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| author |   Arnaldo Carvalho de Melo <acme@redhat.com> | 2018-05-17 16:31:32 -0300 |
|---|---|---|
| committer | Arnaldo Carvalho de Melo <acme@redhat.com> | 2018-05-17 16:31:32 -0300 |
| commit | 029c75e5cf166f9c04744d81c798f54a44a8417c (patch) | |
| tree | 7274bd2df51402c0c310bd56146611cb9635bc4d /tools/perf/perf.c | |
| parent | perf tools: Read the cache line size lazily (diff) | |
| download | linux-dev-029c75e5cf166f9c04744d81c798f54a44a8417c.tar.xz linux-dev-029c75e5cf166f9c04744d81c798f54a44a8417c.zip | |
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>
Diffstat (limited to 'tools/perf/perf.c')
| -rw-r--r-- | tools/perf/perf.c | 7 |
1 files changed, 0 insertions, 7 deletions
diff --git a/tools/perf/perf.c b/tools/perf/perf.c index cefd8f74630c..51c81509a315 100644 --- a/tools/perf/perf.c +++ b/tools/perf/perf.c @@ -426,7 +426,6 @@ int main(int argc, const char **argv) int err; const char *cmd; char sbuf[STRERR_BUFSIZE]; - int value; /* libsubcmd init */ exec_cmd_init("perf", PREFIX, PERF_EXEC_PATH, EXEC_PATH_ENVIRONMENT); @@ -435,12 +434,6 @@ int main(int argc, const char **argv) /* The page_size is placed in util object. */ page_size = sysconf(_SC_PAGE_SIZE); - if (sysctl__read_int("kernel/perf_event_max_stack", &value) == 0) - sysctl_perf_event_max_stack = value; - - if (sysctl__read_int("kernel/perf_event_max_contexts_per_stack", &value) == 0) - sysctl_perf_event_max_contexts_per_stack = value; - cmd = extract_argv0_path(argv[0]); if (!cmd) cmd = "perf-help"; |