X-Git-Url: http://git.rot13.org/?a=blobdiff_plain;f=mm%2Fmadvise.c;h=2b7cf0400a217cd453641eaf097d1291125e1431;hb=2c26c9e6b4993a1a1231849feff4b6518a4fc239;hp=4454936f87d1b6fb2fde25e1570a2748ea4a16b0;hpb=e3e3679cfc1c6689e035f6d69606253b1eda63ca;p=powerpc.git

diff --git a/mm/madvise.c b/mm/madvise.c
index 4454936f87..2b7cf0400a 100644
--- a/mm/madvise.c
+++ b/mm/madvise.c
@@ -83,6 +83,9 @@ static long madvise_willneed(struct vm_area_struct * vma,
 {
 	struct file *file = vma->vm_file;
 
+	if (!file)
+		return -EBADF;
+
 	if (file->f_mapping->a_ops->get_xip_page) {
 		/* no bad return value, but ignore advice */
 		return 0;
@@ -123,7 +126,7 @@ static long madvise_dontneed(struct vm_area_struct * vma,
 			     unsigned long start, unsigned long end)
 {
 	*prev = vma;
-	if ((vma->vm_flags & VM_LOCKED) || is_vm_hugetlb_page(vma))
+	if (vma->vm_flags & (VM_LOCKED|VM_HUGETLB|VM_PFNMAP))
 		return -EINVAL;
 
 	if (unlikely(vma->vm_flags & VM_NONLINEAR)) {
@@ -141,11 +144,7 @@ static long
 madvise_vma(struct vm_area_struct *vma, struct vm_area_struct **prev,
 		unsigned long start, unsigned long end, int behavior)
 {
-	struct file *filp = vma->vm_file;
-	long error = -EBADF;
-
-	if (!filp)
-		goto  out;
+	long error;
 
 	switch (behavior) {
 	case MADV_NORMAL:
@@ -166,8 +165,6 @@ madvise_vma(struct vm_area_struct *vma, struct vm_area_struct **prev,
 		error = -EINVAL;
 		break;
 	}
-		
-out:
 	return error;
 }