perf lock: Document valid sort keys
Cc: Ingo Molnar <mingo@elte.hu>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
LKML-Reference: <20110222205312.GA18474@joi.lan>
Signed-off-by: Marcin Slusarz <marcin.slusarz@gmail.com>
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
diff --git a/tools/perf/builtin-lock.c b/tools/perf/builtin-lock.c
index e00d938..2e93f99 100644
--- a/tools/perf/builtin-lock.c
+++ b/tools/perf/builtin-lock.c
@@ -893,7 +893,7 @@
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()
};