/*
* Format device.
*/
static int
dasd_ioctl_format(struct block_device *bdev, void __user *argp)
{
struct dasd_device *base;
struct format_data_t fdata;
int rc;
if (!capable(CAP_SYS_ADMIN))
return -EACCES;
if (!argp)
return -EINVAL;
base = dasd_device_from_gendisk(bdev->bd_disk);
if (!base)
return -ENODEV;
if (base->features & DASD_FEATURE_READONLY ||
test_bit(DASD_FLAG_DEVICE_RO, &base->flags)) {
dasd_put_device(base);
return -EROFS;
}
if (copy_from_user(&fdata, argp, sizeof(struct format_data_t))) {
dasd_put_device(base);
return -EFAULT;
}
if (bdev != bdev->bd_contains) {
pr_warning("%s: The specified DASD is a partition and cannot "
"be formatted\n",
dev_name(&base->cdev->dev));
dasd_put_device(base);
return -EINVAL;
}
rc = dasd_format(base->block, &fdata);
dasd_put_device(base);
return rc;
}
/*
* Format device.
*/
static int
dasd_ioctl_format(struct block_device *bdev, void __user *argp)
{
struct dasd_block *block = bdev->bd_disk->private_data;
struct format_data_t fdata;
if (!capable(CAP_SYS_ADMIN))
return -EACCES;
if (!argp)
return -EINVAL;
if (block->base->features & DASD_FEATURE_READONLY)
return -EROFS;
if (copy_from_user(&fdata, argp, sizeof(struct format_data_t)))
return -EFAULT;
if (bdev != bdev->bd_contains) {
DEV_MESSAGE(KERN_WARNING, block->base, "%s",
"Cannot low-level format a partition");
return -EINVAL;
}
return dasd_format(block, &fdata);
}
/*
* Format device.
*/
static int
dasd_ioctl_format(struct block_device *bdev, void __user *argp)
{
struct dasd_block *block = bdev->bd_disk->private_data;
struct format_data_t fdata;
if (!capable(CAP_SYS_ADMIN))
return -EACCES;
if (!argp)
return -EINVAL;
if (block->base->features & DASD_FEATURE_READONLY)
return -EROFS;
if (copy_from_user(&fdata, argp, sizeof(struct format_data_t)))
return -EFAULT;
if (bdev != bdev->bd_contains) {
pr_warning("%s: The specified DASD is a partition and cannot "
"be formatted\n",
dev_name(&block->base->cdev->dev));
return -EINVAL;
}
return dasd_format(block, &fdata);
}