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=-1.0 required=3.0 tests=MAILING_LIST_MULTI,SPF_PASS 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 BAB5EC04ABB for ; Thu, 13 Sep 2018 12:56:18 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 7C62320854 for ; Thu, 13 Sep 2018 12:56:18 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 7C62320854 Authentication-Results: mail.kernel.org; dmarc=fail (p=none dis=none) header.from=kernel.org Authentication-Results: mail.kernel.org; spf=none smtp.mailfrom=linux-kernel-owner@vger.kernel.org Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1728511AbeIMSFh (ORCPT ); Thu, 13 Sep 2018 14:05:37 -0400 Received: from mx1.redhat.com ([209.132.183.28]:42122 "EHLO mx1.redhat.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1726741AbeIMSFf (ORCPT ); Thu, 13 Sep 2018 14:05:35 -0400 Received: from smtp.corp.redhat.com (int-mx01.intmail.prod.int.phx2.redhat.com [10.5.11.11]) (using TLSv1.2 with cipher AECDH-AES256-SHA (256/256 bits)) (No client certificate requested) by mx1.redhat.com (Postfix) with ESMTPS id 237433082120; Thu, 13 Sep 2018 12:56:15 +0000 (UTC) Received: from krava.brq.redhat.com (unknown [10.43.17.10]) by smtp.corp.redhat.com (Postfix) with ESMTP id 490E3600C8; Thu, 13 Sep 2018 12:56:13 +0000 (UTC) From: Jiri Olsa To: Arnaldo Carvalho de Melo Cc: lkml , Ingo Molnar , Namhyung Kim , Alexander Shishkin , Peter Zijlstra , Andi Kleen , Alexey Budankov Subject: [PATCH 36/48] perf tools: Add perf_mmap__read_tail function Date: Thu, 13 Sep 2018 14:54:38 +0200 Message-Id: <20180913125450.21342-37-jolsa@kernel.org> In-Reply-To: <20180913125450.21342-1-jolsa@kernel.org> References: <20180913125450.21342-1-jolsa@kernel.org> X-Scanned-By: MIMEDefang 2.79 on 10.5.11.11 X-Greylist: Sender IP whitelisted, not delayed by milter-greylist-4.5.16 (mx1.redhat.com [10.5.110.42]); Thu, 13 Sep 2018 12:56:15 +0000 (UTC) Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org It will be used in following patches. Link: http://lkml.kernel.org/n/tip-4id1fjlu5ypfqnu9kvpo7l3z@git.kernel.org Signed-off-by: Jiri Olsa --- tools/perf/util/mmap.h | 7 +++++++ 1 file changed, 7 insertions(+) diff --git a/tools/perf/util/mmap.h b/tools/perf/util/mmap.h index bad05b12b9df..eb39d3f85b93 100644 --- a/tools/perf/util/mmap.h +++ b/tools/perf/util/mmap.h @@ -79,6 +79,13 @@ static inline u64 perf_mmap__read_head(struct perf_mmap *mm) return head; } +static inline u64 perf_mmap__read_tail(struct perf_mmap *md) +{ + struct perf_event_mmap_page *pc = md->base; + + return pc->data_tail; +} + static inline void perf_mmap__write_tail(struct perf_mmap *md, u64 tail) { struct perf_event_mmap_page *pc = md->base; -- 2.17.1