Re: [PATCH] cifs: document 'fsc' mount option

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On Tue, 27 Jul 2010 19:20:00 +0530
Suresh Jayaraman <sjayaraman@xxxxxxx> wrote:

> Document the newly added local caching feature using FS-Cache. This patch
> could be queued and considered once the local caching patches gets merged
> upstream.
> 
> Signed-off-by: Suresh Jayaraman <sjayaraman@xxxxxxx>
> ---
>  doc/mount.cifs.8.xml |   17 +++++++++++++++++
>  1 files changed, 17 insertions(+), 0 deletions(-)
> 
> diff --git a/doc/mount.cifs.8.xml b/doc/mount.cifs.8.xml
> index 4937550..2200746 100644
> --- a/doc/mount.cifs.8.xml
> +++ b/doc/mount.cifs.8.xml
> @@ -534,6 +534,23 @@ permissions in memory that can't be stored on the server. This information can d
>                  maximum wsize currently allowed by CIFS is 57344 (fourteen
>                  4096 byte pages)</para></listitem>
>  	</varlistentry>
> +	<varlistentry>
> +		<term>fsc</term>
> +
> +		<listitem><para>Enable local disk caching using FS-Cache
> +		for cifs. This option could be useful to improve performance
> +		on a slow link, heavily loaded server and/or network
> +		where reading from the disk is faster than reading from the
> +		server (over the network). This could also impact the
> +		scalability positively as the number of calls to the server
> +		are reduced. But, be warned that local caching is not suitable
> +		for all workloads, for e.g., read-once type workloads. So
> +		you need to consider carefully the situation/workload before
> +		using this option.
> +		NOTE: You also need to have cachefilesd daemon installed and
> +		running to make the cache operational.
> +                </para></listitem>
> +	</varlistentry>
>  	 <varlistentry>
>                  <term>--verbose</term>
>                  <listitem><para>Print additional debugging information for the mount. Note that this parameter must be specified before the -o. For example:</para><para>mount -t cifs //server/share /mnt --verbose -o user=username</para></listitem>
> --
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> 

merged
-- 
Jeff Layton <jlayton@xxxxxxxxxx>
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