diff options
Diffstat (limited to 'block/qcow2.c')
| -rw-r--r-- | block/qcow2.c | 7 |
1 files changed, 6 insertions, 1 deletions
diff --git a/block/qcow2.c b/block/qcow2.c index ea33673..fadf342 100644 --- a/block/qcow2.c +++ b/block/qcow2.c @@ -3627,7 +3627,7 @@ qcow2_co_create(BlockdevCreateOptions *create_options, Error **errp) } ret = bdrv_change_backing_file(blk_bs(blk), qcow2_opts->backing_file, - backing_format); + backing_format, false); if (ret < 0) { error_setg_errno(errp, -ret, "Could not assign backing file '%s' " "with format '%s'", qcow2_opts->backing_file, @@ -5511,6 +5511,11 @@ static int qcow2_amend_options(BlockDriverState *bs, QemuOpts *opts, } if (backing_file || backing_format) { + if (g_strcmp0(backing_file, s->image_backing_file) || + g_strcmp0(backing_format, s->image_backing_format)) { + warn_report("Deprecated use of amend to alter the backing file; " + "use qemu-img rebase instead"); + } ret = qcow2_change_backing_file(bs, backing_file ?: s->image_backing_file, backing_format ?: s->image_backing_format); |