From patchwork Tue Oct 1 14:57:39 2019 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: "Tzvetomir Stoyanov (VMware)" X-Patchwork-Id: 11169003 Return-Path: Received: from mail.kernel.org (pdx-korg-mail-1.web.codeaurora.org [172.30.200.123]) by pdx-korg-patchwork-2.web.codeaurora.org (Postfix) with ESMTP id 2F56D14DB for ; Tue, 1 Oct 2019 14:57:47 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 0D154215EA for ; Tue, 1 Oct 2019 14:57:47 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (2048-bit key) header.d=gmail.com header.i=@gmail.com header.b="XxdUSEPl" Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S2389555AbfJAO5q (ORCPT ); Tue, 1 Oct 2019 10:57:46 -0400 Received: from mail-wr1-f66.google.com ([209.85.221.66]:39948 "EHLO mail-wr1-f66.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1727194AbfJAO5q (ORCPT ); Tue, 1 Oct 2019 10:57:46 -0400 Received: by mail-wr1-f66.google.com with SMTP id l3so15922085wru.7 for ; Tue, 01 Oct 2019 07:57:45 -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=cZ/aOnWwCD89QYkOIYb9nBbkD7csPYkLem8bSGqJdRg=; b=XxdUSEPltDuJ8YG4zS7r2n5RLT0V3fJdR69XqGilHIFOZPL25WvwEeVD5yut7LXnCH N2ZColGE3mn45UDSoCboz9LuMwnY0lQltr5xz8zq1u66dROJneYEvHhRbw8dhq7ceJ+a XQy4plzoLxSjZ97QhfGTM8WGqk2AgwGcHISahDyBjE2HOffkucWSko68NUELSCHtqugp 0tzrk7Q6m4D9RNJrxGjwsmhLv9VfAdSbqFmsSPCaSDII35toUEN2JzUd0liqKYkEFsmn R507z4gZ4aK0MJMOSjIwyBYT60RHo9sCDFdxVtkR2Opi5OjsZ6lfMzLBoGxQQO2I0Qus 6C0g== 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=cZ/aOnWwCD89QYkOIYb9nBbkD7csPYkLem8bSGqJdRg=; b=afmDldo/CnwdhASQFhILTf/5oHI6NxIV8DWDYN5ByBk41eoM8nMsxP7gUI6MdlECnD /YFK+Exz9RzUlTyU37R3p0xnirvsXru5883TWwuIYg0uztEh3IqXRZw44cSH//hP8n4p SXVb+6rKSw1yR9u4120qd6ozpmPFJi2+flw+doOTUYx4y4aQVWvNA3kuy7YFIsop80gT dSHJZKvDr1WRxDL189XUp6z//HP13qWR9Va0UbbSAFQYhIkrhznNpg5rRXIpJfJ4A+7r CqnHhuRHoF5QZfUP88A2zhykR75vYbzu+ZcMnT3G+slbJTTRsJiNAGR3fmfAgEe8PUFQ KB4w== X-Gm-Message-State: APjAAAWG90+0aocDAaneEtpLYRTKlxepYdH1Iz0ErjuRgfTntRAdSgiK /bU8mt9vBf8iVXp4K3JkvffUqp/J X-Google-Smtp-Source: APXvYqz9RtLN1U3z8HJFomLXPAhIejRGPFeJ9rGIF8YUafs9/RKTlsWGsAmKZ10HjmCRM/DHQ1/1PA== X-Received: by 2002:adf:f008:: with SMTP id j8mr1147005wro.75.1569941864813; Tue, 01 Oct 2019 07:57:44 -0700 (PDT) Received: from oberon.eng.vmware.com ([146.247.46.5]) by smtp.gmail.com with ESMTPSA id f13sm3220758wmj.17.2019.10.01.07.57.43 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Tue, 01 Oct 2019 07:57:44 -0700 (PDT) From: "Tzvetomir Stoyanov (VMware)" To: rostedt@goodmis.org Cc: linux-trace-devel@vger.kernel.org Subject: [PATCH v2 1/2] trace-cmd: Reset CPU mask after setting it in trace-cmd record with option -M Date: Tue, 1 Oct 2019 17:57:39 +0300 Message-Id: <20191001145740.8866-2-tz.stoyanov@gmail.com> X-Mailer: git-send-email 2.21.0 In-Reply-To: <20191001145740.8866-1-tz.stoyanov@gmail.com> References: <20191001145740.8866-1-tz.stoyanov@gmail.com> MIME-Version: 1.0 Sender: linux-trace-devel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-trace-devel@vger.kernel.org When trace-cmd is run with option -M, to set the tracing cpumask, it was not reset to its previous state. The trace-cmd record should put back the original value after using -M for the tracing cpu masks. Fixes https://bugzilla.kernel.org/show_bug.cgi?id=204941 Reported-by: Steven Rostedt (VMware) Signed-off-by: Tzvetomir Stoyanov (VMware) --- tracecmd/trace-record.c | 1 + 1 file changed, 1 insertion(+) diff --git a/tracecmd/trace-record.c b/tracecmd/trace-record.c index 96d2c1a..69de82a 100644 --- a/tracecmd/trace-record.c +++ b/tracecmd/trace-record.c @@ -2403,6 +2403,7 @@ static void set_mask(struct buffer_instance *instance) path = get_instance_file(instance, "tracing_cpumask"); if (!path) die("could not allocate path"); + reset_save_file(path, RESET_DEFAULT_PRIO); ret = stat(path, &st); if (ret < 0) {