Re: [RFC][PATCH] ensure i_ino uniqueness in filesystems without permanent inode numbers (via idr)

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Brad Boyer wrote:
On Fri, Dec 01, 2006 at 12:21:36PM -0500, Jeff Layton wrote:
Here's an updated (but untested) patch based on your suggestions. I also went
ahead and made the exported symbols GPL-only since that seems like it would be
appropriate here. Any further thoughts on it?
This seems like exactly the sort of thing that should be a generic
service available to all filesystem implementors whether it's GPL or
not. The usual justification for GPL-only is that it's something
random modules shouldn't be touching anyway, but it's something that
some part of the tree which could be a module needs.
My main reasoning for doing this was that the structures involved are
per-superblock. There is virtually no reason that a filesystem would
ever need to touch these structures in another filesystem.
So, this is essentially a service to make it easy for filesystems to
implement i_ino uniqueness. I'm not terribly interested in making things
easier for proprietary filesystems, so I don't see a real reason to make
this available to them. They can always implement their own scheme to do
I'm certainly open to discussion though. Is there a compelling reason to
open this up to proprietary software authors?
-- Jeff

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