diff options
Diffstat (limited to 'arch/m68k/mm/init_no.c')
| -rw-r--r-- | arch/m68k/mm/init_no.c | 21 |
1 files changed, 8 insertions, 13 deletions
diff --git a/arch/m68k/mm/init_no.c b/arch/m68k/mm/init_no.c index 50cd12cf28d9..1e33d39ca9a0 100644 --- a/arch/m68k/mm/init_no.c +++ b/arch/m68k/mm/init_no.c @@ -32,6 +32,7 @@ #include <linux/gfp.h> #include <asm/setup.h> +#include <asm/sections.h> #include <asm/segment.h> #include <asm/page.h> #include <asm/pgtable.h> @@ -44,9 +45,6 @@ */ void *empty_zero_page; -extern unsigned long memory_start; -extern unsigned long memory_end; - /* * paging_init() continues the virtual memory environment setup which * was begun by the code in arch/head.S. @@ -78,8 +76,6 @@ void __init mem_init(void) { int codek = 0, datak = 0, initk = 0; unsigned long tmp; - extern char _etext, _stext, _sdata, _ebss, __init_begin, __init_end; - extern unsigned int _ramend, _rambase; unsigned long len = _ramend - _rambase; unsigned long start_mem = memory_start; /* DAVIDM - these must start at end of kernel */ unsigned long end_mem = memory_end; /* DAVIDM - this must not include kernel stack at top */ @@ -95,9 +91,9 @@ void __init mem_init(void) /* this will put all memory onto the freelists */ totalram_pages = free_all_bootmem(); - codek = (&_etext - &_stext) >> 10; - datak = (&_ebss - &_sdata) >> 10; - initk = (&__init_begin - &__init_end) >> 10; + codek = (_etext - _stext) >> 10; + datak = (_ebss - _sdata) >> 10; + initk = (__init_begin - __init_end) >> 10; tmp = nr_free_pages() << PAGE_SHIFT; printk(KERN_INFO "Memory available: %luk/%luk RAM, (%dk kernel code, %dk data)\n", @@ -129,22 +125,21 @@ void free_initmem(void) { #ifdef CONFIG_RAMKERNEL unsigned long addr; - extern char __init_begin, __init_end; /* * The following code should be cool even if these sections * are not page aligned. */ - addr = PAGE_ALIGN((unsigned long)(&__init_begin)); + addr = PAGE_ALIGN((unsigned long) __init_begin); /* next to check that the page we free is not a partial page */ - for (; addr + PAGE_SIZE < (unsigned long)(&__init_end); addr +=PAGE_SIZE) { + for (; addr + PAGE_SIZE < ((unsigned long) __init_end); addr += PAGE_SIZE) { ClearPageReserved(virt_to_page(addr)); init_page_count(virt_to_page(addr)); free_page(addr); totalram_pages++; } pr_notice("Freeing unused kernel memory: %luk freed (0x%x - 0x%x)\n", - (addr - PAGE_ALIGN((long) &__init_begin)) >> 10, - (int)(PAGE_ALIGN((unsigned long)(&__init_begin))), + (addr - PAGE_ALIGN((unsigned long) __init_begin)) >> 10, + (int)(PAGE_ALIGN((unsigned long) __init_begin)), (int)(addr - PAGE_SIZE)); #endif } |