Re: linux-next: build failure after merge of the device-mapper tree

[Mikulas Patocka <mpatocka@redhat.com>]

Hi

I've fixed the documentation indentations and folded it into the existing
commit in the linux-dm git.

Mikulas



On Fri, 15 Aug 2025, Stephen Rothwell wrote:

> Hi all,
> 
> After merging the device-mapper tree, today's linux-next build (htmldocs)
> failed like this:
> 
> Sphinx parallel build error:
> docutils.utils.SystemMessage: Documentation/admin-guide/device-mapper/dm-pcache.rst:27: (SEVERE/4) Title overline & underline mismatch.
> 
> -------------------------------------------------------------------------------
> Constructor
> ===========
> 
> Caused by commit
> 
>   6fb8fbbaf147 ("dm-pcache: add persistent cache target in device-mapper")
> 
> I have applied the following fix patch for today (there may be better).
> 
> From: Stephen Rothwell <sfr@canb.auug.org.au>
> Date: Fri, 15 Aug 2025 13:01:51 +1000
> Subject: [PATCH] fix up for "dm-pcache: add persistent cache target in
>  device-mapper"
> 
> Sphinx parallel build error:
> docutils.utils.SystemMessage: Documentation/admin-guide/device-mapper/dm-pcache.rst:27: (SEVERE/4) Title overline & underline mismatch.
> 
> Signed-off-by: Stephen Rothwell <sfr@canb.auug.org.au>
> ---
>  Documentation/admin-guide/device-mapper/dm-pcache.rst | 8 ++++++++
>  1 file changed, 8 insertions(+)
> 
> diff --git a/Documentation/admin-guide/device-mapper/dm-pcache.rst b/Documentation/admin-guide/device-mapper/dm-pcache.rst
> index e6433fab7bd6..550026219a6f 100644
> --- a/Documentation/admin-guide/device-mapper/dm-pcache.rst
> +++ b/Documentation/admin-guide/device-mapper/dm-pcache.rst
> @@ -25,6 +25,7 @@ Quick feature summary
>  * *Log-structured write-back* that preserves backend crash-consistency
>  
>  -------------------------------------------------------------------------------
> +
>  Constructor
>  ===========
>  
> @@ -58,6 +59,7 @@ The first time a pmem device is used, dm-pcache formats it automatically
>  (super-block, cache_info, etc.).
>  
>  -------------------------------------------------------------------------------
> +
>  Status line
>  ===========
>  
> @@ -98,6 +100,7 @@ Field meanings
>  ===============================  =============================================
>  
>  -------------------------------------------------------------------------------
> +
>  Messages
>  ========
>  
> @@ -108,6 +111,7 @@ Messages
>     dmsetup message <dev> 0 gc_percent <0-90>
>  
>  -------------------------------------------------------------------------------
> +
>  Theory of operation
>  ===================
>  
> @@ -152,6 +156,7 @@ range when it is inserted and stores it in the on-media key.  Reads
>  validate the CRC before copying to the caller.
>  
>  -------------------------------------------------------------------------------
> +
>  Failure handling
>  ================
>  
> @@ -164,6 +169,7 @@ Failure handling
>    use-after-free keys.
>  
>  -------------------------------------------------------------------------------
> +
>  Limitations & TODO
>  ==================
>  
> @@ -173,6 +179,7 @@ Limitations & TODO
>  * Discard planned.
>  
>  -------------------------------------------------------------------------------
> +
>  Example workflow
>  ================
>  
> @@ -197,5 +204,6 @@ Example workflow
>     dmsetup remove pcache_sdb
>  
>  -------------------------------------------------------------------------------
> +
>  ``dm-pcache`` is under active development; feedback, bug reports and patches
>  are very welcome!
> -- 
> 2.50.1
> 
> -- 
> Cheers,
> Stephen Rothwell
>