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

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Message-ID: <3ae72650712100451h6a84d6cfs9b3a2954c13c4612@mail.gmail.com>
Date:	Mon, 10 Dec 2007 13:51:43 +0100
From:	"Kay Sievers" <kay.sievers@...y.org>
To:	"Evgeniy Polyakov" <johnpol@....mipt.ru>
Cc:	lkml <linux-kernel@...r.kernel.org>, netdev@...r.kernel.org,
	linux-fsdevel@...r.kernel.org, "Greg KH" <greg@...ah.com>
Subject: Re: [1/4] DST: Distributed storage documentation.

On Dec 10, 2007 12:47 PM, Evgeniy Polyakov <johnpol@....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
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