From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1752003AbcEMH6J (ORCPT ); Fri, 13 May 2016 03:58:09 -0400 Received: from szxga02-in.huawei.com ([119.145.14.65]:29799 "EHLO szxga02-in.huawei.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751316AbcEMH6G (ORCPT ); Fri, 13 May 2016 03:58:06 -0400 From: Wang Nan To: CC: , , Wang Nan , Arnaldo Carvalho de Melo , "Peter Zijlstra" , Zefan Li , Subject: [PATCH 01/17] perf tools: Extract __perf_evlist__mmap_read() Date: Fri, 13 May 2016 07:55:58 +0000 Message-ID: <1463126174-119290-2-git-send-email-wangnan0@huawei.com> X-Mailer: git-send-email 1.8.3.4 In-Reply-To: <1463126174-119290-1-git-send-email-wangnan0@huawei.com> References: <1463126174-119290-1-git-send-email-wangnan0@huawei.com> MIME-Version: 1.0 Content-Type: text/plain X-Originating-IP: [10.107.193.248] X-CFilter-Loop: Reflected X-Mirapoint-Virus-RAPID-Raw: score=unknown(0), refid=str=0001.0A020203.573588AF.010A,ss=1,re=0.000,recu=0.000,reip=0.000,cl=1,cld=1,fgs=0, ip=0.0.0.0, so=2013-06-18 04:22:30, dmn=2013-03-21 17:37:32 X-Mirapoint-Loop-Id: e762894e3f7f795ae9aa8fc89d8d4ec4 Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Extract event reader to __perf_evlist__mmap_read(). Future commit will feed it with manually computed 'head' and 'old' pointers. Signed-off-by: Wang Nan Cc: Arnaldo Carvalho de Melo Cc: Peter Zijlstra Cc: Zefan Li Cc: pi3orama@163.com --- tools/perf/util/evlist.c | 10 +++++++++- 1 file changed, 9 insertions(+), 1 deletion(-) diff --git a/tools/perf/util/evlist.c b/tools/perf/util/evlist.c index c4bfe11..5e86972 100644 --- a/tools/perf/util/evlist.c +++ b/tools/perf/util/evlist.c @@ -749,6 +749,13 @@ broken_event: return event; } +static union perf_event * +__perf_evlist__mmap_read(struct perf_mmap *md, bool overwrite, u64 head, + u64 old, u64 *prev) +{ + return perf_mmap__read(md, overwrite, old, head, prev); +} + union perf_event *perf_evlist__mmap_read(struct perf_evlist *evlist, int idx) { struct perf_mmap *md = &evlist->mmap[idx]; @@ -763,7 +770,8 @@ union perf_event *perf_evlist__mmap_read(struct perf_evlist *evlist, int idx) head = perf_mmap__read_head(md); - return perf_mmap__read(md, evlist->overwrite, old, head, &md->prev); + return __perf_evlist__mmap_read(md, evlist->overwrite, head, + old, &md->prev); } union perf_event * -- 1.8.3.4