Re: [PATCH] mm: hugetlb_vmemmap: remove redundant list_del()

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On 10/27/22 11:36, Muchun Song wrote:
> The ->lru field will be assigned to a new value in __free_page().
> So it is unnecessary to delete it from the @list.  Just remove it
> to simplify the code.
> 
> Signed-off-by: Muchun Song <songmuchun@xxxxxxxxxxxxx>
> ---
>  mm/hugetlb_vmemmap.c | 4 +---
>  1 file changed, 1 insertion(+), 3 deletions(-)

Thanks,

Reviewed-by: Mike Kravetz <mike.kravetz@xxxxxxxxxx>
-- 
Mike Kravetz

> 
> diff --git a/mm/hugetlb_vmemmap.c b/mm/hugetlb_vmemmap.c
> index 20f414c0379f..c98805d5b815 100644
> --- a/mm/hugetlb_vmemmap.c
> +++ b/mm/hugetlb_vmemmap.c
> @@ -231,10 +231,8 @@ static void free_vmemmap_page_list(struct list_head *list)
>  {
>  	struct page *page, *next;
>  
> -	list_for_each_entry_safe(page, next, list, lru) {
> -		list_del(&page->lru);
> +	list_for_each_entry_safe(page, next, list, lru)
>  		free_vmemmap_page(page);
> -	}
>  }
>  
>  static void vmemmap_remap_pte(pte_t *pte, unsigned long addr,
> -- 
> 2.11.0
> 




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