Merge master.kernel.org:/pub/scm/linux/kernel/git/davem/net-2.6

[powerpc.git] / arch / x86_64 / mm / init.c

diff --git a/arch/x86_64/mm/init.c b/arch/x86_64/mm/init.c
index 282b0a8..c082268 100644 (file)
--- a/arch/x86_64/mm/init.c
+++ b/arch/x86_64/mm/init.c
@@ -572,13 +572,13 @@ void free_init_pages(char *what, unsigned long begin, unsigned long end)
 
        printk(KERN_INFO "Freeing %s: %luk freed\n", what, (end - begin) >> 10);
        for (addr = begin; addr < end; addr += PAGE_SIZE) {
-               struct page *page = pfn_to_page(addr >> PAGE_SHIFT);
-               ClearPageReserved(page);
-               init_page_count(page);
-               memset(page_address(page), POISON_FREE_INITMEM, PAGE_SIZE);
+               ClearPageReserved(virt_to_page(addr));
+               init_page_count(virt_to_page(addr));
+               memset((void *)(addr & ~(PAGE_SIZE-1)),
+                       POISON_FREE_INITMEM, PAGE_SIZE);
                if (addr >= __START_KERNEL_map)
                        change_page_attr_addr(addr, 1, __pgprot(0));
-               __free_page(page);
+               free_page(addr);
                totalram_pages++;
        }
        if (addr > __START_KERNEL_map)
@@ -588,26 +588,31 @@ void free_init_pages(char *what, unsigned long begin, unsigned long end)
 void free_initmem(void)
 {
        free_init_pages("unused kernel memory",
-                       __pa_symbol(&__init_begin),
-                       __pa_symbol(&__init_end));
+                       (unsigned long)(&__init_begin),
+                       (unsigned long)(&__init_end));
 }
 
 #ifdef CONFIG_DEBUG_RODATA
 
 void mark_rodata_ro(void)
 {
-       unsigned long start = PFN_ALIGN(__va(__pa_symbol(&_stext))), size;
+       unsigned long start = (unsigned long)_stext, end;
 
 #ifdef CONFIG_HOTPLUG_CPU
        /* It must still be possible to apply SMP alternatives. */
        if (num_possible_cpus() > 1)
-               start = PFN_ALIGN(__va(__pa_symbol(&_etext)));
+               start = (unsigned long)_etext;
 #endif
-       size = (unsigned long)__va(__pa_symbol(&__end_rodata)) - start;
-       change_page_attr_addr(start, size >> PAGE_SHIFT, PAGE_KERNEL_RO);
+       end = (unsigned long)__end_rodata;
+       start = (start + PAGE_SIZE - 1) & PAGE_MASK;
+       end &= PAGE_MASK;
+       if (end <= start)
+               return;
+
+       change_page_attr_addr(start, (end - start) >> PAGE_SHIFT, PAGE_KERNEL_RO);
 
        printk(KERN_INFO "Write protecting the kernel read-only data: %luk\n",
-              size >> 10);
+              (end - start) >> 10);
 
        /*
         * change_page_attr_addr() requires a global_flush_tlb() call after it.
@@ -622,7 +627,7 @@ void mark_rodata_ro(void)
 #ifdef CONFIG_BLK_DEV_INITRD
 void free_initrd_mem(unsigned long start, unsigned long end)
 {
-       free_init_pages("initrd memory", __pa(start), __pa(end));
+       free_init_pages("initrd memory", start, end);
 }
 #endif