x86: unify 64-bit UMA and NUMA paging_init()

64-bit UMA and NUMA versions of paging_init() are almost identical.
Therefore, merge the copy in mm/numa_64.c to mm/init_64.c to remove
duplicate code.

[ Impact: cleanup ]

Signed-off-by: Pekka Enberg <penberg@cs.helsinki.fi>
LKML-Reference: <1241699741.17846.30.camel@penberg-laptop>
Signed-off-by: Ingo Molnar <mingo@elte.hu>

diff --git a/arch/x86/mm/init_64.c b/arch/x86/mm/init_64.c
index 6a1a573..be7e127 100644 (file)
--- a/arch/x86/mm/init_64.c
+++ b/arch/x86/mm/init_64.c
@@ -585,6 +585,7 @@ void __init initmem_init(unsigned long start_pfn, unsigned long end_pfn)
        early_res_to_bootmem(0, end_pfn<<PAGE_SHIFT);
        reserve_bootmem(bootmap, bootmap_size, BOOTMEM_DEFAULT);
 }
+#endif
 
 void __init paging_init(void)
 {
@@ -595,11 +596,14 @@ void __init paging_init(void)
        max_zone_pfns[ZONE_DMA32] = MAX_DMA32_PFN;
        max_zone_pfns[ZONE_NORMAL] = max_pfn;
 
+#ifdef CONFIG_NUMA
+       sparse_memory_present_with_active_regions(MAX_NUMNODES);
+#else
        memory_present(0, 0, max_pfn);
+#endif
        sparse_init();
        free_area_init_nodes(max_zone_pfns);
 }
-#endif
 
 /*
  * Memory hotplug specific functions

diff --git a/arch/x86/mm/numa_64.c b/arch/x86/mm/numa_64.c
index 2d05a12..fb61d81 100644 (file)
--- a/arch/x86/mm/numa_64.c
+++ b/arch/x86/mm/numa_64.c
@@ -578,21 +578,6 @@ unsigned long __init numa_free_all_bootmem(void)
        return pages;
 }
 
-void __init paging_init(void)
-{
-       unsigned long max_zone_pfns[MAX_NR_ZONES];
-
-       memset(max_zone_pfns, 0, sizeof(max_zone_pfns));
-       max_zone_pfns[ZONE_DMA] = MAX_DMA_PFN;
-       max_zone_pfns[ZONE_DMA32] = MAX_DMA32_PFN;
-       max_zone_pfns[ZONE_NORMAL] = max_pfn;
-
-       sparse_memory_present_with_active_regions(MAX_NUMNODES);
-       sparse_init();
-
-       free_area_init_nodes(max_zone_pfns);
-}
-
 static __init int numa_setup(char *opt)
 {
        if (!opt)