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=-8.3 required=3.0 tests=HEADER_FROM_DIFFERENT_DOMAINS, INCLUDES_PATCH,MAILING_LIST_MULTI,SIGNED_OFF_BY,SPF_HELO_NONE,SPF_PASS, URIBL_BLOCKED,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 31637C433E0 for ; Mon, 1 Jun 2020 20:19:44 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 1A9C72074B for ; Mon, 1 Jun 2020 20:19:44 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1728600AbgFAUTn (ORCPT ); Mon, 1 Jun 2020 16:19:43 -0400 Received: from mga17.intel.com ([192.55.52.151]:5984 "EHLO mga17.intel.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1728167AbgFAUTm (ORCPT ); Mon, 1 Jun 2020 16:19:42 -0400 IronPort-SDR: 3HJUq6djVQskMHb9oQ39g36mr0y3UP5xvNyaoBsqXav1+11GT0g6c2lWHiot/7zlXLC9Mpb1v4 XVcWgmUIWkEA== X-Amp-Result: SKIPPED(no attachment in message) X-Amp-File-Uploaded: False Received: from orsmga002.jf.intel.com ([10.7.209.21]) by fmsmga107.fm.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 01 Jun 2020 13:19:42 -0700 IronPort-SDR: a8YMb+FJ9tPSjLYmd5K79DoorFtWuCmkFWZLLaYdKvN0U7qScfq1UZDdD52EdMxsiFY7xB+NXW 62Cyk6HEZO9g== X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="5.73,462,1583222400"; d="scan'208";a="286391443" Received: from linux.intel.com ([10.54.29.200]) by orsmga002.jf.intel.com with ESMTP; 01 Jun 2020 13:19:42 -0700 Received: from [10.249.230.65] (abudanko-mobl.ccr.corp.intel.com [10.249.230.65]) by linux.intel.com (Postfix) with ESMTP id 9145658010E; Mon, 1 Jun 2020 13:19:40 -0700 (PDT) Subject: [PATCH v6 12/13] 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: Organization: Intel Corp. Message-ID: Date: Mon, 1 Jun 2020 23:19:39 +0300 User-Agent: Mozilla/5.0 (Windows NT 10.0; WOW64; rv:68.0) Gecko/20100101 Thunderbird/68.8.1 MIME-Version: 1.0 In-Reply-To: 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 d0b29a1070a0..0394e068dde8 100644 --- a/tools/perf/builtin-record.c +++ b/tools/perf/builtin-record.c @@ -1527,6 +1527,7 @@ 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); @@ -1830,6 +1831,21 @@ 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