perf trace: Fix --filter-pids OPTION description

Cut't'paste error, fix it.

Reported-by: David Ahern <dsahern@gmail.com>
Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: Borislav Petkov <bp@suse.de>
Cc: Don Zickus <dzickus@redhat.com>
Cc: Frederic Weisbecker <fweisbec@gmail.com>
Cc: Jiri Olsa <jolsa@redhat.com>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Stephane Eranian <eranian@google.com>
Link: http://lkml.kernel.org/n/tip-26abqh0wg9dci3fqcppyrpxy@git.kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>

diff --git a/tools/perf/builtin-trace.c b/tools/perf/builtin-trace.c
index e124741..23fb081 100644 (file)
--- a/tools/perf/builtin-trace.c
+++ b/tools/perf/builtin-trace.c
@@ -2668,8 +2668,8 @@ int cmd_trace(int argc, const char **argv, const char *prefix __maybe_unused)
                    "trace events on existing process id"),
        OPT_STRING('t', "tid", &trace.opts.target.tid, "tid",
                    "trace events on existing thread id"),
-       OPT_CALLBACK(0, "filter-pids", &trace, "float",
-                    "show only events with duration > N.M ms", trace__set_filter_pids),
+       OPT_CALLBACK(0, "filter-pids", &trace, "CSV list of pids",
+                    "pids to filter (by the kernel)", trace__set_filter_pids),
        OPT_BOOLEAN('a', "all-cpus", &trace.opts.target.system_wide,
                    "system-wide collection from all CPUs"),
        OPT_STRING('C', "cpu", &trace.opts.target.cpu_list, "cpu",