Use common help functions to free reserved pages.
Signed-off-by: Jiang Liu <jiang....@huawei.com>
Cc: Mike Frysinger <vap...@gentoo.org>
---
arch/blackfin/mm/init.c | 22 +++-------------------
1 file changed, 3 insertions(+), 19 deletions(-)
diff --git a/arch/blackfin/mm/init.c b/arch/blackfin/mm/init.c
index 9cb8553..82d01a7 100644
--- a/arch/blackfin/mm/init.c
+++ b/arch/blackfin/mm/init.c
@@ -103,7 +103,7 @@ void __init mem_init(void)
max_mapnr = num_physpages = MAP_NR(high_memory);
printk(KERN_DEBUG "Kernel managed physical pages: %lu\n",
num_physpages);
- /* This will put all memory onto the freelists. */
+ /* This will put all low memory onto the freelists. */
totalram_pages = free_all_bootmem();
reservedpages = 0;
@@ -129,24 +129,11 @@ void __init mem_init(void)
initk, codek, datak, DMA_UNCACHED_REGION >> 10, (reservedpages
<< (PAGE_SHIFT-10)));
}
-static void __init free_init_pages(const char *what, unsigned long begin,
unsigned long end)
-{
- unsigned long addr;
- /* next to check that the page we free is not a partial page */
- for (addr = begin; addr + PAGE_SIZE <= 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 %s: %ldk freed\n", what, (end - begin) >> 10);
-}
-
#ifdef CONFIG_BLK_DEV_INITRD
void __init free_initrd_mem(unsigned long start, unsigned long end)
{
#ifndef CONFIG_MPU
- free_init_pages("initrd memory", start, end);
+ free_reserved_area(start, end, 0, "initrd");
#endif
}
#endif
@@ -154,10 +141,7 @@ void __init free_initrd_mem(unsigned long start, unsigned
long end)
void __init_refok free_initmem(void)
{
#if defined CONFIG_RAMKERNEL && !defined CONFIG_MPU
- free_init_pages("unused kernel memory",
- (unsigned long)(&__init_begin),
- (unsigned long)(&__init_end));
-
+ free_initmem_default(0);
if (memory_start == (unsigned long)(&__init_end))
memory_start = (unsigned long)(&__init_begin);
#endif
--
1.7.9.5
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