Re: [Qemu-block] [Qemu-devel] [PATCH v3] qemu-img: change opening method for the output in dd

[Reda Sallahi]

On Tue, Aug 16, 2016 at 12:09:06PM +0100, Stefan Hajnoczi wrote:
> On Mon, Aug 15, 2016 at 02:11:49PM +0200, Reda Sallahi wrote:
> > +    blk2 = blk_new_open(image_opts ? NULL : out.filename,
> > +                        NULL, qoptions, BDRV_O_RDWR, NULL);
> 
> This code duplicates a subset of img_open().  Why can't you use
> img_open() or at least img_open_opts()/img_open_file()?

If I used img_open() here (or img_open_opts()/img_open_file() for that
matter) it would have written on stderr that the file couldn't be opened
here even though in this case it's not error if we can create the output
image and open it later on.

-- 
Reda