linux-kernel - Re: [PATCH 5/5] libata: Add support for TRIM

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Message-ID: <20090402175539.GR2661@linux.intel.com>
Date:	Thu, 2 Apr 2009 10:55:40 -0700
From:	Matthew Wilcox <willy@...ux.intel.com>
To:	Mark Lord <liml@....ca>
Cc:	linux-ide@...r.kernel.org, linux-kernel@...r.kernel.org,
	jgarzik@...hat.com, David Woodhouse <David.Woodhouse@...el.com>
Subject: Re: [PATCH 5/5] libata: Add support for TRIM

On Thu, Apr 02, 2009 at 01:20:01PM -0400, Mark Lord wrote:
> Now we just need an implementation of ata_discard_fn()
> that issues the CFA ERASE SECTORS command instead of TRIM
> when speaking to a CFA device.

Yes, should be quite straightforward.  The only minor wrinkle I can see
is that CFA ERASE SECTORS only allows you to erase up to 256 sectors at a
time.  I think Dave's infrastructure for Discard lets us handle that ...

> Ah, life is good!

Isn't it though?
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