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 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 77A23C4332F for ; Fri, 8 Oct 2021 04:20:17 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 60F61610CE for ; Fri, 8 Oct 2021 04:20:17 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S237403AbhJHEWL (ORCPT ); Fri, 8 Oct 2021 00:22:11 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:49828 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S237470AbhJHEWJ (ORCPT ); Fri, 8 Oct 2021 00:22:09 -0400 Received: from mail-ed1-x533.google.com (mail-ed1-x533.google.com [IPv6:2a00:1450:4864:20::533]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 69ED9C061755 for ; Thu, 7 Oct 2021 21:20:14 -0700 (PDT) Received: by mail-ed1-x533.google.com with SMTP id r18so31282184edv.12 for ; Thu, 07 Oct 2021 21:20:14 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20210112; h=from:to:cc:subject:date:message-id:in-reply-to:references :mime-version:content-transfer-encoding; bh=3gvUNdS2tSOAtgwBR3qg1qW8J0dzWb8S/4v45esPWUk=; b=TIOZApjEBzr2RnsIRf+T69BdUYq+uO9L2vbD+U2mcEmnLyg4dAjBepyDrgKrB3E03F jWUekBn8mff25eeSrtsD/nEjwA8y1484jh9Pck8F3vvztVKDp8xCmXLN15F/4Ecb8SKv jvW3/VF3Z0kox5erTVcJ1rBZDVDrTz3yS1XUhxGP4+f1fvz1enxyufgATnMet24aQx7+ HNcYyNUUBxi3WHPw8PPhYDH4u3SUmG9z8bHMdNQHpFRQ3GZbRybuHth5XNlh068SGfn1 Xg/prx2pzum4SG6Xs5lwCdf7V2xoeeI+H9ySNTYpNp/VSg04EkNG1wJCGP7RP+MeXsW7 b2Wg== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20210112; h=x-gm-message-state:from:to:cc:subject:date:message-id:in-reply-to :references:mime-version:content-transfer-encoding; bh=3gvUNdS2tSOAtgwBR3qg1qW8J0dzWb8S/4v45esPWUk=; b=SHn87bL7K2YOFgf2YR72uRGw0UYZEnHixwGhsnb/mLw65bWSZskfZ4ovBHbuycfWV5 pvBPVeTP/5P4KvNXCOzpZ7COrt0VSNaXs4YkJPEdcFZWAKbX2ksnMJUAHmhvkYftH2ga ejCmhVW6t1wL8k9U/zyN9jXcEoqPd68VMzcwR3R8WD3Jgy+9LlhafvgKWZXZ3zR0aN9q 3/6zt8PmXdAtdPLw6PoK2vj7/0tTBl70Q1JJPJZAUCbPUJuO8V1eJ/8qesVhgaS3v090 01tpakHUqvXgbwMX8znoxOi96HYHGCwG7vWWpFWFPyFcBfZHAG7tvSSMCCGKLOnPZQ3T 323Q== X-Gm-Message-State: AOAM533lfvr7n66AjzraP5iFLlpjJPC1vL9e0lA27TQGkkAQC930Gkr7 v3HZxoqC6NE9qB9Cbx+GQGoztJ9R+qS8Xw== X-Google-Smtp-Source: ABdhPJzOQro0LU5ICezRZaLEuSDzvvHb9CADkOvw+ln0z356wIoFQWD8UFnRpJ0LQmPdv4WCsu/MaA== X-Received: by 2002:a05:6402:2756:: with SMTP id z22mr11914906edd.264.1633666813081; Thu, 07 Oct 2021 21:20:13 -0700 (PDT) Received: from oberon.zico.biz ([83.222.187.186]) by smtp.gmail.com with ESMTPSA id p6sm511669edi.18.2021.10.07.21.20.12 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Thu, 07 Oct 2021 21:20:12 -0700 (PDT) From: "Tzvetomir Stoyanov (VMware)" To: rostedt@goodmis.org Cc: linux-trace-devel@vger.kernel.org Subject: [PATCH v4 12/25] trace-cmd library: Do not write CPUs with empty trace data Date: Fri, 8 Oct 2021 07:19:45 +0300 Message-Id: <20211008041958.976309-13-tz.stoyanov@gmail.com> X-Mailer: git-send-email 2.31.1 In-Reply-To: <20211008041958.976309-1-tz.stoyanov@gmail.com> References: <20211008041958.976309-1-tz.stoyanov@gmail.com> MIME-Version: 1.0 Content-Transfer-Encoding: 8bit Precedence: bulk List-ID: X-Mailing-List: linux-trace-devel@vger.kernel.org Trace file version 7 has more flexible design, which allows to write only CPUs with trace data in the file. If a CPU has no recorded trace data, do not put it in the trace file version 7. Signed-off-by: Tzvetomir Stoyanov (VMware) --- lib/trace-cmd/trace-output.c | 4 +++- 1 file changed, 3 insertions(+), 1 deletion(-) diff --git a/lib/trace-cmd/trace-output.c b/lib/trace-cmd/trace-output.c index ebe5b179..ffcc62e1 100644 --- a/lib/trace-cmd/trace-output.c +++ b/lib/trace-cmd/trace-output.c @@ -2076,8 +2076,10 @@ int tracecmd_write_cpu_data(struct tracecmd_output *handle, if (i < cpus) ret = -1; - else + else if (size || !HAS_SECTIONS(handle)) ret = out_write_cpu_data(handle, cpus, data, buff_name); + else + ret = 0; for (i--; i >= 0; i--) close(data[i].fd); -- 2.31.1