[PATCH 1/2] erofs: add documentation for 'domain_id' mount option

[Gao Xiang]

On 2023/1/11 16:15, Jingbo Xu wrote:
> The share domain feature for fscache mode has been merged, and let's add
> documentation for 'domain_id' mount option.
Since the EROFS share domain feature for fscache mode has been available
since Linux v6.1, let's add documentation for 'domain_id' mount option.

Cc: linux-doc at vger.kernel.org

> 
> Signed-off-by: Jingbo Xu <jefflexu at linux.alibaba.com>
> ---
>   Documentation/filesystems/erofs.rst | 3 +++
>   1 file changed, 3 insertions(+)
> 
> diff --git a/Documentation/filesystems/erofs.rst b/Documentation/filesystems/erofs.rst
> index 067fd1670b1f..958cad2c4997 100644
> --- a/Documentation/filesystems/erofs.rst
> +++ b/Documentation/filesystems/erofs.rst
> @@ -120,6 +120,9 @@ dax={always,never}     Use direct access (no page cache).  See
>   dax                    A legacy option which is an alias for ``dax=always``.
>   device=%s              Specify a path to an extra device to be used together.
>   fsid=%s                Specify a filesystem image ID for Fscache back-end.
> +domain_id=%s           Specify a domain ID for Fscache back-end.  The blob
> +                       images are shared among filesystem instances in the same
> +                       domain.

domain_id=%s           Specify a domain ID in fscache mode so that different images
                        with the same blobs under a given domain ID can share storage.

Thanks,
Gao Xiang

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