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-rw-r--r--include/block/block_int.h11
1 files changed, 11 insertions, 0 deletions
diff --git a/include/block/block_int.h b/include/block/block_int.h
index 54df821d61..3a9dda9be7 100644
--- a/include/block/block_int.h
+++ b/include/block/block_int.h
@@ -1289,6 +1289,17 @@ bool bdrv_recurse_can_replace(BlockDriverState *bs,
BlockDriverState *to_replace);
/*
+ * Default implementation for BlockDriver.bdrv_child_perm() that can
+ * be used by block filters and image formats, as long as they use the
+ * child_of_bds child class and set an appropriate BdrvChildRole.
+ */
+void bdrv_default_perms(BlockDriverState *bs, BdrvChild *c,
+ const BdrvChildClass *child_class, BdrvChildRole role,
+ BlockReopenQueue *reopen_queue,
+ uint64_t perm, uint64_t shared,
+ uint64_t *nperm, uint64_t *nshared);
+
+/*
* Default implementation for drivers to pass bdrv_co_block_status() to
* their file.
*/