void mnt_ref_fs(struct libmnt_fs *fs)
{
	if (fs) {
		fs->refcount++;
		/*DBG(FS, ul_debugobj(fs, "ref=%d", fs->refcount));*/
	}
}
void mnt_ref_fs(struct libmnt_fs *fs)
{
	if (fs) {
		fs->refcount++;
		 
	}
}