From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-9.8 required=3.0 tests=DKIM_SIGNED,DKIM_VALID, DKIM_VALID_AU,FREEMAIL_FORGED_FROMDOMAIN,FREEMAIL_FROM, HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_PATCH,MAILING_LIST_MULTI,SIGNED_OFF_BY, SPF_HELO_NONE,SPF_PASS,USER_AGENT_GIT autolearn=ham autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 7CC87C35E0C for ; Tue, 25 Feb 2020 18:07:46 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 4BE17206E6 for ; Tue, 25 Feb 2020 18:07:46 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (2048-bit key) header.d=gmail.com header.i=@gmail.com header.b="Ih5OHoFv" Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1731218AbgBYSHq (ORCPT ); Tue, 25 Feb 2020 13:07:46 -0500 Received: from mail-lj1-f193.google.com ([209.85.208.193]:45869 "EHLO mail-lj1-f193.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1728762AbgBYSHq (ORCPT ); Tue, 25 Feb 2020 13:07:46 -0500 Received: by mail-lj1-f193.google.com with SMTP id e18so15047334ljn.12 for ; Tue, 25 Feb 2020 10:07:44 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20161025; h=from:to:cc:subject:date:message-id:in-reply-to:references :mime-version:content-transfer-encoding; bh=nEM+hVojXF6GdSMPcp02Gfgl0+hzn7rNbm8hqWQjEtg=; b=Ih5OHoFvJyp6cgOQ/X4dI7U+O0tra3JIvz6WHuXksqYBOx6nDcMYO9fYdSyszzmflb A7+2bJyJoAY2ukjRPl9vk07UZ9kmVcMAJS/BjYzfFpTaAdSn+yYa8Pqs/NIDm4THxV4S +Zl2C65T2JrZVKExHzzBMZrN6fqnc4eiMxKFBsU5Jc+nI8KyTaJRaHcpUsVI9VeQDcaS ZzbkFVBluTogs3dHY31Dtd5gU9QU19yOifjmv0uEyJiKJ2IphBbwIe9o7ze4fB05mYQo wb3N6WxUhSL+LiruLpc5yEw+sIptVryWgmcH76PKwOXo7GViNKK/GI/cBRLLVhAkPOEh vbfw== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:from:to:cc:subject:date:message-id:in-reply-to :references:mime-version:content-transfer-encoding; bh=nEM+hVojXF6GdSMPcp02Gfgl0+hzn7rNbm8hqWQjEtg=; b=ArJ2z9KCeutFsndSG7IVSR7LZKOt76u35q1fTHAfWVauqDKmcQkh3VgG0AUOmrPPlq 7Qh/5Uy3GQPfgCH5T2BSN5v7h+h08Vr+pGiIRSCrbUPq38lNcugQX5P3/LArpWGP9Sw0 oZBhIZLVzdhQjwX/Xkz38Ln0gpOVfEeWGzg1R72dtKyFAw5rKllFhuTL4VCdhy+6c0zk myEPhL6DO/agx890G76YLYD7osGULMVOmijU4zDDW7MbKcgIyZ8PhYHCd3d38hiEvJ89 9NXT224X6/A3hTU193upsrshl/ZRkP1B/7B3CF20dTmiSjL2H3fAcH51o9yU4HQjHnwN yOCw== X-Gm-Message-State: ANhLgQ05jbDD1+5ACo2XXoU4DzA+lr5+DW16zkcyBYAsTyiBpW0EEIvI vt7irmr+FQo6bY7olDWIVQE= X-Google-Smtp-Source: APXvYqyFWxbFYwoGSPkZLXcSXpuvANK0p5USZ/g9abqe5kixVEpQqyY7XYQc/88LQk07nlM1dUyp0Q== X-Received: by 2002:a2e:a402:: with SMTP id p2mr163508ljn.143.1582654063717; Tue, 25 Feb 2020 10:07:43 -0800 (PST) Received: from oberon.zico.biz ([83.222.187.186]) by smtp.gmail.com with ESMTPSA id v15sm4141438lfg.51.2020.02.25.10.07.42 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Tue, 25 Feb 2020 10:07:43 -0800 (PST) From: "Tzvetomir Stoyanov (VMware)" To: rostedt@goodmis.org Cc: linux-trace-devel@vger.kernel.org Subject: [PATCH v4 4/4] trace-cmd: Clear error log on reset subcommand Date: Tue, 25 Feb 2020 20:07:33 +0200 Message-Id: <20200225180733.89344-5-tz.stoyanov@gmail.com> X-Mailer: git-send-email 2.24.1 In-Reply-To: <20200225180733.89344-1-tz.stoyanov@gmail.com> References: <20200225180733.89344-1-tz.stoyanov@gmail.com> MIME-Version: 1.0 Content-Transfer-Encoding: 8bit Sender: linux-trace-devel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-trace-devel@vger.kernel.org The "trace-cmd reset" command is supposed to set the ftrace state to default. However, the ftrace error logs are not reseted. A logic is added to delete the content of "error_log" file when "trace-cmd reset" is executed. Signed-off-by: Tzvetomir Stoyanov (VMware) --- tracecmd/trace-record.c | 23 +++++++++++++++++++++++ 1 file changed, 23 insertions(+) diff --git a/tracecmd/trace-record.c b/tracecmd/trace-record.c index 7c76ffa8..5c65a26f 100644 --- a/tracecmd/trace-record.c +++ b/tracecmd/trace-record.c @@ -4638,6 +4638,28 @@ static void clear_triggers(void) clear_instance_triggers(instance); } +static void clear_instance_error_log(struct buffer_instance *instance) +{ + char *file; + + if (!tracefs_file_exist(instance->tracefs, "error_log")) + return; + + file = tracefs_instance_get_file(instance->tracefs, "error_log"); + if (!file) + return; + write_file(file, " "); + tracefs_put_tracing_file(file); +} + +static void clear_error_log(void) +{ + struct buffer_instance *instance; + + for_all_instances(instance) + clear_instance_error_log(instance); +} + static void clear_all_synth_events(void) { char sevent[BUFSIZ]; @@ -5382,6 +5404,7 @@ void trace_reset(int argc, char **argv) clear_filters(); clear_triggers(); clear_all_synth_events(); + clear_error_log(); /* set clock to "local" */ reset_clock(); reset_event_pid(); -- 2.24.1