linux-kernel - Re: [PATCH 1/2] fs: Do not dispatch FITRIM through separate super

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Message-ID: <20101119141007.GB25488@infradead.org>
Date:	Fri, 19 Nov 2010 09:10:07 -0500
From:	Christoph Hellwig <hch@...radead.org>
To:	Ted Ts'o <tytso@....edu>, Mark Lord <kernel@...savvy.com>,
	Steven Whitehouse <swhiteho@...hat.com>,
	Lukas Czerner <lczerner@...hat.com>,
	James Bottomley <James.Bottomley@...e.de>,
	Christoph Hellwig <hch@...radead.org>,
	Matthew Wilcox <matthew@....cx>,
	Josef Bacik <josef@...hat.com>, linux-ext4@...r.kernel.org,
	linux-kernel@...r.kernel.org, linux-fsdevel@...r.kernel.org,
	sandeen@...hat.com
Subject: Re: [PATCH 1/2] fs: Do not dispatch FITRIM through separate
 super_operation

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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