linux-kernel - Re: [PATCH 05/13] mm: Allow compound zone device pages

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Date: Thu, 27 Jun 2024 07:35:00 +0200
From: Christoph Hellwig <hch@....de>
To: Alistair Popple <apopple@...dia.com>
Cc: dan.j.williams@...el.com, vishal.l.verma@...el.com,
	dave.jiang@...el.com, logang@...tatee.com, bhelgaas@...gle.com,
	jack@...e.cz, jgg@...pe.ca, catalin.marinas@....com,
	will@...nel.org, mpe@...erman.id.au, npiggin@...il.com,
	dave.hansen@...ux.intel.com, ira.weiny@...el.com,
	willy@...radead.org, djwong@...nel.org, tytso@....edu,
	linmiaohe@...wei.com, david@...hat.com, peterx@...hat.com,
	linux-doc@...r.kernel.org, linux-kernel@...r.kernel.org,
	linux-arm-kernel@...ts.infradead.org, linuxppc-dev@...ts.ozlabs.org,
	nvdimm@...ts.linux.dev, linux-cxl@...r.kernel.org,
	linux-fsdevel@...r.kernel.org, linux-mm@...ck.org,
	linux-ext4@...r.kernel.org, linux-xfs@...r.kernel.org,
	jhubbard@...dia.com, hch@....de, david@...morbit.com,
	Jason Gunthorpe <jgg@...dia.com>
Subject: Re: [PATCH 05/13] mm: Allow compound zone device pages

On Thu, Jun 27, 2024 at 10:54:20AM +1000, Alistair Popple wrote:
>  static struct nouveau_dmem_chunk *nouveau_page_to_chunk(struct page *page)
>  {
> -	return container_of(page->pgmap, struct nouveau_dmem_chunk, pagemap);
> +	return container_of(page_dev_pagemap(page), struct nouveau_dmem_chunk, pagemap);

Overly long line hee (and quite a few more).