Messages in this thread | | | Date | Sat, 5 Jun 2010 21:39:30 +1000 | From | Nick Piggin <> | Subject | Re: [PATCH, RFC] tty: stop abusing file->f_u.fu_list |
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On Fri, Jun 04, 2010 at 02:39:34PM -0400, Christoph Hellwig wrote: > The ttry code currently abuses the file anchor for the per-sb file list > to track instances of a given tty. But there's no good reason for > that, we can just install a proxy object in file->private that gets > added to the list and points to the tty and keep the list away from > VFS internals.
Well thanks for this. Yes it is an obviously nicer way to do it, so tty doesn't have to know what vfs uses files list for.
> Note that I've just if 0'd the selinux mess poking into it. While we > could trivially port it to the new code by making the tty_private > structure public this code is just too revolting to be kept around. > It would never have been there anyway if a person with some amount of > clue had ever reviewed the selinux code. And no, it's not just the > tty portion, the rest of that function is just as bad.
Why is it a mess? Just because of the conceptual nastiness of checking a tty object via a random one of its inodes? How would be a better way to do this?
I think for a first pass, a simple conversion for all code would be good for me because then it stops blocking the scaling patch. (and it's more bisectable).
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