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Date: Thu, 22 Apr 2010 08:17:25 +0200
From: Heinz Diehl <htd@fancy-poultry.org>
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Subject: Re: [dm-crypt] LUKS - SSD trim
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On 22.04.2010, Felix Blanke wrote: 

> does anybody know a way to trim a luks encrypted SSD?

That's not possible because of a limitation in the underlying devicemapper.

> (btrfs filesystem on top, but I think that doesn't count)

Btrfs is specially suited for use with SSD, as a hint you could start with
what I have in fstab in the mount section: "nobarrier,ssd_spread".