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authorJiang Liu <liuj97@gmail.com>2013-04-30 02:06:25 +0400
committerLinus Torvalds <torvalds@linux-foundation.org>2013-04-30 02:54:29 +0400
commitf3beeb4a51d3aa16571e6c3774b929209e9956bf (patch)
tree868eaa96bc60c57e79929fd582dffa9bdde4c900 /arch/alpha/mm
parent69afade72a3e13e96a065f757891d384d466123f (diff)
downloadlinux-f3beeb4a51d3aa16571e6c3774b929209e9956bf.tar.xz
mm/alpha: 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: Richard Henderson <rth@twiddle.net> Cc: Ivan Kokshaysky <ink@jurassic.park.msu.ru> Cc: Matt Turner <mattst88@gmail.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'arch/alpha/mm')
-rw-r--r--arch/alpha/mm/init.c24
-rw-r--r--arch/alpha/mm/numa.c3
2 files changed, 4 insertions, 23 deletions
diff --git a/arch/alpha/mm/init.c b/arch/alpha/mm/init.c
index 1ad6ca74bed2..0ba85ee4a466 100644
--- a/arch/alpha/mm/init.c
+++ b/arch/alpha/mm/init.c
@@ -31,6 +31,7 @@
#include <asm/console.h>
#include <asm/tlb.h>
#include <asm/setup.h>
+#include <asm/sections.h>
extern void die_if_kernel(char *,struct pt_regs *,long);
@@ -281,8 +282,6 @@ printk_memory_info(void)
{
unsigned long codesize, reservedpages, datasize, initsize, tmp;
extern int page_is_ram(unsigned long) __init;
- extern char _text, _etext, _data, _edata;
- extern char __init_begin, __init_end;
/* printk all informations */
reservedpages = 0;
@@ -318,32 +317,15 @@ mem_init(void)
#endif /* CONFIG_DISCONTIGMEM */
void
-free_reserved_mem(void *start, void *end)
-{
- void *__start = start;
- for (; __start < end; __start += PAGE_SIZE) {
- ClearPageReserved(virt_to_page(__start));
- init_page_count(virt_to_page(__start));
- free_page((long)__start);
- totalram_pages++;
- }
-}
-
-void
free_initmem(void)
{
- extern char __init_begin, __init_end;
-
- free_reserved_mem(&__init_begin, &__init_end);
- printk ("Freeing unused kernel memory: %ldk freed\n",
- (&__init_end - &__init_begin) >> 10);
+ free_initmem_default(0);
}
#ifdef CONFIG_BLK_DEV_INITRD
void
free_initrd_mem(unsigned long start, unsigned long end)
{
- free_reserved_mem((void *)start, (void *)end);
- printk ("Freeing initrd memory: %ldk freed\n", (end - start) >> 10);
+ free_reserved_area(start, end, 0, "initrd");
}
#endif
diff --git a/arch/alpha/mm/numa.c b/arch/alpha/mm/numa.c
index 3973ae395772..33885048fa36 100644
--- a/arch/alpha/mm/numa.c
+++ b/arch/alpha/mm/numa.c
@@ -17,6 +17,7 @@
#include <asm/hwrpb.h>
#include <asm/pgalloc.h>
+#include <asm/sections.h>
pg_data_t node_data[MAX_NUMNODES];
EXPORT_SYMBOL(node_data);
@@ -325,8 +326,6 @@ void __init mem_init(void)
{
unsigned long codesize, reservedpages, datasize, initsize, pfn;
extern int page_is_ram(unsigned long) __init;
- extern char _text, _etext, _data, _edata;
- extern char __init_begin, __init_end;
unsigned long nid, i;
high_memory = (void *) __va(max_low_pfn << PAGE_SHIFT);