From: "Michael S. Tsirkin" <mst@redhat.com>
To: Arnd Bergmann <arnd@arndb.de>
Cc: "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>,
"Jason Wang" <jasowang@redhat.com>,
"Doug Gilbert" <dgilbert@interlog.com>,
"Kai Mäkisara" <Kai.Makisara@kolumbus.fi>,
linux-kernel@vger.kernel.org, y2038@lists.linaro.org,
"Paolo Bonzini" <pbonzini@redhat.com>,
"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
Subject: Re: [PATCH 15/24] compat_ioctl: scsi: move ioctl handling into drivers
Date: Wed, 11 Dec 2019 18:05:07 -0500 [thread overview]
Message-ID: <20191211180155-mutt-send-email-mst@kernel.org> (raw)
In-Reply-To: <20191211204306.1207817-16-arnd@arndb.de>
On Wed, Dec 11, 2019 at 09:42:49PM +0100, Arnd Bergmann wrote:
> Each driver calling scsi_ioctl() gets an equivalent compat_ioctl()
> handler that implements the same commands by calling scsi_compat_ioctl().
>
> The scsi_cmd_ioctl() and scsi_cmd_blk_ioctl() functions are compatible
> at this point, so any driver that calls those can do so for both native
> and compat mode, with the argument passed through compat_ptr().
>
> With this, we can remove the entries from fs/compat_ioctl.c. The new
> code is larger, but should be easier to maintain and keep updated with
> newly added commands.
>
> Signed-off-by: Arnd Bergmann <arnd@arndb.de>
> ---
> drivers/block/virtio_blk.c | 3 +
> drivers/scsi/ch.c | 9 ++-
> drivers/scsi/sd.c | 50 ++++++--------
> drivers/scsi/sg.c | 44 ++++++++-----
> drivers/scsi/sr.c | 57 ++++++++++++++--
> drivers/scsi/st.c | 51 ++++++++------
> fs/compat_ioctl.c | 132 +------------------------------------
> 7 files changed, 142 insertions(+), 204 deletions(-)
>
> diff --git a/drivers/block/virtio_blk.c b/drivers/block/virtio_blk.c
> index 7ffd719d89de..fbbf18ac1d5d 100644
> --- a/drivers/block/virtio_blk.c
> +++ b/drivers/block/virtio_blk.c
> @@ -405,6 +405,9 @@ static int virtblk_getgeo(struct block_device *bd, struct hd_geometry *geo)
>
> static const struct block_device_operations virtblk_fops = {
> .ioctl = virtblk_ioctl,
> +#ifdef CONFIG_COMPAT
> + .compat_ioctl = blkdev_compat_ptr_ioctl,
> +#endif
> .owner = THIS_MODULE,
> .getgeo = virtblk_getgeo,
> };
Hmm - is virtio blk lumped in with scsi things intentionally?
--
MST
next prev parent reply other threads:[~2019-12-11 23:05 UTC|newest]
Thread overview: 36+ messages / expand[flat|nested] mbox.gz Atom feed top
2019-12-11 20:42 [PATCH 00/24] block, scsi: final compat_ioctl cleanup Arnd Bergmann
2019-12-11 20:42 ` [PATCH 02/24] compat: scsi: sg: fix v3 compat read/write interface Arnd Bergmann
2019-12-12 16:25 ` Christoph Hellwig
2019-12-12 17:34 ` Arnd Bergmann
2019-12-11 20:42 ` [PATCH 03/24] compat_ioctl: block: handle BLKREPORTZONE/BLKRESETZONE Arnd Bergmann
2019-12-12 1:20 ` Damien Le Moal
2019-12-11 20:42 ` [PATCH 04/24] compat_ioctl: block: handle BLKGETZONESZ/BLKGETNRZONES Arnd Bergmann
2019-12-12 1:20 ` Damien Le Moal
2019-12-11 20:42 ` [PATCH 05/24] compat_ioctl: block: handle add zone open, close and finish ioctl Arnd Bergmann
2019-12-12 1:20 ` Damien Le Moal
2019-12-11 20:42 ` [PATCH 06/24] compat_ioctl: block: handle Persistent Reservations Arnd Bergmann
2019-12-11 20:42 ` [PATCH 07/24] compaT_ioctl: ubd, aoe: use blkdev_compat_ptr_ioctl Arnd Bergmann
2019-12-11 20:42 ` [PATCH 08/24] compat_ioctl: move CDROM_SEND_PACKET handling into scsi Arnd Bergmann
2019-12-11 20:42 ` [PATCH 09/24] compat_ioctl: move CDROMREADADIO to cdrom.c Arnd Bergmann
2019-12-11 20:42 ` [PATCH 10/24] compat_ioctl: cdrom: handle CDROM_LAST_WRITTEN Arnd Bergmann
2019-12-17 15:20 ` [Y2038] " Ben Hutchings
2019-12-17 21:38 ` Arnd Bergmann
2019-12-11 20:42 ` [PATCH 11/24] compat_ioctl: block: handle cdrom compat ioctl in non-cdrom drivers Arnd Bergmann
2019-12-11 20:42 ` [PATCH 13/24] compat_ioctl: bsg: add handler Arnd Bergmann
2019-12-11 20:42 ` [PATCH 15/24] compat_ioctl: scsi: move ioctl handling into drivers Arnd Bergmann
2019-12-11 23:05 ` Michael S. Tsirkin [this message]
2019-12-12 0:28 ` Paolo Bonzini
2019-12-12 9:17 ` Arnd Bergmann
2019-12-12 10:27 ` Michael S. Tsirkin
2019-12-12 16:27 ` Christoph Hellwig
2019-12-12 16:35 ` Jens Axboe
2019-12-12 10:25 ` Michael S. Tsirkin
2019-12-11 20:42 ` [PATCH 18/24] compat_ioctl: move cdrom commands into cdrom.c Arnd Bergmann
2019-12-11 20:42 ` [PATCH 20/24] compat_ioctl: move HDIO ioctl handling into drivers/ide Arnd Bergmann
2019-12-12 16:29 ` Christoph Hellwig
2019-12-12 17:21 ` Arnd Bergmann
2019-12-11 20:42 ` [PATCH 21/24] compat_ioctl: block: move blkdev_compat_ioctl() into ioctl.c Arnd Bergmann
2019-12-12 16:30 ` Christoph Hellwig
2019-12-12 17:24 ` Arnd Bergmann
2019-12-11 20:42 ` [PATCH 22/24] compat_ioctl: block: simplify compat_blkpg_ioctl() Arnd Bergmann
2019-12-11 20:42 ` [PATCH 23/24] compat_ioctl: simplify up block/ioctl.c Arnd Bergmann
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