X-Git-Url: http://git.cascardo.info/?a=blobdiff_plain;f=mm%2Fgup.c;h=7bf19ffa21999c13fa1f24dc01a6bda77217688c;hb=6fee37df0212f61b9abcc7805d7879fa2c9096d9;hp=b64a36175884e07604b0e216bc2d545a2892dcb7;hpb=98ab7a02046dd239f3f2eb923de0ce117dc29e15;p=cascardo%2Flinux.git

diff --git a/mm/gup.c b/mm/gup.c
index b64a36175884..7bf19ffa2199 100644
--- a/mm/gup.c
+++ b/mm/gup.c
@@ -430,10 +430,8 @@ static int check_vma_flags(struct vm_area_struct *vma, unsigned long gup_flags)
 			 * Anon pages in shared mappings are surprising: now
 			 * just reject it.
 			 */
-			if (!is_cow_mapping(vm_flags)) {
-				WARN_ON_ONCE(vm_flags & VM_MAYWRITE);
+			if (!is_cow_mapping(vm_flags))
 				return -EFAULT;
-			}
 		}
 	} else if (!(vm_flags & VM_READ)) {
 		if (!(gup_flags & FOLL_FORCE))