linux-kernel - [tip:perf/core] perf hists browser: Update nr entries regardless of min percent

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Message-ID: <tip-039050482573e168690d365b8ea1d4f599ebbbd8@git.kernel.org>
Date:	Sat, 28 Nov 2015 23:56:59 -0800
From:	tip-bot for Namhyung Kim <tipbot@...or.com>
To:	linux-tip-commits@...r.kernel.org
Cc:	hpa@...or.com, tglx@...utronix.de, a.p.zijlstra@...llo.nl,
	mingo@...nel.org, namhyung@...nel.org, jolsa@...hat.com,
	dsahern@...il.com, linux-kernel@...r.kernel.org, acme@...hat.com
Subject: [tip:perf/core] perf hists browser:
  Update nr entries regardless of min percent

Commit-ID:  039050482573e168690d365b8ea1d4f599ebbbd8
Gitweb:     http://git.kernel.org/tip/039050482573e168690d365b8ea1d4f599ebbbd8
Author:     Namhyung Kim <namhyung@...nel.org>
AuthorDate: Sat, 28 Nov 2015 02:32:39 +0900
Committer:  Arnaldo Carvalho de Melo <acme@...hat.com>
CommitDate: Fri, 27 Nov 2015 21:53:33 -0300

perf hists browser: Update nr entries regardless of min percent

When perf report on TUI was called with -S symbol filter, it should
update nr entries even if min_pcnt is 0.  IIRC the reason was to update
nr entries after applying minimum percent threshold.  But if symbol
filter was given on command line (with -S option), it should use
hists->nr_non_filtered_entries instead of hists->nr_entries.

So this patch fixes a bug of navigating hists browser that the cursor
goes beyond the number of entries when -S (or similar) option is used.

Signed-off-by: Namhyung Kim <namhyung@...nel.org>
Tested-by: Arnaldo Carvalho de Melo <acme@...hat.com>
Cc: David Ahern <dsahern@...il.com>
Cc: Jiri Olsa <jolsa@...hat.com>
Cc: Peter Zijlstra <a.p.zijlstra@...llo.nl>
Link: http://lkml.kernel.org/r/1448645559-31167-3-git-send-email-namhyung@kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@...hat.com>
---
 tools/perf/ui/browsers/hists.c | 5 ++---
 1 file changed, 2 insertions(+), 3 deletions(-)

diff --git a/tools/perf/ui/browsers/hists.c b/tools/perf/ui/browsers/hists.c
index a211b7b..dcdcbaf 100644
--- a/tools/perf/ui/browsers/hists.c
+++ b/tools/perf/ui/browsers/hists.c
@@ -2055,10 +2055,9 @@ static int perf_evsel__hists_browse(struct perf_evsel *evsel, int nr_events,
 	SLang_reset_tty();
 	SLang_init_tty(0, 0, 0);
 
-	if (min_pcnt) {
+	if (min_pcnt)
 		browser->min_pcnt = min_pcnt;
-		hist_browser__update_nr_entries(browser);
-	}
+	hist_browser__update_nr_entries(browser);
 
 	browser->pstack = pstack__new(3);
 	if (browser->pstack == NULL)
--
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