From: Greg KH <greg@kroah.com>
To: viro@parcelfarce.linux.theplanet.co.uk
Cc: Jonathan Corbet <corbet@lwn.net>, linux-kernel@vger.kernel.org
Subject: Re: [PATCH] RFC: Attributes in /sys/cdev
Date: Fri, 19 Sep 2003 19:47:12 -0700 [thread overview]
Message-ID: <20030920024712.GA9387@kroah.com> (raw)
In-Reply-To: <20030920012844.GD7665@parcelfarce.linux.theplanet.co.uk>
On Sat, Sep 20, 2003 at 02:28:44AM +0100, viro@parcelfarce.linux.theplanet.co.uk wrote:
>
> BTW, I suspect that we need a way to say "this kobject and its children
> will *never* have any attributes and will never be seen in sysfs". There
> are quite a few uses when we keep kobject as a refcounting vehicle, etc.,
> but have nothing meaningful to show in sysfs tree. Keep in mind that
> sysfs nodes (including attributes) are not free - it's struct inode +
> struct dentry at the very least. Both pinned down and permanently mapped...
Hm, I've used them this way by just calling kobject_init, kobject_get
and kobject_put. As long as you never call kobject_register or
kobject_add, the sysfs hookups never happen.
Is that what you are looking for?
thanks,
greg k-h
next prev parent reply other threads:[~2003-09-20 2:46 UTC|newest]
Thread overview: 10+ messages / expand[flat|nested] mbox.gz Atom feed top
2003-09-19 23:10 [PATCH] RFC: Attributes in /sys/cdev Jonathan Corbet
2003-09-19 23:32 ` Greg KH
2003-09-20 1:28 ` viro
2003-09-20 2:47 ` Greg KH [this message]
2003-09-22 16:29 ` Patrick Mochel
2003-09-22 16:46 ` Jonathan Corbet
2003-09-22 21:00 ` viro
2003-09-22 21:15 ` Jonathan Corbet
2003-09-22 22:37 ` viro
2003-09-24 22:22 ` Greg KH
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