[PATCH] msync shouldn't go over bss sections

[Alexander Nyberg]

This changes the behaviour of msync_interval() to make it impossible to
try to sys_msync() anything not file mapped.


--- mm/msync_orig.c     2004-05-23 21:31:32.000000000 +0200
+++ mm/msync.c  2004-05-24 16:10:24.000000000 +0200
@@ -137,7 +137,7 @@ static int filemap_sync(struct vm_area_s
 static int msync_interval(struct vm_area_struct * vma,
        unsigned long start, unsigned long end, int flags)
 {
-       int ret = 0;
+       int ret = -ENOMEM;
        struct file * file = vma->vm_file;
  
        if ((flags & MS_INVALIDATE) && (vma->vm_flags & VM_LOCKED))

-
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