qemu-img: add image fragmentation statistics

[qemu.git] / qemu-img.c

diff --git a/qemu-img.c b/qemu-img.c
index c4bcf41e15707cd6c839f21494452cf09bef2989..4de48bac580aef67b44dac4fe04fa14d570ded3a 100644 (file)
--- a/qemu-img.c
+++ b/qemu-img.c
@@ -428,6 +428,13 @@ static int img_check(int argc, char **argv)
         }
     }
 
+    if (result.bfi.total_clusters != 0 && result.bfi.allocated_clusters != 0) {
+        printf("%" PRId64 "/%" PRId64 "= %0.2f%% allocated, %0.2f%% fragmented\n",
+        result.bfi.allocated_clusters, result.bfi.total_clusters,
+        result.bfi.allocated_clusters * 100.0 / result.bfi.total_clusters,
+        result.bfi.fragmented_clusters * 100.0 / result.bfi.allocated_clusters);
+    }
+
     bdrv_delete(bs);
 
     if (ret < 0 || result.check_errors) {
@@ -716,7 +723,7 @@ static int img_convert(int argc, char **argv)
         ret = -1;
         goto out;
     }
-        
+
     qemu_progress_init(progress, 2.0);
     qemu_progress_print(0, 100);
 
@@ -1614,7 +1621,7 @@ static int img_resize(int argc, char **argv)
         printf("Image resized.\n");
         break;
     case -ENOTSUP:
-        error_report("This image format does not support resize");
+        error_report("This image does not support resize");
         break;
     case -EACCES:
         error_report("Image is read-only");
@@ -1655,6 +1662,8 @@ int main(int argc, char **argv)
     cmdname = argv[1];
     argc--; argv++;
 
+    qemu_init_main_loop();
+
     /* find the command */
     for(cmd = img_cmds; cmd->name != NULL; cmd++) {
         if (!strcmp(cmdname, cmd->name)) {