block: Request child permissions in format drivers

This makes use of the .bdrv_child_perm() implementation for formats that
we just added. All format drivers expose the permissions they actually
need nows, so that they can be set accordingly and updated when parents
are attached or detached.

The only format not included here is raw, which was already converted
with the other filter drivers.

Signed-off-by: Kevin Wolf <kwolf@redhat.com>
Reviewed-by: Max Reitz <mreitz@redhat.com>
Acked-by: Fam Zheng <famz@redhat.com>

1 files changed, 1 insertions, 0 deletions

diff --git a/block/dmg.c b/block/dmg.c
index 8e387cdfe5..a7d25fc47b 100644
--- a/block/dmg.c
+++ b/block/dmg.c
@@ -697,6 +697,7 @@ static BlockDriver bdrv_dmg = {
     .bdrv_probe     = dmg_probe,
     .bdrv_open      = dmg_open,
     .bdrv_refresh_limits = dmg_refresh_limits,
+    .bdrv_child_perm     = bdrv_format_default_perms,
     .bdrv_co_preadv = dmg_co_preadv,
     .bdrv_close     = dmg_close,
 };