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From: Zach O'Keefe <zokeefe@google.com>
To: Miaohe Lin <linmiaohe@huawei.com>
Cc: akpm@linux-foundation.org, aarcange@redhat.com,
	willy@infradead.org, vbabka@suse.cz, dhowells@redhat.com,
	neilb@suse.de, apopple@nvidia.com, david@redhat.com,
	surenb@google.com, peterx@redhat.com, linux-mm@kvack.org,
	linux-kernel@vger.kernel.org
Subject: Re: [PATCH 1/7] mm/khugepaged: remove unneeded shmem_huge_enabled() check
Date: Tue, 14 Jun 2022 17:13:28 -0700	[thread overview]
Message-ID: <YqkkKCnNe42dAPrP@google.com> (raw)
In-Reply-To: <20220611084731.55155-2-linmiaohe@huawei.com>

On 11 Jun 16:47, Miaohe Lin wrote:
> If we reach here, hugepage_vma_check() has already made sure that hugepage
> is enabled for shmem. Remove this duplicated check.
> 
> Signed-off-by: Miaohe Lin <linmiaohe@huawei.com>
> ---
>  mm/khugepaged.c | 2 --
>  1 file changed, 2 deletions(-)
> 
> diff --git a/mm/khugepaged.c b/mm/khugepaged.c
> index 476d79360101..73570dfffcec 100644
> --- a/mm/khugepaged.c
> +++ b/mm/khugepaged.c
> @@ -2153,8 +2153,6 @@ static unsigned int khugepaged_scan_mm_slot(unsigned int pages,
>  		if (khugepaged_scan.address < hstart)
>  			khugepaged_scan.address = hstart;
>  		VM_BUG_ON(khugepaged_scan.address & ~HPAGE_PMD_MASK);
> -		if (shmem_file(vma->vm_file) && !shmem_huge_enabled(vma))
> -			goto skip;
>  
>  		while (khugepaged_scan.address < hend) {
>  			int ret;
> -- 
> 2.23.0
> 
> 

Thanks for these cleanups, Miaohe.

Reviewed-by: Zach O'Keefe <zokeefe@google.com>


  parent reply	other threads:[~2022-06-15  0:13 UTC|newest]

Thread overview: 40+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2022-06-11  8:47 [PATCH 0/7] A few cleanup patches for khugepaged Miaohe Lin
2022-06-11  8:47 ` [PATCH 1/7] mm/khugepaged: remove unneeded shmem_huge_enabled() check Miaohe Lin
2022-06-11 20:33   ` Andrew Morton
2022-06-13  1:48     ` Miaohe Lin
2022-06-13 18:02       ` Andrew Morton
2022-06-15  0:13   ` Zach O'Keefe [this message]
2022-06-15 17:35   ` Yang Shi
2022-06-11  8:47 ` [PATCH 2/7] mm/khugepaged: stop swapping in page when VM_FAULT_RETRY occurs Miaohe Lin
2022-06-15 15:14   ` Zach O'Keefe
2022-06-15 17:51     ` Yang Shi
2022-06-16  6:08       ` Miaohe Lin
2022-06-15 17:49   ` Yang Shi
2022-06-16  6:40     ` Miaohe Lin
2022-06-16 15:46       ` Yang Shi
2022-06-11  8:47 ` [PATCH 3/7] mm/khugepaged: trivial typo and codestyle cleanup Miaohe Lin
2022-06-15  0:23   ` Zach O'Keefe
2022-06-15 17:53   ` Yang Shi
2022-06-11  8:47 ` [PATCH 4/7] mm/khugepaged: minor cleanup for collapse_file Miaohe Lin
2022-06-15 15:54   ` Zach O'Keefe
2022-06-15 18:18     ` Yang Shi
2022-06-16  6:10       ` Miaohe Lin
2022-06-11  8:47 ` [PATCH 5/7] mm/khugepaged: use helper macro __ATTR_RW Miaohe Lin
2022-06-15  0:29   ` Zach O'Keefe
2022-06-15  7:48     ` Miaohe Lin
2022-06-15 21:28   ` Yang Shi
2022-06-16  7:07     ` Miaohe Lin
2022-06-16 15:48       ` Yang Shi
2022-06-11  8:47 ` [PATCH 6/7] mm/khugepaged: remove unneeded return value of khugepaged_add_pte_mapped_thp() Miaohe Lin
2022-06-15  0:19   ` Zach O'Keefe
2022-06-15 21:35   ` Yang Shi
2022-06-11  8:47 ` [PATCH 7/7] mm/khugepaged: try to free transhuge swapcache when possible Miaohe Lin
2022-06-15 17:13   ` Zach O'Keefe
2022-06-16  3:38     ` Mika Penttilä
2022-06-16  7:33     ` Miaohe Lin
2022-06-15 23:58   ` Yang Shi
2022-06-16  7:42     ` Miaohe Lin
2022-06-16 15:53       ` Yang Shi
2022-06-17  2:26         ` Miaohe Lin
2022-06-17 16:35           ` Yang Shi
2022-06-18  3:13             ` Miaohe Lin

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