linux-kernel - Re: [PATCH 1/7] mm/khugepaged: remove unneeded shmem_huge

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Message-Id: <20220613110259.80507ec6a6472342a951dad4@linux-foundation.org>
Date:   Mon, 13 Jun 2022 11:02:59 -0700
From:   Andrew Morton <akpm@...ux-foundation.org>
To:     Miaohe Lin <linmiaohe@...wei.com>
Cc:     <aarcange@...hat.com>, <willy@...radead.org>, <vbabka@...e.cz>,
        <dhowells@...hat.com>, <neilb@...e.de>, <apopple@...dia.com>,
        <david@...hat.com>, <surenb@...gle.com>, <peterx@...hat.com>,
        <linux-mm@...ck.org>, <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH 1/7] mm/khugepaged: remove unneeded shmem_huge_enabled()
 check

On Mon, 13 Jun 2022 09:48:27 +0800 Miaohe Lin <linmiaohe@...wei.com> wrote:

> > I updated this to
> > 
> > If we reach here, hugepage_vma_check() has already made sure that hugepage
> > is enabled for shmem, via its call to hugepage_vma_check().  Remove this
> > duplicated check.
> 
> Do you mean "khugepaged_scan_mm_slot() has already made sure that hugepage is
> enabled for shmem, via its call to hugepage_vma_check()"?

yup, thanks.