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authorVladimir Sementsov-Ogievskiy <vsementsov@virtuozzo.com>2018-02-02 19:07:52 +0300
committerMax Reitz <mreitz@redhat.com>2018-02-13 16:59:58 +0100
commit3e99da5e76a4e834e457cbef774ed5f83589c5e7 (patch)
tree770bc544ffdea5e846f04139072eab2e1266c4f4 /blockdev.c
parent74f1eabf9cbdd168f0aceae97a0f6645d1ce7ebd (diff)
downloadfocaccia-qemu-3e99da5e76a4e834e457cbef774ed5f83589c5e7.tar.gz
focaccia-qemu-3e99da5e76a4e834e457cbef774ed5f83589c5e7.zip
block: maintain persistent disabled bitmaps
To maintain load/store disabled bitmap there is new approach:

 - deprecate @autoload flag of block-dirty-bitmap-add, make it ignored
 - store enabled bitmaps as "auto" to qcow2
 - store disabled bitmaps without "auto" flag to qcow2
 - on qcow2 open load "auto" bitmaps as enabled and others
   as disabled (except in_use bitmaps)

Also, adjust iotests 165 and 176 appropriately.

Signed-off-by: Vladimir Sementsov-Ogievskiy <vsementsov@virtuozzo.com>
Message-id: 20180202160752.143796-1-vsementsov@virtuozzo.com
Signed-off-by: Max Reitz <mreitz@redhat.com>
Diffstat (limited to 'blockdev.c')
-rw-r--r--blockdev.c10
1 files changed, 2 insertions, 8 deletions
diff --git a/blockdev.c b/blockdev.c
index 7423c5317b..3fb1ca803c 100644
--- a/blockdev.c
+++ b/blockdev.c
@@ -2825,14 +2825,9 @@ void qmp_block_dirty_bitmap_add(const char *node, const char *name,
     if (!has_persistent) {
         persistent = false;
     }
-    if (!has_autoload) {
-        autoload = false;
-    }
 
-    if (has_autoload && !persistent) {
-        error_setg(errp, "Autoload flag must be used only for persistent "
-                         "bitmaps");
-        return;
+    if (has_autoload) {
+        warn_report("Autoload option is deprecated and its value is ignored");
     }
 
     if (persistent &&
@@ -2847,7 +2842,6 @@ void qmp_block_dirty_bitmap_add(const char *node, const char *name,
     }
 
     bdrv_dirty_bitmap_set_persistance(bitmap, persistent);
-    bdrv_dirty_bitmap_set_autoload(bitmap, autoload);
 }
 
 void qmp_block_dirty_bitmap_remove(const char *node, const char *name,