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authorEric Blake <eblake@redhat.com>2020-07-06 15:39:53 -0500
committerKevin Wolf <kwolf@redhat.com>2020-07-14 15:18:59 +0200
commite54ee1b385a9d084b4052b6db7391ea2fd799fa8 (patch)
treed6e366c994426adc6f217faac79b22c3dde30507 /block/qcow2.c
parentb66ff2c29817f5efa18f5120fd6f089fbf59a933 (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 'block/qcow2.c')
-rw-r--r--block/qcow2.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/block/qcow2.c b/block/qcow2.c
index f3fc2707cd..fadf3422f8 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,