From nobody Fri Apr 10 14:22:35 2026 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id A8AD1ECAAA1 for ; Fri, 16 Sep 2022 17:59:53 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S229959AbiIPR7u (ORCPT ); Fri, 16 Sep 2022 13:59:50 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:33448 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S229898AbiIPR7M (ORCPT ); Fri, 16 Sep 2022 13:59:12 -0400 Received: from mail-pl1-x629.google.com (mail-pl1-x629.google.com [IPv6:2607:f8b0:4864:20::629]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id A92ACB6D0C; Fri, 16 Sep 2022 10:59:10 -0700 (PDT) Received: by mail-pl1-x629.google.com with SMTP id f23so5892772plr.6; Fri, 16 Sep 2022 10:59:10 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20210112; h=content-transfer-encoding:mime-version:references:in-reply-to :message-id:date:subject:cc:to:from:sender:from:to:cc:subject:date; bh=cUos+vcM9RRP8jutVG/rSrtmvF3gBZ9cbF4X9vnuVXA=; b=mDL1f6wdW3HYPP3qHIuExoLh4wMpLe1oSX6/1SvYT298q6552lcJjjzEr9HiBBdb0s cgy3JkLLgigeVlyz7a565GqGJU4+06YddMU0R9rGvC2XEyTKSt3XJ+NgsoTwgrnI6DXz /c+25Lu3WHlsouJUahvrr3lgOkbkNTI3du/KkuA+TxB3tRfZA/PIF/Bi2WCumkJz0LUZ Q2HnZEOW2+suQgvGOoaHgmQEsboC4p8/LXq38ozCn/fFVj8xjVgKxC3SiQ5cuFBtXfxX Gor3O6b5JJqU3oydXwVzqfJ6xaA/foC1nGZ9v2SygXkGegPGXKLkvTKNf9KyrjlrpfKK KGwQ== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20210112; h=content-transfer-encoding:mime-version:references:in-reply-to :message-id:date:subject:cc:to:from:sender:x-gm-message-state:from :to:cc:subject:date; bh=cUos+vcM9RRP8jutVG/rSrtmvF3gBZ9cbF4X9vnuVXA=; b=GUKK6puyEfXbQht1Q+DAhEpRtKoxvCycalOnKtKTdkDa8bvqfLpVsAGwDi1Q/81E+F yIwQPT0vENbW8rNsmOeGocvejikQnj6jL09cQo93Ns6AyRKkBrgLcBaGqSUkfMKjfTGS j90tzr1IaDttMMxcgue+V+bpqL8r3L/6oplGIj6/ulAf1k3UFjNCHexsvx+pfkB3htfY lEKR0G+Tdt3p4k7yakKzDxF47FDb9wiT4vIIsppxQj/26ICv+SQb/x/wkeKTwesNL5g+ 7h91gGh0sJfHz2ckwDyeuk3jMtvU5pGwJ9crxmfZl5cLB1SU8kceeSK2X8OkwhAflSz5 eruA== X-Gm-Message-State: ACrzQf0G4qwYXSB2/ZSW4B+Gze2EAh5WSJaFlbTiS7FHAWompsdGshO+ VM9DJMmsgzqwen12b785/Aw= X-Google-Smtp-Source: AMsMyM7hhgcaLiNuABgMK+AUqf9lco8WK6JwmsakaTsF1Zw+04inBwzNO8HhdjxkPC8tBuo576bBPg== X-Received: by 2002:a17:90b:38ca:b0:202:fb75:7dc3 with SMTP id nn10-20020a17090b38ca00b00202fb757dc3mr17663941pjb.192.1663351149748; Fri, 16 Sep 2022 10:59:09 -0700 (PDT) Received: from youngsil.svl.corp.google.com ([2620:15c:2d4:203:2952:dee7:a35e:6428]) by smtp.gmail.com with ESMTPSA id jo21-20020a170903055500b001767f6f04efsm15059458plb.242.2022.09.16.10.59.08 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Fri, 16 Sep 2022 10:59:09 -0700 (PDT) Sender: Namhyung Kim From: Namhyung Kim To: Arnaldo Carvalho de Melo , Jiri Olsa Cc: Ingo Molnar , Peter Zijlstra , LKML , Ian Rogers , Adrian Hunter , linux-perf-users@vger.kernel.org Subject: [PATCH 4/4] perf tools: Honor namespace when synthesizing build-id Date: Fri, 16 Sep 2022 10:59:02 -0700 Message-Id: <20220916175902.1155177-5-namhyung@kernel.org> X-Mailer: git-send-email 2.37.3.968.ga6b4b080e4-goog In-Reply-To: <20220916175902.1155177-1-namhyung@kernel.org> References: <20220916175902.1155177-1-namhyung@kernel.org> MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Type: text/plain; charset="utf-8" It needs to go into a namespace before reading a file. Signed-off-by: Namhyung Kim --- tools/perf/util/synthetic-events.c | 8 ++++++++ 1 file changed, 8 insertions(+) diff --git a/tools/perf/util/synthetic-events.c b/tools/perf/util/synthetic= -events.c index e6978b2dee8f..d0d540d09196 100644 --- a/tools/perf/util/synthetic-events.c +++ b/tools/perf/util/synthetic-events.c @@ -391,6 +391,8 @@ static void perf_record_mmap2__read_build_id(struct per= f_record_mmap2 *event, struct build_id _bid, *bid =3D &_bid; struct dso *dso =3D NULL; struct dso_id id; + struct nsinfo *nsi; + struct nscookie nc; int rc; =20 if (is_kernel) { @@ -410,8 +412,14 @@ static void perf_record_mmap2__read_build_id(struct pe= rf_record_mmap2 *event, goto out; } =20 + nsi =3D nsinfo__new(event->pid); + nsinfo__mountns_enter(nsi, &nc); + rc =3D filename__read_build_id(event->filename, bid) > 0 ? 0 : -1; =20 + nsinfo__mountns_exit(&nc); + nsinfo__put(nsi); + out: if (rc =3D=3D 0) { memcpy(event->build_id, bid->data, sizeof(bid->data)); --=20 2.37.3.968.ga6b4b080e4-goog