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=-16.8 required=3.0 tests=BAYES_00, HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_CR_TRAILER,INCLUDES_PATCH, MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS,URIBL_BLOCKED,USER_AGENT_GIT 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 C247FC11F69 for ; Fri, 2 Jul 2021 12:32:53 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id A981E6142C for ; Fri, 2 Jul 2021 12:32:53 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S232326AbhGBMfY (ORCPT ); Fri, 2 Jul 2021 08:35:24 -0400 Received: from mga01.intel.com ([192.55.52.88]:3459 "EHLO mga01.intel.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S232322AbhGBMfV (ORCPT ); Fri, 2 Jul 2021 08:35:21 -0400 X-IronPort-AV: E=McAfee;i="6200,9189,10032"; a="230397093" X-IronPort-AV: E=Sophos;i="5.83,317,1616482800"; d="scan'208";a="230397093" Received: from fmsmga006.fm.intel.com ([10.253.24.20]) by fmsmga101.fm.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 02 Jul 2021 05:32:49 -0700 X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="5.83,317,1616482800"; d="scan'208";a="642660178" Received: from nntpat99-84.inn.intel.com ([10.125.99.84]) by fmsmga006.fm.intel.com with ESMTP; 02 Jul 2021 05:32:46 -0700 From: Alexey Bayduraev To: Arnaldo Carvalho de Melo Cc: Jiri Olsa , Namhyung Kim , Alexander Shishkin , Peter Zijlstra , Ingo Molnar , linux-kernel , Andi Kleen , Adrian Hunter , Alexander Antonov , Alexei Budankov , Riccardo Mancini Subject: [PATCH v9 04/24] perf record: Introduce function to propagate control commands Date: Fri, 2 Jul 2021 15:32:12 +0300 Message-Id: <260a6766bbed13b530060e8231ba8ddfecc8f795.1625227739.git.alexey.v.bayduraev@linux.intel.com> X-Mailer: git-send-email 2.19.0 In-Reply-To: References: MIME-Version: 1.0 Content-Transfer-Encoding: 8bit Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Introduce evlist__ctlfd_update() function to propagate external control commands to global evlist object. Acked-by: Andi Kleen Acked-by: Namhyung Kim Signed-off-by: Alexey Bayduraev --- tools/perf/util/evlist.c | 16 ++++++++++++++++ tools/perf/util/evlist.h | 1 + 2 files changed, 17 insertions(+) diff --git a/tools/perf/util/evlist.c b/tools/perf/util/evlist.c index 6ba9664089bd..3d555a98c037 100644 --- a/tools/perf/util/evlist.c +++ b/tools/perf/util/evlist.c @@ -2132,6 +2132,22 @@ int evlist__ctlfd_process(struct evlist *evlist, enum evlist_ctl_cmd *cmd) return err; } +int evlist__ctlfd_update(struct evlist *evlist, struct pollfd *update) +{ + int ctlfd_pos = evlist->ctl_fd.pos; + struct pollfd *entries = evlist->core.pollfd.entries; + + if (!evlist__ctlfd_initialized(evlist)) + return 0; + + if (entries[ctlfd_pos].fd != update->fd || + entries[ctlfd_pos].events != update->events) + return -1; + + entries[ctlfd_pos].revents = update->revents; + return 0; +} + struct evsel *evlist__find_evsel(struct evlist *evlist, int idx) { struct evsel *evsel; diff --git a/tools/perf/util/evlist.h b/tools/perf/util/evlist.h index 2073cfa79f79..b7aa719c638d 100644 --- a/tools/perf/util/evlist.h +++ b/tools/perf/util/evlist.h @@ -358,6 +358,7 @@ void evlist__close_control(int ctl_fd, int ctl_fd_ack, bool *ctl_fd_close); int evlist__initialize_ctlfd(struct evlist *evlist, int ctl_fd, int ctl_fd_ack); int evlist__finalize_ctlfd(struct evlist *evlist); bool evlist__ctlfd_initialized(struct evlist *evlist); +int evlist__ctlfd_update(struct evlist *evlist, struct pollfd *update); int evlist__ctlfd_process(struct evlist *evlist, enum evlist_ctl_cmd *cmd); int evlist__ctlfd_ack(struct evlist *evlist); -- 2.19.0