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mm,kexec: 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: Eric Biederman <ebiederm@xmission.com>
Reviewed-by: Zhang Yanfei <zhangyanfei@cn.fujitsu.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 15:06:58 -07:00 committed by Linus Torvalds
parent c941836819
commit e07cee23e6
1 changed files with 2 additions and 6 deletions
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8
kernel/kexec.c
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@ -1118,12 +1118,8 @@ void __weak crash_free_reserved_phys_range(unsigned long begin,
{
unsigned long addr;
for (addr = begin; addr < end; addr += PAGE_SIZE) {
ClearPageReserved(pfn_to_page(addr >> PAGE_SHIFT));
init_page_count(pfn_to_page(addr >> PAGE_SHIFT));
free_page((unsigned long)__va(addr));
totalram_pages++;
}
for (addr = begin; addr < end; addr += PAGE_SIZE)
free_reserved_page(pfn_to_page(addr >> PAGE_SHIFT));
}
int crash_shrink_memory(unsigned long new_size)