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=-12.1 required=3.0 tests=DKIMWL_WL_HIGH,DKIM_SIGNED, DKIM_VALID,DKIM_VALID_AU,INCLUDES_PATCH,MAILING_LIST_MULTI, MENTIONS_GIT_HOSTING,SIGNED_OFF_BY,SPF_HELO_NONE,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 CB79EC4CEC5 for ; Fri, 13 Sep 2019 13:25:48 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id A0F2A206A5 for ; Fri, 13 Sep 2019 13:25:48 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1568381148; bh=w2mSwgQ4MPsC5RyfKosW9XcE3D8ISonTkxw4RWtsuj4=; h=From:To:Cc:Subject:Date:In-Reply-To:References:List-ID:From; b=BIIWY5R+wOipF5sXfj4MqnAil9YW+Xl0bznB2RaeoOphyJa/cpb+B1wrjESfWz+Uy IKbTg8uGk7SI5YMyTaNrl7HttnSFoeIWreU1ccrwUU+1/OuZh3ogXBpgAaAtcKU3zP +8SMQKvSqN2KVO0BDsPyaRhvUb8dbuZaWknDXxws= Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S2391436AbfIMNZr (ORCPT ); Fri, 13 Sep 2019 09:25:47 -0400 Received: from mx1.redhat.com ([209.132.183.28]:37480 "EHLO mx1.redhat.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S2391419AbfIMNZn (ORCPT ); Fri, 13 Sep 2019 09:25:43 -0400 Received: from smtp.corp.redhat.com (int-mx06.intmail.prod.int.phx2.redhat.com [10.5.11.16]) (using TLSv1.2 with cipher AECDH-AES256-SHA (256/256 bits)) (No client certificate requested) by mx1.redhat.com (Postfix) with ESMTPS id 1614011A1F; Fri, 13 Sep 2019 13:25:43 +0000 (UTC) Received: from krava.brq.redhat.com (unknown [10.43.17.36]) by smtp.corp.redhat.com (Postfix) with ESMTP id 6D3EF5C1D4; Fri, 13 Sep 2019 13:25:41 +0000 (UTC) From: Jiri Olsa To: Arnaldo Carvalho de Melo Cc: lkml , Ingo Molnar , Namhyung Kim , Alexander Shishkin , Peter Zijlstra , Michael Petlan Subject: [PATCH 42/73] libperf: Add perf_mmap__mmap function Date: Fri, 13 Sep 2019 15:23:24 +0200 Message-Id: <20190913132355.21634-43-jolsa@kernel.org> In-Reply-To: <20190913132355.21634-1-jolsa@kernel.org> References: <20190913132355.21634-1-jolsa@kernel.org> MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-Scanned-By: MIMEDefang 2.79 on 10.5.11.16 X-Greylist: Sender IP whitelisted, not delayed by milter-greylist-4.5.16 (mx1.redhat.com [10.5.110.28]); Fri, 13 Sep 2019 13:25:43 +0000 (UTC) Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Move perf_mmap__mmap function under libperf, it will be used in following patches. And rename the existing perf's function to mmap__mmap. Link: http://lkml.kernel.org/n/tip-ze68z5bxg5d76983b63vf54m@git.kernel.org Signed-off-by: Jiri Olsa --- tools/perf/lib/include/internal/mmap.h | 2 ++ tools/perf/lib/mmap.c | 18 ++++++++++++++++++ tools/perf/util/evlist.c | 2 +- tools/perf/util/mmap.c | 12 +++--------- tools/perf/util/mmap.h | 2 +- 5 files changed, 25 insertions(+), 11 deletions(-) diff --git a/tools/perf/lib/include/internal/mmap.h b/tools/perf/lib/include/internal/mmap.h index 45ab791aa392..5452ed7dabfe 100644 --- a/tools/perf/lib/include/internal/mmap.h +++ b/tools/perf/lib/include/internal/mmap.h @@ -37,5 +37,7 @@ struct perf_mmap_param { size_t perf_mmap__mmap_len(struct perf_mmap *map); void perf_mmap__init(struct perf_mmap *map, bool overwrite); +int perf_mmap__mmap(struct perf_mmap *map, struct perf_mmap_param *mp, + int fd, int cpu); #endif /* __LIBPERF_INTERNAL_MMAP_H */ diff --git a/tools/perf/lib/mmap.c b/tools/perf/lib/mmap.c index cc4284da4d99..b216a7db857f 100644 --- a/tools/perf/lib/mmap.c +++ b/tools/perf/lib/mmap.c @@ -1,4 +1,5 @@ // SPDX-License-Identifier: GPL-2.0 +#include #include #include @@ -13,3 +14,20 @@ size_t perf_mmap__mmap_len(struct perf_mmap *map) { return map->mask + 1 + page_size; } + +int perf_mmap__mmap(struct perf_mmap *map, struct perf_mmap_param *mp, + int fd, int cpu) +{ + map->prev = 0; + map->mask = mp->mask; + map->base = mmap(NULL, perf_mmap__mmap_len(map), mp->prot, + MAP_SHARED, fd, 0); + if (map->base == MAP_FAILED) { + map->base = NULL; + return -1; + } + + map->fd = fd; + map->cpu = cpu; + return 0; +} diff --git a/tools/perf/util/evlist.c b/tools/perf/util/evlist.c index c0c0882dc343..8da573307734 100644 --- a/tools/perf/util/evlist.c +++ b/tools/perf/util/evlist.c @@ -670,7 +670,7 @@ static int evlist__mmap_per_evsel(struct evlist *evlist, int idx, if (*output == -1) { *output = fd; - if (perf_mmap__mmap(&maps[idx], mp, *output, evlist_cpu) < 0) + if (mmap__mmap(&maps[idx], mp, *output, evlist_cpu) < 0) return -1; } else { if (ioctl(fd, PERF_EVENT_IOC_SET_OUTPUT, *output) != 0) diff --git a/tools/perf/util/mmap.c b/tools/perf/util/mmap.c index 4e2ef633d425..7096e9b130cd 100644 --- a/tools/perf/util/mmap.c +++ b/tools/perf/util/mmap.c @@ -352,7 +352,7 @@ static void perf_mmap__setup_affinity_mask(struct mmap *map, struct mmap_params CPU_SET(map->core.cpu, &map->affinity_mask); } -int perf_mmap__mmap(struct mmap *map, struct mmap_params *mp, int fd, int cpu) +int mmap__mmap(struct mmap *map, struct mmap_params *mp, int fd, int cpu) { /* * The last one will be done at perf_mmap__consume(), so that we @@ -368,18 +368,12 @@ int perf_mmap__mmap(struct mmap *map, struct mmap_params *mp, int fd, int cpu) * perf_evlist__filter_pollfd(). */ refcount_set(&map->core.refcnt, 2); - map->core.prev = 0; - map->core.mask = mp->core.mask; - map->core.base = mmap(NULL, mmap__mmap_len(map), mp->core.prot, - MAP_SHARED, fd, 0); - if (map->core.base == MAP_FAILED) { + + if (perf_mmap__mmap(&map->core, &mp->core, fd, cpu)) { pr_debug2("failed to mmap perf event ring buffer, error %d\n", errno); - map->core.base = NULL; return -1; } - map->core.fd = fd; - map->core.cpu = cpu; perf_mmap__setup_affinity_mask(map, mp); diff --git a/tools/perf/util/mmap.h b/tools/perf/util/mmap.h index 308492a59ea1..aeb94d128354 100644 --- a/tools/perf/util/mmap.h +++ b/tools/perf/util/mmap.h @@ -70,7 +70,7 @@ struct mmap_params { struct auxtrace_mmap_params auxtrace_mp; }; -int perf_mmap__mmap(struct mmap *map, struct mmap_params *mp, int fd, int cpu); +int mmap__mmap(struct mmap *map, struct mmap_params *mp, int fd, int cpu); void perf_mmap__munmap(struct mmap *map); void perf_mmap__get(struct mmap *map); -- 2.21.0