aboutsummaryrefslogtreecommitdiffstats
path: root/drivers/xen/gntdev.c
diff options
context:
space:
mode:
Diffstat (limited to 'drivers/xen/gntdev.c')
-rw-r--r--drivers/xen/gntdev.c8
1 files changed, 5 insertions, 3 deletions
diff --git a/drivers/xen/gntdev.c b/drivers/xen/gntdev.c
index fa6355a97081..888d76307d59 100644
--- a/drivers/xen/gntdev.c
+++ b/drivers/xen/gntdev.c
@@ -211,10 +211,12 @@ static int find_grant_ptes(pte_t *pte, pgtable_t token,
211 BUG_ON(pgnr >= map->count); 211 BUG_ON(pgnr >= map->count);
212 pte_maddr = (u64)pfn_to_mfn(page_to_pfn(token)) << PAGE_SHIFT; 212 pte_maddr = (u64)pfn_to_mfn(page_to_pfn(token)) << PAGE_SHIFT;
213 pte_maddr += (unsigned long)pte & ~PAGE_MASK; 213 pte_maddr += (unsigned long)pte & ~PAGE_MASK;
214 gnttab_set_map_op(&map->map_ops[pgnr], pte_maddr, map->flags, 214 gnttab_set_map_op(&map->map_ops[pgnr], pte_maddr,
215 GNTMAP_contains_pte | map->flags,
215 map->grants[pgnr].ref, 216 map->grants[pgnr].ref,
216 map->grants[pgnr].domid); 217 map->grants[pgnr].domid);
217 gnttab_set_unmap_op(&map->unmap_ops[pgnr], pte_maddr, map->flags, 218 gnttab_set_unmap_op(&map->unmap_ops[pgnr], pte_maddr,
219 GNTMAP_contains_pte | map->flags,
218 0 /* handle */); 220 0 /* handle */);
219 return 0; 221 return 0;
220} 222}
@@ -569,7 +571,7 @@ static int gntdev_mmap(struct file *flip, struct vm_area_struct *vma)
569 vma->vm_private_data = map; 571 vma->vm_private_data = map;
570 map->vma = vma; 572 map->vma = vma;
571 573
572 map->flags = GNTMAP_host_map | GNTMAP_application_map | GNTMAP_contains_pte; 574 map->flags = GNTMAP_host_map | GNTMAP_application_map;
573 if (!(vma->vm_flags & VM_WRITE)) 575 if (!(vma->vm_flags & VM_WRITE))
574 map->flags |= GNTMAP_readonly; 576 map->flags |= GNTMAP_readonly;
575 577