From: Eric Sandeen <sandeen@redhat.com>
Subject: Re: "data=writeback" and TRIM don't get along
Date: Thu, 08 Apr 2010 10:32:04 -0500
Message-ID: <4BBDF6F4.2020208@redhat.com>
References: <4BBD285B.9000603@gmail.com> <4BBD2FDF.4040407@redhat.com> <4BBD3365.90306@gmail.com> <4BBD5740.4070101@redhat.com> <4BBD5D90.4090203@redhat.com> <4BBD5FDB.9010100@redhat.com> <4BBDC2A3.1040901@gmail.com>
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Cc: linux-ext4@vger.kernel.org
To: Nebojsa Trpkovic <trx.lists@gmail.com>
In-Reply-To: <4BBDC2A3.1040901@gmail.com>
Sender: linux-ext4-owner@vger.kernel.org

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