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, 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 AF4E6C432C0 for ; Mon, 25 Nov 2019 06:08:01 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 8D59B20674 for ; Mon, 25 Nov 2019 06:08:01 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1726094AbfKYGIA (ORCPT ); Mon, 25 Nov 2019 01:08:00 -0500 Received: from mga07.intel.com ([134.134.136.100]:24016 "EHLO mga07.intel.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1725468AbfKYGIA (ORCPT ); Mon, 25 Nov 2019 01:08:00 -0500 X-Amp-Result: SKIPPED(no attachment in message) X-Amp-File-Uploaded: False Received: from orsmga001.jf.intel.com ([10.7.209.18]) by orsmga105.jf.intel.com with ESMTP/TLS/DHE-RSA-AES256-GCM-SHA384; 24 Nov 2019 22:07:59 -0800 X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="5.69,240,1571727600"; d="scan'208";a="291273084" Received: from linux.intel.com ([10.54.29.200]) by orsmga001.jf.intel.com with ESMTP; 24 Nov 2019 22:07:59 -0800 Received: from [10.251.82.176] (abudanko-mobl.ccr.corp.intel.com [10.251.82.176]) by linux.intel.com (Postfix) with ESMTP id AE24B580577; Sun, 24 Nov 2019 22:07:57 -0800 (PST) Subject: [PATCH v2 2/3] perf mmap: declare type for cpu mask of arbitrary length 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, 25 Nov 2019 09:07:56 +0300 User-Agent: Mozilla/5.0 (Windows NT 10.0; WOW64; rv:60.0) Gecko/20100101 Thunderbird/60.9.1 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 Declare a dedicated struct map_cpu_mask type for cpu masks of arbitrary length. Mask is available thru bits pointer and the mask length is kept in nbits field. MMAP_CPU_MASK_BYTES() macro returns mask storage size in bytes. Signed-off-by: Alexey Budankov --- Changes in v2: - capitalized MMAP_CPU_MASK_BYTES() macro --- tools/perf/util/mmap.h | 9 +++++++++ 1 file changed, 9 insertions(+) diff --git a/tools/perf/util/mmap.h b/tools/perf/util/mmap.h index bee4e83f7109..786c235d6062 100644 --- a/tools/perf/util/mmap.h +++ b/tools/perf/util/mmap.h @@ -15,6 +15,15 @@ #include "event.h" struct aiocb; + +struct mmap_cpu_mask { + unsigned long *bits; + size_t nbits; +}; + +#define MMAP_CPU_MASK_BYTES(m) \ + (BITS_TO_LONGS(((struct mmap_cpu_mask *)m)->nbits) * sizeof(unsigned long)) + /** * struct mmap - perf's ring buffer mmap details * -- 2.20.1