From patchwork Wed Feb 15 22:33:46 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Ross Zwisler X-Patchwork-Id: 653841 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 A2D79C677F1 for ; Wed, 15 Feb 2023 22:34:04 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S229809AbjBOWeD (ORCPT ); Wed, 15 Feb 2023 17:34:03 -0500 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:36854 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S229812AbjBOWeB (ORCPT ); Wed, 15 Feb 2023 17:34:01 -0500 Received: from mail-il1-x12b.google.com (mail-il1-x12b.google.com [IPv6:2607:f8b0:4864:20::12b]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id E5D043608F for ; Wed, 15 Feb 2023 14:33:59 -0800 (PST) Received: by mail-il1-x12b.google.com with SMTP id i6so170395ilk.5 for ; Wed, 15 Feb 2023 14:33:59 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=chromium.org; s=google; h=content-transfer-encoding:mime-version:references:in-reply-to :message-id:date:subject:cc:to:from:from:to:cc:subject:date :message-id:reply-to; bh=lP7i4Vg5vCi45+1jZsWESpRSmXH35ZniV9m1/+tW+Hk=; b=nkZL9fJ4DuIlF/CtEtVuUWG1NHpyIExHBSMUpvG++W5Ao+0jTazceFPQ+qafDgTzZN P+qX432q5PjnU01ridwbkLLkiU0rTtSZdXZEQd/FetfZiE1KzwwCeQCqOizI8U6m/CdR qCDN90d6J3zjeKTJ5KEfh+qukVjCgjja+cIZM= 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:x-gm-message-state:from:to:cc :subject:date:message-id:reply-to; bh=lP7i4Vg5vCi45+1jZsWESpRSmXH35ZniV9m1/+tW+Hk=; b=fHdPwumIjuQ7yOzpJLrRUkVkzU3kfmZ5n0ZRreBNsDDrVjyAXLHklAYdawLjJfNn8r ucF83KO3I3fq8us7zTKO/bI3qXPUkzIadPKe+fy0NmlyvWI8SWdl42Kro6iWVzZFMRGp ilnG81IQRCY821zg3eVOiMVoX/DOOqktcEqhkBy8uU2iWCwG1ZGhnP8dRTbqUNWdyQ2e wGXkLEeJyCPep8APKXMdnDj5OTXGTULiJQ1G5FTWigUiJMAwfbkW3/iSsisGxofdbMFF T4KXZHyl6ZININejXVAQjnRiA5ICJzczqgXU6siBiegU8I2Ytl4a8/+wyln2UeTKYd1m 442g== X-Gm-Message-State: AO0yUKXHU/8Mcodv9tHRO1gUD2K6oPT34UmFz7k8xrZ1E/btGFLYEY0P 0Fn7sWbbhj2R/tJ38kz0sUjm6g== X-Google-Smtp-Source: AK7set/iT57WkSxfAxsAOUoPZU2et6o/KodiZpe6LUgEgddn6Z+TYNMWbr3f09Z6/v0pnuZZ8Xenpg== X-Received: by 2002:a05:6e02:1d91:b0:315:7004:3e6c with SMTP id h17-20020a056e021d9100b0031570043e6cmr3354878ila.23.1676500439322; Wed, 15 Feb 2023 14:33:59 -0800 (PST) Received: from ravnica.bld.corp.google.com ([2620:15c:183:200:6299:179b:a6e4:be59]) by smtp.gmail.com with ESMTPSA id b15-20020a92c14f000000b003141eddd283sm1131489ilh.22.2023.02.15.14.33.58 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Wed, 15 Feb 2023 14:33:59 -0800 (PST) From: Ross Zwisler X-Google-Original-From: Ross Zwisler To: linux-kernel@vger.kernel.org Cc: Ross Zwisler , Shuah Khan , Andrew Morton , linux-kselftest@vger.kernel.org, linux-mm@kvack.org, linux-trace-kernel@vger.kernel.org, Steven Rostedt Subject: [PATCH v2 2/6] selftests: use canonical ftrace path Date: Wed, 15 Feb 2023 15:33:46 -0700 Message-Id: <20230215223350.2658616-3-zwisler@google.com> X-Mailer: git-send-email 2.39.1.637.g21b0678d19-goog In-Reply-To: <20230215223350.2658616-1-zwisler@google.com> References: <20230215223350.2658616-1-zwisler@google.com> MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: linux-kselftest@vger.kernel.org The canonical location for the tracefs filesystem is at /sys/kernel/tracing. But, from Documentation/trace/ftrace.rst: Before 4.1, all ftrace tracing control files were within the debugfs file system, which is typically located at /sys/kernel/debug/tracing. For backward compatibility, when mounting the debugfs file system, the tracefs file system will be automatically mounted at: /sys/kernel/debug/tracing A few spots in tools/testing/selftests still refer to this older debugfs path, so let's update them to avoid confusion. Signed-off-by: Ross Zwisler Reviewed-by: Steven Rostedt (Google) Reviewed-by: Mukesh Ojha --- tools/testing/selftests/user_events/dyn_test.c | 2 +- tools/testing/selftests/user_events/ftrace_test.c | 10 +++++----- tools/testing/selftests/user_events/perf_test.c | 8 ++++---- tools/testing/selftests/vm/protection_keys.c | 4 ++-- 4 files changed, 12 insertions(+), 12 deletions(-) diff --git a/tools/testing/selftests/user_events/dyn_test.c b/tools/testing/selftests/user_events/dyn_test.c index d6265d14cd51..8879a7b04c6a 100644 --- a/tools/testing/selftests/user_events/dyn_test.c +++ b/tools/testing/selftests/user_events/dyn_test.c @@ -16,7 +16,7 @@ #include "../kselftest_harness.h" -const char *dyn_file = "/sys/kernel/debug/tracing/dynamic_events"; +const char *dyn_file = "/sys/kernel/tracing/dynamic_events"; const char *clear = "!u:__test_event"; static int Append(const char *value) diff --git a/tools/testing/selftests/user_events/ftrace_test.c b/tools/testing/selftests/user_events/ftrace_test.c index 404a2713dcae..a0b2c96eb252 100644 --- a/tools/testing/selftests/user_events/ftrace_test.c +++ b/tools/testing/selftests/user_events/ftrace_test.c @@ -16,11 +16,11 @@ #include "../kselftest_harness.h" -const char *data_file = "/sys/kernel/debug/tracing/user_events_data"; -const char *status_file = "/sys/kernel/debug/tracing/user_events_status"; -const char *enable_file = "/sys/kernel/debug/tracing/events/user_events/__test_event/enable"; -const char *trace_file = "/sys/kernel/debug/tracing/trace"; -const char *fmt_file = "/sys/kernel/debug/tracing/events/user_events/__test_event/format"; +const char *data_file = "/sys/kernel/tracing/user_events_data"; +const char *status_file = "/sys/kernel/tracing/user_events_status"; +const char *enable_file = "/sys/kernel/tracing/events/user_events/__test_event/enable"; +const char *trace_file = "/sys/kernel/tracing/trace"; +const char *fmt_file = "/sys/kernel/tracing/events/user_events/__test_event/format"; static inline int status_check(char *status_page, int status_bit) { diff --git a/tools/testing/selftests/user_events/perf_test.c b/tools/testing/selftests/user_events/perf_test.c index 8b4c7879d5a7..31505642aa9b 100644 --- a/tools/testing/selftests/user_events/perf_test.c +++ b/tools/testing/selftests/user_events/perf_test.c @@ -18,10 +18,10 @@ #include "../kselftest_harness.h" -const char *data_file = "/sys/kernel/debug/tracing/user_events_data"; -const char *status_file = "/sys/kernel/debug/tracing/user_events_status"; -const char *id_file = "/sys/kernel/debug/tracing/events/user_events/__test_event/id"; -const char *fmt_file = "/sys/kernel/debug/tracing/events/user_events/__test_event/format"; +const char *data_file = "/sys/kernel/tracing/user_events_data"; +const char *status_file = "/sys/kernel/tracing/user_events_status"; +const char *id_file = "/sys/kernel/tracing/events/user_events/__test_event/id"; +const char *fmt_file = "/sys/kernel/tracing/events/user_events/__test_event/format"; struct event { __u32 index; diff --git a/tools/testing/selftests/vm/protection_keys.c b/tools/testing/selftests/vm/protection_keys.c index 95f403a0c46d..0381c34fdd56 100644 --- a/tools/testing/selftests/vm/protection_keys.c +++ b/tools/testing/selftests/vm/protection_keys.c @@ -98,7 +98,7 @@ int tracing_root_ok(void) void tracing_on(void) { #if CONTROL_TRACING > 0 -#define TRACEDIR "/sys/kernel/debug/tracing" +#define TRACEDIR "/sys/kernel/tracing" char pidstr[32]; if (!tracing_root_ok()) @@ -124,7 +124,7 @@ void tracing_off(void) #if CONTROL_TRACING > 0 if (!tracing_root_ok()) return; - cat_into_file("0", "/sys/kernel/debug/tracing/tracing_on"); + cat_into_file("0", "/sys/kernel/tracing/tracing_on"); #endif }