[S390] sparsemem vmemmap: initialize memmap.

Let's just use the generic vmmemmap_alloc_block() function which
always returns initialized memory.

Cc: Gerald Schaefer <gerald.schaefer@de.ibm.com>
Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>

diff --git a/arch/s390/mm/vmem.c b/arch/s390/mm/vmem.c
index beccacf..ea28048 100644 (file)
--- a/arch/s390/mm/vmem.c
+++ b/arch/s390/mm/vmem.c
@@ -27,19 +27,12 @@ struct memory_segment {
 
 static LIST_HEAD(mem_segs);
 
-static void __ref *vmem_alloc_pages(unsigned int order)
-{
-       if (slab_is_available())
-               return (void *)__get_free_pages(GFP_KERNEL, order);
-       return alloc_bootmem_pages((1 << order) * PAGE_SIZE);
-}
-
-static inline pud_t *vmem_pud_alloc(void)
+static pud_t *vmem_pud_alloc(void)
 {
        pud_t *pud = NULL;
 
 #ifdef CONFIG_64BIT
-       pud = vmem_alloc_pages(2);
+       pud = vmemmap_alloc_block(PAGE_SIZE * 4, 0);
        if (!pud)
                return NULL;
        clear_table((unsigned long *) pud, _REGION3_ENTRY_EMPTY, PAGE_SIZE * 4);
@@ -47,12 +40,12 @@ static inline pud_t *vmem_pud_alloc(void)
        return pud;
 }
 
-static inline pmd_t *vmem_pmd_alloc(void)
+static pmd_t *vmem_pmd_alloc(void)
 {
        pmd_t *pmd = NULL;
 
 #ifdef CONFIG_64BIT
-       pmd = vmem_alloc_pages(2);
+       pmd = vmemmap_alloc_block(PAGE_SIZE * 4, 0);
        if (!pmd)
                return NULL;
        clear_table((unsigned long *) pmd, _SEGMENT_ENTRY_EMPTY, PAGE_SIZE * 4);
@@ -60,7 +53,7 @@ static inline pmd_t *vmem_pmd_alloc(void)
        return pmd;
 }
 
-static pte_t __init_refok *vmem_pte_alloc(void)
+static pte_t __ref *vmem_pte_alloc(void)
 {
        pte_t *pte;
 
@@ -214,7 +207,7 @@ int __meminit vmemmap_populate(struct page *start, unsigned long nr, int node)
                if (pte_none(*pt_dir)) {
                        unsigned long new_page;
 
-                       new_page =__pa(vmem_alloc_pages(0));
+                       new_page =__pa(vmemmap_alloc_block(PAGE_SIZE, 0));
                        if (!new_page)
                                goto out;
                        pte = pfn_pte(new_page >> PAGE_SHIFT, PAGE_KERNEL);