ntfs_check_if_mounted
mnt = ntfs_check_if_mounted(device, &mntflag);
extern int ntfs_check_if_mounted(const char *file, unsigned long *mnt_flags);
if (ntfs_check_if_mounted(vol->dev->d_name, &mnt_flags)) {
if (ntfs_check_if_mounted(name, &mnt_flags)) {