linux-kernel - [tip:perf/core] perf report/tui: Fix a bug when --fields/ sort is given

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Message-ID: <tip-c0f1527b7e004f9a91e488f05c251213d16ad7ac@git.kernel.org>
Date:	Thu, 22 May 2014 05:22:49 -0700
From:	tip-bot for Namhyung Kim <tipbot@...or.com>
To:	linux-tip-commits@...r.kernel.org
Cc:	linux-kernel@...r.kernel.org, hpa@...or.com, mingo@...nel.org,
	jolsa@...nel.org, tglx@...utronix.de, namhyung@...nel.org
Subject: [tip:perf/core] perf report/tui: Fix a bug when --fields/
 sort is given

Commit-ID:  c0f1527b7e004f9a91e488f05c251213d16ad7ac
Gitweb:     http://git.kernel.org/tip/c0f1527b7e004f9a91e488f05c251213d16ad7ac
Author:     Namhyung Kim <namhyung@...nel.org>
AuthorDate: Wed, 16 Apr 2014 11:16:33 +0900
Committer:  Jiri Olsa <jolsa@...nel.org>
CommitDate: Wed, 21 May 2014 11:45:36 +0200

perf report/tui: Fix a bug when --fields/sort is given

The hists__filter_entries() function is called when down arrow key is
pressed for navigating through the entries in TUI.  It has a check for
filtering out entries that have very small overhead (under min_pcnt).

However it just assumed the entries are sorted by the overhead so when
it saw such a small overheaded entry, it just stopped navigating as an
optimization.  But it's not true anymore due to new --fields and
--sort optoin behavior and this case users cannot go down to a next
entry if ther's an entry with small overhead in-between.

Signed-off-by: Namhyung Kim <namhyung@...nel.org>
Link: http://lkml.kernel.org/r/1400480762-22852-14-git-send-email-namhyung@kernel.org
Signed-off-by: Jiri Olsa <jolsa@...nel.org>
---
 tools/perf/ui/browsers/hists.c | 5 +----
 1 file changed, 1 insertion(+), 4 deletions(-)

diff --git a/tools/perf/ui/browsers/hists.c b/tools/perf/ui/browsers/hists.c
index 92d128f..169224c 100644
--- a/tools/perf/ui/browsers/hists.c
+++ b/tools/perf/ui/browsers/hists.c
@@ -812,10 +812,7 @@ static struct rb_node *hists__filter_entries(struct rb_node *nd,
 		if (total)
 			percent = h->stat.period * 100.0 / total;
 
-		if (percent < min_pcnt)
-			return NULL;
-
-		if (!h->filtered)
+		if (!h->filtered && percent >= min_pcnt)
 			return nd;
 
 		nd = rb_next(nd);
--
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