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mm/IA64: use common help functions to free reserved pages

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Use common help functions to free reserved pages.

Signed-off-by: Jiang Liu <jiang.liu@huawei.com>
Cc: Tony Luck <tony.luck@intel.com>
Cc: Fenghua Yu <fenghua.yu@intel.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
This commit is contained in:
Jiang Liu 2013-04-29 15:06:39 -07:00 committed by Linus Torvalds
parent 0f97580da0
commit 66f6259421
1 changed files with 4 additions and 19 deletions
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23
arch/ia64/mm/init.c
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@ -154,25 +154,14 @@ ia64_init_addr_space (void)
void void
free_initmem (void) free_initmem (void)
{ {
unsigned long addr, eaddr; free_reserved_area((unsigned long)ia64_imva(__init_begin),
(unsigned long)ia64_imva(__init_end),
addr = (unsigned long) ia64_imva(__init_begin); 0, "unused kernel");
eaddr = (unsigned long) ia64_imva(__init_end);
while (addr < eaddr) {
ClearPageReserved(virt_to_page(addr));
init_page_count(virt_to_page(addr));
free_page(addr);
++totalram_pages;
addr += PAGE_SIZE;
}
printk(KERN_INFO "Freeing unused kernel memory: %ldkB freed\n",
(__init_end - __init_begin) >> 10);
} }
void __init void __init
free_initrd_mem (unsigned long start, unsigned long end) free_initrd_mem (unsigned long start, unsigned long end)
{ {
struct page *page;
/* /*
* EFI uses 4KB pages while the kernel can use 4KB or bigger. * EFI uses 4KB pages while the kernel can use 4KB or bigger.
* Thus EFI and the kernel may have different page sizes. It is * Thus EFI and the kernel may have different page sizes. It is
@ -213,11 +202,7 @@ free_initrd_mem (unsigned long start, unsigned long end)
for (; start < end; start += PAGE_SIZE) { for (; start < end; start += PAGE_SIZE) {
if (!virt_addr_valid(start)) if (!virt_addr_valid(start))
continue; continue;
page = virt_to_page(start); free_reserved_page(virt_to_page(start));
ClearPageReserved(page);
init_page_count(page);
free_page(start);
++totalram_pages;
} }
} }