diff options
| author | Alasdair G Kergon <agk@redhat.com> | 2006-10-03 10:15:21 +0200 |
|---|---|---|
| committer | Linus Torvalds <torvalds@g5.osdl.org> | 2006-10-03 17:04:13 +0200 |
| commit | 7006f6eca874cd44d37ccb8cfeb8bed04e3bff22 (patch) | |
| tree | 2e0827157e770e62493dea144e5d9ef73091e554 | |
| parent | [PATCH] dm mpath: support ioctls (diff) | |
| download | linux-7006f6eca874cd44d37ccb8cfeb8bed04e3bff22.tar.xz linux-7006f6eca874cd44d37ccb8cfeb8bed04e3bff22.zip | |
[PATCH] dm: export blkdev_driver_ioctl
Export blkdev_driver_ioctl for device-mapper.
If we get as far as the device-mapper ioctl handler, we know the ioctl is not
a standard block layer BLK* one, so we don't need to check for them a second
time and can call blkdev_driver_ioctl() directly.
Signed-off-by: Alasdair G Kergon <agk@redhat.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
| -rw-r--r-- | block/ioctl.c | 5 | ||||
| -rw-r--r-- | drivers/md/dm-linear.c | 2 | ||||
| -rw-r--r-- | drivers/md/dm-mpath.c | 3 | ||||
| -rw-r--r-- | include/linux/fs.h | 3 |
4 files changed, 9 insertions, 4 deletions
diff --git a/block/ioctl.c b/block/ioctl.c index 309760b7e37f..58aab630dfc1 100644 --- a/block/ioctl.c +++ b/block/ioctl.c @@ -199,8 +199,8 @@ static int blkdev_locked_ioctl(struct file *file, struct block_device *bdev, return -ENOIOCTLCMD; } -static int blkdev_driver_ioctl(struct inode *inode, struct file *file, - struct gendisk *disk, unsigned cmd, unsigned long arg) +int blkdev_driver_ioctl(struct inode *inode, struct file *file, + struct gendisk *disk, unsigned cmd, unsigned long arg) { int ret; if (disk->fops->unlocked_ioctl) @@ -215,6 +215,7 @@ static int blkdev_driver_ioctl(struct inode *inode, struct file *file, return -ENOTTY; } +EXPORT_SYMBOL_GPL(blkdev_driver_ioctl); int blkdev_ioctl(struct inode *inode, struct file *file, unsigned cmd, unsigned long arg) diff --git a/drivers/md/dm-linear.c b/drivers/md/dm-linear.c index c58f072ccae6..2a6bad451f86 100644 --- a/drivers/md/dm-linear.c +++ b/drivers/md/dm-linear.c @@ -105,7 +105,7 @@ static int linear_ioctl(struct dm_target *ti, struct inode *inode, struct linear_c *lc = (struct linear_c *) ti->private; struct block_device *bdev = lc->dev->bdev; - return blkdev_ioctl(bdev->bd_inode, filp, cmd, arg); + return blkdev_driver_ioctl(bdev->bd_inode, filp, bdev->bd_disk, cmd, arg); } static struct target_type linear_target = { diff --git a/drivers/md/dm-mpath.c b/drivers/md/dm-mpath.c index 14cfdb538efd..dcfbf830964c 100644 --- a/drivers/md/dm-mpath.c +++ b/drivers/md/dm-mpath.c @@ -1290,7 +1290,8 @@ static int multipath_ioctl(struct dm_target *ti, struct inode *inode, spin_unlock_irqrestore(&m->lock, flags); - return r ? : blkdev_ioctl(bdev->bd_inode, filp, cmd, arg); + return r ? : blkdev_driver_ioctl(bdev->bd_inode, filp, bdev->bd_disk, + cmd, arg); } /*----------------------------------------------------------------- diff --git a/include/linux/fs.h b/include/linux/fs.h index 7b61e94bf8fc..f53bf4ff1955 100644 --- a/include/linux/fs.h +++ b/include/linux/fs.h @@ -1523,6 +1523,9 @@ extern const struct file_operations def_fifo_fops; #ifdef CONFIG_BLOCK extern int ioctl_by_bdev(struct block_device *, unsigned, unsigned long); extern int blkdev_ioctl(struct inode *, struct file *, unsigned, unsigned long); +extern int blkdev_driver_ioctl(struct inode *inode, struct file *file, + struct gendisk *disk, unsigned cmd, + unsigned long arg); extern long compat_blkdev_ioctl(struct file *, unsigned, unsigned long); extern int blkdev_get(struct block_device *, mode_t, unsigned); extern int blkdev_put(struct block_device *); |