Re: [1/4] DST: Distributed storage documentation.

["Kay Sievers" <kay.sievers@vrfy.org>]

On Dec 10, 2007 12:47 PM, Evgeniy Polyakov <johnpol@2ka.mipt.ru> wrote:
> diff --git a/Documentation/dst/sysfs.txt b/Documentation/dst/sysfs.txt
> new file mode 100644
> index 0000000..79d79dc
> --- /dev/null
> +++ b/Documentation/dst/sysfs.txt
> @@ -0,0 +1,30 @@
> +This file describes sysfs files created for each storage.
> +
> +1. Per-storage files.
> +Each storage has its own dir /sysfs/devices/$storage_name,

It's always /sys/devices/.

> +which contains following files:
> +
> +alg - contains name of the algorithm used to created given storage
> +name - name of the storage
> +nodes - map of the storage (list of nodes and their sizes and starts)
> +remove_all_nodes - writable file which allows to remove all nodes from given
> +       storage
> +n-$start-$cookie - per node directory, where
> +       $start - start of the given node in sectors,
> +       $cookie - unique node's id used by DST
> +
> +2. Per-node files.
> +Node's files are located in /sysfs/devices/$storage_name/n-$start-$cookie
> +directory, described above.

To which class or bus do the devices you create belong? Care to show a
"tree" or "ls -la" of the device?

Kay