Al,
I'm still unsure why you object to JFS using any ioctl's.  I tried to
explain that I wanted to use the ioctl's for operations that are
specific to the JFS utilities.  I thought the procfs would be a useful
mechanism for debugging, on-the-fly performance tuning, and the like.  I
didn't state it directly, but I assumed the procfs stuff would not be
enabled by default, so I was less concerned about the drawbacks of
procfs.

My main point was that I was planning on using some ioctl's for the
utilities, and that I did not plan use ioctl's for a bunch of other
purposes, like debugging.

Are you okay with JFS using a few ioctl's in the utilities and
continuing the discussion of whether more general-purpose metadata
access should occur in procfs or under your proposal?

-- 
David Kleikamp
IBM Linux Technology Center
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