Merge remote-tracking branch 'remotes/kevin/tags/for-upstream' into staging

Block layer patches:

- qemu-img convert: Don't pre-zero images (removes nowadays
  counterproductive optimisation)
- qemu-storage-daemon: Fix object-del, cleaner shutdown
- vvfat: Check that the guest doesn't escape the given host directory
  with read-write vvfat drives
- vvfat: Fix crash by out-of-bounds array writes for read-write drives
- iotests fixes

# gpg: Signature made Fri 03 Jul 2020 10:20:46 BST
# gpg:                using RSA key DC3DEB159A9AF95D3D7456FE7F09B272C88F2FD6
# gpg:                issuer "kwolf@redhat.com"
# gpg: Good signature from "Kevin Wolf <kwolf@redhat.com>" [full]
# Primary key fingerprint: DC3D EB15 9A9A F95D 3D74  56FE 7F09 B272 C88F 2FD6

* remotes/kevin/tags/for-upstream:
  iotests: Fix 051 output after qdev_init_nofail() removal
  iotests.py: Do not wait() before communicate()
  vvfat: Fix array_remove_slice()
  vvfat: Check that updated filenames are valid
  qemu-storage-daemon: add missing cleanup calls
  qemu-storage-daemon: remember to add qemu_object_opts
  qemu-img convert: Don't pre-zero images

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>

1 files changed, 0 insertions, 9 deletions

diff --git a/qemu-img.c b/qemu-img.c
index d7e846e607..bdb9f6aa46 100644
--- a/qemu-img.c
+++ b/qemu-img.c
@@ -2084,15 +2084,6 @@ static int convert_do_copy(ImgConvertState *s)
         s->has_zero_init = bdrv_has_zero_init(blk_bs(s->target));
     }
 
-    if (!s->has_zero_init && !s->target_has_backing &&
-        bdrv_can_write_zeroes_with_unmap(blk_bs(s->target)))
-    {
-        ret = blk_make_zero(s->target, BDRV_REQ_MAY_UNMAP | BDRV_REQ_NO_FALLBACK);
-        if (ret == 0) {
-            s->has_zero_init = true;
-        }
-    }
-
     /* Allocate buffer for copied data. For compressed images, only one cluster
      * can be copied at a time. */
     if (s->compressed) {