[PATCH 3/8] perf hists browser: Inform how to reset the symbol filter

From: Arnaldo Carvalho de Melo
Date: Tue Oct 13 2015 - 15:41:56 EST


From: Arnaldo Carvalho de Melo <acme@xxxxxxxxxx>

When in the hists browser, i.e. in 'perf report' or in 'perf top', it is
possible to press '/' and specify a substring to filter by symbol name.

Clarify how to remove a filter by making the prompt be:

Please enter the name of symbol you want to see.
To remove the filter later, press / + ENTER

Cc: Adrian Hunter <adrian.hunter@xxxxxxxxx>
Cc: Borislav Petkov <bp@xxxxxxx>
Cc: David Ahern <dsahern@xxxxxxxxx>
Cc: Frederic Weisbecker <fweisbec@xxxxxxxxx>
Cc: Jiri Olsa <jolsa@xxxxxxxxxx>
Cc: Namhyung Kim <namhyung@xxxxxxxxxx>
Cc: Stephane Eranian <eranian@xxxxxxxxxx>
Cc: Wang Nan <wangnan0@xxxxxxxxxx>
Link: http://lkml.kernel.org/n/tip-vbq2b0kyufwy6p0ctkfswcoe@xxxxxxxxxxxxxx
Signed-off-by: Arnaldo Carvalho de Melo <acme@xxxxxxxxxx>
---
tools/perf/ui/browsers/hists.c | 3 ++-
1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/tools/perf/ui/browsers/hists.c b/tools/perf/ui/browsers/hists.c
index eea16278d038..772834912c7c 100644
--- a/tools/perf/ui/browsers/hists.c
+++ b/tools/perf/ui/browsers/hists.c
@@ -1889,7 +1889,8 @@ static int perf_evsel__hists_browse(struct perf_evsel *evsel, int nr_events,
continue;
case '/':
if (ui_browser__input_window("Symbol to show",
- "Please enter the name of symbol you want to see",
+ "Please enter the name of symbol you want to see.\n"
+ "To remove the filter later, press / + ENTER.",
buf, "ENTER: OK, ESC: Cancel",
delay_secs * 2) == K_ENTER) {
hists->symbol_filter_str = *buf ? buf : NULL;
--
2.1.0

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