Re: [PATCH] Permissions don't stick on ConfigFS attributes

From: Jon Smirl
Date: Fri Aug 19 2005 - 20:23:03 EST


On 8/19/05, Daniel Phillips <phillips@xxxxxxxxx> wrote:
> Hi Joel,
>
> Permissions set on ConfigFS attributes (aka files) do not stick. The reason
> is that configfs attribute inodes are not pinned and simply disappear after
> each file operation. This is good because it saves memory, but it is not
> good to throw the permissions away - you then don't have any way to expose
> configuration tweaks to normal users. The patch below fixes this by copying
> each file's mode back into the non-transient backing structure on dentry
> delete.

A patch for making sysfs attributes persistent has recently made it
into Linus' tree.

http://article.gmane.org/gmane.linux.hotplug.devel/7927/match=sysfs+permissions

--
Jon Smirl
jonsmirl@xxxxxxxxx
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