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Date: Tue, 05 May 1998 16:53:59 -0700
From: Julian Elischer <julian@whistle.com>
Organization: Whistle Communications
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To: KATO Takenori <kato@migmatite.eps.nagoya-u.ac.jp>
CC: phk@critter.freebsd.dk, bde@FreeBSD.ORG, cvs-committers@FreeBSD.ORG,
        cvs-all@FreeBSD.ORG, cvs-sys@FreeBSD.ORG
Subject: Re: cvs commit: src/sys/kern vfs_cluster.c
References: <354F65AA.41C67EA6@whistle.com> <19980506083028M.kato@gneiss.eps.nagoya-u.ac.jp>
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Ahh, then there may be a problem in vn under devfs/slice
because of course those bits are not on the SLICE devsw entry,
even though vn is ONE of the possible bottom layers.

julian


KATO Takenori wrote:
> 
> Julian Elischer <julian@whistle.com> wrote:
> 
> > I'm not sure what the author of those bits had in mind when they
> > added them.
> 
> Puropose of those bits is to disable clustered read/write in vn
> driver.  Clustered I/O put to much pressure on the vn when they were
> added.
> 
> -----------------------------------------------+--------------------------+
> Kato Takenori <kato@ganko.eps.nagoya-u.ac.jp>  |        FreeBSD           |
> Dept. Earth Planet. Sci, Nagoya Univ.          |   The powere to serve!   |
> Nagoya, 464-8602, Japan                        |  http://www.FreeBSD.org/ |
> ++++ FreeBSD(98) 2.2.6: Rev. 02 available!     +==========================+

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