[PATCH] pgdat allocation for new node add (specify node id)

[linux-2.6-omap-h63xx.git] / arch / ia64 / mm / init.c

diff --git a/arch/ia64/mm/init.c b/arch/ia64/mm/init.c
index b38b6d213c158ad0651a20a343e4a3f8327d7f98..38306e98f04b2877a076ae7ac4912dee3cebfbab 100644 (file)
--- a/arch/ia64/mm/init.c
+++ b/arch/ia64/mm/init.c
@@ -109,6 +109,7 @@ lazy_mmu_prot_update (pte_t pte)
 {
        unsigned long addr;
        struct page *page;
+       unsigned long order;
 
        if (!pte_exec(pte))
                return;                         /* not an executable page... */
@@ -119,7 +120,12 @@ lazy_mmu_prot_update (pte_t pte)
        if (test_bit(PG_arch_1, &page->flags))
                return;                         /* i-cache is already coherent with d-cache */
 
-       flush_icache_range(addr, addr + PAGE_SIZE);
+       if (PageCompound(page)) {
+               order = (unsigned long) (page[1].lru.prev);
+               flush_icache_range(addr, addr + (1UL << order << PAGE_SHIFT));
+       }
+       else
+               flush_icache_range(addr, addr + PAGE_SIZE);
        set_bit(PG_arch_1, &page->flags);       /* mark page as clean */
 }
 
@@ -197,7 +203,7 @@ free_initmem (void)
        eaddr = (unsigned long) ia64_imva(__init_end);
        while (addr < eaddr) {
                ClearPageReserved(virt_to_page(addr));
-               set_page_count(virt_to_page(addr), 1);
+               init_page_count(virt_to_page(addr));
                free_page(addr);
                ++totalram_pages;
                addr += PAGE_SIZE;
@@ -206,7 +212,7 @@ free_initmem (void)
               (__init_end - __init_begin) >> 10);
 }
 
-void
+void __init
 free_initrd_mem (unsigned long start, unsigned long end)
 {
        struct page *page;
@@ -252,7 +258,7 @@ free_initrd_mem (unsigned long start, unsigned long end)
                        continue;
                page = virt_to_page(start);
                ClearPageReserved(page);
-               set_page_count(page, 1);
+               init_page_count(page);
                free_page(start);
                ++totalram_pages;
        }
@@ -261,7 +267,7 @@ free_initrd_mem (unsigned long start, unsigned long end)
 /*
  * This installs a clean page in the kernel's page table.
  */
-struct page *
+static struct page * __init
 put_kernel_page (struct page *page, unsigned long address, pgprot_t pgprot)
 {
        pgd_t *pgd;
@@ -294,7 +300,7 @@ put_kernel_page (struct page *page, unsigned long address, pgprot_t pgprot)
        return page;
 }
 
-static void
+static void __init
 setup_gate (void)
 {
        struct page *page;
@@ -411,7 +417,7 @@ ia64_mmu_init (void *my_cpu_data)
 
 #ifdef CONFIG_VIRTUAL_MEM_MAP
 
-int
+int __init
 create_mem_map_page_table (u64 start, u64 end, void *arg)
 {
        unsigned long address, start_page, end_page;
@@ -519,7 +525,7 @@ ia64_pfn_valid (unsigned long pfn)
 }
 EXPORT_SYMBOL(ia64_pfn_valid);
 
-int
+int __init
 find_largest_hole (u64 start, u64 end, void *arg)
 {
        u64 *max_gap = arg;
@@ -535,7 +541,7 @@ find_largest_hole (u64 start, u64 end, void *arg)
 }
 #endif /* CONFIG_VIRTUAL_MEM_MAP */
 
-static int
+static int __init
 count_reserved_pages (u64 start, u64 end, void *arg)
 {
        unsigned long num_reserved = 0;
@@ -556,7 +562,7 @@ count_reserved_pages (u64 start, u64 end, void *arg)
  * purposes.
  */
 
-static int nolwsys;
+static int nolwsys __initdata;
 
 static int __init
 nolwsys_setup (char *s)
@@ -567,7 +573,7 @@ nolwsys_setup (char *s)
 
 __setup("nolwsys", nolwsys_setup);
 
-void
+void __init
 mem_init (void)
 {
        long reserved_pages, codesize, datasize, initsize;
@@ -600,7 +606,7 @@ mem_init (void)
        kclist_add(&kcore_vmem, (void *)VMALLOC_START, VMALLOC_END-VMALLOC_START);
        kclist_add(&kcore_kernel, _stext, _end - _stext);
 
-       for_each_pgdat(pgdat)
+       for_each_online_pgdat(pgdat)
                if (pgdat->bdata->node_bootmem_map)
                        totalram_pages += free_all_bootmem_node(pgdat);
 
@@ -640,13 +646,13 @@ mem_init (void)
 void online_page(struct page *page)
 {
        ClearPageReserved(page);
-       set_page_count(page, 1);
+       init_page_count(page);
        __free_page(page);
        totalram_pages++;
        num_physpages++;
 }
 
-int add_memory(u64 start, u64 size)
+int arch_add_memory(int nid, u64 start, u64 size)
 {
        pg_data_t *pgdat;
        struct zone *zone;
@@ -654,7 +660,7 @@ int add_memory(u64 start, u64 size)
        unsigned long nr_pages = size >> PAGE_SHIFT;
        int ret;
 
-       pgdat = NODE_DATA(0);
+       pgdat = NODE_DATA(nid);
 
        zone = pgdat->node_zones + ZONE_NORMAL;
        ret = __add_pages(zone, start_pfn, nr_pages);
@@ -670,4 +676,5 @@ int remove_memory(u64 start, u64 size)
 {
        return -EINVAL;
 }
+EXPORT_SYMBOL_GPL(remove_memory);
 #endif