fs/xfs/xfs_bmap.c

3662 	xfs_extnum_t	lastx;		/* last extent index */
3678 	ep = xfs_iext_bno_to_ext(ifp, bno, &lastx);
3679 	if (lastx > 0) {
3680 		xfs_bmbt_get_all(xfs_iext_get_ext(ifp, lastx - 1), prevp);
3682 	if (lastx < (ifp->if_bytes / (uint)sizeof(xfs_bmbt_rec_t))) {
3686 		if (lastx > 0) {
3692 	*lastxp = lastx;
4370 	xfs_extnum_t	lastx;			/* last extent used */
4386 	ep = xfs_bmap_search_extents(ip, bno, whichfork, &eof, &lastx, &got,
4731 	xfs_extnum_t	lastx;		/* last useful extent number */
4822 	ep = xfs_bmap_search_extents(ip, bno, whichfork, &eof, &lastx, &got,
4856 				if (lastx != NULLEXTNUM && lastx) {
4857 					ep = xfs_iext_get_ext(ifp, lastx - 1);
5068 			error = xfs_bmap_add_extent(ip, lastx, &cur, &got,
5074 			lastx = ifp->if_lastex;
5075 			ep = xfs_iext_get_ext(ifp, lastx);
5165 			error = xfs_bmap_add_extent(ip, lastx, &cur, mval,
5171 			lastx = ifp->if_lastex;
5172 			ep = xfs_iext_get_ext(ifp, lastx);
5230 		ep = xfs_iext_get_ext(ifp, ++lastx);
5231 		if (lastx >= nextents) {
5237 	ifp->if_lastex = lastx;
5324 	xfs_extnum_t	lastx;		/* last useful extent number */
5341 	(void)xfs_bmap_search_extents(ip, bno, whichfork, &eof, &lastx, &got,
5354 	ifp->if_lastex = lastx;
5388 	xfs_extnum_t		lastx;		/* last extent index used */
5432 	ep = xfs_bmap_search_extents(ip, bno, whichfork, &eof, &lastx, &got,
5443 		ep = xfs_iext_get_ext(ifp, --lastx);
5458 	while (bno != (xfs_fileoff_t)-1 && bno >= start && lastx >= 0 &&
5465 			if (--lastx < 0)
5467 			ep = xfs_iext_get_ext(ifp, lastx);
5513 					if (--lastx >= 0)
5515 							ifp, lastx), &got);
5535 			error = xfs_bmap_add_extent(ip, lastx, &cur, &del,
5564 					if (--lastx >= 0)
5575 				ASSERT(lastx > 0);
5577 						lastx - 1), &prev);
5589 				error = xfs_bmap_add_extent(ip, lastx - 1, &cur,
5598 				error = xfs_bmap_add_extent(ip, lastx, &cur,
5652 		error = xfs_bmap_del_extent(ip, tp, lastx, flist, cur, &del,
5659 		lastx = ifp->if_lastex;
5664 		ep = xfs_iext_get_ext(ifp, lastx);
5666 			if (lastx >= XFS_IFORK_NEXTENTS(ip, whichfork) ||
5668 				if (--lastx >= 0)
5669 					ep = xfs_iext_get_ext(ifp, lastx);
5671 			if (lastx >= 0)
5676 	ifp->if_lastex = lastx;
5677 	*done = bno == (xfs_fileoff_t)-1 || bno < start || lastx < 0;