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path: root/drivers/block/aoe/aoeblk.c
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Diffstat (limited to 'drivers/block/aoe/aoeblk.c')
-rw-r--r--drivers/block/aoe/aoeblk.c26
1 files changed, 7 insertions, 19 deletions
diff --git a/drivers/block/aoe/aoeblk.c b/drivers/block/aoe/aoeblk.c
index 0e97fcb9f3a1..c05ee8bffd97 100644
--- a/drivers/block/aoe/aoeblk.c
+++ b/drivers/block/aoe/aoeblk.c
@@ -169,38 +169,26 @@ aoeblk_make_request(request_queue_t *q, struct bio *bio)
169 return 0; 169 return 0;
170} 170}
171 171
172/* This ioctl implementation expects userland to have the device node
173 * permissions set so that only priviledged users can open an aoe
174 * block device directly.
175 */
176static int 172static int
177aoeblk_ioctl(struct inode *inode, struct file *filp, uint cmd, ulong arg) 173aoeblk_getgeo(struct block_device *bdev, struct hd_geometry *geo)
178{ 174{
179 struct aoedev *d; 175 struct aoedev *d = bdev->bd_disk->private_data;
180
181 if (!arg)
182 return -EINVAL;
183 176
184 d = inode->i_bdev->bd_disk->private_data;
185 if ((d->flags & DEVFL_UP) == 0) { 177 if ((d->flags & DEVFL_UP) == 0) {
186 printk(KERN_ERR "aoe: aoeblk_ioctl: disk not up\n"); 178 printk(KERN_ERR "aoe: aoeblk_ioctl: disk not up\n");
187 return -ENODEV; 179 return -ENODEV;
188 } 180 }
189 181
190 if (cmd == HDIO_GETGEO) { 182 geo->cylinders = d->geo.cylinders;
191 d->geo.start = get_start_sect(inode->i_bdev); 183 geo->heads = d->geo.heads;
192 if (!copy_to_user((void __user *) arg, &d->geo, sizeof d->geo)) 184 geo->sectors = d->geo.sectors;
193 return 0; 185 return 0;
194 return -EFAULT;
195 }
196 printk(KERN_INFO "aoe: aoeblk_ioctl: unknown ioctl %d\n", cmd);
197 return -EINVAL;
198} 186}
199 187
200static struct block_device_operations aoe_bdops = { 188static struct block_device_operations aoe_bdops = {
201 .open = aoeblk_open, 189 .open = aoeblk_open,
202 .release = aoeblk_release, 190 .release = aoeblk_release,
203 .ioctl = aoeblk_ioctl, 191 .getgeo = aoeblk_getgeo,
204 .owner = THIS_MODULE, 192 .owner = THIS_MODULE,
205}; 193};
206 194