Re: [PATCH] mm/memcg: Relocate mod_objcg_mlstate(), get_obj_stock() and put_obj_stock()

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On Mon, Nov 29, 2021 at 8:12 AM Waiman Long <longman@xxxxxxxxxx> wrote:
>
> All the calls to mod_objcg_mlstate(), get_obj_stock() and put_obj_stock()
> are done by functions defined within the same "#ifdef CONFIG_MEMCG_KMEM"
> compilation block. When CONFIG_MEMCG_KMEM isn't defined, the following
> compilation warnings will be issued [1] and [2].
>
>   mm/memcontrol.c:785:20: warning: unused function 'mod_objcg_mlstate'
>   mm/memcontrol.c:2113:33: warning: unused function 'get_obj_stock'
>
> Fix these warning by moving those functions to under the same
> CONFIG_MEMCG_KMEM compilation block. There is no functional change.
>
> [1] https://lore.kernel.org/lkml/202111272014.WOYNLUV6-lkp@xxxxxxxxx/
> [2] https://lore.kernel.org/lkml/202111280551.LXsWYt1T-lkp@xxxxxxxxx/
>
> Fixes: 559271146efc ("mm/memcg: optimize user context object stock access")
> Fixes: 68ac5b3c8db2 ("mm/memcg: cache vmstat data in percpu memcg_stock_pcp")
> Reported-by: kernel test robot <lkp@xxxxxxxxx>
> Signed-off-by: Waiman Long <longman@xxxxxxxxxx>

Reviewed-by: Shakeel Butt <shakeelb@xxxxxxxxxx>




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