mm/IA64: prepare for removing num_physpages and simplify mem_init()

Prepare for removing num_physpages and simplify mem_init().

Signed-off-by: Jiang Liu <jiang.liu@huawei.com>
Cc: Tony Luck <tony.luck@intel.com>
Cc: Fenghua Yu <fenghua.yu@intel.com>
Cc: Zhang Yanfei <zhangyanfei@cn.fujitsu.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

3 files changed, 1 insertions, 40 deletions

diff --git a/arch/ia64/mm/contig.c b/arch/ia64/mm/contig.c
index 67c59ebec899..e4a6a5366dea 100644
--- a/arch/ia64/mm/contig.c
+++ b/arch/ia64/mm/contig.c
@@ -295,14 +295,6 @@ find_memory (void)
         alloc_per_cpu_data();
 }
 
-static int count_pages(u64 start, u64 end, void *arg)
-{
-        unsigned long *count = arg;
-
-        *count += (end - start) >> PAGE_SHIFT;
-        return 0;
-}
-
 /*
  * Set up the page tables.
  */
@@ -313,9 +305,6 @@ paging_init (void)
         unsigned long max_dma;
         unsigned long max_zone_pfns[MAX_NR_ZONES];
 
-        num_physpages = 0;
-        efi_memmap_walk(count_pages, &num_physpages);
-
         memset(max_zone_pfns, 0, sizeof(max_zone_pfns));
 #ifdef CONFIG_ZONE_DMA
         max_dma = virt_to_phys((void *) MAX_DMA_ADDRESS) >> PAGE_SHIFT;
diff --git a/arch/ia64/mm/discontig.c b/arch/ia64/mm/discontig.c
index ae4db4bd6d97..58550b8f7d40 100644
--- a/arch/ia64/mm/discontig.c
+++ b/arch/ia64/mm/discontig.c
@@ -37,7 +37,6 @@ struct early_node_data {
         struct ia64_node_data *node_data;
         unsigned long pernode_addr;
         unsigned long pernode_size;
-        unsigned long num_physpages;
 #ifdef CONFIG_ZONE_DMA
         unsigned long num_dma_physpages;
 #endif
@@ -732,7 +731,6 @@ static __init int count_node_pages(unsigned long start, unsigned long len, int n
 {
         unsigned long end = start + len;
 
-        mem_data[node].num_physpages += len >> PAGE_SHIFT;
 #ifdef CONFIG_ZONE_DMA
         if (start <= __pa(MAX_DMA_ADDRESS))
                 mem_data[node].num_dma_physpages +=
@@ -778,7 +776,6 @@ void __init paging_init(void)
 #endif
 
         for_each_online_node(node) {
-                num_physpages += mem_data[node].num_physpages;
                 pfn_offset = mem_data[node].min_pfn;
 
 #ifdef CONFIG_VIRTUAL_MEM_MAP
diff --git a/arch/ia64/mm/init.c b/arch/ia64/mm/init.c
index d141f7ea0be5..2d372b4c5f70 100644
--- a/arch/ia64/mm/init.c
+++ b/arch/ia64/mm/init.c
@@ -545,19 +545,6 @@ int __init register_active_ranges(u64 start, u64 len, int nid)
         return 0;
 }
 
-static int __init
-count_reserved_pages(u64 start, u64 end, void *arg)
-{
-        unsigned long num_reserved = 0;
-        unsigned long *count = arg;
-
-        for (; start < end; start += PAGE_SIZE)
-                if (PageReserved(virt_to_page(start)))
-                        ++num_reserved;
-        *count += num_reserved;
-        return 0;
-}
-
 int
 find_max_min_low_pfn (u64 start, u64 end, void *arg)
 {
@@ -596,7 +583,6 @@ __setup("nolwsys", nolwsys_setup);
 void __init
 mem_init (void)
 {
-        long reserved_pages, codesize, datasize, initsize;
         pg_data_t *pgdat;
         int i;
 
@@ -624,18 +610,7 @@ mem_init (void)
                 if (pgdat->bdata->node_bootmem_map)
                         free_all_bootmem_node(pgdat);
 
-        reserved_pages = 0;
-        efi_memmap_walk(count_reserved_pages, &reserved_pages);
-
-        codesize =  (unsigned long) _etext - (unsigned long) _stext;
-        datasize =  (unsigned long) _edata - (unsigned long) _etext;
-        initsize =  (unsigned long) __init_end - (unsigned long) __init_begin;
-
-        printk(KERN_INFO "Memory: %luk/%luk available (%luk code, %luk reserved, "
-               "%luk data, %luk init)\n", nr_free_pages() << (PAGE_SHIFT - 10),
-               num_physpages << (PAGE_SHIFT - 10), codesize >> 10,
-               reserved_pages << (PAGE_SHIFT - 10), datasize >> 10, initsize >> 10);
-
+        mem_init_print_info(NULL);
 
         /*
          * For fsyscall entrpoints with no light-weight handler, use the ordinary