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Subject[RFC PATCH v1 11/33] mm/m32r: use common help functions to free reserved pages
Date
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: Hirokazu Takata <takata@linux-m32r.org>
---
arch/m32r/mm/init.c | 26 +++-----------------------
1 file changed, 3 insertions(+), 23 deletions(-)

diff --git a/arch/m32r/mm/init.c b/arch/m32r/mm/init.c
index 78b660e..ab4cbce 100644
--- a/arch/m32r/mm/init.c
+++ b/arch/m32r/mm/init.c
@@ -28,10 +28,7 @@
#include <asm/mmu_context.h>
#include <asm/setup.h>
#include <asm/tlb.h>
-
-/* References to section boundaries */
-extern char _text, _etext, _edata;
-extern char __init_begin, __init_end;
+#include <asm/sections.h>

pgd_t swapper_pg_dir[1024];

@@ -184,17 +181,7 @@ void __init mem_init(void)
*======================================================================*/
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: %dk freed\n", \
- (int)(&__init_end - &__init_begin) >> 10);
+ free_initmem_default(0);
}

#ifdef CONFIG_BLK_DEV_INITRD
@@ -204,13 +191,6 @@ void free_initmem(void)
*======================================================================*/
void free_initrd_mem(unsigned long start, unsigned long end)
{
- unsigned long p;
- for (p = start; p < end; p += PAGE_SIZE) {
- ClearPageReserved(virt_to_page(p));
- init_page_count(virt_to_page(p));
- free_page(p);
- totalram_pages++;
- }
- printk (KERN_INFO "Freeing initrd memory: %ldk freed\n", (end - start) >> 10);
+ free_reserved_area(start, end, 0, "initrd");
}
#endif
--
1.7.9.5


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