mmu notifier: No need to invalidate_page in mremap

We can do_munmap which calls unmap_region which in turn performs
a call to invalidate_range().

Signed-off-by: Christoph Lameter <clameter@sgi.com>

---
 mm/mremap.c |    2 --
 1 file changed, 2 deletions(-)

Index: linux-2.6/mm/mremap.c
===================================================================
--- linux-2.6.orig/mm/mremap.c	2008-01-25 14:05:39.000000000 -0800
+++ linux-2.6/mm/mremap.c	2008-01-25 14:05:53.000000000 -0800
@@ -18,7 +18,6 @@
 #include <linux/highmem.h>
 #include <linux/security.h>
 #include <linux/syscalls.h>
-#include <linux/mmu_notifier.h>
 
 #include <asm/uaccess.h>
 #include <asm/cacheflush.h>
@@ -106,7 +105,6 @@ static void move_ptes(struct vm_area_str
 		if (pte_none(*old_pte))
 			continue;
 		pte = ptep_clear_flush(vma, old_addr, old_pte);
-		mmu_notifier(invalidate_page, mm, old_addr);
 		pte = move_pte(pte, new_vma->vm_page_prot, old_addr, new_addr);
 		set_pte_at(mm, new_addr, new_pte, pte);
 	}