openkylin
/
linux
mirror of https://gitee.com/openkylin/linux.git
9
0
Fork 0
Code Issues Projects Releases Wiki Activity

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>
This commit is contained in:
Jiang Liu 2013-04-29 15:06:45 -07:00 committed by Linus Torvalds
parent 32ce012064
commit 7932f61ba8
1 changed files with 3 additions and 24 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

27
arch/openrisc/mm/init.c
View File

@ -43,6 +43,7 @@
#include <asm/kmap_types.h> #include <asm/kmap_types.h>
#include <asm/fixmap.h> #include <asm/fixmap.h>
#include <asm/tlbflush.h> #include <asm/tlbflush.h>
#include <asm/sections.h>
int mem_init_done; int mem_init_done;
@ -201,9 +202,6 @@ void __init paging_init(void)
/* References to section boundaries */ /* 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) static int __init free_pages_init(void)
{ {
int reservedpages, pfn; int reservedpages, pfn;
@ -263,30 +261,11 @@ void __init mem_init(void)
#ifdef CONFIG_BLK_DEV_INITRD #ifdef CONFIG_BLK_DEV_INITRD
void free_initrd_mem(unsigned long start, unsigned long end) void free_initrd_mem(unsigned long start, unsigned long end)
{ {
printk(KERN_INFO "Freeing initrd memory: %ldk freed\n", free_reserved_area(start, end, 0, "initrd");
(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++;
}
} }
#endif #endif
void free_initmem(void) void free_initmem(void)
{ {
unsigned long addr; free_initmem_default(0);
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);
} }