btrfs-progs: qgroup assign: can't handle options

[platform/upstream/btrfs-progs.git] / cmds-qgroup.c

diff --git a/cmds-qgroup.c b/cmds-qgroup.c
index 7ae2253..45075a3 100644 (file)
--- a/cmds-qgroup.c
+++ b/cmds-qgroup.c
@@ -32,7 +32,8 @@ static const char * const qgroup_cmd_group_usage[] = {
        NULL
 };
 
-static int _cmd_qgroup_assign(int assign, int argc, char **argv)
+static int _cmd_qgroup_assign(int assign, int argc, char **argv,
+               const char * const *usage_str)
 {
        int ret = 0;
        int fd;
@@ -41,28 +42,33 @@ static int _cmd_qgroup_assign(int assign, int argc, char **argv)
        struct btrfs_ioctl_qgroup_assign_args args;
        DIR *dirstream = NULL;
 
-       while (1) {
-               enum { GETOPT_VAL_RESCAN = 256 };
-               static const struct option long_options[] = {
-                       { "rescan", no_argument, NULL, GETOPT_VAL_RESCAN },
-                       { NULL, 0, NULL, 0 }
-               };
-               int c = getopt_long(argc, argv, "", long_options, NULL);
-
-               if (c < 0)
-                       break;
-               switch (c) {
-               case GETOPT_VAL_RESCAN:
-                       rescan = 1;
-                       break;
-               default:
-                       /* Usage printed by the caller */
-                       return -1;
+       if (assign) {
+               while (1) {
+                       enum { GETOPT_VAL_RESCAN = 256 };
+                       static const struct option long_options[] = {
+                               { "rescan", no_argument, NULL,
+                                       GETOPT_VAL_RESCAN },
+                               { NULL, 0, NULL, 0 }
+                       };
+                       int c = getopt_long(argc, argv, "", long_options, NULL);
+
+                       if (c < 0)
+                               break;
+                       switch (c) {
+                       case GETOPT_VAL_RESCAN:
+                               rescan = 1;
+                               break;
+                       default:
+                               /* Usage printed by the caller */
+                               return -1;
+                       }
                }
+       } else {
+               clean_args_no_options(argc, argv, usage_str);
        }
 
        if (check_argc_exact(argc - optind, 3))
-               return -1;
+               usage(usage_str);
 
        memset(&args, 0, sizeof(args));
        args.assign = assign;
@@ -208,15 +214,7 @@ static const char * const cmd_qgroup_assign_usage[] = {
 
 static int cmd_qgroup_assign(int argc, char **argv)
 {
-       int ret;
-
-       clean_args_no_options(argc, argv, cmd_qgroup_assign_usage);
-
-       ret = _cmd_qgroup_assign(1, argc, argv);
-
-       if (ret < 0)
-               usage(cmd_qgroup_assign_usage);
-       return ret;
+       return _cmd_qgroup_assign(1, argc, argv, cmd_qgroup_assign_usage);
 }
 
 static const char * const cmd_qgroup_remove_usage[] = {
@@ -227,15 +225,7 @@ static const char * const cmd_qgroup_remove_usage[] = {
 
 static int cmd_qgroup_remove(int argc, char **argv)
 {
-       int ret;
-
-       clean_args_no_options(argc, argv, cmd_qgroup_remove_usage);
-
-       ret = _cmd_qgroup_assign(0, argc, argv);
-
-       if (ret < 0)
-               usage(cmd_qgroup_remove_usage);
-       return ret;
+       return _cmd_qgroup_assign(0, argc, argv, cmd_qgroup_remove_usage);
 }
 
 static const char * const cmd_qgroup_create_usage[] = {