block: Add PreallocMode to blk_truncate()

blk_truncate() itself will pass that value to bdrv_truncate(), and all
callers of blk_truncate() just set the parameter to PREALLOC_MODE_OFF
for now.

Signed-off-by: Max Reitz <mreitz@redhat.com>
Reviewed-by: Stefan Hajnoczi <stefanha@redhat.com>
Message-id: 20170613202107.10125-4-mreitz@redhat.com
Signed-off-by: Max Reitz <mreitz@redhat.com>

1 files changed, 1 insertions, 1 deletions

diff --git a/qemu-img.c b/qemu-img.c
index 930ae88..1b74195 100644
--- a/qemu-img.c
+++ b/qemu-img.c
@@ -3537,7 +3537,7 @@ static int img_resize(int argc, char **argv)
         goto out;
     }
 
-    ret = blk_truncate(blk, total_size, &err);
+    ret = blk_truncate(blk, total_size, PREALLOC_MODE_OFF, &err);
     if (!ret) {
         qprintf(quiet, "Image resized.\n");
     } else {