linux-ext4 - Re: "data=writeback" and TRIM don't get along

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Message-ID: <4BBDF6F4.2020208@redhat.com>
Date:	Thu, 08 Apr 2010 10:32:04 -0500
From:	Eric Sandeen <sandeen@...hat.com>
To:	Nebojsa Trpkovic <trx.lists@...il.com>
CC:	linux-ext4@...r.kernel.org
Subject: Re: "data=writeback" and TRIM don't get along

Nebojsa Trpkovic wrote:

> Well, to be honest, I'm not some programmer guy, so I doubt my skills
> can be of any help here.
> 
> Second, unfortunately, my SSD is now my root partition (just one big
> sda1), so I cannot experiment with it too much.

Well, you might just keep in mind that:

1) trimming these small amounts has actually looked very inefficient, and
2) data=writeback really isn't very safe in the face of a crash or power loss, and
3) hopefully we'll have a better trim solution eventually.

-Eric

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