Re: [PATCH v4 1/2] block/blkio: use qemu_open() to support fd passing for virtio-blk

[Stefan Hajnoczi <stefanha@redhat.com>]

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On Fri, May 26, 2023 at 05:03:03PM +0200, Stefano Garzarella wrote:
> Some virtio-blk drivers (e.g. virtio-blk-vhost-vdpa) supports the fd
> passing. Let's expose this to the user, so the management layer
> can pass the file descriptor of an already opened path.
> 
> If the libblkio virtio-blk driver supports fd passing, let's always
> use qemu_open() to open the `path`, so we can handle fd passing
> from the management layer through the "/dev/fdset/N" special path.
> 
> Signed-off-by: Stefano Garzarella <sgarzare@redhat.com>
> ---
> 
> Notes:
>     v4:
>     - modified commit description
>     
>     v3:
>     - use qemu_open() on `path` to simplify libvirt code [Jonathon]
> 
>  block/blkio.c | 53 ++++++++++++++++++++++++++++++++++++++++++---------
>  1 file changed, 44 insertions(+), 9 deletions(-)

Reviewed-by: Stefan Hajnoczi <stefanha@redhat.com>

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