linux-kernel - Re: [PATCH 06/13] mm/memory: Add dax_insert

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Message-ID: <20240702114601.GA15426@lst.de>
Date: Tue, 2 Jul 2024 13:46:01 +0200
From: Christoph Hellwig <hch@....de>
To: David Hildenbrand <david@...hat.com>
Cc: Alistair Popple <apopple@...dia.com>, 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, 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
Subject: Re: [PATCH 06/13] mm/memory: Add dax_insert_pfn

On Tue, Jul 02, 2024 at 09:18:31AM +0200, David Hildenbrand wrote:
> We have this comparably nasty vmf_insert_mixed() that FS dax abused to 
> insert into !VM_MIXED VMAs. Is that abuse now stopping and are there maybe 
> ways to get rid of vmf_insert_mixed()?

Unfortunately it is also used by a few drm drivers and not just DAX.