Patch "perf top: Fix refreshing hierarchy entries on TUI" has been added to the 4.8-stable tree

Patch "perf top: Fix refreshing hierarchy entries on TUI" has been added to the 4.8-stable tree

[gregkh]

This is a note to let you know that I've just added the patch titled

    perf top: Fix refreshing hierarchy entries on TUI

to the 4.8-stable tree which can be found at:
    http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary

The filename of the patch is:
     perf-top-fix-refreshing-hierarchy-entries-on-tui.patch
and it can be found in the queue-4.8 subdirectory.

If you, or anyone else, feels it should not be added to the stable tree,
please let <stable@vger.kernel.org> know about it.


>From c611152373e84a7677cd7d496e849de4debdab66 Mon Sep 17 00:00:00 2001
From: Namhyung Kim <namhyung@kernel.org>
Date: Fri, 7 Oct 2016 14:04:12 +0900
Subject: perf top: Fix refreshing hierarchy entries on TUI

From: Namhyung Kim <namhyung@kernel.org>

commit c611152373e84a7677cd7d496e849de4debdab66 upstream.

Markus reported that 'perf top --hierarchy' cannot scroll down after
refresh.  This was because the number of entries are not updated when
hierarchy is enabled.

Unlike normal report view, hierarchy mode needs to keep its own entry
count since it can have non-leaf entries which can expand/collapse.

Reported-and-Tested-by: Markus Trippelsdorf <markus@trippelsdorf.de>
Signed-off-by: Namhyung Kim <namhyung@kernel.org>
Tested-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Cc: Andi Kleen <andi@firstfloor.org>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
Fixes: f5b763feebe9 ("perf hists browser: Count number of hierarchy entries")
Link: http://lkml.kernel.org/r/20161007050412.3000-1-namhyung@kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

---
 tools/perf/ui/browsers/hists.c |    3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

--- a/tools/perf/ui/browsers/hists.c
+++ b/tools/perf/ui/browsers/hists.c
@@ -595,7 +595,8 @@ int hist_browser__run(struct hist_browse
 			u64 nr_entries;
 			hbt->timer(hbt->arg);
 
-			if (hist_browser__has_filter(browser))
+			if (hist_browser__has_filter(browser) ||
+			    symbol_conf.report_hierarchy)
 				hist_browser__update_nr_entries(browser);
 
 			nr_entries = hist_browser__nr_entries(browser);


Patches currently in stable-queue which might be from namhyung@kernel.org are

queue-4.8/perf-top-fix-refreshing-hierarchy-entries-on-tui.patch