linux-kernel - Re: [RFC PATCH 01/12] khugepaged: Rename hpage_collapse_scan

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Message-ID: <Z2D7pi1Gl4Bq-ln2@casper.infradead.org>
Date: Tue, 17 Dec 2024 04:18:46 +0000
From: Matthew Wilcox <willy@...radead.org>
To: Dev Jain <dev.jain@....com>
Cc: akpm@...ux-foundation.org, david@...hat.com,
	kirill.shutemov@...ux.intel.com, ryan.roberts@....com,
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	linux-mm@...ck.org, linux-kernel@...r.kernel.org
Subject: Re: [RFC PATCH 01/12] khugepaged: Rename hpage_collapse_scan_pmd()
 -> ptes()

On Mon, Dec 16, 2024 at 10:20:54PM +0530, Dev Jain wrote:
> -static int hpage_collapse_scan_pmd(struct mm_struct *mm,
> +static int hpage_collapse_scan_ptes(struct mm_struct *mm,

i don't think this is necessary at all.  you're scanning a pmd.
you might not be scanning in order to collapse to a pmd, but pmd
is the level you're scanning at.