[PATCH v3 02/35] block: comment graph-modifying function not updating permissions

[Vladimir Sementsov-Ogievskiy <vsementsov@virtuozzo.com>]

Signed-off-by: Vladimir Sementsov-Ogievskiy <vsementsov@virtuozzo.com>
Reviewed-by: Max Reitz <mreitz@redhat.com>
---
 block.c | 7 +++++++
 1 file changed, 7 insertions(+)

diff --git a/block.c b/block.c
index 3033c90666..025df4f02d 100644
--- a/block.c
+++ b/block.c
@@ -2762,6 +2762,8 @@ static TransactionActionDrv bdrv_attach_child_common_drv = {
 
 /*
  * Common part of attaching bdrv child to bs or to blk or to job
+ *
+ * Function doesn't update permissions, caller is responsible for this.
  */
 static int bdrv_attach_child_common(BlockDriverState *child_bs,
                                     const char *child_name,
@@ -2836,6 +2838,7 @@ static int bdrv_attach_child_common(BlockDriverState *child_bs,
     return 0;
 }
 
+/* Function doesn't update permissions, caller is responsible for this. */
 static int bdrv_attach_child_noperm(BlockDriverState *parent_bs,
                                     BlockDriverState *child_bs,
                                     const char *child_name,
@@ -3098,6 +3101,8 @@ static BdrvChildRole bdrv_backing_role(BlockDriverState *bs)
 /*
  * Sets the bs->backing link of a BDS. A new reference is created; callers
  * which don't need their own reference any more must call bdrv_unref().
+ *
+ * Function doesn't update permissions, caller is responsible for this.
  */
 static int bdrv_set_backing_noperm(BlockDriverState *bs,
                                    BlockDriverState *backing_hd,
@@ -4776,6 +4781,8 @@ static TransactionActionDrv bdrv_remove_filter_or_cow_child_drv = {
  * A function to remove backing-chain child of @bs if exists: cow child for
  * format nodes (always .backing) and filter child for filters (may be .file or
  * .backing)
+ *
+ * Function doesn't update permissions, caller is responsible for this.
  */
 static void bdrv_remove_filter_or_cow_child(BlockDriverState *bs,
                                             Transaction *tran)
-- 
2.29.2