From: Ben Hutchings <ben.hutchings@codethink.co.uk>
To: Arnd Bergmann <arnd@arndb.de>, Jens Axboe <axboe@kernel.dk>,
"James E.J. Bottomley" <jejb@linux.ibm.com>,
"Martin K. Petersen" <martin.petersen@oracle.com>
Cc: linux-scsi@vger.kernel.org, linux-block@vger.kernel.org,
y2038@lists.linaro.org, linux-kernel@vger.kernel.org,
Christoph Hellwig <hch@lst.de>,
linux-doc@vger.kernel.org, corbet@lwn.net,
viro@zeniv.linux.org.uk, linux-fsdevel@vger.kernel.org
Subject: Re: [PATCH v2 18/27] compat_ioctl: scsi: move ioctl handling into drivers
Date: Wed, 18 Dec 2019 19:57:01 +0000 [thread overview]
Message-ID: <f9fd39116713f17e55091868326a419190220559.camel@codethink.co.uk> (raw)
In-Reply-To: <20191217221708.3730997-19-arnd@arndb.de>
On Tue, 2019-12-17 at 23:16 +0100, Arnd Bergmann wrote:
[...]
> --- a/drivers/scsi/sr.c
> +++ b/drivers/scsi/sr.c
[...]
> @@ -598,6 +599,55 @@ static int sr_block_ioctl(struct block_device *bdev, fmode_t mode, unsigned cmd,
> return ret;
> }
>
> +#ifdef CONFIG_COMPAT
> +static int sr_block_compat_ioctl(struct block_device *bdev, fmode_t mode, unsigned cmd,
> + unsigned long arg)
> +{
> + struct scsi_cd *cd = scsi_cd(bdev->bd_disk);
> + struct scsi_device *sdev = cd->device;
> + void __user *argp = compat_ptr(arg);
> + int ret;
> +
> + mutex_lock(&sr_mutex);
> +
> + ret = scsi_ioctl_block_when_processing_errors(sdev, cmd,
> + (mode & FMODE_NDELAY) != 0);
> + if (ret)
> + goto out;
> +
> + scsi_autopm_get_device(sdev);
> +
> + /*
> + * Send SCSI addressing ioctls directly to mid level, send other
> + * ioctls to cdrom/block level.
> + */
> + switch (cmd) {
> + case SCSI_IOCTL_GET_IDLUN:
> + case SCSI_IOCTL_GET_BUS_NUMBER:
> + ret = scsi_compat_ioctl(sdev, cmd, argp);
> + goto put;
> + }
> +
> + /*
> + * CDROM ioctls are handled in the block layer, but
> + * do the scsi blk ioctls here.
> + */
> + ret = scsi_cmd_blk_ioctl(bdev, mode, cmd, argp);
> + if (ret != -ENOTTY)
> + return ret;
This needs to be be "goto put;"
> + ret = scsi_compat_ioctl(sdev, cmd, argp);
> +
> +put:
> + scsi_autopm_put_device(sdev);
> +
> +out:
> + mutex_unlock(&sr_mutex);
> + return ret;
> +
> +}
> +#endif
[...]
--
Ben Hutchings, Software Developer Codethink Ltd
https://www.codethink.co.uk/ Dale House, 35 Dale Street
Manchester, M1 2HF, United Kingdom
next prev parent reply other threads:[~2019-12-18 19:57 UTC|newest]
Thread overview: 44+ messages / expand[flat|nested] mbox.gz Atom feed top
2019-12-17 22:16 [GIT PULL v2 00/27] block, scsi: final compat_ioctl cleanup Arnd Bergmann
2019-12-17 22:16 ` [PATCH v2 01/27] pktcdvd: fix regression on 64-bit architectures Arnd Bergmann
2019-12-17 22:16 ` [PATCH v2 02/27] compat_ioctl: block: handle BLKREPORTZONE/BLKRESETZONE Arnd Bergmann
2019-12-17 22:16 ` [PATCH v2 03/27] compat_ioctl: block: handle BLKGETZONESZ/BLKGETNRZONES Arnd Bergmann
2019-12-17 22:16 ` [PATCH v2 04/27] compat_ioctl: block: handle add zone open, close and finish ioctl Arnd Bergmann
2019-12-17 22:16 ` [PATCH v2 05/27] compat_ioctl: block: handle Persistent Reservations Arnd Bergmann
2019-12-17 22:16 ` [PATCH v2 06/27] compat: ARM64: always include asm-generic/compat.h Arnd Bergmann
2019-12-17 22:16 ` [PATCH v2 07/27] compat: provide compat_ptr() on all architectures Arnd Bergmann
2019-12-17 22:16 ` [PATCH v2 08/27] compat: scsi: sg: fix v3 compat read/write interface Arnd Bergmann
2019-12-17 22:16 ` [PATCH v2 09/27] compat_ioctl: block: add blkdev_compat_ptr_ioctl Arnd Bergmann
2019-12-17 22:16 ` [PATCH v2 10/27] compat_ioctl: ubd, aoe: use blkdev_compat_ptr_ioctl Arnd Bergmann
2019-12-17 22:16 ` [PATCH v2 11/27] compat_ioctl: move CDROM_SEND_PACKET handling into scsi Arnd Bergmann
2019-12-17 22:16 ` [PATCH v2 12/27] compat_ioctl: move CDROMREADADIO to cdrom.c Arnd Bergmann
2019-12-17 22:16 ` [PATCH v2 13/27] compat_ioctl: cdrom: handle CDROM_LAST_WRITTEN Arnd Bergmann
2019-12-17 22:16 ` [PATCH v2 14/27] compat_ioctl: block: handle cdrom compat ioctl in non-cdrom drivers Arnd Bergmann
2019-12-17 22:16 ` [PATCH v2 15/27] compat_ioctl: add scsi_compat_ioctl Arnd Bergmann
2019-12-17 22:16 ` [PATCH v2 16/27] compat_ioctl: bsg: add handler Arnd Bergmann
2019-12-17 22:16 ` [PATCH v2 17/27] compat_ioctl: ide: floppy: " Arnd Bergmann
2019-12-18 18:45 ` Ben Hutchings
2019-12-18 19:28 ` Arnd Bergmann
2019-12-17 22:16 ` [PATCH v2 18/27] compat_ioctl: scsi: move ioctl handling into drivers Arnd Bergmann
2019-12-18 19:57 ` Ben Hutchings [this message]
2019-12-19 12:06 ` Arnd Bergmann
2019-12-17 22:17 ` [PATCH v2 19/27] compat_ioctl: move sys_compat_ioctl() to ioctl.c Arnd Bergmann
2019-12-17 22:17 ` [PATCH v2 20/27] compat_ioctl: simplify the implementation Arnd Bergmann
2020-02-07 7:22 ` youling257
2020-02-07 17:06 ` Arnd Bergmann
2020-02-07 20:02 ` youling 257
2019-12-17 22:17 ` [PATCH v2 21/27] compat_ioctl: move cdrom commands into cdrom.c Arnd Bergmann
2019-12-18 20:11 ` Ben Hutchings
2019-12-19 12:15 ` Arnd Bergmann
2019-12-17 22:17 ` [PATCH v2 22/27] compat_ioctl: scsi: handle HDIO commands from drivers Arnd Bergmann
2019-12-17 22:17 ` [PATCH v2 23/27] compat_ioctl: move HDIO ioctl handling into drivers/ide Arnd Bergmann
2019-12-18 21:11 ` Ben Hutchings
2019-12-18 22:17 ` Arnd Bergmann
2019-12-18 22:20 ` Ben Hutchings
2019-12-17 22:17 ` [PATCH v2 24/27] compat_ioctl: block: move blkdev_compat_ioctl() into ioctl.c Arnd Bergmann
2019-12-17 22:17 ` [PATCH v2 25/27] compat_ioctl: block: simplify compat_blkpg_ioctl() Arnd Bergmann
2019-12-17 22:17 ` [PATCH v2 26/27] compat_ioctl: simplify up block/ioctl.c Arnd Bergmann
2019-12-17 22:17 ` [PATCH v2 27/27] Documentation: document ioctl interfaces better Arnd Bergmann
2019-12-18 22:45 ` Ben Hutchings
2019-12-19 20:05 ` Arnd Bergmann
2019-12-18 17:24 ` [GIT PULL v2 00/27] block, scsi: final compat_ioctl cleanup Arnd Bergmann
2019-12-19 3:18 ` Martin K. Petersen
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