[PATCH] syscall class hookup for all normal targets

[linux-2.6-microblaze.git] / arch / i386 / mm / init.c

diff --git a/arch/i386/mm/init.c b/arch/i386/mm/init.c
index 7ba55a6..89e8486 100644 (file)
--- a/arch/i386/mm/init.c
+++ b/arch/i386/mm/init.c
@@ -6,7 +6,6 @@
  *  Support of BIGMEM added by Gerhard Wichert, Siemens AG, July 1999
  */
 
-#include <linux/config.h>
 #include <linux/module.h>
 #include <linux/signal.h>
 #include <linux/sched.h>
@@ -23,12 +22,14 @@
 #include <linux/init.h>
 #include <linux/highmem.h>
 #include <linux/pagemap.h>
+#include <linux/poison.h>
 #include <linux/bootmem.h>
 #include <linux/slab.h>
 #include <linux/proc_fs.h>
 #include <linux/efi.h>
 #include <linux/memory_hotplug.h>
 #include <linux/initrd.h>
+#include <linux/cpumask.h>
 
 #include <asm/processor.h>
 #include <asm/system.h>
@@ -384,7 +385,7 @@ static void __init pagetable_init (void)
 #endif
 }
 
-#ifdef CONFIG_SOFTWARE_SUSPEND
+#if defined(CONFIG_SOFTWARE_SUSPEND) || defined(CONFIG_ACPI_SLEEP)
 /*
  * Swap suspend & friends need this for resume because things like the intel-agp
  * driver might have split up a kernel 4MB mapping.
@@ -651,8 +652,9 @@ void __init mem_init(void)
  * Specifically, in the case of x86, we will always add
  * memory to the highmem for now.
  */
+#ifdef CONFIG_MEMORY_HOTPLUG
 #ifndef CONFIG_NEED_MULTIPLE_NODES
-int add_memory(u64 start, u64 size)
+int arch_add_memory(int nid, u64 start, u64 size)
 {
        struct pglist_data *pgdata = &contig_page_data;
        struct zone *zone = pgdata->node_zones + MAX_NR_ZONES-1;
@@ -667,6 +669,7 @@ int remove_memory(u64 start, u64 size)
        return -EINVAL;
 }
 #endif
+#endif
 
 kmem_cache_t *pgd_cache;
 kmem_cache_t *pmd_cache;
@@ -720,33 +723,17 @@ static int noinline do_test_wp_bit(void)
        return flag;
 }
 
-void free_initmem(void)
-{
-       unsigned long addr;
-
-       addr = (unsigned long)(&__init_begin);
-       for (; addr < (unsigned long)(&__init_end); addr += PAGE_SIZE) {
-               ClearPageReserved(virt_to_page(addr));
-               init_page_count(virt_to_page(addr));
-               memset((void *)addr, 0xcc, PAGE_SIZE);
-               free_page(addr);
-               totalram_pages++;
-       }
-       printk (KERN_INFO "Freeing unused kernel memory: %dk freed\n", (__init_end - __init_begin) >> 10);
-}
-
 #ifdef CONFIG_DEBUG_RODATA
 
-extern char __start_rodata, __end_rodata;
 void mark_rodata_ro(void)
 {
-       unsigned long addr = (unsigned long)&__start_rodata;
+       unsigned long addr = (unsigned long)__start_rodata;
 
-       for (; addr < (unsigned long)&__end_rodata; addr += PAGE_SIZE)
+       for (; addr < (unsigned long)__end_rodata; addr += PAGE_SIZE)
                change_page_attr(virt_to_page(addr), 1, PAGE_KERNEL_RO);
 
-       printk ("Write protecting the kernel read-only data: %luk\n",
-                       (unsigned long)(&__end_rodata - &__start_rodata) >> 10);
+       printk("Write protecting the kernel read-only data: %uk\n",
+                       (__end_rodata - __start_rodata) >> 10);
 
        /*
         * change_page_attr() requires a global_flush_tlb() call after it.
@@ -758,17 +745,31 @@ void mark_rodata_ro(void)
 }
 #endif
 
+void free_init_pages(char *what, unsigned long begin, unsigned long end)
+{
+       unsigned long addr;
+
+       for (addr = begin; addr < end; addr += PAGE_SIZE) {
+               ClearPageReserved(virt_to_page(addr));
+               init_page_count(virt_to_page(addr));
+               memset((void *)addr, POISON_FREE_INITMEM, PAGE_SIZE);
+               free_page(addr);
+               totalram_pages++;
+       }
+       printk(KERN_INFO "Freeing %s: %ldk freed\n", what, (end - begin) >> 10);
+}
+
+void free_initmem(void)
+{
+       free_init_pages("unused kernel memory",
+                       (unsigned long)(&__init_begin),
+                       (unsigned long)(&__init_end));
+}
 
 #ifdef CONFIG_BLK_DEV_INITRD
 void free_initrd_mem(unsigned long start, unsigned long end)
 {
-       if (start < end)
-               printk (KERN_INFO "Freeing initrd memory: %ldk freed\n", (end - start) >> 10);
-       for (; start < end; start += PAGE_SIZE) {
-               ClearPageReserved(virt_to_page(start));
-               init_page_count(virt_to_page(start));
-               free_page(start);
-               totalram_pages++;
-       }
+       free_init_pages("initrd memory", start, end);
 }
 #endif
+