Setting the `fd` property fails with virtio-blk-* libblkio drivers that do not support fd passing since https://gitlab.com/libblkio/libblkio/-/merge_requests/208.
Getting the `fd` property, on the other hand, always succeeds for virtio-blk-* libblkio drivers even when they don't support fd passing. This patch switches to setting the `fd` property because it is a better mechanism for probing fd passing support than getting the `fd` property. Signed-off-by: Stefano Garzarella <sgarz...@redhat.com> --- Notes: v2: - changed commit description [Stefan] block/blkio.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/block/blkio.c b/block/blkio.c index 72b46d61fd..8e7ce42c79 100644 --- a/block/blkio.c +++ b/block/blkio.c @@ -690,7 +690,7 @@ static int blkio_virtio_blk_connect(BlockDriverState *bs, QDict *options, return -EINVAL; } - if (blkio_get_int(s->blkio, "fd", &fd) == 0) { + if (blkio_set_int(s->blkio, "fd", -1) == 0) { fd_supported = true; } -- 2.41.0