cgclassify: add -h option

this patch adds -h option to cgclassify tool

Signed-off-by: Ivana Hutarova Varekova <varekova@redhat.com>
Signed-off-by: Jan Safranek <jsafrane@redhat.com>

diff --git a/src/tools/cgclassify.c b/src/tools/cgclassify.c
index c27249ffb75f2ef839e48e3ce1cf7e529fac7017..397b7252b8e0278b77eeeb99193972dc30c5844a 100644 (file)
--- a/src/tools/cgclassify.c
+++ b/src/tools/cgclassify.c
@@ -129,8 +129,12 @@ int main(int argc, char *argv[])
        }
 
        memset(cgroup_list, 0, sizeof(cgroup_list));
-       while ((c = getopt_long(argc, argv, "+g:s", longopts, NULL)) > 0) {
+       while ((c = getopt_long(argc, argv, "+g:sh", longopts, NULL)) > 0) {
                switch (c) {
+               case 'h':
+                       usage(0, argv[0]);
+                       exit(0);
+                       break;
                case 'g':
                        ret = parse_cgroup_spec(cgroup_list, optarg,
                                        CG_HIER_MAX);