linux-kernel - Re: [PATCH 15/24] compat_ioctl: scsi: move ioctl handling into drivers

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Date:   Thu, 12 Dec 2019 09:35:22 -0700
From:   Jens Axboe <axboe@...nel.dk>
To:     Christoph Hellwig <hch@...radead.org>,
        Paolo Bonzini <pbonzini@...hat.com>
Cc:     "Michael S. Tsirkin" <mst@...hat.com>,
        Arnd Bergmann <arnd@...db.de>,
        "James E.J. Bottomley" <jejb@...ux.ibm.com>,
        "Martin K. Petersen" <martin.petersen@...cle.com>,
        Alexander Viro <viro@...iv.linux.org.uk>,
        Jason Wang <jasowang@...hat.com>,
        Doug Gilbert <dgilbert@...erlog.com>,
        Kai Mäkisara <Kai.Makisara@...umbus.fi>,
        linux-kernel@...r.kernel.org, y2038@...ts.linaro.org,
        Stefan Hajnoczi <stefanha@...hat.com>,
        Bart Van Assche <bvanassche@....org>,
        Hannes Reinecke <hare@...e.com>,
        Damien Le Moal <damien.lemoal@....com>,
        John Garry <john.garry@...wei.com>,
        virtualization@...ts.linux-foundation.org,
        linux-block@...r.kernel.org, linux-scsi@...r.kernel.org,
        linux-fsdevel@...r.kernel.org
Subject: Re: [PATCH 15/24] compat_ioctl: scsi: move ioctl handling into
 drivers

On 12/12/19 9:27 AM, Christoph Hellwig wrote:
> On Thu, Dec 12, 2019 at 01:28:08AM +0100, Paolo Bonzini wrote:
>> I think it's because the only ioctl for virtio-blk is SG_IO.  It makes
>> sense to lump it in with scsi, but I wouldn't mind getting rid of
>> CONFIG_VIRTIO_BLK_SCSI altogether.
> 
> CONFIG_VIRTIO_BLK_SCSI has been broken for about two years, as it
> never set the QUEUE_FLAG_SCSI_PASSTHROUGH flag after that was
> introduced.  I actually have a patch that I plan to send to remove
> this support as it was a really idea to start with (speaking as
> the person who had that idea back in the day).

We had this very discussion two years ago, and we never got it removed.
Let's please get it done.

-- 
Jens Axboe