[S390] Use add_active_range() and free_area_init_nodes().

Size zones and holes in an architecture independent manner for s390.

Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>

1 files changed, 6 insertions, 17 deletions

diff --git a/arch/s390/mm/init.c b/arch/s390/mm/init.c
index 5ea12a573cad..aa39591ca130 100644
--- a/arch/s390/mm/init.c
+++ b/arch/s390/mm/init.c
@@ -106,8 +106,8 @@ static void __init setup_ro_region(void)
         }
 }
 
-extern unsigned long __initdata zholes_size[];
 extern void vmem_map_init(void);
+
 /*
  * paging_init() sets up the page tables
  */
@@ -117,8 +117,7 @@ void __init paging_init(void)
         int i;
         unsigned long pgdir_k;
         static const int ssm_mask = 0x04000000L;
-        unsigned long zones_size[MAX_NR_ZONES];
-        unsigned long dma_pfn, high_pfn;
+        unsigned long max_zone_pfns[MAX_NR_ZONES];
 
         pg_dir = swapper_pg_dir;
         
@@ -142,20 +141,10 @@ void __init paging_init(void)
         __ctl_load(pgdir_k, 13, 13);
         __raw_local_irq_ssm(ssm_mask);
 
-        memset(zones_size, 0, sizeof(zones_size));
-        dma_pfn = MAX_DMA_ADDRESS >> PAGE_SHIFT;
-        high_pfn = max_low_pfn;
-
-        if (dma_pfn > high_pfn)
-                zones_size[ZONE_DMA] = high_pfn;
-        else {
-                zones_size[ZONE_DMA] = dma_pfn;
-                zones_size[ZONE_NORMAL] = high_pfn - dma_pfn;
-        }
-
-        /* Initialize mem_map[].  */
-        free_area_init_node(0, &contig_page_data, zones_size,
-                            __pa(PAGE_OFFSET) >> PAGE_SHIFT, zholes_size);
+        memset(max_zone_pfns, 0, sizeof(max_zone_pfns));
+        max_zone_pfns[ZONE_DMA] = PFN_DOWN(MAX_DMA_ADDRESS);
+        max_zone_pfns[ZONE_NORMAL] = max_low_pfn;
+        free_area_init_nodes(max_zone_pfns);
 }
 
 void __init mem_init(void)