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=-8.2 required=3.0 tests=HEADER_FROM_DIFFERENT_DOMAINS, INCLUDES_PATCH,MAILING_LIST_MULTI,SIGNED_OFF_BY,SPF_HELO_NONE,SPF_PASS, USER_AGENT_SANE_1 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 B69FEC433E0 for ; Mon, 25 May 2020 14:23:12 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 8FA292071C for ; Mon, 25 May 2020 14:23:12 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S2403983AbgEYOXL (ORCPT ); Mon, 25 May 2020 10:23:11 -0400 Received: from mga05.intel.com ([192.55.52.43]:46655 "EHLO mga05.intel.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S2403968AbgEYOXJ (ORCPT ); Mon, 25 May 2020 10:23:09 -0400 IronPort-SDR: dOZ2r4ip5fYrWWUr07pD81MO+vKgFfhQ9pslAd9xjiXLrO2r1WItXpGBX85GRxSGPTNooyBpbN ZTWb+Pz6jVHg== X-Amp-Result: SKIPPED(no attachment in message) X-Amp-File-Uploaded: False Received: from orsmga005.jf.intel.com ([10.7.209.41]) by fmsmga105.fm.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 25 May 2020 07:23:07 -0700 IronPort-SDR: CiyCL70qIehdpzsAeNpC5I0Mrs8zvoafG8AiGtMU9s0QGajGtjgoibzJSJjODWTqnW74vbIUS4 Gq+pi/Imh22A== X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="5.73,433,1583222400"; d="scan'208";a="441746220" Received: from linux.intel.com ([10.54.29.200]) by orsmga005.jf.intel.com with ESMTP; 25 May 2020 07:23:08 -0700 Received: from [10.249.227.191] (abudanko-mobl.ccr.corp.intel.com [10.249.227.191]) by linux.intel.com (Postfix) with ESMTP id 25A7558056A; Mon, 25 May 2020 07:23:05 -0700 (PDT) Subject: [PATCH v4 09/10] perf record: implement control commands handling From: Alexey Budankov To: Arnaldo Carvalho de Melo Cc: Jiri Olsa , Namhyung Kim , Alexander Shishkin , Peter Zijlstra , Ingo Molnar , Andi Kleen , linux-kernel References: <653fe5f3-c986-a841-1ed8-0a7d2fa24c00@linux.intel.com> Organization: Intel Corp. Message-ID: Date: Mon, 25 May 2020 17:23:04 +0300 User-Agent: Mozilla/5.0 (Windows NT 10.0; WOW64; rv:68.0) Gecko/20100101 Thunderbird/68.8.0 MIME-Version: 1.0 In-Reply-To: <653fe5f3-c986-a841-1ed8-0a7d2fa24c00@linux.intel.com> Content-Type: text/plain; charset=utf-8 Content-Language: en-US Content-Transfer-Encoding: 7bit Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Implement handling of 'enable' and 'disable' control commands coming from control file descriptor. Signed-off-by: Alexey Budankov --- tools/perf/builtin-record.c | 16 ++++++++++++++++ 1 file changed, 16 insertions(+) diff --git a/tools/perf/builtin-record.c b/tools/perf/builtin-record.c index 8c3ec29e7e80..1ff3b7a77283 100644 --- a/tools/perf/builtin-record.c +++ b/tools/perf/builtin-record.c @@ -1526,6 +1526,7 @@ static int __cmd_record(struct record *rec, int argc, const char **argv) bool disabled = false, draining = false; int fd; float ratio = 0; + enum evlist_ctl_cmd cmd = EVLIST_CTL_CMD_UNSUPPORTED; atexit(record__sig_exit); signal(SIGCHLD, sig_handler); @@ -1842,6 +1843,21 @@ static int __cmd_record(struct record *rec, int argc, const char **argv) alarm(rec->switch_output.time); } + if (evlist__ctlfd_process(rec->evlist, &cmd) > 0) { + switch (cmd) { + case EVLIST_CTL_CMD_ENABLE: + pr_info(EVLIST_ENABLED_MSG); + break; + case EVLIST_CTL_CMD_DISABLE: + pr_info(EVLIST_DISABLED_MSG); + break; + case EVLIST_CTL_CMD_ACK: + case EVLIST_CTL_CMD_UNSUPPORTED: + default: + break; + } + } + if (hits == rec->samples) { if (done || draining) break; -- 2.24.1