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=-12.8 required=3.0 tests=BAYES_00,DKIM_INVALID, DKIM_SIGNED,HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_PATCH,MAILING_LIST_MULTI, SIGNED_OFF_BY,SPF_HELO_NONE,SPF_PASS,URIBL_BLOCKED,USER_AGENT_GIT autolearn=unavailable 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 AFA0DC433E1 for ; Mon, 20 Jul 2020 02:21:59 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 83C382177B for ; Mon, 20 Jul 2020 02:21:59 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=fail reason="signature verification failed" (1024-bit key) header.d=mg.codeaurora.org header.i=@mg.codeaurora.org header.b="ZFc9bSkX" Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1727091AbgGTCV6 (ORCPT ); Sun, 19 Jul 2020 22:21:58 -0400 Received: from m43-7.mailgun.net ([69.72.43.7]:43015 "EHLO m43-7.mailgun.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1726998AbgGTCV5 (ORCPT ); Sun, 19 Jul 2020 22:21:57 -0400 DKIM-Signature: a=rsa-sha256; v=1; c=relaxed/relaxed; d=mg.codeaurora.org; q=dns/txt; s=smtp; t=1595211716; h=Content-Transfer-Encoding: MIME-Version: References: In-Reply-To: Message-Id: Date: Subject: Cc: To: From: Sender; bh=ykR2SdK1gJAE3c2jaq1OoL9b+HU9D1OPmYDpnLWtngY=; b=ZFc9bSkXNWs21Vz/MRZGo/T1zk87ouPs3pGZl9hSIRQREqT/s1S5lErQQiMtYiYkfFNaXp4L 9L8zE9rK2wgBNnEWFyy6E/Q8CA9k2VyU259xuFjJUiG0GSisnkw7s06nrYly1fSc8V4oeEJ8 gcGUyIhHe0eHcmTlIV61FbIFsbs= X-Mailgun-Sending-Ip: 69.72.43.7 X-Mailgun-Sid: WyI0MWYwYSIsICJsaW51eC1rZXJuZWxAdmdlci5rZXJuZWwub3JnIiwgImJlOWU0YSJd Received: from smtp.codeaurora.org (ec2-35-166-182-171.us-west-2.compute.amazonaws.com [35.166.182.171]) by smtp-out-n04.prod.us-west-2.postgun.com with SMTP id 5f14ffb3c9bd2efa2e36e960 (version=TLS1.2, cipher=TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256); Mon, 20 Jul 2020 02:21:39 GMT Received: by smtp.codeaurora.org (Postfix, from userid 1001) id 8E521C433CA; Mon, 20 Jul 2020 02:21:39 +0000 (UTC) Received: from tingweiz-gv.qualcomm.com (unknown [180.166.53.21]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-SHA256 (128/128 bits)) (No client certificate requested) (Authenticated sender: tingwei) by smtp.codeaurora.org (Postfix) with ESMTPSA id C8A56C433C6; Mon, 20 Jul 2020 02:21:37 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 smtp.codeaurora.org C8A56C433C6 Authentication-Results: aws-us-west-2-caf-mail-1.web.codeaurora.org; dmarc=none (p=none dis=none) header.from=codeaurora.org Authentication-Results: aws-us-west-2-caf-mail-1.web.codeaurora.org; spf=none smtp.mailfrom=tingwei@codeaurora.org From: Tingwei Zhang To: Steven Rostedt , Ingo Molnar Cc: Tingwei Zhang , tsoni@codeaurora.org, Sai Prakash Ranjan , Mao Jinlong , linux-kernel@vger.kernel.org Subject: [PATCH 3/4] tracing: add trace_export support for trace_marker Date: Mon, 20 Jul 2020 10:21:16 +0800 Message-Id: <20200720022117.9375-4-tingwei@codeaurora.org> X-Mailer: git-send-email 2.20.0 In-Reply-To: <20200720022117.9375-1-tingwei@codeaurora.org> References: <20200720022117.9375-1-tingwei@codeaurora.org> MIME-Version: 1.0 Content-Transfer-Encoding: 8bit Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Add the support to route trace_marker buffer to other destination via trace_export. Signed-off-by: Tingwei Zhang --- kernel/trace/trace.c | 2 ++ 1 file changed, 2 insertions(+) diff --git a/kernel/trace/trace.c b/kernel/trace/trace.c index aef6330836e2..ac18e0ee9246 100644 --- a/kernel/trace/trace.c +++ b/kernel/trace/trace.c @@ -6639,6 +6639,8 @@ tracing_mark_write(struct file *filp, const char __user *ubuf, } else entry->buf[cnt] = '\0'; + if (static_branch_unlikely(&ftrace_exports_enabled)) + ftrace_exports(event); __buffer_unlock_commit(buffer, event); if (tt) -- The Qualcomm Innovation Center, Inc. is a member of the Code Aurora Forum, a Linux Foundation Collaborative Project