 1; commit_pager_choice(); =20 - perf_env__init(&perf_env); - perf_env__set_cmdline(&perf_env, argc, argv); status =3D p->fn(argc, argv); perf_config__exit(); exit_browser(status); - perf_env__exit(&perf_env); =20 if (status) return status & 0xff; diff --git a/tools/perf/util/bpf-event.c b/tools/perf/util/bpf-event.c index 664f361ef8c1..5b6d3e899e11 100644 --- a/tools/perf/util/bpf-event.c +++ b/tools/perf/util/bpf-event.c @@ -549,7 +549,7 @@ static int perf_event__synthesize_one_bpf_prog(struct p= erf_session *session, * for perf-record and perf-report use header.env; * otherwise, use global perf_env. */ - env =3D session->data ? perf_session__env(session) : &perf_env; + env =3D perf_session__env(session); =20 arrays =3D 1UL << PERF_BPIL_JITED_KSYMS; arrays |=3D 1UL << PERF_BPIL_JITED_FUNC_LENS; diff --git a/tools/perf/util/env.c b/tools/perf/util/env.c index 887a6fb7104e..6f1611eb4694 100644 --- a/tools/perf/util/env.c +++ b/tools/perf/util/env.c @@ -19,8 +19,6 @@ #include "strbuf.h" #include "trace/beauty/beauty.h" =20 -struct perf_env perf_env; - #ifdef HAVE_LIBBPF_SUPPORT #include "bpf-event.h" #include "bpf-utils.h" diff --git a/tools/perf/util/env.h b/tools/perf/util/env.h index c90c1d717e73..ce0ad14535a3 100644 --- a/tools/perf/util/env.h +++ b/tools/perf/util/env.h @@ -150,8 +150,6 @@ enum perf_compress_type { struct bpf_prog_info_node; struct btf_node; =20 -extern struct perf_env perf_env; - void perf_env__exit(struct perf_env *env); =20 int perf_env__kernel_is_64_bit(struct perf_env *env); diff --git a/tools/perf/util/evsel.c b/tools/perf/util/evsel.c index 24c93ea5ba0a..988fe5c4137a 100644 --- a/tools/perf/util/evsel.c +++ b/tools/perf/util/evsel.c @@ -3849,7 +3849,7 @@ struct perf_env *evsel__env(struct evsel *evsel) { struct perf_session *session =3D evsel__session(evsel); =20 - return session ? perf_session__env(session) : &perf_env; + return session ? perf_session__env(session) : NULL; } =20 static int store_evsel_ids(struct evsel *evsel, struct evlist *evlist) diff --git a/tools/perf/util/session.c b/tools/perf/util/session.c index 39da4ab768a5..df03743ac2bf 100644 --- a/tools/perf/util/session.c +++ b/tools/perf/util/session.c @@ -193,7 +193,8 @@ struct perf_session *__perf_session__new(struct perf_da= ta *data, symbol_conf.kallsyms_name =3D perf_data__kallsyms_name(data); } } else { - session->machines.host.env =3D host_env ?: &perf_env; + assert(host_env !=3D NULL); + session->machines.host.env =3D host_env; } if (session->evlist) session->evlist->session =3D session; --=20 2.50.0.727.gbf7dc18ff4-goog