于 2013年03月10日 14:27, Jiang Liu 写道:
> Use common help functions to free reserved pages.
>
> Signed-off-by: Jiang Liu <jiang.liu@xxxxxxxxxx>
> Cc: Eric Biederman <ebiederm@xxxxxxxxxxxx>
Reviewed-by: Zhang Yanfei <zhangyanfei@xxxxxxxxxxxxxx>
> ---
> kernel/kexec.c | 8 ++------
> 1 file changed, 2 insertions(+), 6 deletions(-)
>
> diff --git a/kernel/kexec.c b/kernel/kexec.c
> index bddd3d7..be95397 100644
> --- a/kernel/kexec.c
> +++ b/kernel/kexec.c
> @@ -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)
--
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