@@ -744,6 +744,14 @@ static int qcow2_open(BlockDriverState *bs, QDict *options, int flags,
overlap_check_template & (1 << i)) << i;
}
+ if (s->overlap_check) {
+ /* TODO: Let the user override this default */
+ ret = qcow2_create_empty_metadata_list(bs, 65536, errp);
+ if (ret < 0) {
+ goto fail;
+ }
+ }
+
s->l2_bits = s->cluster_bits - 3; /* L2 is always one cluster */
s->l2_size = 1 << s->l2_bits;
/* 2^(s->refcount_order - 3) is the refcount width in bytes */
@@ -1007,6 +1015,7 @@ static int qcow2_open(BlockDriverState *bs, QDict *options, int flags,
}
g_free(s->cluster_cache);
qemu_vfree(s->cluster_data);
+ qcow2_metadata_list_destroy(bs);
return ret;
}
@@ -1458,6 +1467,8 @@ static void qcow2_close(BlockDriverState *bs)
qemu_vfree(s->cluster_data);
qcow2_refcount_close(bs);
qcow2_free_snapshots(bs);
+
+ qcow2_metadata_list_destroy(bs);
}
static void qcow2_invalidate_cache(BlockDriverState *bs, Error **errp)
Create and destroy the metadata list on creation and destruction of a qcow2 BDS, respectively. Skip creation if no overlap checks should be performed. Signed-off-by: Max Reitz <mreitz@redhat.com> --- block/qcow2.c | 11 +++++++++++ 1 file changed, 11 insertions(+)