Re: [PATCH v6 2/4] mm/hwpoison: move definitions of num_poisoned_pages_* to memory-failure.c

[Oscar Salvador]

On Fri, Oct 07, 2022 at 10:07:04AM +0900, Naoya Horiguchi wrote:
> From: Naoya Horiguchi <naoya.horiguchi@xxxxxxx>
> 
> These interfaces will be used by drivers/base/memory.c by later patch, so as a
> preparatory work move them to more common header file visible to the file.
> 
> Signed-off-by: Naoya Horiguchi <naoya.horiguchi@xxxxxxx>
> Reviewed-by: Miaohe Lin <linmiaohe@xxxxxxxxxx>
> ---
> ChangeLog v3 -> v6:
> - remove static in definition of num_poisoned_pages_inc() to fix build error.
> 
> ChangeLog v2 -> v3:
> - added declaration of num_poisoned_pages_inc() in #ifdef CONFIG_MEMORY_FAILURE
> ---
>  arch/parisc/kernel/pdt.c |  3 +--
>  include/linux/mm.h       |  5 +++++
>  include/linux/swapops.h  | 24 ++----------------------
>  mm/memory-failure.c      | 10 ++++++++++
>  4 files changed, 18 insertions(+), 24 deletions(-)
> 
> diff --git a/arch/parisc/kernel/pdt.c b/arch/parisc/kernel/pdt.c
> index e391b175f5ec..fdc880e2575a 100644
> --- a/arch/parisc/kernel/pdt.c
> +++ b/arch/parisc/kernel/pdt.c
> @@ -18,8 +18,7 @@
>  #include <linux/kthread.h>
>  #include <linux/initrd.h>
>  #include <linux/pgtable.h>
> -#include <linux/swap.h>
> -#include <linux/swapops.h>
> +#include <linux/mm.h>

I am probably missing something.
num_poisoned_pages_* functions are in swapops.h, but why are you removing swap.h as well?

Also, reading the changelog it sounded like both functions would be in mm.h,
but actually only the _inc part is.

The rest looks good to me.
 

-- 
Oscar Salvador
SUSE Labs