diff options
| author | Jiang Liu <liuj97@gmail.com> | 2013-04-29 15:06:33 -0700 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2013-04-29 15:54:29 -0700 |
| commit | ed8a36f50381e3d10fa57aba4088d67e9d55b0e5 (patch) | |
| tree | 755acc3af9bebae4e491f731a7d728cb937595d1 | |
| parent | c15da0a87c33e32b4984d367799b32dda2024af8 (diff) | |
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>
| -rw-r--r-- | arch/blackfin/mm/init.c | 22 |
1 files changed, 3 insertions, 19 deletions
diff --git a/arch/blackfin/mm/init.c b/arch/blackfin/mm/init.c index 9cb85537bd2b..82d01a71207f 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 |