aboutsummaryrefslogtreecommitdiff
path: root/arch/openrisc/mm
diff options
context:
space:
mode:
authorJiang Liu <liuj97@gmail.com>2013-04-29 15:06:45 -0700
committerLinus Torvalds <torvalds@linux-foundation.org>2013-04-29 15:54:30 -0700
commit7932f61ba888a9daa3a82eaf8939902ac82029d3 (patch)
treebbe562cabe5ecf07c42aa4a6407ac5e567fe9f97 /arch/openrisc/mm
parent32ce012064b3cc89d2081d34a745af598e5e56c5 (diff)
downloadlinux-7932f61ba888a9daa3a82eaf8939902ac82029d3.tar.gz
mm/openrisc: use common help functions to free reserved pages
Use common help functions to free reserved pages. Also include <asm/sections.h> to avoid local declarations. Signed-off-by: Jiang Liu <jiang.liu@huawei.com> Cc: Jonas Bonn <jonas@southpole.se> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'arch/openrisc/mm')
-rw-r--r--arch/openrisc/mm/init.c27
1 files changed, 3 insertions, 24 deletions
diff --git a/arch/openrisc/mm/init.c b/arch/openrisc/mm/init.c
index e7fdc50c4bf0..b3cbc6703837 100644
--- a/arch/openrisc/mm/init.c
+++ b/arch/openrisc/mm/init.c
@@ -43,6 +43,7 @@
#include <asm/kmap_types.h>
#include <asm/fixmap.h>
#include <asm/tlbflush.h>
+#include <asm/sections.h>
int mem_init_done;
@@ -201,9 +202,6 @@ void __init paging_init(void)
/* References to section boundaries */
-extern char _stext, _etext, _edata, __bss_start, _end;
-extern char __init_begin, __init_end;
-
static int __init free_pages_init(void)
{
int reservedpages, pfn;
@@ -263,30 +261,11 @@ void __init mem_init(void)
#ifdef CONFIG_BLK_DEV_INITRD
void free_initrd_mem(unsigned long start, unsigned long 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_reserved_area(start, end, 0, "initrd");
}
#endif
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));
- free_page(addr);
- totalram_pages++;
- }
- printk(KERN_INFO "Freeing unused kernel memory: %luk freed\n",
- ((unsigned long)&__init_end -
- (unsigned long)&__init_begin) >> 10);
+ free_initmem_default(0);
}