[PATCH 1/2] block: Introduce 'bdrv_reopen_commit_post' step

[Peter Krempa]

Add another step in the reopen process where driver can execute code
after permission changes are comitted.

Signed-off-by: Peter Krempa <address@hidden>
---
 block.c                   | 9 +++++++++
 include/block/block_int.h | 1 +
 2 files changed, 10 insertions(+)

diff --git a/block.c b/block.c
index 1bdb9c679d..a82e53d4cc 100644
--- a/block.c
+++ b/block.c
@@ -3694,6 +3694,15 @@ cleanup_perm:
             }
         }
     }
+
+    if (ret == 0) {
+        QTAILQ_FOREACH_REVERSE(bs_entry, bs_queue, entry) {
+            BlockDriverState *bs = bs_entry->state.bs;
+
+            if (bs->drv->bdrv_reopen_commit_post)
+                bs->drv->bdrv_reopen_commit_post(&bs_entry->state);
+        }
+    }
 cleanup:
     QTAILQ_FOREACH_SAFE(bs_entry, bs_queue, entry, next) {
         if (ret) {
diff --git a/include/block/block_int.h b/include/block/block_int.h
index 6f9fd5e20e..f422c0bff0 100644
--- a/include/block/block_int.h
+++ b/include/block/block_int.h
@@ -122,6 +122,7 @@ struct BlockDriver {
     int (*bdrv_reopen_prepare)(BDRVReopenState *reopen_state,
                                BlockReopenQueue *queue, Error **errp);
     void (*bdrv_reopen_commit)(BDRVReopenState *reopen_state);
+    void (*bdrv_reopen_commit_post)(BDRVReopenState *reopen_state);
     void (*bdrv_reopen_abort)(BDRVReopenState *reopen_state);
     void (*bdrv_join_options)(QDict *options, QDict *old_options);

-- 
2.24.1