linux-ext4 - Re: [PATCH 2/2] Add batched discard support for ext4.

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Message-ID: <4BD78E6C.6000709@teksavvy.com>
Date:	Tue, 27 Apr 2010 21:25:00 -0400
From:	Mark Lord <kernel@...savvy.com>
To:	Greg Freemyer <greg.freemyer@...il.com>
CC:	"Martin K. Petersen" <martin.petersen@...cle.com>,
	Ric Wheeler <rwheeler@...hat.com>,
	Eric Sandeen <sandeen@...hat.com>,
	Lukas Czerner <lczerner@...hat.com>,
	Jeff Moyer <jmoyer@...hat.com>, linux-ext4@...r.kernel.org,
	Edward Shishkin <eshishki@...hat.com>,
	Eric Sandeen <esandeen@...hat.com>,
	Christoph Hellwig <hch@...radead.org>
Subject: Re: [PATCH 2/2] Add batched discard support for ext4.

On 26/04/10 11:27 AM, Greg Freemyer wrote:
..
> Mark, or anyone, do you think it would be a bad idea for me to push
> for Opensuse 11.3 (2.6.34 based) to use wiper.sh as a standard ext4
> discard tool?  hdparm and wiper.sh are already in the distro, it just
> needs a cron entry and maybe some basic management infrastructure.
> They're at feature freeze for 11.3, so I don't know if I can get it in
> or not.
..

I'd hold off for now.  Rumour has it that Intel SSDs are not 100% compliant
with TRIM -- they fail with large amounts of range data.

I don't have an Intel SSD to verify that or fix it with.

Cheers
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