X-Git-Url: http://git.onelab.eu/?a=blobdiff_plain;f=arch%2Falpha%2Fmm%2Fnuma.c;h=e3e3806a6f254f02b3cec0d1a02fba5fc05639c2;hb=97bf2856c6014879bd04983a3e9dfcdac1e7fe85;hp=70362f41613654e425f2fc7f957d6f713c9ddbe5;hpb=5273a3df6485dc2ad6aa7ddd441b9a21970f003b;p=linux-2.6.git

diff --git a/arch/alpha/mm/numa.c b/arch/alpha/mm/numa.c
index 70362f416..e3e3806a6 100644
--- a/arch/alpha/mm/numa.c
+++ b/arch/alpha/mm/numa.c
@@ -6,19 +6,21 @@
  *  Copyright (C) 2001 Andrea Arcangeli <andrea@suse.de> SuSE
  */
 
-#include <linux/config.h>
 #include <linux/types.h>
 #include <linux/kernel.h>
 #include <linux/mm.h>
 #include <linux/bootmem.h>
 #include <linux/swap.h>
 #include <linux/initrd.h>
+#include <linux/pfn.h>
+#include <linux/module.h>
 
 #include <asm/hwrpb.h>
 #include <asm/pgalloc.h>
 
 pg_data_t node_data[MAX_NUMNODES];
 bootmem_data_t node_bdata[MAX_NUMNODES];
+EXPORT_SYMBOL(node_data);
 
 #undef DEBUG_DISCONTIG
 #ifdef DEBUG_DISCONTIG
@@ -27,9 +29,6 @@ bootmem_data_t node_bdata[MAX_NUMNODES];
 #define DBGDCONT(args...)
 #endif
 
-#define PFN_UP(x)       (((x) + PAGE_SIZE-1) >> PAGE_SHIFT)
-#define PFN_DOWN(x)     ((x) >> PAGE_SHIFT)
-#define PFN_PHYS(x)     ((x) << PAGE_SHIFT)
 #define for_each_mem_cluster(memdesc, cluster, i)		\
 	for ((cluster) = (memdesc)->cluster, (i) = 0;		\
 	     (i) < (memdesc)->numclusters; (i)++, (cluster)++)
@@ -246,7 +245,7 @@ setup_memory_node(int nid, void *kernel_end)
 	reserve_bootmem_node(NODE_DATA(nid), PFN_PHYS(bootmap_start), bootmap_size);
 	printk(" reserving pages %ld:%ld\n", bootmap_start, bootmap_start+PFN_UP(bootmap_size));
 
-	numnodes++;
+	node_set_online(nid);
 }
 
 void __init
@@ -256,7 +255,7 @@ setup_memory(void *kernel_end)
 
 	show_mem_layout();
 
-	numnodes = 0;
+	nodes_clear(node_online_map);
 
 	min_low_pfn = ~0UL;
 	max_low_pfn = 0UL;
@@ -279,8 +278,8 @@ setup_memory(void *kernel_end)
 				       initrd_end,
 				       phys_to_virt(PFN_PHYS(max_low_pfn)));
 		} else {
-			nid = NODE_DATA(kvaddr_to_nid(initrd_start));
-			reserve_bootmem_node(nid,
+			nid = kvaddr_to_nid(initrd_start);
+			reserve_bootmem_node(NODE_DATA(nid),
 					     virt_to_phys((void *)initrd_start),
 					     INITRD_SIZE);
 		}
@@ -303,7 +302,7 @@ void __init paging_init(void)
 	 */
 	dma_local_pfn = virt_to_phys((char *)MAX_DMA_ADDRESS) >> PAGE_SHIFT;
 
-	for (nid = 0; nid < numnodes; nid++) {
+	for_each_online_node(nid) {
 		unsigned long start_pfn = node_bdata[nid].node_boot_start >> PAGE_SHIFT;
 		unsigned long end_pfn = node_bdata[nid].node_low_pfn;
 
@@ -313,7 +312,7 @@ void __init paging_init(void)
 			zones_size[ZONE_DMA] = dma_local_pfn;
 			zones_size[ZONE_NORMAL] = (end_pfn - start_pfn) - dma_local_pfn;
 		}
-		free_area_init_node(nid, NODE_DATA(nid), NULL, zones_size, start_pfn, NULL);
+		free_area_init_node(nid, NODE_DATA(nid), zones_size, start_pfn, NULL);
 	}
 
 	/* Initialize the kernel's ZERO_PGE. */
@@ -327,21 +326,19 @@ void __init mem_init(void)
 	extern char _text, _etext, _data, _edata;
 	extern char __init_begin, __init_end;
 	unsigned long nid, i;
-	struct page * lmem_map;
-
 	high_memory = (void *) __va(max_low_pfn << PAGE_SHIFT);
 
 	reservedpages = 0;
-	for (nid = 0; nid < numnodes; nid++) {
+	for_each_online_node(nid) {
 		/*
 		 * This will free up the bootmem, ie, slot 0 memory
 		 */
 		totalram_pages += free_all_bootmem_node(NODE_DATA(nid));
 
-		lmem_map = node_mem_map(nid);
 		pfn = NODE_DATA(nid)->node_start_pfn;
 		for (i = 0; i < node_spanned_pages(nid); i++, pfn++)
-			if (page_is_ram(pfn) && PageReserved(lmem_map+i))
+			if (page_is_ram(pfn) &&
+			    PageReserved(nid_page_nr(nid, i)))
 				reservedpages++;
 	}
 
@@ -371,21 +368,24 @@ show_mem(void)
 
 	printk("\nMem-info:\n");
 	show_free_areas();
-	printk("Free swap:       %6dkB\n",nr_swap_pages<<(PAGE_SHIFT-10));
-	for (nid = 0; nid < numnodes; nid++) {
-		struct page * lmem_map = node_mem_map(nid);
+	printk("Free swap:       %6ldkB\n", nr_swap_pages<<(PAGE_SHIFT-10));
+	for_each_online_node(nid) {
+		unsigned long flags;
+		pgdat_resize_lock(NODE_DATA(nid), &flags);
 		i = node_spanned_pages(nid);
 		while (i-- > 0) {
+			struct page *page = nid_page_nr(nid, i);
 			total++;
-			if (PageReserved(lmem_map+i))
+			if (PageReserved(page))
 				reserved++;
-			else if (PageSwapCache(lmem_map+i))
+			else if (PageSwapCache(page))
 				cached++;
-			else if (!page_count(lmem_map+i))
+			else if (!page_count(page))
 				free++;
 			else
-				shared += atomic_read(&lmem_map[i].count) - 1;
+				shared += page_count(page) - 1;
 		}
+		pgdat_resize_unlock(NODE_DATA(nid), &flags);
 	}
 	printk("%ld pages of RAM\n",total);
 	printk("%ld free pages\n",free);