From: Alastair D'Silva <alastair@xxxxxxxxxxx> Subject: mm/sparse.c: don't manually decrement num_poisoned_pages Use the function written to do it instead. Link: http://lkml.kernel.org/r/20190827053656.32191-2-alastair@xxxxxxxxxxx Signed-off-by: Alastair D'Silva <alastair@xxxxxxxxxxx> Acked-by: Michal Hocko <mhocko@xxxxxxxx> Reviewed-by: David Hildenbrand <david@xxxxxxxxxx> Acked-by: Mike Rapoport <rppt@xxxxxxxxxxxxx> Reviewed-by: Wei Yang <richardw.yang@xxxxxxxxxxxxxxx> Reviewed-by: Oscar Salvador <osalvador@xxxxxxx> Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx> --- mm/sparse.c | 4 +++- 1 file changed, 3 insertions(+), 1 deletion(-) --- a/mm/sparse.c~mm-dont-manually-decrement-num_poisoned_pages +++ a/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> @@ -908,7 +910,7 @@ static void clear_hwpoisoned_pages(struc 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]); } } _
