Hello,
On Tue, Sep 24, 2013 at 12:58:03AM +0800, Zhang Yanfei wrote:
> you mean we define memblock_set_bottom_up and memblock_bottom_up like below:
>
> #ifdef CONFIG_MOVABLE_NODE
> void memblock_set_bottom_up(bool enable)
> {
> /* do something */
> }
>
> bool memblock_bottom_up()
> {
> return direction == bottom_up;
> }
> #else
> void memblock_set_bottom_up(bool enable)
> {
> /* empty */
> }
>
> bool memblock_bottom_up()
> {
> return false;
> }
> #endif
>
> right?
Yeah, the compiler would be able to drop bottom_up code if
!MOVABLE_NODE as long as the implementation functions are static.
Thanks.
--
tejun
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