1 files changed, 0 insertions, 275 deletions

diff --git a/drivers/block/ioctl.c b/drivers/block/ioctl.c
deleted file mode 100644
index 6e278474f9a8..000000000000
--- a/drivers/block/ioctl.c
+++ /dev/null
@@ -1,275 +0,0 @@
-#include <linux/sched.h>		/* for capable() */
-#include <linux/blkdev.h>
-#include <linux/blkpg.h>
-#include <linux/backing-dev.h>
-#include <linux/buffer_head.h>
-#include <linux/smp_lock.h>
-#include <asm/uaccess.h>
-
-static int blkpg_ioctl(struct block_device *bdev, struct blkpg_ioctl_arg __user *arg)
-{
-	struct block_device *bdevp;
-	struct gendisk *disk;
-	struct blkpg_ioctl_arg a;
-	struct blkpg_partition p;
-	long long start, length;
-	int part;
-	int i;
-
-	if (!capable(CAP_SYS_ADMIN))
-		return -EACCES;
-	if (copy_from_user(&a, arg, sizeof(struct blkpg_ioctl_arg)))
-		return -EFAULT;
-	if (copy_from_user(&p, a.data, sizeof(struct blkpg_partition)))
-		return -EFAULT;
-	disk = bdev->bd_disk;
-	if (bdev != bdev->bd_contains)
-		return -EINVAL;
-	part = p.pno;
-	if (part <= 0 || part >= disk->minors)
-		return -EINVAL;
-	switch (a.op) {
-		case BLKPG_ADD_PARTITION:
-			start = p.start >> 9;
-			length = p.length >> 9;
-			/* check for fit in a hd_struct */ 
-			if (sizeof(sector_t) == sizeof(long) && 
-			    sizeof(long long) > sizeof(long)) {
-				long pstart = start, plength = length;
-				if (pstart != start || plength != length
-				    || pstart < 0 || plength < 0)
-					return -EINVAL;
-			}
-			/* partition number in use? */
-			down(&bdev->bd_sem);
-			if (disk->part[part - 1]) {
-				up(&bdev->bd_sem);
-				return -EBUSY;
-			}
-			/* overlap? */
-			for (i = 0; i < disk->minors - 1; i++) {
-				struct hd_struct *s = disk->part[i];
-
-				if (!s)
-					continue;
-				if (!(start+length <= s->start_sect ||
-				      start >= s->start_sect + s->nr_sects)) {
-					up(&bdev->bd_sem);
-					return -EBUSY;
-				}
-			}
-			/* all seems OK */
-			add_partition(disk, part, start, length);
-			up(&bdev->bd_sem);
-			return 0;
-		case BLKPG_DEL_PARTITION:
-			if (!disk->part[part-1])
-				return -ENXIO;
-			if (disk->part[part - 1]->nr_sects == 0)
-				return -ENXIO;
-			bdevp = bdget_disk(disk, part);
-			if (!bdevp)
-				return -ENOMEM;
-			down(&bdevp->bd_sem);
-			if (bdevp->bd_openers) {
-				up(&bdevp->bd_sem);
-				bdput(bdevp);
-				return -EBUSY;
-			}
-			/* all seems OK */
-			fsync_bdev(bdevp);
-			invalidate_bdev(bdevp, 0);
-
-			down(&bdev->bd_sem);
-			delete_partition(disk, part);
-			up(&bdev->bd_sem);
-			up(&bdevp->bd_sem);
-			bdput(bdevp);
-
-			return 0;
-		default:
-			return -EINVAL;
-	}
-}
-
-static int blkdev_reread_part(struct block_device *bdev)
-{
-	struct gendisk *disk = bdev->bd_disk;
-	int res;
-
-	if (disk->minors == 1 || bdev != bdev->bd_contains)
-		return -EINVAL;
-	if (!capable(CAP_SYS_ADMIN))
-		return -EACCES;
-	if (down_trylock(&bdev->bd_sem))
-		return -EBUSY;
-	res = rescan_partitions(disk, bdev);
-	up(&bdev->bd_sem);
-	return res;
-}
-
-static int put_ushort(unsigned long arg, unsigned short val)
-{
-	return put_user(val, (unsigned short __user *)arg);
-}
-
-static int put_int(unsigned long arg, int val)
-{
-	return put_user(val, (int __user *)arg);
-}
-
-static int put_long(unsigned long arg, long val)
-{
-	return put_user(val, (long __user *)arg);
-}
-
-static int put_ulong(unsigned long arg, unsigned long val)
-{
-	return put_user(val, (unsigned long __user *)arg);
-}
-
-static int put_u64(unsigned long arg, u64 val)
-{
-	return put_user(val, (u64 __user *)arg);
-}
-
-static int blkdev_locked_ioctl(struct file *file, struct block_device *bdev,
-				unsigned cmd, unsigned long arg)
-{
-	struct backing_dev_info *bdi;
-	int ret, n;
-
-	switch (cmd) {
-	case BLKRAGET:
-	case BLKFRAGET:
-		if (!arg)
-			return -EINVAL;
-		bdi = blk_get_backing_dev_info(bdev);
-		if (bdi == NULL)
-			return -ENOTTY;
-		return put_long(arg, (bdi->ra_pages * PAGE_CACHE_SIZE) / 512);
-	case BLKROGET:
-		return put_int(arg, bdev_read_only(bdev) != 0);
-	case BLKBSZGET: /* get the logical block size (cf. BLKSSZGET) */
-		return put_int(arg, block_size(bdev));
-	case BLKSSZGET: /* get block device hardware sector size */
-		return put_int(arg, bdev_hardsect_size(bdev));
-	case BLKSECTGET:
-		return put_ushort(arg, bdev_get_queue(bdev)->max_sectors);
-	case BLKRASET:
-	case BLKFRASET:
-		if(!capable(CAP_SYS_ADMIN))
-			return -EACCES;
-		bdi = blk_get_backing_dev_info(bdev);
-		if (bdi == NULL)
-			return -ENOTTY;
-		bdi->ra_pages = (arg * 512) / PAGE_CACHE_SIZE;
-		return 0;
-	case BLKBSZSET:
-		/* set the logical block size */
-		if (!capable(CAP_SYS_ADMIN))
-			return -EACCES;
-		if (!arg)
-			return -EINVAL;
-		if (get_user(n, (int __user *) arg))
-			return -EFAULT;
-		if (bd_claim(bdev, file) < 0)
-			return -EBUSY;
-		ret = set_blocksize(bdev, n);
-		bd_release(bdev);
-		return ret;
-	case BLKPG:
-		return blkpg_ioctl(bdev, (struct blkpg_ioctl_arg __user *) arg);
-	case BLKRRPART:
-		return blkdev_reread_part(bdev);
-	case BLKGETSIZE:
-		if ((bdev->bd_inode->i_size >> 9) > ~0UL)
-			return -EFBIG;
-		return put_ulong(arg, bdev->bd_inode->i_size >> 9);
-	case BLKGETSIZE64:
-		return put_u64(arg, bdev->bd_inode->i_size);
-	}
-	return -ENOIOCTLCMD;
-}
-
-static 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)
-		return disk->fops->unlocked_ioctl(file, cmd, arg);
-
-	if (disk->fops->ioctl) {
-		lock_kernel();
-		ret = disk->fops->ioctl(inode, file, cmd, arg);
-		unlock_kernel();
-		return ret;
-	}
-
-	return -ENOTTY;
-}
-
-int blkdev_ioctl(struct inode *inode, struct file *file, unsigned cmd,
-			unsigned long arg)
-{
-	struct block_device *bdev = inode->i_bdev;
-	struct gendisk *disk = bdev->bd_disk;
-	int ret, n;
-
-	switch(cmd) {
-	case BLKFLSBUF:
-		if (!capable(CAP_SYS_ADMIN))
-			return -EACCES;
-
-		ret = blkdev_driver_ioctl(inode, file, disk, cmd, arg);
-		/* -EINVAL to handle old uncorrected drivers */
-		if (ret != -EINVAL && ret != -ENOTTY)
-			return ret;
-
-		lock_kernel();
-		fsync_bdev(bdev);
-		invalidate_bdev(bdev, 0);
-		unlock_kernel();
-		return 0;
-
-	case BLKROSET:
-		ret = blkdev_driver_ioctl(inode, file, disk, cmd, arg);
-		/* -EINVAL to handle old uncorrected drivers */
-		if (ret != -EINVAL && ret != -ENOTTY)
-			return ret;
-		if (!capable(CAP_SYS_ADMIN))
-			return -EACCES;
-		if (get_user(n, (int __user *)(arg)))
-			return -EFAULT;
-		lock_kernel();
-		set_device_ro(bdev, n);
-		unlock_kernel();
-		return 0;
-	}
-
-	lock_kernel();
-	ret = blkdev_locked_ioctl(file, bdev, cmd, arg);
-	unlock_kernel();
-	if (ret != -ENOIOCTLCMD)
-		return ret;
-
-	return blkdev_driver_ioctl(inode, file, disk, cmd, arg);
-}
-
-/* Most of the generic ioctls are handled in the normal fallback path.
-   This assumes the blkdev's low level compat_ioctl always returns
-   ENOIOCTLCMD for unknown ioctls. */
-long compat_blkdev_ioctl(struct file *file, unsigned cmd, unsigned long arg)
-{
-	struct block_device *bdev = file->f_dentry->d_inode->i_bdev;
-	struct gendisk *disk = bdev->bd_disk;
-	int ret = -ENOIOCTLCMD;
-	if (disk->fops->compat_ioctl) {
-		lock_kernel();
-		ret = disk->fops->compat_ioctl(file, cmd, arg);
-		unlock_kernel();
-	}
-	return ret;
-}
-
-EXPORT_SYMBOL_GPL(blkdev_ioctl);