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Subject[RFC PATCH v1 13/33] mm/microblaze: use common help functions to free reserved pages
Date
Use common help functions to free reserved pages.

Signed-off-by: Jiang Liu <jiang.liu@huawei.com>
Cc: Michal Simek <monstr@monstr.eu>
---
arch/microblaze/include/asm/setup.h | 1 -
arch/microblaze/mm/init.c | 28 ++--------------------------
2 files changed, 2 insertions(+), 27 deletions(-)

diff --git a/arch/microblaze/include/asm/setup.h b/arch/microblaze/include/asm/setup.h
index 0e0b0a5..f05df56 100644
--- a/arch/microblaze/include/asm/setup.h
+++ b/arch/microblaze/include/asm/setup.h
@@ -46,7 +46,6 @@ void machine_shutdown(void);
void machine_halt(void);
void machine_power_off(void);

-void free_init_pages(char *what, unsigned long begin, unsigned long end);
extern void *alloc_maybe_bootmem(size_t size, gfp_t mask);
extern void *zalloc_maybe_bootmem(size_t size, gfp_t mask);

diff --git a/arch/microblaze/mm/init.c b/arch/microblaze/mm/init.c
index 8f8b367..9be5302 100644
--- a/arch/microblaze/mm/init.c
+++ b/arch/microblaze/mm/init.c
@@ -236,40 +236,16 @@ void __init setup_memory(void)
paging_init();
}

-void free_init_pages(char *what, unsigned long begin, unsigned long end)
-{
- unsigned long addr;
-
- for (addr = begin; addr < end; addr += PAGE_SIZE) {
- ClearPageReserved(virt_to_page(addr));
- init_page_count(virt_to_page(addr));
- free_page(addr);
- totalram_pages++;
- }
- pr_info("Freeing %s: %ldk freed\n", what, (end - begin) >> 10);
-}
-
#ifdef CONFIG_BLK_DEV_INITRD
void free_initrd_mem(unsigned long start, unsigned long end)
{
- int pages = 0;
- for (; start < end; start += PAGE_SIZE) {
- ClearPageReserved(virt_to_page(start));
- init_page_count(virt_to_page(start));
- free_page(start);
- totalram_pages++;
- pages++;
- }
- pr_notice("Freeing initrd memory: %dk freed\n",
- (int)(pages * (PAGE_SIZE / 1024)));
+ free_reserved_area(start, end, 0, "initrd");
}
#endif

void free_initmem(void)
{
- free_init_pages("unused kernel memory",
- (unsigned long)(&__init_begin),
- (unsigned long)(&__init_end));
+ free_initmem_default(0);
}

void __init mem_init(void)
--
1.7.9.5


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