--- ./mm/mmap.c.vmrssfix	2005-12-13 15:30:05.000000000 +0300
+++ ./mm/mmap.c	2005-12-19 15:40:17.225126176 +0300
@@ -664,7 +664,7 @@ struct vm_area_struct *vma_merge(struct 
 			 * case 7*: prev->vm_rss += area->vm_rss
 			 */
 			if (next && addr == next->vm_start) { /* case 5 */
-				extra_rss = pages_in_vma_range(prev, addr, end);
+				extra_rss = pages_in_vma_range(next, addr, end);
 				next->vm_rss -= extra_rss;
 			}
 			prev->vm_rss += extra_rss;