From 0a4ccc992978ef552dc86ac68bc1ec62cf268e2a Mon Sep 17 00:00:00 2001
From: Heiko Carstens <heiko.carstens@de.ibm.com>
Date: Fri, 2 Nov 2012 13:28:48 +0100
Subject: s390/mm: move kernel_page_present/kernel_map_pages to page_attr.c

Keep related functions together and move to appropriate file.

Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
---
 arch/s390/mm/init.c     | 28 ----------------------------
 arch/s390/mm/pageattr.c | 43 +++++++++++++++++++++++++++++++++++++++++++
 arch/s390/mm/pgtable.c  | 16 ----------------
 3 files changed, 43 insertions(+), 44 deletions(-)

(limited to 'arch/s390/mm')

diff --git a/arch/s390/mm/init.c b/arch/s390/mm/init.c
index c6188ef..ae672f4 100644
--- a/arch/s390/mm/init.c
+++ b/arch/s390/mm/init.c
@@ -158,34 +158,6 @@ void __init mem_init(void)
 	       PFN_ALIGN((unsigned long)&_eshared) - 1);
 }
 
-#ifdef CONFIG_DEBUG_PAGEALLOC
-void kernel_map_pages(struct page *page, int numpages, int enable)
-{
-	pgd_t *pgd;
-	pud_t *pud;
-	pmd_t *pmd;
-	pte_t *pte;
-	unsigned long address;
-	int i;
-
-	for (i = 0; i < numpages; i++) {
-		address = page_to_phys(page + i);
-		pgd = pgd_offset_k(address);
-		pud = pud_offset(pgd, address);
-		pmd = pmd_offset(pud, address);
-		pte = pte_offset_kernel(pmd, address);
-		if (!enable) {
-			__ptep_ipte(address, pte);
-			pte_val(*pte) = _PAGE_TYPE_EMPTY;
-			continue;
-		}
-		*pte = mk_pte_phys(address, __pgprot(_PAGE_TYPE_RW));
-		/* Flush cpu write queue. */
-		mb();
-	}
-}
-#endif
-
 void free_init_pages(char *what, unsigned long begin, unsigned long end)
 {
 	unsigned long addr = begin;
diff --git a/arch/s390/mm/pageattr.c b/arch/s390/mm/pageattr.c
index 73c3da3..29ccee3 100644
--- a/arch/s390/mm/pageattr.c
+++ b/arch/s390/mm/pageattr.c
@@ -105,3 +105,46 @@ int set_memory_x(unsigned long addr, int numpages)
 {
 	return 0;
 }
+
+#ifdef CONFIG_DEBUG_PAGEALLOC
+void kernel_map_pages(struct page *page, int numpages, int enable)
+{
+	unsigned long address;
+	pgd_t *pgd;
+	pud_t *pud;
+	pmd_t *pmd;
+	pte_t *pte;
+	int i;
+
+	for (i = 0; i < numpages; i++) {
+		address = page_to_phys(page + i);
+		pgd = pgd_offset_k(address);
+		pud = pud_offset(pgd, address);
+		pmd = pmd_offset(pud, address);
+		pte = pte_offset_kernel(pmd, address);
+		if (!enable) {
+			__ptep_ipte(address, pte);
+			pte_val(*pte) = _PAGE_TYPE_EMPTY;
+			continue;
+		}
+		*pte = mk_pte_phys(address, __pgprot(_PAGE_TYPE_RW));
+	}
+}
+
+#ifdef CONFIG_HIBERNATION
+bool kernel_page_present(struct page *page)
+{
+	unsigned long addr;
+	int cc;
+
+	addr = page_to_phys(page);
+	asm volatile(
+		"	lra	%1,0(%1)\n"
+		"	ipm	%0\n"
+		"	srl	%0,28"
+		: "=d" (cc), "+a" (addr) : : "cc");
+	return cc == 0;
+}
+#endif /* CONFIG_HIBERNATION */
+
+#endif /* CONFIG_DEBUG_PAGEALLOC */
diff --git a/arch/s390/mm/pgtable.c b/arch/s390/mm/pgtable.c
index c8188a1..ae44d2a 100644
--- a/arch/s390/mm/pgtable.c
+++ b/arch/s390/mm/pgtable.c
@@ -881,22 +881,6 @@ int s390_enable_sie(void)
 }
 EXPORT_SYMBOL_GPL(s390_enable_sie);
 
-#if defined(CONFIG_DEBUG_PAGEALLOC) && defined(CONFIG_HIBERNATION)
-bool kernel_page_present(struct page *page)
-{
-	unsigned long addr;
-	int cc;
-
-	addr = page_to_phys(page);
-	asm volatile(
-		"	lra	%1,0(%1)\n"
-		"	ipm	%0\n"
-		"	srl	%0,28"
-		: "=d" (cc), "+a" (addr) : : "cc");
-	return cc == 0;
-}
-#endif /* CONFIG_HIBERNATION && CONFIG_DEBUG_PAGEALLOC */
-
 #ifdef CONFIG_TRANSPARENT_HUGEPAGE
 int pmdp_clear_flush_young(struct vm_area_struct *vma, unsigned long address,
 			   pmd_t *pmdp)
-- 
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