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Date:      Sun, 19 Sep 1999 12:51:18 -0700 (PDT)
From:      Matthew Jacob <mjacob@feral.com>
To:        Poul-Henning Kamp <phk@critter.freebsd.dk>
Cc:        Peter Wemm <peter@netplex.com.au>, Matthew Dillon <dillon@apollo.backplane.com>, dg@root.com, Greg Lehey <grog@lemis.com>, cvs-committers@FreeBSD.ORG, cvs-all@FreeBSD.ORG
Subject:   Re: User block device access (was: cvs commit: src/sys/miscfs/specfs spec_vnops.c src/sys/sys vnode.h src/sys/kern vfs_subr.c) 
Message-ID:  <Pine.BSF.4.05.9909191250390.42176-100000@semuta.feral.com>
In-Reply-To: <17261.937766384@critter.freebsd.dk>

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On Sun, 19 Sep 1999, Poul-Henning Kamp wrote:

> In message <19990919183556.802C81CA7@overcee.netplex.com.au>, Peter Wemm writes
> :
> 
> >I personally like the idea of doing buffered IO via the VM system.
> >[...].  struct buf then
> >becomes just a plain IO request for the device interface.  Of course, this
> >is easier said than done so I'll shut up now. :-)
> 
> Now *that* would be a neat way to do it.

That would definitely be the right thing to do, but it means that any
performance problems would have the VM and the FileSystem folks all
pointing fingers at each other... :-)





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