From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1752973Ab0AaIbq (ORCPT ); Sun, 31 Jan 2010 03:31:46 -0500 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1752826Ab0AaIbo (ORCPT ); Sun, 31 Jan 2010 03:31:44 -0500 Received: from hera.kernel.org ([140.211.167.34]:51257 "EHLO hera.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751867Ab0AaIbn (ORCPT ); Sun, 31 Jan 2010 03:31:43 -0500 Date: Sun, 31 Jan 2010 08:30:50 GMT From: tip-bot for Hitoshi Mitake Cc: linux-kernel@vger.kernel.org, acme@redhat.com, paulus@samba.org, hpa@zytor.com, mingo@redhat.com, a.p.zijlstra@chello.nl, efault@gmx.de, mitake@dcl.info.waseda.ac.jp, fweisbec@gmail.com, tglx@linutronix.de, mingo@elte.hu Reply-To: mingo@redhat.com, hpa@zytor.com, paulus@samba.org, acme@redhat.com, linux-kernel@vger.kernel.org, fweisbec@gmail.com, a.p.zijlstra@chello.nl, efault@gmx.de, mitake@dcl.info.waseda.ac.jp, tglx@linutronix.de, mingo@elte.hu In-Reply-To: References: To: linux-tip-commits@vger.kernel.org Subject: [tip:perf/core] Revert "perf record: Intercept all events" Message-ID: Git-Commit-ID: a8e6f734ce9a79d44ebb296f2a341f435227b34e X-Mailer: tip-git-log-daemon MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Disposition: inline X-Greylist: Sender IP whitelisted, not delayed by milter-greylist-4.2.3 (hera.kernel.org [127.0.0.1]); Sun, 31 Jan 2010 08:30:53 +0000 (UTC) Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Commit-ID: a8e6f734ce9a79d44ebb296f2a341f435227b34e Gitweb: http://git.kernel.org/tip/a8e6f734ce9a79d44ebb296f2a341f435227b34e Author: Hitoshi Mitake AuthorDate: Sat, 30 Jan 2010 20:55:41 +0900 Committer: Ingo Molnar CommitDate: Sun, 31 Jan 2010 08:27:52 +0100 Revert "perf record: Intercept all events" This reverts commit f5a2c3dce03621b55f84496f58adc2d1a87ca16f. This patch is required for making "perf lock rec" work. The commit f5a2c3dce0 changes write_event() of builtin-record.c . And changed write_event() sometimes doesn't stop with perf lock rec. Cc: Peter Zijlstra Cc: Mike Galbraith Cc: Paul Mackerras Cc: Arnaldo Carvalho de Melo Cc: Frederic Weisbecker LKML-Reference: [ that commit also causes perf record to not be Ctrl-C-able, and it's concetually wrong to parse the data at record time (unconditionally - even when not needed), as we eventually want to be able to do zero-copy recording, at least for non-archive recordings. ] Signed-off-by: Ingo Molnar --- tools/perf/builtin-record.c | 28 ++++++++++------------------ 1 files changed, 10 insertions(+), 18 deletions(-) diff --git a/tools/perf/builtin-record.c b/tools/perf/builtin-record.c index 9034522..eea5691 100644 --- a/tools/perf/builtin-record.c +++ b/tools/perf/builtin-record.c @@ -113,24 +113,16 @@ static void write_output(void *buf, size_t size) static void write_event(event_t *buf, size_t size) { - size_t processed_size = buf->header.size; - event_t *ev = buf; - - do { - /* - * Add it to the list of DSOs, so that when we finish this - * record session we can pick the available build-ids. - */ - if (ev->header.type == PERF_RECORD_MMAP) { - struct list_head *head = &dsos__user; - if (ev->header.misc == 1) - head = &dsos__kernel; - __dsos__findnew(head, ev->mmap.filename); - } - - ev = ((void *)ev) + ev->header.size; - processed_size += ev->header.size; - } while (processed_size < size); + /* + * Add it to the list of DSOs, so that when we finish this + * record session we can pick the available build-ids. + */ + if (buf->header.type == PERF_RECORD_MMAP) { + struct list_head *head = &dsos__user; + if (buf->mmap.header.misc == 1) + head = &dsos__kernel; + __dsos__findnew(head, buf->mmap.filename); + } write_output(buf, size); }