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Date:      Wed, 24 Jul 1996 18:00:37 +0100 (BST)
From:      Doug Rabson <dfr@render.com>
To:        Poul-Henning Kamp <phk@critter.tfs.com>
Cc:        Bruce Evans <bde@zeta.org.au>, CVS-committers@freefall.freebsd.org, cvs-all@freefall.freebsd.org, cvs-sys@freefall.freebsd.org, phk@freefall.freebsd.org
Subject:   Re: cvs commit: src/sys/dev/ccd ccd.c src/sys/dev/vn vn.c src/sys/sys          conf.h src/sys/i386/isa fd.c mcd.c scd.c wcd.c wd.c wt.c          src/sys/i386/isa/matcd matcd.c src/sys/kern kern_conf.c src/sys/scsi          cd.c od.c sd.c st.c
Message-ID:  <Pine.BSI.3.95.960724175728.21148A-100000@minnow.render.com>
In-Reply-To: <1252.838214941@critter.tfs.com>

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On Wed, 24 Jul 1996, Poul-Henning Kamp wrote:

> In message <199607241026.UAA21158@godzilla.zeta.org.au>, Bruce Evans writes:
> >>  Log:
> >>  Make a "DWIM" function for adding [bc]devsw entries for bdev drivers.
> >>  
> 
> >This broke wcd, which has bogusly different open and close functions for
> >cdevs and bdevs.  Compiling LINT gives a nice warning that the cdev open
> >and close functions are no longer used.
> 
> sorry, will fix.
> 
> >...  Thus the current interface is not worth preserving.
> 
> My conclusion was that considering that we didn't really like the current
> interface very much, it was stupid to waste so much space on doing the
> same thing over and over...
> 
> I sincerely belive it's time to get DEVFS kicked the next mile and get
> rid of this problem once and for all.
> 
> Too bad about the crowd screaming for "persistence" in DEVFS :-(

Then we should let Terry loose on the VFS interface as long as he promises
to fix the union filesystem.  There should be enough functionality in
unionfs for most of the persistence needed as long as we implement
whiteouts.

--
Doug Rabson, Microsoft RenderMorphics Ltd.	Mail:  dfr@render.com
						Phone: +44 171 251 4411
						FAX:   +44 171 251 0939




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