approach on getting nullfs to work again
Simon 'corecode' Schubert
corecode at fs.ei.tum.de
Sat Aug 27 04:30:39 PDT 2005
[revisiting nullfs after half a year]
Matthew Dillon wrote:
:On Wed, Feb 09, 2005 at 02:38:30PM -0800, Matthew Dillon wrote:
:> The idea being that instead of having nullfs fake-up
:> vnodes (like it does in FreeBSD) we instead have it return the *actual*
:> vnode and only fake-up the namecache topology.
:I think we still have to create "fake" vnodes because we have to catch
:and certain VOPs in the nullfs directly instead of passing them to the
:parent. One important issue is fstatfs, but the directory operations
:have similiar needs.
Only for unionfs. For nullfs (where no merging is taking place) I
am pretty certain we don't have to fake file OR directory vnodes.
Alright, after reading code again and thinking about it I see that we
don't need faked vnodes :)
This is nice, indeed. I'll look into that after I finish my thesis in
early september, unless somebody beats me to it :) I can give insight
on the inner workings of the namecache as far as I understood it, though.
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