83 	unsigned int i, n_pages = XEN_PFN_UP(size);  in xen_grant_dma_alloc()  local
95 	ret = alloc_pages_exact(n_pages * XEN_PAGE_SIZE, gfp);  in xen_grant_dma_alloc()
101 	if (gnttab_alloc_grant_reference_seq(n_pages, &grant)) {  in xen_grant_dma_alloc()
102 		free_pages_exact(ret, n_pages * XEN_PAGE_SIZE);  in xen_grant_dma_alloc()
106 	for (i = 0; i < n_pages; i++) {  in xen_grant_dma_alloc()
120 	unsigned int i, n_pages = XEN_PFN_UP(size);  in xen_grant_dma_free()  local
132 	for (i = 0; i < n_pages; i++) {  in xen_grant_dma_free()
140 	gnttab_free_grant_reference_seq(grant, n_pages);  in xen_grant_dma_free()
142 	free_pages_exact(vaddr, n_pages * XEN_PAGE_SIZE);  in xen_grant_dma_free()
174 	unsigned int i, n_pages = XEN_PFN_UP(dma_offset + size);  in xen_grant_dma_map_page()  local
188 	if (gnttab_alloc_grant_reference_seq(n_pages, &grant))  in xen_grant_dma_map_page()
191 	for (i = 0; i < n_pages; i++) {  in xen_grant_dma_map_page()
208 	unsigned int i, n_pages = XEN_PFN_UP(dma_offset + size);  in xen_grant_dma_unmap_page()  local
223 	for (i = 0; i < n_pages; i++) {  in xen_grant_dma_unmap_page()
231 	gnttab_free_grant_reference_seq(grant, n_pages);  in xen_grant_dma_unmap_page()