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[79.181.48.215]) by smtp.gmail.com with ESMTPSA id g18sm3736144wmh.48.2019.12.11.15.05.08 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Wed, 11 Dec 2019 15:05:10 -0800 (PST) Date: Wed, 11 Dec 2019 18:05:07 -0500 From: "Michael S. Tsirkin" To: Arnd Bergmann Cc: Jens Axboe , "James E.J. Bottomley" , "Martin K. Petersen" , Alexander Viro , Jason Wang , Doug Gilbert , Kai =?iso-8859-1?Q?M=E4kisara?= , linux-kernel@vger.kernel.org, y2038@lists.linaro.org, Paolo Bonzini , Stefan Hajnoczi , Bart Van Assche , Hannes Reinecke , Damien Le Moal , John Garry , 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 Message-ID: <20191211180155-mutt-send-email-mst@kernel.org> References: <20191211204306.1207817-1-arnd@arndb.de> <20191211204306.1207817-16-arnd@arndb.de> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20191211204306.1207817-16-arnd@arndb.de> Sender: linux-block-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-block@vger.kernel.org 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 > --- > 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