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Date: Mon, 26 Jul 2004 18:20:22 -0400 (EDT)
From: Garrett Wollman <wollman@khavrinen.lcs.mit.edu>
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To: Scott Long <scottl@FreeBSD.ORG>
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Subject: Re: magic sysrq keys functionality
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<<On Mon, 26 Jul 2004 16:06:33 -0600 (MDT), Scott Long <scottl@FreeBSD.ORG> said:

> This works right now because we assume that disks will commit blocks
> in order, and that assumption generally hasn't been broken.

I don't think soft updates cares about what order blocks are
committed, because it will not in general consider a dependency
resolved until it is notified that the buffer has been written.  What
we do assume is that the disk (or driver) doesn't lie to us and claim
that a block was written when it really wasn't.

-GAWollman