[PATCH] perf lock: show valid sort keys in usage

[Marcin Slusarz]

Signed-off-by: Marcin Slusarz <marcin.slusarz@xxxxxxxxx>
---
 tools/perf/builtin-lock.c |    2 +-
 1 files changed, 1 insertions(+), 1 deletions(-)

diff --git a/tools/perf/builtin-lock.c b/tools/perf/builtin-lock.c
index 2b36def..0305a40 100644
--- a/tools/perf/builtin-lock.c
+++ b/tools/perf/builtin-lock.c
@@ -893,7 +893,7 @@ static const char * const report_usage[] = {
 
 static const struct option report_options[] = {
 	OPT_STRING('k', "key", &sort_key, "acquired",
-		    "key for sorting"),
+		    "key for sorting (acquired / contended / wait_total / wait_max / wait_min)"),
 	/* TODO: type */
 	OPT_END()
 };
-- 
1.7.4.rc3

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