diff options
Diffstat (limited to 'drivers/md/dm-mpath.c')
-rw-r--r-- | drivers/md/dm-mpath.c | 13 |
1 files changed, 10 insertions, 3 deletions
diff --git a/drivers/md/dm-mpath.c b/drivers/md/dm-mpath.c index dcfbf830964c..fb9582ae6b2d 100644 --- a/drivers/md/dm-mpath.c +++ b/drivers/md/dm-mpath.c | |||
@@ -1273,15 +1273,22 @@ static int multipath_ioctl(struct dm_target *ti, struct inode *inode, | |||
1273 | struct multipath *m = (struct multipath *) ti->private; | 1273 | struct multipath *m = (struct multipath *) ti->private; |
1274 | struct block_device *bdev = NULL; | 1274 | struct block_device *bdev = NULL; |
1275 | unsigned long flags; | 1275 | unsigned long flags; |
1276 | struct file fake_file = {}; | ||
1277 | struct dentry fake_dentry = {}; | ||
1276 | int r = 0; | 1278 | int r = 0; |
1277 | 1279 | ||
1280 | fake_file.f_dentry = &fake_dentry; | ||
1281 | |||
1278 | spin_lock_irqsave(&m->lock, flags); | 1282 | spin_lock_irqsave(&m->lock, flags); |
1279 | 1283 | ||
1280 | if (!m->current_pgpath) | 1284 | if (!m->current_pgpath) |
1281 | __choose_pgpath(m); | 1285 | __choose_pgpath(m); |
1282 | 1286 | ||
1283 | if (m->current_pgpath) | 1287 | if (m->current_pgpath) { |
1284 | bdev = m->current_pgpath->path.dev->bdev; | 1288 | bdev = m->current_pgpath->path.dev->bdev; |
1289 | fake_dentry.d_inode = bdev->bd_inode; | ||
1290 | fake_file.f_mode = m->current_pgpath->path.dev->mode; | ||
1291 | } | ||
1285 | 1292 | ||
1286 | if (m->queue_io) | 1293 | if (m->queue_io) |
1287 | r = -EAGAIN; | 1294 | r = -EAGAIN; |
@@ -1290,8 +1297,8 @@ static int multipath_ioctl(struct dm_target *ti, struct inode *inode, | |||
1290 | 1297 | ||
1291 | spin_unlock_irqrestore(&m->lock, flags); | 1298 | spin_unlock_irqrestore(&m->lock, flags); |
1292 | 1299 | ||
1293 | return r ? : blkdev_driver_ioctl(bdev->bd_inode, filp, bdev->bd_disk, | 1300 | return r ? : blkdev_driver_ioctl(bdev->bd_inode, &fake_file, |
1294 | cmd, arg); | 1301 | bdev->bd_disk, cmd, arg); |
1295 | } | 1302 | } |
1296 | 1303 | ||
1297 | /*----------------------------------------------------------------- | 1304 | /*----------------------------------------------------------------- |