4.8-stable review patch. If anyone has any objections, please let me know.
------------------ From: Namhyung Kim <[email protected]> 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 <[email protected]> Signed-off-by: Namhyung Kim <[email protected]> Tested-by: Arnaldo Carvalho de Melo <[email protected]> Cc: Andi Kleen <[email protected]> Cc: Jiri Olsa <[email protected]> Cc: Peter Zijlstra <[email protected]> Fixes: f5b763feebe9 ("perf hists browser: Count number of hierarchy entries") Link: http://lkml.kernel.org/r/[email protected] Signed-off-by: Arnaldo Carvalho de Melo <[email protected]> Signed-off-by: Greg Kroah-Hartman <[email protected]> --- 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);
