Re: + mm-proc-remove-redundant-page-validation-of-pte_page.patch added to -mm tree

[Xianting Tian <xianting.tian@linux.alibaba.com>]

Could you share the reason why the patch is removed? thanks

在 2022/3/17 上午5:11, Andrew Morton 写道:
> The patch titled
>       Subject: fs/proc/task_mmu.c: remove redundant page validation of pte_page
> has been added to the -mm tree.  Its filename is
>       mm-proc-remove-redundant-page-validation-of-pte_page.patch
>
> This patch should soon appear at
>      https://ozlabs.org/~akpm/mmots/broken-out/mm-proc-remove-redundant-page-validation-of-pte_page.patch
> and later at
>      https://ozlabs.org/~akpm/mmotm/broken-out/mm-proc-remove-redundant-page-validation-of-pte_page.patch
>
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>
> *** Remember to use Documentation/process/submit-checklist.rst when testing your code ***
>
> The -mm tree is included into linux-next and is updated
> there every 3-4 working days
>
> ------------------------------------------------------
> From: Xianting Tian <xianting.tian@linux.alibaba.com>
> Subject: fs/proc/task_mmu.c: remove redundant page validation of pte_page
>
> pte_page() always returns a valid page, so remove the redundant page
> validation, as we did in many other places.
>
> Link: https://lkml.kernel.org/r/20220316025947.328276-1-xianting.tian@linux.alibaba.com
> Signed-off-by: Xianting Tian <xianting.tian@linux.alibaba.com>
> Reviewed-by: Chaitanya Kulkarni <kch@nvidia.com>
> Cc: Alexey Dobriyan <adobriyan@gmail.com>
> Cc: Yang Shi <shy828301@gmail.com>
> Cc: Sasha Levin <sashal@kernel.org>
> Cc: Miaohe Lin <linmiaohe@huawei.com>
> Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
> ---
>
>   fs/proc/task_mmu.c |    2 --
>   1 file changed, 2 deletions(-)
>
> --- a/fs/proc/task_mmu.c~mm-proc-remove-redundant-page-validation-of-pte_page
> +++ a/fs/proc/task_mmu.c
> @@ -1873,8 +1873,6 @@ static int gather_hugetlb_stats(pte_t *p
>   		return 0;
>   
>   	page = pte_page(huge_pte);
> -	if (!page)
> -		return 0;
>   
>   	md = walk->private;
>   	gather_stats(page, md, pte_dirty(huge_pte), 1);
> _
>
> Patches currently in -mm which might be from xianting.tian@linux.alibaba.com are
>
> mm-proc-remove-redundant-page-validation-of-pte_page.patch