X-Git-Url: https://err.no/cgi-bin/gitweb.cgi?a=blobdiff_plain;f=mm%2Fmprotect.c;h=a5bf31c273757848ae7614bd9fc3c8595c493705;hb=45e519052e8f583a709edd442a23f59581d3fe42;hp=1d4d69790e59920e8876971dc0ed8adeb48175b8;hpb=fc8a327db6c46de783b1a4276d846841b9abc24c;p=linux-2.6

diff --git a/mm/mprotect.c b/mm/mprotect.c
index 1d4d69790e..a5bf31c273 100644
--- a/mm/mprotect.c
+++ b/mm/mprotect.c
@@ -26,6 +26,13 @@
 #include <asm/cacheflush.h>
 #include <asm/tlbflush.h>
 
+#ifndef pgprot_modify
+static inline pgprot_t pgprot_modify(pgprot_t oldprot, pgprot_t newprot)
+{
+	return newprot;
+}
+#endif
+
 static void change_pte_range(struct mm_struct *mm, pmd_t *pmd,
 		unsigned long addr, unsigned long end, pgprot_t newprot,
 		int dirty_accountable)
@@ -192,11 +199,11 @@ success:
 	 * held in write mode.
 	 */
 	vma->vm_flags = newflags;
-	vma->vm_page_prot = protection_map[newflags &
-		(VM_READ|VM_WRITE|VM_EXEC|VM_SHARED)];
+	vma->vm_page_prot = pgprot_modify(vma->vm_page_prot,
+					  vm_get_page_prot(newflags));
+
 	if (vma_wants_writenotify(vma)) {
-		vma->vm_page_prot = protection_map[newflags &
-			(VM_READ|VM_WRITE|VM_EXEC)];
+		vma->vm_page_prot = vm_get_page_prot(newflags & ~VM_SHARED);
 		dirty_accountable = 1;
 	}