[PATCH 1 of 2 RFC] xl: parse extra_config options even when restoring

[Dario Faggioli <raistlin@linux.it>]

In preparation for the next patch. Of course, if no extra_config options
are provided by the caller, this is harmless and cause no functional
changes.

Signed-off-by: Dario Faggioli <dario.faggioli@citrix.com>

diff --git a/tools/libxl/xl_cmdimpl.c b/tools/libxl/xl_cmdimpl.c
--- a/tools/libxl/xl_cmdimpl.c
+++ b/tools/libxl/xl_cmdimpl.c
@@ -1706,21 +1706,6 @@ static int create_domain(struct domain_c
             if (ret) { fprintf(stderr, "Failed to read config file: %s: %s\n",
                                config_file, strerror(errno)); return ERROR_FAIL; }
         }
-        if (!restoring && extra_config && strlen(extra_config)) {
-            if (config_len > INT_MAX - (strlen(extra_config) + 2 + 1)) {
-                fprintf(stderr, "Failed to attach extra configration\n");
-                return ERROR_FAIL;
-            }
-            /* allocate space for the extra config plus two EOLs plus \0 */
-            config_data = realloc(config_data, config_len
-                + strlen(extra_config) + 2 + 1);
-            if (!config_data) {
-                fprintf(stderr, "Failed to realloc config_data\n");
-                return ERROR_FAIL;
-            }
-            config_len += sprintf(config_data + config_len, "\n%s\n",
-                extra_config);
-        }
         config_source=config_file;
     } else {
         if (!config_data) {
@@ -1731,6 +1716,22 @@ static int create_domain(struct domain_c
         config_source = "<saved>";
     }
 
+    if (extra_config && strlen(extra_config)) {
+        if (config_len > INT_MAX - (strlen(extra_config) + 2 + 1)) {
+            fprintf(stderr, "Failed to attach extra configration\n");
+            return ERROR_FAIL;
+        }
+        /* allocate space for the extra config plus two EOLs plus \0 */
+        config_data = realloc(config_data, config_len
+            + strlen(extra_config) + 2 + 1);
+        if (!config_data) {
+            fprintf(stderr, "Failed to realloc config_data\n");
+            return ERROR_FAIL;
+        }
+        config_len += sprintf(config_data + config_len, "\n%s\n",
+            extra_config);
+    }
+
     if (!dom_info->quiet)
         printf("Parsing config from %s\n", config_source);