linux-kernel - Re: [PATCH V3 03/21] dax: Save the kva from memremap

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Message-ID: <djiagki7jvoyonnr5ajt43xwasgil6j7sfjhs27gbb6uwckyds@i52ef23dwakh>
Date: Thu, 8 Jan 2026 09:15:29 -0600
From: John Groves <John@...ves.net>
To: Jonathan Cameron <jonathan.cameron@...wei.com>
Cc: Miklos Szeredi <miklos@...redi.hu>, 
	Dan Williams <dan.j.williams@...el.com>, Bernd Schubert <bschubert@....com>, 
	Alison Schofield <alison.schofield@...el.com>, John Groves <jgroves@...ron.com>, 
	Jonathan Corbet <corbet@....net>, Vishal Verma <vishal.l.verma@...el.com>, 
	Dave Jiang <dave.jiang@...el.com>, Matthew Wilcox <willy@...radead.org>, Jan Kara <jack@...e.cz>, 
	Alexander Viro <viro@...iv.linux.org.uk>, David Hildenbrand <david@...nel.org>, 
	Christian Brauner <brauner@...nel.org>, "Darrick J . Wong" <djwong@...nel.org>, 
	Randy Dunlap <rdunlap@...radead.org>, Jeff Layton <jlayton@...nel.org>, 
	Amir Goldstein <amir73il@...il.com>, Stefan Hajnoczi <shajnocz@...hat.com>, 
	Joanne Koong <joannelkoong@...il.com>, Josef Bacik <josef@...icpanda.com>, 
	Bagas Sanjaya <bagasdotme@...il.com>, Chen Linxuan <chenlinxuan@...ontech.com>, 
	James Morse <james.morse@....com>, Fuad Tabba <tabba@...gle.com>, 
	Sean Christopherson <seanjc@...gle.com>, Shivank Garg <shivankg@....com>, 
	Ackerley Tng <ackerleytng@...gle.com>, Gregory Price <gourry@...rry.net>, 
	Aravind Ramesh <arramesh@...ron.com>, Ajay Joshi <ajayjoshi@...ron.com>, venkataravis@...ron.com, 
	linux-doc@...r.kernel.org, linux-kernel@...r.kernel.org, nvdimm@...ts.linux.dev, 
	linux-cxl@...r.kernel.org, linux-fsdevel@...r.kernel.org
Subject: Re: [PATCH V3 03/21] dax: Save the kva from memremap

On 26/01/08 11:32AM, Jonathan Cameron wrote:
> On Wed,  7 Jan 2026 09:33:12 -0600
> John Groves <John@...ves.net> wrote:
> 
> > Save the kva from memremap because we need it for iomap rw support.
> > 
> > Prior to famfs, there were no iomap users of /dev/dax - so the virtual
> > address from memremap was not needed.
> > 
> > (also fill in missing kerneldoc comment fields for struct dev_dax)
> 
> Do that as a precursor that can be picked up ahead of the rest of the series.

Makes sense. Actually, I'll just send it as a separate standalone patch...

Thanks,
John

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