Messages in this thread | | | Subject | Re: [PATCH] sysfs: add filter function to groups | From | James Bottomley <> | Date | Mon, 29 Oct 2007 12:29:27 -0500 |
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On Mon, 2007-10-29 at 13:27 -0400, Jeff Garzik wrote: > 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?
Yes, that comes with the bitmap manipulation code. There will be a way to add and remove runtime visibility. I just wanted to get the basic concept agreed to first.
James
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