linux-kernel - Re: [RFC PATCH v3 2/3] mm: Add PUD level pagetable account

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Message-ID: <YsGtPnfB4/A8pFhA@casper.infradead.org>
Date:   Sun, 3 Jul 2022 15:52:46 +0100
From:   Matthew Wilcox <willy@...radead.org>
To:     Baolin Wang <baolin.wang@...ux.alibaba.com>
Cc:     Mike Rapoport <rppt@...ux.ibm.com>, akpm@...ux-foundation.org,
        linux-mm@...ck.org, linux-kernel@...r.kernel.org
Subject: Re: [RFC PATCH v3 2/3] mm: Add PUD level pagetable account

On Sun, Jul 03, 2022 at 10:06:32PM +0800, Baolin Wang wrote:
> So for kernel pte page table allocation, I need another similar helpers like
> below. However they do the samething with
> pgtable_pud_page_ctor/pgtable_pud_page_dtor, so I am not sure this is good
> for adding these duplicate code.

Why do we want to account kernel PTE page tables in NR_PAGETABLE?
I think that's confusing.