linux-kernel - Re: [PATCH 1/3] [RFC] genhd: add a new attribute in device structure

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Message-ID: <20110616180233.GN11521@ZenIV.linux.org.uk>
Date:	Thu, 16 Jun 2011 19:02:33 +0100
From:	Al Viro <viro@...IV.linux.org.uk>
To:	Douglas Gilbert <dgilbert@...erlog.com>
Cc:	James Bottomley <James.Bottomley@...senPartnership.com>,
	Greg KH <greg@...ah.com>,
	Nao Nishijima <nao.nishijima.xt@...achi.com>,
	linux-scsi@...r.kernel.org, linux-kernel@...r.kernel.org,
	kay.sievers@...y.org, jcm@...hat.com, hare@...e.de,
	stefanr@...6.in-berlin.de, yrl.pp-manager.tt@...achi.com
Subject: Re: [PATCH 1/3] [RFC] genhd: add a new attribute in device structure

On Thu, Jun 16, 2011 at 01:32:10PM -0400, Douglas Gilbert wrote:

> As James' notes each storage device can only have one
> "preferred name" at a time. But how can that preferred name
> be represented in sysfs ? If /sys/block/<kernel_name>
> suddenly changed to /sys/block/<preferred_name> that would
> be very disruptive. I would prefer something like
> /sys/class/block_preferred_name/<preferred_name> was introduced
> as a symlink to /sys/block/<kernel_name> but that would require
> that all <preferred_name>s were unique. [Not a bad restriction
> IMO]. If the <preferred_name> was only placed in the
> /sys/block/<kernel_name> directory that would be ugly from
> the user space tool point of view.

Oh, rapture... so now we can expect the container crowd to introduce
yet *another* "namespace" ;-/
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