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authorJiang Liu <liuj97@gmail.com>2013-04-29 15:06:33 -0700
committerLinus Torvalds <torvalds@linux-foundation.org>2013-04-29 15:54:29 -0700
commited8a36f50381e3d10fa57aba4088d67e9d55b0e5 (patch)
tree755acc3af9bebae4e491f731a7d728cb937595d1 /arch/blackfin
parentc15da0a87c33e32b4984d367799b32dda2024af8 (diff)
downloadlinux-ed8a36f50381e3d10fa57aba4088d67e9d55b0e5.tar.gz
mm/blackfin: use common help functions to free reserved pages
Use common help functions to free reserved pages. Signed-off-by: Jiang Liu <jiang.liu@huawei.com> Cc: Mike Frysinger <vapier@gentoo.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'arch/blackfin')
-rw-r--r--arch/blackfin/mm/init.c22
1 files changed, 3 insertions, 19 deletions
diff --git a/arch/blackfin/mm/init.c b/arch/blackfin/mm/init.c
index 9cb85537bd2..82d01a71207 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