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From: =?utf-8?Q?Dag-Erling_Sm=C3=B8rgrav?= <des@des.no>
To: Kip Macy <kmacy@freebsd.org>
References: <200906100121.n5A1LWVO089719@svn.freebsd.org>
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Date: Wed, 10 Jun 2009 12:02:12 +0200
In-Reply-To: <3c1674c90906100008i4c632312j32f223b8aca14934@mail.gmail.com>
	(Kip Macy's message of "Wed, 10 Jun 2009 00:08:43 -0700")
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Cc: svn-src-head@freebsd.org, svn-src-all@freebsd.org,
	src-committers@freebsd.org, Dmitry Morozovsky <marck@rinet.ru>
Subject: Re: svn commit: r193878 -
	head/sys/cddl/contrib/opensolaris/uts/common/fs/zfs
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Kip Macy <kmacy@freebsd.org> writes:
> Dmitry Morozovsky <marck@rinet.ru> writes:
> > Hmm, I failed to see how boolean prevent the usage:
> >
> > if arch=3D=3Di386 || memsize < 4G
> > =C2=A0 =C2=A0 =C2=A0 =C2=A0zfs_prefetch=3D0
> > else
> > =C2=A0 =C2=A0 =C2=A0 =C2=A0zfs_prefetch=3D1
> >
> > and admin can flip the switch to non-default position.
> >
> Right, what you're advocating is zfs_prefetch_non_default. Which is
> simpler, but still rather weird.

No, he's advocating zfs_prefetch_enable which is initialized to either 0
or 1 at boot time and can be administratively set to either 0 and 1
regardless of its initial value.  I don't see the problem...

DES
--=20
Dag-Erling Sm=C3=B8rgrav - des@des.no