From: Andrew Morton <akpm@osdl.org>

s390: 

In file included from include/linux/vmalloc.h:6,
                 from arch/s390/mm/ioremap.c:16:
include/asm/pgtable.h: In function 'page_test_and_clear_dirty':
include/asm/pgtable.h:643: error: 'mem_map' undeclared (first use in this function)
include/asm/pgtable.h:643: error: (Each undeclared identifier is reported only once

Cc: KAMEZAWA Hiroyuki <kamezawa.hiroyu@jp.fujitsu.com>
Cc: Andy Whitcroft <apw@shadowen.org>
Cc: Dave Hansen <haveblue@us.ibm.com>
Cc: Martin Bligh <mbligh@google.com>
Cc: "Luck, Tony" <tony.luck@intel.com>
Cc: Christoph Lameter <clameter@engr.sgi.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
---

 include/linux/vmalloc.h |    1 +
 1 file changed, 1 insertion(+)

diff -puN include/linux/vmalloc.h~virtual-memmap-on-sparsemem-v3-map-and-unmap-fix-3 include/linux/vmalloc.h
--- a/include/linux/vmalloc.h~virtual-memmap-on-sparsemem-v3-map-and-unmap-fix-3
+++ a/include/linux/vmalloc.h
@@ -2,6 +2,7 @@
 #define _LINUX_VMALLOC_H
 
 #include <linux/spinlock.h>
+#include <linux/mmzone.h>
 #include <asm/page.h>		/* pgprot_t */
 #include <asm/pgtable.h>	/* pud_t */
 
_