linux-kernel - Re: [PATCH mm-unstable] mm: remove the hugetlb field from struct page

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Message-Id: <20230109164959.cb0cb7b3f8a4ba5a2051529a@linux-foundation.org>
Date:   Mon, 9 Jan 2023 16:49:59 -0800
From:   Andrew Morton <akpm@...ux-foundation.org>
To:     Sidhartha Kumar <sidhartha.kumar@...cle.com>
Cc:     linux-kernel@...r.kernel.org, linux-mm@...ck.org,
        willy@...radead.org, hughd@...gle.com
Subject: Re: [PATCH mm-unstable] mm: remove the hugetlb field from struct
 page

On Mon,  9 Jan 2023 17:08:06 -0600 Sidhartha Kumar <sidhartha.kumar@...cle.com> wrote:

> commit dad6a5eb5556(mm,hugetlb: use folio fields in second tail page)
> added a transitional hugetlb field to struct page and struct folio to make
> room for another int in the first tail of a compound page. Hugetlb folio
> conversions have changed all page users of this field to use the fields
> within the folio so struct page no longer needs this hugetlb specific
> field.
> 
> Signed-off-by: Sidhartha Kumar <sidhartha.kumar@...cle.com>
> ---
> This is rebased on 01/09/2023 mm-unstable plus Matthew's series[1] applied
> 
> [1]https://lore.kernel.org/linux-mm/20221231214610.2800682-1-willy@infradead.org/

Matthew's series had some compilation issues and needs quite some
rework to make it apply to current mm-unstable..

So, please resend this patch once v2 of "Get rid of first tail page
fields" has materialized.