Merge branch 'master'

1 files changed, 23 insertions, 25 deletions

diff --git a/arch/mips/mm/init.c b/arch/mips/mm/init.c
index ad89c442f299..c22308b93ff0 100644
--- a/arch/mips/mm/init.c
+++ b/arch/mips/mm/init.c
@@ -276,6 +276,20 @@ void __init mem_init(void)
 }
 #endif /* !CONFIG_NEED_MULTIPLE_NODES */
 
+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, 0xcc, PAGE_SIZE);
+                free_page(addr);
+                totalram_pages++;
+        }
+        printk(KERN_INFO "Freeing %s: %ldk freed\n", what, (end - begin) >> 10);
+}
+
 #ifdef CONFIG_BLK_DEV_INITRD
 void free_initrd_mem(unsigned long start, unsigned long end)
 {
@@ -284,16 +298,7 @@ void free_initrd_mem(unsigned long start, unsigned long end)
         start = (unsigned long)phys_to_virt(CPHYSADDR(start));
         end = (unsigned long)phys_to_virt(CPHYSADDR(end));
 #endif
-        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
 
@@ -301,24 +306,17 @@ extern unsigned long prom_free_prom_memory(void);
 
 void free_initmem(void)
 {
-        unsigned long addr, page, freed;
+        unsigned long start, end, freed;
 
         freed = prom_free_prom_memory();
+        if (freed)
+                printk(KERN_INFO "Freeing firmware memory: %ldk freed\n",freed);
 
-        addr = (unsigned long) &__init_begin;
-        while (addr < (unsigned long) &__init_end) {
+        start = (unsigned long)(&__init_begin);
+        end = (unsigned long)(&__init_end);
 #ifdef CONFIG_64BIT
-                page = PAGE_OFFSET | CPHYSADDR(addr);
-#else
-                page = addr;
+        start = PAGE_OFFSET | CPHYSADDR(start);
+        end = PAGE_OFFSET | CPHYSADDR(end);
 #endif
-                ClearPageReserved(virt_to_page(page));
-                init_page_count(virt_to_page(page));
-                free_page(page);
-                totalram_pages++;
-                freed += PAGE_SIZE;
-                addr += PAGE_SIZE;
-        }
-        printk(KERN_INFO "Freeing unused kernel memory: %ldk freed\n",
-               freed >> 10);
+        free_init_pages("unused kernel memory", start, end);
 }