Coda File System

Re: FUSE/pioctl (was Re: Coda development roadmap)

From: Andrew Deason <>
Date: Tue, 19 Aug 2014 22:51:43 -0500
On Tue, 5 Aug 2014 22:48:11 +0200
<> wrote:

> On Tue, Aug 05, 2014 at 10:51:53AM -0500, Andrew Deason wrote:
> > > Does FUSE provide a suitable counterpart to the pioctl?
> > 
> > It should be possible to implement pioctls using ioctls or xattrs
> > (both of which FUSE supports, iirc). If I were to ever spend more
> > time on the openafs FUSE implementation, that is the route I assumed
> > I would take to get pioctl support. (I think I talked a little about
> > this during some
> This sounds good. I have possibly a too pessimistic view on pioctls
> and on FUSE.
> > presentation; I can find a link if anyone wants.)
> Yes I would be interested to read if you have a link at hand.

Sorry that took a little while; I had to go find this again:
the part that's most relevant to this starts at around 7:45. I don't
know if there's anything in there that you don't already know, though :)

There are a couple of mailing list threads related to this, too:

I don't think any real work or changes have occurred since then. In
retrospect watching that again, my first impression is that using a unix
domain socket using some marshalling mechanism would be easiest. rmtsys,
if you have anything like that. I'm also not really opposed to using
plain ioctls like I apparently was before, but it's been much longer
since I ever looked at anything in this area.

Andrew Deason
Received on 2014-08-20 00:01:58