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Date:      Thu, 22 Jun 2000 15:22:12 -0500 (CDT)
From:      Chris Dillon <cdillon@wolves.k12.mo.us>
To:        Akinori -Aki- MUSHA <knu@idaemons.org>
Cc:        andrews@technologist.com, mckusick@FreeBSD.ORG, cvs-all@FreeBSD.ORG
Subject:   Re: cvs commit: src/sys/contrib/softupdates softdep.h ffs_softdep.c
Message-ID:  <Pine.BSF.4.20.0006221513300.6657-100000@mail.wolves.k12.mo.us>
In-Reply-To: <86g0q6gw5x.wl@localhost.local.idaemons.org>

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On Thu, 22 Jun 2000, Akinori -Aki- MUSHA wrote:

> At Wed, 21 Jun 2000 22:33:09 -0400,
> Will wrote:
> > On Wed, Jun 21, 2000 at 05:29:54PM -0700, Kirk McKusick wrote:
> > >   Modified files:
> > >     sys/contrib/softupdates softdep.h ffs_softdep.c 
> > >   Log:
> > >   Update to new copyright.
> > 
> > Does this mean we can now include softupdates in GENERIC?  And further,
> > is it practical to do this?  I have it enabled on all filesystems on my
> > local machines and have rarely (if ever) had problems directly related
> > to softupdates.
> 
> Yes, it has been working quite stably here too.  Besides, one must do
> a "tunefs -n enable" for every partition that he or she wants to do
> softupdates anyway, so just adding the support for softupdates to the
> GENERIC kernel won't hurt anyone who don't want to turn that feature
> on by default, except a little code increase.

I think it would be a very good idea to enable softupdates by default
when a new filesystem is created.  Modify newfs to do this and use
tunefs only if you want to _disable_ softupdates on a filesystem.  
This also means putting SoftUpdates into GENERIC.  Even better, change
the semantics and compile it in by default unless something like
NO_SOFTUPDATES is used.

I have had zero problems with softupdates on any of my machines since
3.0-RELEASE, and I even have it running on two production servers.  I
don't know where my patience and sanity would be without it.  :-)


-- Chris Dillon - cdillon@wolves.k12.mo.us - cdillon@inter-linc.net
   FreeBSD: The fastest and most stable server OS on the planet.
   For Intel x86 and Alpha architectures. ( http://www.freebsd.org )




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