[GFS2] BUG: unable to handle kernel paging request at ffff81002690e000

	   depending on architecture.  I've experimented with several ways

	   of writing this section such as using an else before the goto

	   but this one seems to be the fastest. */

	while ((unsigned char *)plong < end - 1) {

	while ((unsigned char *)plong < end - sizeof(unsigned long)) {

		prefetch(plong + 1);

		if (((*plong) & LBITMASK) != lskipval)

			break;