[PATCH] Additions to .data.read_mostly section

[linux-2.6] / arch / x86_64 / mm / numa.c

diff --git a/arch/x86_64/mm/numa.c b/arch/x86_64/mm/numa.c
index 70cb2904a90f9dd8c9310bb368976bc67124d784..04f7a33e144c4bbbd05befd65d6c396184e6e75d 100644 (file)
--- a/arch/x86_64/mm/numa.c
+++ b/arch/x86_64/mm/numa.c
@@ -22,14 +22,14 @@
 #define Dprintk(x...)
 #endif
 
-struct pglist_data *node_data[MAX_NUMNODES];
+struct pglist_data *node_data[MAX_NUMNODES] __read_mostly;
 bootmem_data_t plat_node_bdata[MAX_NUMNODES];
 
 int memnode_shift;
 u8  memnodemap[NODEMAPSIZE];
 
-unsigned char cpu_to_node[NR_CPUS] = { [0 ... NR_CPUS-1] = NUMA_NO_NODE };
-cpumask_t     node_to_cpumask[MAX_NUMNODES];
+unsigned char cpu_to_node[NR_CPUS] __read_mostly = { [0 ... NR_CPUS-1] = NUMA_NO_NODE };
+cpumask_t     node_to_cpumask[MAX_NUMNODES] __read_mostly;
 
 int numa_off __initdata;
 
@@ -126,9 +126,11 @@ void __init setup_node_zones(int nodeid)
 { 
        unsigned long start_pfn, end_pfn; 
        unsigned long zones[MAX_NR_ZONES];
+       unsigned long holes[MAX_NR_ZONES];
        unsigned long dma_end_pfn;
 
        memset(zones, 0, sizeof(unsigned long) * MAX_NR_ZONES); 
+       memset(holes, 0, sizeof(unsigned long) * MAX_NR_ZONES);
 
        start_pfn = node_start_pfn(nodeid);
        end_pfn = node_end_pfn(nodeid);
@@ -139,13 +141,17 @@ void __init setup_node_zones(int nodeid)
        dma_end_pfn = __pa(MAX_DMA_ADDRESS) >> PAGE_SHIFT; 
        if (start_pfn < dma_end_pfn) { 
                zones[ZONE_DMA] = dma_end_pfn - start_pfn;
+               holes[ZONE_DMA] = e820_hole_size(start_pfn, dma_end_pfn);
                zones[ZONE_NORMAL] = end_pfn - dma_end_pfn; 
+               holes[ZONE_NORMAL] = e820_hole_size(dma_end_pfn, end_pfn);
+
        } else { 
                zones[ZONE_NORMAL] = end_pfn - start_pfn; 
+               holes[ZONE_NORMAL] = e820_hole_size(start_pfn, end_pfn);
        } 
     
        free_area_init_node(nodeid, NODE_DATA(nodeid), zones,
-                           start_pfn, NULL); 
+                           start_pfn, holes);
 } 
 
 void __init numa_init_array(void)