mm/m32r: 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: Hirokazu Takata <takata@linux-m32r.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>

diff --git a/arch/m32r/mm/discontig.c b/arch/m32r/mm/discontig.c
index 2c468e8b5853203099f2125c081d81fd9b6b665e..27196303ce36e3ba9c83e8574a99f2d0a36717b2 100644 (file)
--- a/arch/m32r/mm/discontig.c
+++ b/arch/m32r/mm/discontig.c
@@ -129,11 +129,10 @@ unsigned long __init setup_memory(void)
 #define START_PFN(nid)         (NODE_DATA(nid)->bdata->node_min_pfn)
 #define MAX_LOW_PFN(nid)       (NODE_DATA(nid)->bdata->node_low_pfn)
 
-unsigned long __init zone_sizes_init(void)
+void __init zone_sizes_init(void)
 {
        unsigned long zones_size[MAX_NR_ZONES], zholes_size[MAX_NR_ZONES];
        unsigned long low, start_pfn;
-       unsigned long holes = 0;
        int nid, i;
        mem_prof_t *mp;
 
@@ -147,7 +146,6 @@ unsigned long __init zone_sizes_init(void)
                low = MAX_LOW_PFN(nid);
                zones_size[ZONE_DMA] = low - start_pfn;
                zholes_size[ZONE_DMA] = mp->holes;
-               holes += zholes_size[ZONE_DMA];
 
                node_set_state(nid, N_NORMAL_MEMORY);
                free_area_init_node(nid, zones_size, start_pfn, zholes_size);
@@ -161,6 +159,4 @@ unsigned long __init zone_sizes_init(void)
        NODE_DATA(1)->node_zones->watermark[WMARK_MIN] = 0;
        NODE_DATA(1)->node_zones->watermark[WMARK_LOW] = 0;
        NODE_DATA(1)->node_zones->watermark[WMARK_HIGH] = 0;
-
-       return holes;
 }

diff --git a/arch/m32r/mm/init.c b/arch/m32r/mm/init.c
index a501838233abb5aa9bcc281a24e683dd9fa2935f..a4f8d934e25fb7a5de13b7a9c2bf2abf29fe680a 100644 (file)
--- a/arch/m32r/mm/init.c
+++ b/arch/m32r/mm/init.c
@@ -40,7 +40,6 @@ unsigned long mmu_context_cache_dat;
 #else
 unsigned long mmu_context_cache_dat[NR_CPUS];
 #endif
-static unsigned long hole_pages;
 
 /*
  * function prototype
@@ -57,7 +56,7 @@ void free_initrd_mem(unsigned long, unsigned long);
 #define MAX_LOW_PFN(nid)       (NODE_DATA(nid)->bdata->node_low_pfn)
 
 #ifndef CONFIG_DISCONTIGMEM
-unsigned long __init zone_sizes_init(void)
+void __init zone_sizes_init(void)
 {
        unsigned long  zones_size[MAX_NR_ZONES] = {0, };
        unsigned long  max_dma;
@@ -83,11 +82,9 @@ unsigned long __init zone_sizes_init(void)
 #endif /* CONFIG_MMU */
 
        free_area_init_node(0, zones_size, start_pfn, 0);
-
-       return 0;
 }
 #else  /* CONFIG_DISCONTIGMEM */
-extern unsigned long zone_sizes_init(void);
+extern void zone_sizes_init(void);
 #endif /* CONFIG_DISCONTIGMEM */
 
 /*======================================================================*
@@ -105,24 +102,7 @@ void __init paging_init(void)
        for (i = 0 ; i < USER_PTRS_PER_PGD * 2 ; i++)
                pgd_val(pg_dir[i]) = 0;
 #endif /* CONFIG_MMU */
-       hole_pages = zone_sizes_init();
-}
-
-int __init reservedpages_count(void)
-{
-       int reservedpages, nid, i;
-
-       reservedpages = 0;
-       for_each_online_node(nid) {
-               unsigned long flags;
-               pgdat_resize_lock(NODE_DATA(nid), &flags);
-               for (i = 0 ; i < MAX_LOW_PFN(nid) - START_PFN(nid) ; i++)
-                       if (PageReserved(nid_page_nr(nid, i)))
-                               reservedpages++;
-               pgdat_resize_unlock(NODE_DATA(nid), &flags);
-       }
-
-       return reservedpages;
+       zone_sizes_init();
 }
 
 /*======================================================================*
@@ -131,20 +111,13 @@ int __init reservedpages_count(void)
  *======================================================================*/
 void __init mem_init(void)
 {
-       int codesize, reservedpages, datasize, initsize;
        int nid;
 #ifndef CONFIG_MMU
        extern unsigned long memory_end;
 #endif
 
-       num_physpages = 0;
-       for_each_online_node(nid)
-               num_physpages += MAX_LOW_PFN(nid) - START_PFN(nid) + 1;
-
-       num_physpages -= hole_pages;
-
 #ifndef CONFIG_DISCONTIGMEM
-       max_mapnr = num_physpages;
+       max_mapnr = get_num_physpages();
 #endif /* CONFIG_DISCONTIGMEM */
 
 #ifdef CONFIG_MMU
@@ -160,19 +133,7 @@ void __init mem_init(void)
        for_each_online_node(nid)
                free_all_bootmem_node(NODE_DATA(nid));
 
-       reservedpages = reservedpages_count() - hole_pages;
-       codesize = (unsigned long) &_etext - (unsigned long)&_text;
-       datasize = (unsigned long) &_edata - (unsigned long)&_etext;
-       initsize = (unsigned long) &__init_end - (unsigned long)&__init_begin;
-
-       printk(KERN_INFO "Memory: %luk/%luk available (%dk kernel code, "
-               "%dk reserved, %dk data, %dk init)\n",
-               nr_free_pages() << (PAGE_SHIFT-10),
-               num_physpages << (PAGE_SHIFT-10),
-               codesize >> 10,
-               reservedpages << (PAGE_SHIFT-10),
-               datasize >> 10,
-               initsize >> 10);
+       mem_init_print_info(NULL);
 }
 
 /*======================================================================*