From mboxrd@z Thu Jan 1 00:00:00 1970 Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S933206AbeAIPhg (ORCPT + 1 other); Tue, 9 Jan 2018 10:37:36 -0500 Received: from mx1.redhat.com ([209.132.183.28]:23826 "EHLO mx1.redhat.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1759129AbeAIPh0 (ORCPT ); Tue, 9 Jan 2018 10:37:26 -0500 From: Jiri Olsa To: Arnaldo Carvalho de Melo Cc: lkml , Ingo Molnar , Namhyung Kim , David Ahern , Andi Kleen , Alexander Shishkin , Peter Zijlstra Subject: [PATCH 37/49] perf tools: Add perf_mmap__read_tail function Date: Tue, 9 Jan 2018 16:35:10 +0100 Message-Id: <20180109153522.14116-38-jolsa@kernel.org> In-Reply-To: <20180109153522.14116-1-jolsa@kernel.org> References: <20180109153522.14116-1-jolsa@kernel.org> X-Greylist: Sender IP whitelisted, not delayed by milter-greylist-4.5.16 (mx1.redhat.com [10.5.110.27]); Tue, 09 Jan 2018 15:37:26 +0000 (UTC) Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Return-Path: 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 b14bf0040518..b6f7d4a9be01 100644 --- a/tools/perf/util/mmap.h +++ b/tools/perf/util/mmap.h @@ -78,6 +78,13 @@ 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; -- 2.13.6