perf tools: No need to unconditionally read the max_stack sysctls
Let tools that need to have those variables with the sysctl current
values use a function that will read them.
Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: David Ahern <dsahern@gmail.com>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Wang Nan <wangnan0@huawei.com>
Link: https://lkml.kernel.org/n/tip-1ljj3oeo5kpt2n1icfd9vowe@git.kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
diff --git a/tools/perf/builtin-top.c b/tools/perf/builtin-top.c
index 3c061c5..7a349fc 100644
--- a/tools/perf/builtin-top.c
+++ b/tools/perf/builtin-top.c
@@ -1264,7 +1264,7 @@ int cmd_top(int argc, const char **argv)
.proc_map_timeout = 500,
.overwrite = 1,
},
- .max_stack = sysctl_perf_event_max_stack,
+ .max_stack = sysctl__max_stack(),
.sym_pcnt_filter = 5,
.nr_threads_synthesize = UINT_MAX,
};