[patch] correct vm_page_prot on stack pages

[David Mosberger]

The patch below is needed to make it possible to map stack pages
without execution permission (as we do on ia64).

	--david

diff -Nru a/fs/exec.c b/fs/exec.c
--- a/fs/exec.c	Wed Apr  9 14:49:49 2003
+++ b/fs/exec.c	Wed Apr  9 14:49:49 2003
@@ -407,7 +407,7 @@
 		mpnt->vm_start = PAGE_MASK & (unsigned long) bprm->p;
 		mpnt->vm_end = STACK_TOP;
 #endif
-		mpnt->vm_page_prot = PAGE_COPY;
+		mpnt->vm_page_prot = protection_map[VM_STACK_FLAGS & 0x7];
 		mpnt->vm_flags = VM_STACK_FLAGS;
 		mpnt->vm_ops = NULL;
 		mpnt->vm_pgoff = 0;