From: Christoph Hellwig <hch@infradead.org>
To: Michal Suchanek <msuchanek@suse.de>
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 8/8] scsi: sr: wait for the medium to become ready
Date: Wed, 23 Oct 2019 19:24:06 -0700 [thread overview]
Message-ID: <20191024022406.GD11485@infradead.org> (raw)
In-Reply-To: <94dc98dc67b1d183d04c338c7978efa0556db6ac.1571834862.git.msuchanek@suse.de>
On Wed, Oct 23, 2019 at 02:52:47PM +0200, Michal Suchanek wrote:
> +static int sr_block_open_finish(struct block_device *bdev, fmode_t mode,
> + int ret)
> +{
> + struct scsi_cd *cd = scsi_cd(bdev->bd_disk);
> +
> + /* wait for drive to get ready */
> + if ((ret == -ENOMEDIUM) && !(mode & FMODE_NDELAY)) {
> + struct scsi_device *sdev = cd->device;
> + /*
> + * Cannot use sr_block_ioctl because it locks sr_mutex blocking
> + * out any processes trying to access the drive
> + */
> + scsi_autopm_get_device(sdev);
> + cdrom_ioctl(&cd->cdi, bdev, mode, CDROM_AUTOCLOSE, 0);
> + ret = __sr_block_open(bdev, mode);
> + scsi_autopm_put_device(sdev);
Ioctls should never be used from kernel space. We have a few leftovers,
but we need to get rid of that and not add more.
next prev parent reply other threads:[~2019-10-24 2:24 UTC|newest]
Thread overview: 34+ messages / expand[flat|nested] mbox.gz Atom feed top
2019-10-23 12:52 [PATCH v2 0/8] Fix cdrom autoclose Michal Suchanek
2019-10-23 12:52 ` [PATCH v2 1/8] cdrom: add poll_event_interruptible Michal Suchanek
2019-10-23 12:52 ` [PATCH v2 2/8] cdrom: factor out common open_for_* code Michal Suchanek
2019-10-24 2:19 ` Christoph Hellwig
2019-10-24 8:50 ` Michal Suchánek
2019-10-25 2:39 ` Christoph Hellwig
2019-10-25 10:42 ` Michal Suchánek
2019-10-26 6:46 ` Finn Thain
2019-10-24 13:23 ` Matthew Wilcox
2019-10-25 2:38 ` Christoph Hellwig
2019-10-23 12:52 ` [PATCH v2 3/8] cdrom: wait for the tray to close Michal Suchanek
2019-10-23 12:52 ` [PATCH v2 4/8] cdrom: separate autoclose into an IOCTL Michal Suchanek
2019-10-23 12:52 ` [PATCH v2 5/8] docs: cdrom: Add autoclose IOCTL Michal Suchanek
2019-10-23 12:52 ` [PATCH v2 6/8] bdev: add open_finish Michal Suchanek
2019-10-24 2:22 ` Christoph Hellwig
2019-10-24 8:55 ` Michal Suchánek
2019-10-24 13:12 ` Matthew Wilcox
2019-10-24 13:19 ` Michal Suchánek
2019-11-21 10:15 ` Michal Suchánek
2019-10-23 12:52 ` [PATCH v2 7/8] scsi: sr: workaround VMware ESXi cdrom emulation bug Michal Suchanek
2019-10-23 14:13 ` Hannes Reinecke
2019-10-23 16:23 ` Michal Suchánek
2019-10-23 21:44 ` Ewan D. Milne
2019-10-24 5:46 ` Hannes Reinecke
2019-10-24 8:56 ` Michal Suchánek
2019-10-24 9:41 ` Hannes Reinecke
2019-10-24 10:11 ` Michal Suchánek
2019-10-24 2:23 ` Christoph Hellwig
2019-10-24 8:53 ` Michal Suchánek
2019-11-21 15:21 ` Michal Suchánek
2019-10-23 12:52 ` [PATCH v2 8/8] scsi: sr: wait for the medium to become ready Michal Suchanek
2019-10-24 2:24 ` Christoph Hellwig [this message]
2019-10-24 8:51 ` Michal Suchánek
2019-10-24 13:14 ` Matthew Wilcox
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