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Date:   Tue, 10 Aug 2021 21:42:13 +0100
From:   David Howells <>
To:     "Matthew Wilcox (Oracle)" <>
Subject: Re: [PATCH v14 052/138] mm: Add folio_raw_mapping()

Matthew Wilcox (Oracle) <> wrote:

> Convert __page_rmapping to folio_raw_mapping and move it to mm/internal.h.
> It's only a couple of instructions (load and mask), so it's definitely
> going to be cheaper to inline it than call it.  Leave page_rmapping
> out of line.
> Signed-off-by: Matthew Wilcox (Oracle) <>

I assume you're going to call it from another source file at some point,
otherwise this is unnecessary.

Apart from that,

Reviewed-by: David Howells <>

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