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 6576DC432C1 for ; Wed, 25 Sep 2019 11:08:33 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 3521C2082F for ; Wed, 25 Sep 2019 11:08:33 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (2048-bit key) header.d=gmail.com header.i=@gmail.com header.b="DxbVT+no" Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S2404302AbfIYLId (ORCPT ); Wed, 25 Sep 2019 07:08:33 -0400 Received: from mail-wr1-f65.google.com ([209.85.221.65]:35659 "EHLO mail-wr1-f65.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S2404293AbfIYLIc (ORCPT ); Wed, 25 Sep 2019 07:08:32 -0400 Received: by mail-wr1-f65.google.com with SMTP id v8so6311031wrt.2 for ; Wed, 25 Sep 2019 04:08:30 -0700 (PDT) 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=Ivwn9SWap7yue6yaYYURYHF9bZLaU1Q++8aiwI7tmnk=; b=DxbVT+noXP3AkPaDwBBBOx0H7ergjuIxIb3dh2hm8I7MD1KolkPTvkYmqqcmity1wG Y1Jo4M/FCpQR87BMgFfp06yLLajKMFPSo8udB8NapZEs3E9KQ4C0ouNA+IPhwPDep65/ suzbm7CU4B0/rOqhWw61z8KaY8I7+yW1QK7/X8Jsb0GBkBAf2zaVnIDJihRKwkb0T307 vlQmQeIpNHa+duChuGPWRRXpqBdDoOiDShfK8SOcghoAVwIsg35YwHbVVVU7qZ+8/+xs PSikeBk/gYxKEnBActQJxHQkKcLCJRvwWcId+jEVKbAZ8tSrIWpY3n91ucm1rrJXfPZ+ 2+Lg== 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=Ivwn9SWap7yue6yaYYURYHF9bZLaU1Q++8aiwI7tmnk=; b=H9+VKVKEJzuEnEz6iRY0dnrsxDyUecLtDDBQ9HZdDiC8wtetZUlfaCRJtUWgvenvd3 A0lxsgwfnqdCywC5BRE33MO7lGfJ1ninEEfY/uoMye9FNqPKhXV9JIKuFpHV2b+uf5e7 47LoQhW+/R7QhcW3YoNoffjvekUGVB42vjD1QH4Yrgpp9D5xsslw1nBH1AYhH0uPw4QV acVRQFNMYkq90bDL+HoZ9S+8Xt5RhbRu37RF7IwEiLgBMNyVygQEIKI+Hxc90ZJt+6Ua ugG2fZxIoAsD0gz3A7e0ZFev6njlrJxNPIs032utSEXNxoHwPyNZEJT/dhJF36W5F0I7 m9Xw== X-Gm-Message-State: APjAAAWTMtV8p6VUcMeT3F7NXOrUjw+s/QPlKUkfh4XPk7GGWGvHe4+L hAWEo7W0mTgf5DT/YdvjZ+ySrxtL X-Google-Smtp-Source: APXvYqxBrFww2KRuWJUUcNLqQNubsAYeHcC7XGQ3lKLLUSgsFNrBfMChvQT9qTEgxg76faOAetKtng== X-Received: by 2002:a5d:4ac5:: with SMTP id y5mr4000123wrs.179.1569409709763; Wed, 25 Sep 2019 04:08:29 -0700 (PDT) Received: from oberon.eng.vmware.com ([146.247.46.5]) by smtp.gmail.com with ESMTPSA id t13sm12277619wra.70.2019.09.25.04.08.28 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Wed, 25 Sep 2019 04:08:28 -0700 (PDT) From: "Tzvetomir Stoyanov (VMware)" To: rostedt@goodmis.org Cc: linux-trace-devel@vger.kernel.org Subject: [PATCH 2/2] trace-cmd: Reset CPU mask to its default value with "trace-cmd reset". Date: Wed, 25 Sep 2019 14:08:23 +0300 Message-Id: <20190925110823.1242-3-tz.stoyanov@gmail.com> X-Mailer: git-send-email 2.21.0 In-Reply-To: <20190925110823.1242-1-tz.stoyanov@gmail.com> References: <20190925110823.1242-1-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 "trace-cmd reset" command should put all ftrace config to its default state, but trace cpumask was not reseted. The patch sets cpumask to its default value - all CPUs are enabled for tracing. Signed-off-by: Tzvetomir Stoyanov (VMware) --- tracecmd/trace-record.c | 19 +++++++++++++++++++ 1 file changed, 19 insertions(+) diff --git a/tracecmd/trace-record.c b/tracecmd/trace-record.c index 69de82a..c41f55f 100644 --- a/tracecmd/trace-record.c +++ b/tracecmd/trace-record.c @@ -4096,6 +4096,24 @@ static void reset_clock(void) write_instance_file(instance, "trace_clock", "local", "clock"); } +static void reset_cpu_mask(void) +{ + char str[24]; + int cpumask = 0; + int cpus = count_cpus(); + struct buffer_instance *instance; + + while (cpus--) { + cpumask <<= 1; + cpumask |= 1; + } + if (snprintf(str, 24, "%x", cpumask) <= 0) + return; + + for_all_instances(instance) + write_instance_file(instance, "tracing_cpumask", str, "cpumask"); +} + static void reset_event_pid(void) { add_event_pid(""); @@ -4808,6 +4826,7 @@ void trace_reset(int argc, char **argv) reset_clock(); reset_event_pid(); reset_max_latency_instance(); + reset_cpu_mask(); tracecmd_remove_instances(); clear_func_filters(); /* restore tracing_on to 1 */ -- 2.21.0