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Subject: Re: [PATCH 15/24] compat_ioctl: scsi: move ioctl handling into
 drivers
To:     Christoph Hellwig <hch@infradead.org>,
        Paolo Bonzini <pbonzini@redhat.com>
Cc:     "Michael S. Tsirkin" <mst@redhat.com>,
        Arnd Bergmann <arnd@arndb.de>,
        "James E.J. Bottomley" <jejb@linux.ibm.com>,
        "Martin K. Petersen" <martin.petersen@oracle.com>,
        Alexander Viro <viro@zeniv.linux.org.uk>,
        Jason Wang <jasowang@redhat.com>,
        Doug Gilbert <dgilbert@interlog.com>,
        =?UTF-8?Q?Kai_M=c3=a4kisara?= <Kai.Makisara@kolumbus.fi>,
        linux-kernel@vger.kernel.org, y2038@lists.linaro.org,
        Stefan Hajnoczi <stefanha@redhat.com>,
        Bart Van Assche <bvanassche@acm.org>,
        Hannes Reinecke <hare@suse.com>,
        Damien Le Moal <damien.lemoal@wdc.com>,
        John Garry <john.garry@huawei.com>,
        virtualization@lists.linux-foundation.org,
        linux-block@vger.kernel.org, linux-scsi@vger.kernel.org,
        linux-fsdevel@vger.kernel.org
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 <20191212162729.GB27991@infradead.org>
From:   Jens Axboe <axboe@kernel.dk>
Message-ID: <6e265890-23e5-6368-4e36-d59ff47879b2@kernel.dk>
Date:   Thu, 12 Dec 2019 09:35:22 -0700
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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