From mboxrd@z Thu Jan  1 00:00:00 1970
From: Jeff Garzik <jeff@garzik.org>
Subject: Re: [PATCH] sysfs: add filter function to groups
Date: Mon, 29 Oct 2007 13:27:42 -0400
Message-ID: <4726180E.5030909@garzik.org>
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To: James Bottomley <James.Bottomley@SteelEye.com>
Cc: Cornelia Huck <cornelia.huck@de.ibm.com>, Kay Sievers <kay.sievers@vrfy.org>, Greg KH <greg@kroah.com>, linux-scsi <linux-scsi@vger.kernel.org>, linux-kernel <linux-kernel@vger.kernel.org>

James Bottomley wrote:
> visibility and creation are the same thing, aren't they?  An invisible
> attribute doesn't appear in the sysfs directory, so it's equivalent to
> the file for it not being created.


What about the case where it's visible at creation time, but then needs 
to be made selectively invisible later on?

That implies either a remove operation or dentry checks on each lookup?

	Jeff