qcow2: Add list of bitmaps to ImageInfoSpecificQCow2
In the 'Format specific information' section of the 'qemu-img info'
command output, the supplemental information about existing QCOW2
bitmaps will be shown, such as a bitmap name, flags and granularity:
image: /vz/vmprivate/VM1/harddisk.hdd
file format: qcow2
virtual size: 64G (68719476736 bytes)
disk size: 3.0M
cluster_size: 1048576
Format specific information:
compat: 1.1
lazy refcounts: true
bitmaps:
[0]:
flags:
[0]: in-use
[1]: auto
name: back-up1
granularity: 65536
[1]:
flags:
[0]: in-use
[1]: auto
name: back-up2
granularity: 65536
refcount bits: 16
corrupt: false
Signed-off-by: Andrey Shinkevich <andrey.shinkevich@virtuozzo.com>
Reviewed-by: Eric Blake <eblake@redhat.com>
Reviewed-by: Vladimir Sementsov-Ogievskiy <vsementsov@virtuozzo.com>
Message-Id: <1549638368-530182-3-git-send-email-andrey.shinkevich@virtuozzo.com>
Signed-off-by: Eric Blake <eblake@redhat.com>
diff --git a/block/qcow2.c b/block/qcow2.c
index bcb80d0..65a54c9 100644
--- a/block/qcow2.c
+++ b/block/qcow2.c
@@ -4387,7 +4387,7 @@
spec_info = g_new(ImageInfoSpecific, 1);
*spec_info = (ImageInfoSpecific){
.type = IMAGE_INFO_SPECIFIC_KIND_QCOW2,
- .u.qcow2.data = g_new(ImageInfoSpecificQCow2, 1),
+ .u.qcow2.data = g_new0(ImageInfoSpecificQCow2, 1),
};
if (s->qcow_version == 2) {
*spec_info->u.qcow2.data = (ImageInfoSpecificQCow2){
@@ -4395,6 +4395,13 @@
.refcount_bits = s->refcount_bits,
};
} else if (s->qcow_version == 3) {
+ Qcow2BitmapInfoList *bitmaps;
+ bitmaps = qcow2_get_bitmap_info_list(bs, &local_err);
+ if (local_err) {
+ error_propagate(errp, local_err);
+ qapi_free_ImageInfoSpecific(spec_info);
+ return NULL;
+ }
*spec_info->u.qcow2.data = (ImageInfoSpecificQCow2){
.compat = g_strdup("1.1"),
.lazy_refcounts = s->compatible_features &
@@ -4404,6 +4411,8 @@
QCOW2_INCOMPAT_CORRUPT,
.has_corrupt = true,
.refcount_bits = s->refcount_bits,
+ .has_bitmaps = !!bitmaps,
+ .bitmaps = bitmaps,
};
} else {
/* if this assertion fails, this probably means a new version was
