[Qemu-block] [PATCH v6 12/21] qmp: Add dirty bitmap status field in query-block

[John Snow]

Add the "frozen" status booleans, to inform clients
when a bitmap is occupied doing a task.

Signed-off-by: Fam Zheng <f...@redhat.com>
Signed-off-by: John Snow <js...@redhat.com>
Reviewed-by: Max Reitz <mre...@redhat.com>
Reviewed-by: Stefan Hajnoczi <stefa...@redhat.com>
Reviewed-by: Eric Blake <ebl...@redhat.com>
---
 block.c              | 1 +
 qapi/block-core.json | 5 ++++-
 2 files changed, 5 insertions(+), 1 deletion(-)

diff --git a/block.c b/block.c
index 679991b..ca73a6a 100644
--- a/block.c
+++ b/block.c
@@ -5633,6 +5633,7 @@ BlockDirtyInfoList 
*bdrv_query_dirty_bitmaps(BlockDriverState *bs)
         info->granularity = bdrv_dirty_bitmap_granularity(bm);
         info->has_name = !!bm->name;
         info->name = g_strdup(bm->name);
+        info->frozen = bdrv_dirty_bitmap_frozen(bm);
         entry->value = info;
         *plist = entry;
         plist = &entry->next;
diff --git a/qapi/block-core.json b/qapi/block-core.json
index fc9ca04..cae995b 100644
--- a/qapi/block-core.json
+++ b/qapi/block-core.json
@@ -336,10 +336,13 @@
 #
 # @granularity: granularity of the dirty bitmap in bytes (since 1.4)
 #
+# @frozen: whether the dirty bitmap is frozen (Since 2.4)
+#
 # Since: 1.3
 ##
 { 'type': 'BlockDirtyInfo',
-  'data': {'*name': 'str', 'count': 'int', 'granularity': 'uint32'} }
+  'data': {'*name': 'str', 'count': 'int', 'granularity': 'uint32',
+           'frozen': 'bool'} }
 
 ##
 # @BlockInfo:
-- 
2.1.0