block: Request real permissions in bdrv_attach_child()

[mirror_qemu.git] / block.c

diff --git a/block.c b/block.c
index 52c1f280dcefff92ce3195a76ccc1df0067ea7e0..bed236747a30e917499ebaaa03a97304df00b9d7 100644 (file)
--- a/block.c
+++ b/block.c
@@ -1680,10 +1680,16 @@ BdrvChild *bdrv_attach_child(BlockDriverState *parent_bs,
                              Error **errp)
 {
     BdrvChild *child;
+    uint64_t perm, shared_perm;
+
+    bdrv_get_cumulative_perm(parent_bs, &perm, &shared_perm);
+
+    assert(parent_bs->drv);
+    parent_bs->drv->bdrv_child_perm(parent_bs, NULL, child_role,
+                                    perm, shared_perm, &perm, &shared_perm);
 
-    /* FIXME Use real permissions */
     child = bdrv_root_attach_child(child_bs, child_name, child_role,
-                                   0, BLK_PERM_ALL, parent_bs, errp);
+                                   perm, shared_perm, parent_bs, errp);
     if (child == NULL) {
         return NULL;
     }