diff options
| author | Eric Blake <eblake@redhat.com> | 2020-07-06 15:39:53 -0500 |
|---|---|---|
| committer | Kevin Wolf <kwolf@redhat.com> | 2020-07-14 15:18:59 +0200 |
| commit | e54ee1b385a9d084b4052b6db7391ea2fd799fa8 (patch) | |
| tree | d6e366c994426adc6f217faac79b22c3dde30507 /blockdev.c | |
| parent | b66ff2c29817f5efa18f5120fd6f089fbf59a933 (diff) | |
block: Add support to warn on backing file change without format
For now, this is a mechanical addition; all callers pass false. But
the next patch will use it to improve 'qemu-img rebase -u' when
selecting a backing file with no format.
Signed-off-by: Eric Blake <eblake@redhat.com>
Reviewed-by: Peter Krempa <pkrempa@redhat.com>
Reviewed-by: Ján Tomko <jtomko@redhat.com>
Message-Id: <20200706203954.341758-10-eblake@redhat.com>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
Diffstat (limited to 'blockdev.c')
| -rw-r--r-- | blockdev.c | 3 |
1 files changed, 2 insertions, 1 deletions
diff --git a/blockdev.c b/blockdev.c index 59b0b8ffaf..3848a9c8ab 100644 --- a/blockdev.c +++ b/blockdev.c @@ -3416,7 +3416,8 @@ void qmp_change_backing_file(const char *device, } ret = bdrv_change_backing_file(image_bs, backing_file, - image_bs->drv ? image_bs->drv->format_name : ""); + image_bs->drv ? image_bs->drv->format_name : "", + false); if (ret < 0) { error_setg_errno(errp, -ret, "Could not change backing file to '%s'", |