From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S932114Ab1JMPJd (ORCPT ); Thu, 13 Oct 2011 11:09:33 -0400 Received: from casper.infradead.org ([85.118.1.10]:43432 "EHLO casper.infradead.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751262Ab1JMPIf (ORCPT ); Thu, 13 Oct 2011 11:08:35 -0400 From: Arnaldo Carvalho de Melo To: Ingo Molnar Cc: linux-kernel@vger.kernel.org, Arnaldo Carvalho de Melo , David Ahern , Frederic Weisbecker , Mike Galbraith , Paul Mackerras , Peter Zijlstra , Stephane Eranian Subject: [PATCH 2/6] perf hists: Don't free decayed entries if in the annotation browser Date: Thu, 13 Oct 2011 12:08:20 -0300 Message-Id: <1318518504-23299-3-git-send-email-acme@infradead.org> X-Mailer: git-send-email 1.6.2.5 In-Reply-To: <1318518504-23299-1-git-send-email-acme@infradead.org> References: <1318518504-23299-1-git-send-email-acme@infradead.org> X-SRS-Rewrite: SMTP reverse-path rewritten from by casper.infradead.org See http://www.infradead.org/rpr.html Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org From: Arnaldo Carvalho de Melo Just let it there till the user exits the annotation browser. Cc: David Ahern Cc: Frederic Weisbecker Cc: Mike Galbraith Cc: Paul Mackerras Cc: Peter Zijlstra Cc: Stephane Eranian Link: http://lkml.kernel.org/n/tip-nmaxuzreqhm5k10t2co5sk9a@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo --- tools/perf/util/hist.c | 10 ++++++++-- tools/perf/util/sort.h | 1 + tools/perf/util/ui/browsers/hists.c | 6 +++++- 3 files changed, 14 insertions(+), 3 deletions(-) diff --git a/tools/perf/util/hist.c b/tools/perf/util/hist.c index 50c8fec..9b9d12b 100644 --- a/tools/perf/util/hist.c +++ b/tools/perf/util/hist.c @@ -100,6 +100,8 @@ static void hist_entry__decay(struct hist_entry *he) static bool hists__decay_entry(struct hists *hists, struct hist_entry *he) { + if (he->period == 0) + return true; hists->stats.total_period -= he->period; hist_entry__decay(he); hists->stats.total_period += he->period; @@ -114,8 +116,12 @@ void hists__decay_entries(struct hists *hists) while (next) { n = rb_entry(next, struct hist_entry, rb_node); next = rb_next(&n->rb_node); - - if (hists__decay_entry(hists, n)) { + /* + * We may be annotating this, for instance, so keep it here in + * case some it gets new samples, we'll eventually free it when + * the user stops browsing and it agains gets fully decayed. + */ + if (hists__decay_entry(hists, n) && !n->used) { rb_erase(&n->rb_node, &hists->entries); if (sort__need_collapse) diff --git a/tools/perf/util/sort.h b/tools/perf/util/sort.h index 03851e3..3f67ae3 100644 --- a/tools/perf/util/sort.h +++ b/tools/perf/util/sort.h @@ -64,6 +64,7 @@ struct hist_entry { bool init_have_children; char level; + bool used; u8 filtered; struct symbol *parent; union { diff --git a/tools/perf/util/ui/browsers/hists.c b/tools/perf/util/ui/browsers/hists.c index 9ece843..fdc3c90 100644 --- a/tools/perf/util/ui/browsers/hists.c +++ b/tools/perf/util/ui/browsers/hists.c @@ -976,9 +976,13 @@ do_annotate: he = hist_browser__selected_entry(browser); if (he == NULL) continue; - + /* + * Don't let this be freed, say, by hists__decay_entry. + */ + he->used = true; hist_entry__tui_annotate(he, evsel->idx, nr_events, timer, arg, delay_secs); + he->used = false; ui_browser__update_nr_entries(&browser->b, browser->hists->nr_entries); } else if (choice == browse_map) map__browse(browser->selection->map); -- 1.6.2.5