cptofs: Swap --kernel-parameters opt to --mb

To match the lklfuse option.

Author: jsoo1

tools/lkl/cptofs.c

@@ -31,7 +31,8 @@ static struct argp_option options[] = {
 	{"owner", 'o', "int", 0, "owner of the destination files"},
 	{"group", 'g', "int", 0, "group of the destination files"},
 	{"selinux", 's', "string", 0, "selinux attributes for destination"},
-	{"kernel-parameters", 'k', "string", 0, "kernel parameters when booting linux"},
+	{"mb", 'm', "int", 0,
+     "amount of memory to allocate in MB (default: 100)"},
 	{0},
 };
 
@@ -45,7 +46,7 @@ static struct cl_args {
 	const char *selinux;
 	uid_t owner;
 	gid_t group;
-    const char *kernel_parameters;
+    const int memory;
 } cla;
 
 static int cptofs;
@@ -76,8 +77,8 @@ static error_t parse_opt(int key, char *arg, struct argp_state *state)
 	case 'g':
 		cla->group = atoi(arg);
 		break;
-	case 'k':
-        cla->kernel_parameters = arg;
+	case 'm':
+        cla->memory = atoi(arg);
         break;
 	case ARGP_KEY_ARG:
 		// Capture all remaining arguments in our paths array and stop
@@ -629,10 +630,11 @@ int main(int argc, char **argv)
 	int i;
 	char mpoint[32];
 	unsigned int disk_id;
+    char memory[16];
 
 	cla.owner = (uid_t)-1;
 	cla.group = (gid_t)-1;
-    cla.kernel_parameters = "mem=100M";
+    cla.memory = 100;
 
 	if (strstr(argv[0], "cptofs")) {
 		cptofs = 1;
@@ -670,7 +672,8 @@ int main(int argc, char **argv)
 	}
 	disk_id = ret;
 
-	ret = lkl_start_kernel(cla.kernel_parameters);
+    snprintf(memory, sizeof(memory), "mem=%dM", cla.memory);
+	ret = lkl_start_kernel(memory);
 	if (ret < 0) {
 		fprintf(stderr, "failed to start kernel: %s\n",
 			lkl_strerror(ret));