[Linux-cluster] Re: GFS, what's remaining
Joel Becker
Joel.Becker at oracle.com
Sun Sep 4 05:00:26 UTC 2005
On Sun, Sep 04, 2005 at 12:51:10AM -0400, Daniel Phillips wrote:
> Clearly, I ought to have asked why dlmfs can't be done by configfs. It is the
> same paradigm: drive the kernel logic from user-initiated vfs methods. You
> already have nearly all the right methods in nearly all the right places.
configfs, like sysfs, does not support ->open() or ->release()
callbacks. And it shouldn't. The point is to hide the complexity and
make it easier to plug into.
A client object should not ever have to know or care that it is
being controlled by a filesystem. It only knows that it has a tree of
items with attributes that can be set or shown.
Joel
--
"In a crisis, don't hide behind anything or anybody. They're going
to find you anyway."
- Paul "Bear" Bryant
Joel Becker
Senior Member of Technical Staff
Oracle
E-mail: joel.becker at oracle.com
Phone: (650) 506-8127
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