linux-kernel - Re: [PATCH V3 10/21] famfs

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Message-ID: <20260108123638.0000442e@huawei.com>
Date: Thu, 8 Jan 2026 12:36:38 +0000
From: Jonathan Cameron <jonathan.cameron@...wei.com>
To: John Groves <John@...ves.net>
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
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Subject: Re: [PATCH V3 10/21] famfs_fuse: Kconfig

On Wed,  7 Jan 2026 09:33:19 -0600
John Groves <John@...ves.net> wrote:

> Add FUSE_FAMFS_DAX config parameter, to control compilation of famfs
> within fuse.
> 
> Signed-off-by: John Groves <john@...ves.net>

A separate commit for this doesn't obviously add anything over combining
it with first place the CONFIG_xxx is used.

Maybe it's a convention for fs/fuse though. If it is ignore me.

> ---
>  fs/fuse/Kconfig | 14 ++++++++++++++
>  1 file changed, 14 insertions(+)
> 
> diff --git a/fs/fuse/Kconfig b/fs/fuse/Kconfig
> index 3a4ae632c94a..3b6d3121fe40 100644
> --- a/fs/fuse/Kconfig
> +++ b/fs/fuse/Kconfig
> @@ -76,3 +76,17 @@ config FUSE_IO_URING
>  
>  	  If you want to allow fuse server/client communication through io-uring,
>  	  answer Y
> +
> +config FUSE_FAMFS_DAX
> +	bool "FUSE support for fs-dax filesystems backed by devdax"
> +	depends on FUSE_FS
> +	depends on DEV_DAX
> +	default FUSE_FS
> +	select DEV_DAX_FS
> +	help
> +	  This enables the fabric-attached memory file system (famfs),
> +	  which enables formatting devdax memory as a file system. Famfs
> +	  is primarily intended for scale-out shared access to
> +	  disaggregated memory.
> +
> +	  To enable famfs or other fuse/fs-dax file systems, answer Y