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=-12.0 required=3.0 tests=HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_PATCH,MAILING_LIST_MULTI, MENTIONS_GIT_HOSTING,SIGNED_OFF_BY,SPF_PASS,URIBL_BLOCKED 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 D4814C282C3 for ; Tue, 22 Jan 2019 10:14:01 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id A8AD92085A for ; Tue, 22 Jan 2019 10:14:01 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1727152AbfAVKOA (ORCPT ); Tue, 22 Jan 2019 05:14:00 -0500 Received: from terminus.zytor.com ([198.137.202.136]:52231 "EHLO terminus.zytor.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1726058AbfAVKN7 (ORCPT ); Tue, 22 Jan 2019 05:13:59 -0500 Received: from terminus.zytor.com (localhost [127.0.0.1]) by terminus.zytor.com (8.15.2/8.15.2) with ESMTPS id x0MADmPQ2906531 (version=TLSv1.3 cipher=TLS_AES_256_GCM_SHA384 bits=256 verify=NO); Tue, 22 Jan 2019 02:13:48 -0800 Received: (from tipbot@localhost) by terminus.zytor.com (8.15.2/8.15.2/Submit) id x0MADmcF2906528; Tue, 22 Jan 2019 02:13:48 -0800 Date: Tue, 22 Jan 2019 02:13:48 -0800 X-Authentication-Warning: terminus.zytor.com: tipbot set sender to tipbot@zytor.com using -f From: tip-bot for Jiri Olsa Message-ID: Cc: hpa@zytor.com, tglx@linutronix.de, linux-kernel@vger.kernel.org, acme@redhat.com, peterz@infradead.org, mingo@kernel.org, alexander.shishkin@linux.intel.com, namhyung@kernel.org, jolsa@kernel.org Reply-To: tglx@linutronix.de, hpa@zytor.com, acme@redhat.com, linux-kernel@vger.kernel.org, peterz@infradead.org, jolsa@kernel.org, namhyung@kernel.org, alexander.shishkin@linux.intel.com, mingo@kernel.org In-Reply-To: <20190110101301.6196-7-jolsa@kernel.org> References: <20190110101301.6196-7-jolsa@kernel.org> To: linux-tip-commits@vger.kernel.org Subject: [tip:perf/core] perf session: Add reader__process_events function Git-Commit-ID: 3c7b67b23eb317787d113b1e9a6d82250202a1e3 X-Mailer: tip-git-log-daemon Robot-ID: Robot-Unsubscribe: Contact to get blacklisted from these emails MIME-Version: 1.0 Content-Transfer-Encoding: 8bit Content-Type: text/plain; charset=UTF-8 Content-Disposition: inline Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Commit-ID: 3c7b67b23eb317787d113b1e9a6d82250202a1e3 Gitweb: https://git.kernel.org/tip/3c7b67b23eb317787d113b1e9a6d82250202a1e3 Author: Jiri Olsa AuthorDate: Thu, 10 Jan 2019 11:13:01 +0100 Committer: Arnaldo Carvalho de Melo CommitDate: Mon, 21 Jan 2019 15:15:57 -0300 perf session: Add reader__process_events function The reader object is defined by file's fd, data offset and data size. Now we can simply define a reader object for an arbitrary file data portion and pass it to reader__process_events(). Signed-off-by: Jiri Olsa Acked-by: Namhyung Kim Cc: Alexander Shishkin Cc: Peter Zijlstra Link: http://lkml.kernel.org/r/20190110101301.6196-7-jolsa@kernel.org Signed-off-by: Arnaldo Carvalho de Melo --- tools/perf/util/session.c | 62 +++++++++++++++++++++++++++++------------------ 1 file changed, 38 insertions(+), 24 deletions(-) diff --git a/tools/perf/util/session.c b/tools/perf/util/session.c index 173cf445475c..d6f41611f504 100644 --- a/tools/perf/util/session.c +++ b/tools/perf/util/session.c @@ -1826,36 +1826,25 @@ struct reader { u64 data_offset; }; -static int __perf_session__process_events(struct perf_session *session) +static int +reader__process_events(struct reader *rd, struct perf_session *session, + struct ui_progress *prog) { - struct reader rd = { - .fd = perf_data__fd(session->data), - .data_size = session->header.data_size, - .data_offset = session->header.data_offset, - }; - struct ordered_events *oe = &session->ordered_events; - struct perf_tool *tool = session->tool; - u64 data_size = rd.data_size; + u64 data_size = rd->data_size; u64 head, page_offset, file_offset, file_pos, size; - int err, mmap_prot, mmap_flags, map_idx = 0; + int err = 0, mmap_prot, mmap_flags, map_idx = 0; size_t mmap_size; char *buf, *mmaps[NUM_MMAPS]; union perf_event *event; - struct ui_progress prog; s64 skip; - perf_tool__fill_defaults(tool); - - page_offset = page_size * (rd.data_offset / page_size); + page_offset = page_size * (rd->data_offset / page_size); file_offset = page_offset; - head = rd.data_offset - page_offset; + head = rd->data_offset - page_offset; - if (data_size == 0) - goto out; + ui_progress__init_size(prog, data_size, "Processing events..."); - ui_progress__init_size(&prog, data_size, "Processing events..."); - - data_size += rd.data_offset; + data_size += rd->data_offset; mmap_size = MMAP_SIZE; if (mmap_size > data_size) { @@ -1873,12 +1862,12 @@ static int __perf_session__process_events(struct perf_session *session) mmap_flags = MAP_PRIVATE; } remap: - buf = mmap(NULL, mmap_size, mmap_prot, mmap_flags, rd.fd, + buf = mmap(NULL, mmap_size, mmap_prot, mmap_flags, rd->fd, file_offset); if (buf == MAP_FAILED) { pr_err("failed to mmap file\n"); err = -errno; - goto out_err; + goto out; } mmaps[map_idx] = buf; map_idx = (map_idx + 1) & (ARRAY_SIZE(mmaps) - 1); @@ -1910,7 +1899,7 @@ more: file_offset + head, event->header.size, event->header.type); err = -EINVAL; - goto out_err; + goto out; } if (skip) @@ -1919,7 +1908,7 @@ more: head += size; file_pos += size; - ui_progress__update(&prog, size); + ui_progress__update(prog, size); if (session_done()) goto out; @@ -1928,6 +1917,31 @@ more: goto more; out: + return err; +} + +static int __perf_session__process_events(struct perf_session *session) +{ + struct reader rd = { + .fd = perf_data__fd(session->data), + .data_size = session->header.data_size, + .data_offset = session->header.data_offset, + }; + struct ordered_events *oe = &session->ordered_events; + struct perf_tool *tool = session->tool; + struct ui_progress prog; + int err; + + perf_tool__fill_defaults(tool); + + if (rd.data_size == 0) + return -1; + + ui_progress__init_size(&prog, rd.data_size, "Processing events..."); + + err = reader__process_events(&rd, session, &prog); + if (err) + goto out_err; /* do the final flush for ordered samples */ err = ordered_events__flush(oe, OE_FLUSH__FINAL); if (err)