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Date:   Thu, 21 Nov 2019 16:21:36 +0100
From:   Michal =?iso-8859-1?Q?Such=E1nek?= <msuchanek@suse.de>
To:     Christoph Hellwig <hch@infradead.org>
Cc:     linux-scsi@vger.kernel.org, Jonathan Corbet <corbet@lwn.net>,
        Jens Axboe <axboe@kernel.dk>,
        "James E.J. Bottomley" <jejb@linux.ibm.com>,
        "Martin K. Petersen" <martin.petersen@oracle.com>,
        Alexander Viro <viro@zeniv.linux.org.uk>,
        Mauro Carvalho Chehab <mchehab+samsung@kernel.org>,
        Eric Biggers <ebiggers@google.com>,
        "J. Bruce Fields" <bfields@redhat.com>,
        Benjamin Coddington <bcodding@redhat.com>,
        Hannes Reinecke <hare@suse.com>,
        Omar Sandoval <osandov@fb.com>, Ming Lei <ming.lei@redhat.com>,
        Damien Le Moal <damien.lemoal@wdc.com>,
        Bart Van Assche <bvanassche@acm.org>,
        Tejun Heo <tj@kernel.org>, linux-doc@vger.kernel.org,
        linux-kernel@vger.kernel.org, linux-fsdevel@vger.kernel.org
Subject: Re: [PATCH v2 7/8] scsi: sr: workaround VMware ESXi cdrom emulation
 bug
Message-ID: <20191121152136.GK11661@kitsune.suse.cz>
References: <cover.1571834862.git.msuchanek@suse.de>
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 <20191024022307.GC11485@infradead.org>
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On Wed, Oct 23, 2019 at 07:23:07PM -0700, Christoph Hellwig wrote:
> On Wed, Oct 23, 2019 at 02:52:46PM +0200, Michal Suchanek wrote:
> > 
> > The drive claims to have a tray and claims to be able to close it.
> > However, the UI has no notion of a tray - when medium is ejected it is
> > dropped in the floor and the user must select a medium again before the
> > drive can be re-loaded.  On the kernel side the tray_move call to close
> > the tray succeeds but the drive state does not change as a result of the
> > call.
> > 
> > The drive does not in fact emulate the tray state. There are two ways to
> > get the medium state. One is the SCSI status:
> 
> Given that this is a buggy software emulation we should not add more
> than 100 lines of kernel code to work around it.  Ask VMware to fix
> their mess instead.

Where do you see 100 lines of code?

The patch has exactly 4.

Thanks

Michal