[PATCH 1/3] x86: Fix typo in mark_rodata_ro

[Yinghai Lu <yinghai@kernel.org>]

In the comment, should use cleanup_highmap().
and also remove not needed cast for _brk_end, as it is
unsigned long.

Signed-off-by: Yinghai Lu <yinghai@kernel.org>

---
 arch/x86/mm/init_64.c |    4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

Index: linux-2.6/arch/x86/mm/init_64.c
===================================================================
--- linux-2.6.orig/arch/x86/mm/init_64.c
+++ linux-2.6/arch/x86/mm/init_64.c
@@ -1145,9 +1145,9 @@ void mark_rodata_ro(void)
 	 * of the PMD will remain mapped executable.
 	 *
 	 * Any PMD which was setup after the one which covers _brk_end
-	 * has been zapped already via cleanup_highmem().
+	 * has been zapped already via cleanup_highmap().
 	 */
-	all_end = roundup((unsigned long)_brk_end, PMD_SIZE);
+	all_end = roundup(_brk_end, PMD_SIZE);
 	set_memory_nx(rodata_start, (all_end - rodata_start) >> PAGE_SHIFT);
 
 	rodata_test();