Merge branch 'x86-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip

* 'x86-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip:
  xen: update mask_rw_pte after kernel page tables init changes
  xen: set max_pfn_mapped to the last pfn mapped
  x86: Cleanup highmap after brk is concluded

Fix up trivial onflict (added header file includes) in
arch/x86/mm/init_64.c

arch/x86/kernel/head64.c

@@ -77,9 +77,6 @@ void __init x86_64_start_kernel(char * real_mode_data)
 	/* Make NULL pointers segfault */
 	zap_identity_mappings();
 
-	/* Cleanup the over mapped high alias */
-	cleanup_highmap();
-
 	max_pfn_mapped = KERNEL_IMAGE_SIZE >> PAGE_SHIFT;
 
 	for (i = 0; i < NUM_EXCEPTION_VECTORS; i++) {

arch/x86/kernel/setup.c

@@ -294,30 +294,11 @@ static void __init init_gbpages(void)
 	else
 		direct_gbpages = 0;
 }
-
-static void __init cleanup_highmap_brk_end(void)
-{
-	pud_t *pud;
-	pmd_t *pmd;
-
-	mmu_cr4_features = read_cr4();
-
-	/*
-	 * _brk_end cannot change anymore, but it and _end may be
-	 * located on different 2M pages. cleanup_highmap(), however,
-	 * can only consider _end when it runs, so destroy any
-	 * mappings beyond _brk_end here.
-	 */
-	pud = pud_offset(pgd_offset_k(_brk_end), _brk_end);
-	pmd = pmd_offset(pud, _brk_end - 1);
-	while (++pmd <= pmd_offset(pud, (unsigned long)_end - 1))
-		pmd_clear(pmd);
-}
 #else
 static inline void init_gbpages(void)
 {
 }
-static inline void cleanup_highmap_brk_end(void)
+static void __init cleanup_highmap(void)
 {
 }
 #endif
@@ -330,8 +311,6 @@ static void __init reserve_brk(void)
 	/* Mark brk area as locked down and no longer taking any
 	   new allocations */
 	_brk_start = 0;
-
-	cleanup_highmap_brk_end();
 }
 
 #ifdef CONFIG_BLK_DEV_INITRD
@@ -950,6 +929,8 @@ void __init setup_arch(char **cmdline_p)
 	 */
 	reserve_brk();
 
+	cleanup_highmap();
+
 	memblock.current_limit = get_max_mapped();
 	memblock_x86_fill();