linux-kernel - Re: [PATCH] doc: Remove misleading reference to brd in dax.rst

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Message-ID: <87sejn8xml.fsf@trenco.lwn.net>
Date: Wed, 25 Jun 2025 12:49:38 -0600
From: Jonathan Corbet <corbet@....net>
To: Daniel Palmer via B4 Relay <devnull+daniel.palmer.sony.com@...nel.org>,
 Dan Williams <dan.j.williams@...el.com>
Cc: linux-doc@...r.kernel.org, linux-kernel@...r.kernel.org, Daniel Palmer
 <daniel.palmer@...y.com>
Subject: Re: [PATCH] doc: Remove misleading reference to brd in dax.rst

Daniel Palmer via B4 Relay <devnull+daniel.palmer.sony.com@...nel.org>
writes:

> From: Daniel Palmer <daniel.palmer@...y.com>
>
> brd hasn't supported DAX for a long time but dax.rst
> still suggests it as an example of how to write a DAX
> supporting block driver.
>
> Remove the reference, confuse less people.
>
> Fixes: 7a862fbbdec6 ("brd: remove dax support")
> Signed-off-by: Daniel Palmer <daniel.palmer@...y.com>
> ---
>  Documentation/filesystems/dax.rst | 1 -
>  1 file changed, 1 deletion(-)
>
> diff --git a/Documentation/filesystems/dax.rst b/Documentation/filesystems/dax.rst
> index 08dd5e254cc5..5b283f3d1eb1 100644
> --- a/Documentation/filesystems/dax.rst
> +++ b/Documentation/filesystems/dax.rst
> @@ -206,7 +206,6 @@ stall the CPU for an extended period, you should also not attempt to
>  implement direct_access.
>  
>  These block devices may be used for inspiration:
> -- brd: RAM backed block device driver
>  - pmem: NVDIMM persistent memory driver

Applied, thanks.

jon