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Date: Fri, 19 Nov 2010 09:10:07 -0500
From: Christoph Hellwig <hch@infradead.org>
To: "Ted Ts'o" <tytso@mit.edu>, Mark Lord <kernel@teksavvy.com>,
        Steven Whitehouse <swhiteho@redhat.com>,
        Lukas Czerner <lczerner@redhat.com>,
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Subject: Re: [PATCH 1/2] fs: Do not dispatch FITRIM through separate
 super_operation
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On Fri, Nov 19, 2010 at 09:02:03AM -0500, Ted Ts'o wrote:
> Deterministic TRIM is an option.  It doesn't have to be implemented.

For reasonable use it has to.  That rationale for it is pretty clearly
outline in ftp://ftp.t10.org/t10/document.08/08-347r1.pdf.

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