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References: <20210714193542.21857-1-joao.m.martins@oracle.com> <20210714193542.21857-3-joao.m.martins@oracle.com>
In-Reply-To: <20210714193542.21857-3-joao.m.martins@oracle.com>
From: Muchun Song <songmuchun@bytedance.com>
Date: Thu, 15 Jul 2021 10:53:37 +0800
Message-ID: <CAMZfGtVhMbQ=QH__SbM4zf1KYBPSVsOcA-Cho2k832Qqmz+uMQ@mail.gmail.com>
Subject: Re: [External] [PATCH v3 02/14] mm/page_alloc: split
 prep_compound_page into head and tail subparts
To: Joao Martins <joao.m.martins@oracle.com>
Cc: Linux Memory Management List <linux-mm@kvack.org>, Dan Williams <dan.j.williams@intel.com>, 
	Vishal Verma <vishal.l.verma@intel.com>, Dave Jiang <dave.jiang@intel.com>, 
	Naoya Horiguchi <naoya.horiguchi@nec.com>, Matthew Wilcox <willy@infradead.org>, 
	Jason Gunthorpe <jgg@ziepe.ca>, John Hubbard <jhubbard@nvidia.com>, Jane Chu <jane.chu@oracle.com>, 
	Mike Kravetz <mike.kravetz@oracle.com>, Andrew Morton <akpm@linux-foundation.org>, 
	Jonathan Corbet <corbet@lwn.net>, nvdimm@lists.linux.dev, linux-doc@vger.kernel.org
Content-Type: text/plain; charset="UTF-8"

On Thu, Jul 15, 2021 at 3:36 AM Joao Martins <joao.m.martins@oracle.com> wrote:
>
> Split the utility function prep_compound_page() into head and tail
> counterparts, and use them accordingly.
>
> This is in preparation for sharing the storage for / deduplicating
> compound page metadata.
>
> Signed-off-by: Joao Martins <joao.m.martins@oracle.com>
> Acked-by: Mike Kravetz <mike.kravetz@oracle.com>

Reviewed-by: Muchun Song <songmuchun@bytedance.com>