if (sb->s_op->freeze_fs == NULL)
return -EOPNOTSUPP;
- /* If a blockdevice-backed filesystem isn't specified, return. */
- if (sb->s_bdev == NULL)
- return -EINVAL;
-
/* Freeze */
- sb = freeze_bdev(sb->s_bdev);
- if (IS_ERR(sb))
- return PTR_ERR(sb);
- return 0;
+ return freeze_super(sb);
}
static int ioctl_fsthaw(struct file *filp)
if (!capable(CAP_SYS_ADMIN))
return -EPERM;
- /* If a blockdevice-backed filesystem isn't specified, return EINVAL. */
- if (sb->s_bdev == NULL)
- return -EINVAL;
-
/* Thaw */
- return thaw_bdev(sb->s_bdev, sb);
+ return thaw_super(sb);
}
/*