1361 	int rahead, rbehind;  in swap_pager_getpages_locked()  local
1368 	if (!swp_pager_haspage_iter(pindex, &rbehind, &rahead, blks)) {  in swap_pager_getpages_locked()
1385 		rbehind = 0;  in swap_pager_getpages_locked()
1388 	rbehind = a_rbehind != NULL ? imin(*a_rbehind, rbehind) : 0;  in swap_pager_getpages_locked()
1391 	vm_object_prepare_buf_pages(object, bp->b_pages, count, &rbehind,  in swap_pager_getpages_locked()
1393 	bp->b_npages = rbehind + count + rahead;  in swap_pager_getpages_locked()
1396 	bp->b_blkno = swp_pager_meta_lookup(blks, pindex - rbehind);  in swap_pager_getpages_locked()
1406 		*a_rbehind = rbehind;  in swap_pager_getpages_locked()
1416 	bp->b_pgbefore = rbehind;  in swap_pager_getpages_locked()
1474     int *rbehind, int *rahead)  in swap_pager_getpages()  argument
1482 	return (swap_pager_getpages_locked(&blks, object, ma, count, rbehind,  in swap_pager_getpages()
1494     int *rbehind, int *rahead, pgo_getpages_iodone_t iodone, void *arg)  in swap_pager_getpages_async()  argument
1498 	r = swap_pager_getpages(object, ma, count, rbehind, rahead);  in swap_pager_getpages_async()