Re: [PATCH 1/2] mm: Don't manually decrement num_poisoned_pages

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On Tue, Aug 27, 2019 at 03:36:54PM +1000, Alastair D'Silva wrote:
> From: Alastair D'Silva <alastair@xxxxxxxxxxx>
> 
> Use the function written to do it instead.
> 
> Signed-off-by: Alastair D'Silva <alastair@xxxxxxxxxxx>

Acked-by: Mike Rapoport <rppt@xxxxxxxxxxxxx>

> ---
>  mm/sparse.c | 4 +++-
>  1 file changed, 3 insertions(+), 1 deletion(-)
> 
> diff --git a/mm/sparse.c b/mm/sparse.c
> index 72f010d9bff5..e41917a7e844 100644
> --- a/mm/sparse.c
> +++ b/mm/sparse.c
> @@ -11,6 +11,8 @@
>  #include <linux/export.h>
>  #include <linux/spinlock.h>
>  #include <linux/vmalloc.h>
> +#include <linux/swap.h>
> +#include <linux/swapops.h>
>  
>  #include "internal.h"
>  #include <asm/dma.h>
> @@ -898,7 +900,7 @@ static void clear_hwpoisoned_pages(struct page *memmap, int nr_pages)
>  
>  	for (i = 0; i < nr_pages; i++) {
>  		if (PageHWPoison(&memmap[i])) {
> -			atomic_long_sub(1, &num_poisoned_pages);
> +			num_poisoned_pages_dec();
>  			ClearPageHWPoison(&memmap[i]);
>  		}
>  	}
> -- 
> 2.21.0
> 

-- 
Sincerely yours,
Mike.





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