commit 6eea90eba47534d57f05d16c1b7d695574e2395d
author Stefan Weil <weil@mail.berlios.de> Fri Aug 14 21:50:02 2009 +0200
committer Anthony Liguori <aliguori@us.ibm.com> Thu Aug 27 19:33:15 2009 -0500
tree dfc5adfd7b06bf6a22a2aaa8f251097922e04b9f
parent d1cd4bf41906980434bee1c6656e8aeb9a132df3

block/vdi.c: Fix several bugs

* The code for option '-static' was wrong, so image creation
  always created static images.

* Static images created with qemu-img did not set header entry
  blocks_allocated.

* The size of the block map must be rounded to the next multiple
  of SECTOR_SIZE, otherwise the block map is only read partially
  for block map sizes which are not a multiple of SECTOR_SIZE.

Signed-off-by: Stefan Weil <weil@mail.berlios.de>
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>

block/vdi.c

diff --git a/block/vdi.c b/block/vdi.c
index 4ca8dcb..c9c8890 100644
--- a/block/vdi.c
+++ b/block/vdi.c
@@ -437,9 +437,9 @@
     s->header = header;
 
     bmap_size = header.blocks_in_image * sizeof(uint32_t);
-    s->bmap = qemu_malloc(bmap_size);
-    if (bdrv_read(s->hd, s->bmap_sector,
-                  (uint8_t *)s->bmap, bmap_size / SECTOR_SIZE) < 0) {
+    bmap_size = (bmap_size + SECTOR_SIZE - 1) / SECTOR_SIZE;
+    s->bmap = qemu_malloc(bmap_size * SECTOR_SIZE);
+    if (bdrv_read(s->hd, s->bmap_sector, (uint8_t *)s->bmap, bmap_size) < 0) {
         goto fail_free_bmap;
     }
 
@@ -817,7 +817,9 @@
 #endif
 #if defined(CONFIG_VDI_STATIC_IMAGE)
         } else if (!strcmp(options->name, BLOCK_OPT_STATIC)) {
-            image_type = VDI_TYPE_STATIC;
+            if (options->value.n) {
+                image_type = VDI_TYPE_STATIC;
+            }
 #endif
         }
         options++;
@@ -845,6 +847,9 @@
     header.disk_size = bytes;
     header.block_size = block_size;
     header.blocks_in_image = blocks;
+    if (image_type == VDI_TYPE_STATIC) {
+        header.blocks_allocated = blocks;
+    }
     uuid_generate(header.uuid_image);
     uuid_generate(header.uuid_last_snap);
     /* There is no need to set header.uuid_link or header.uuid_parent here. */