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Date: Thu, 14 Jul 2011 17:55:25 +0200
From: Milan Broz <mbroz@redhat.com>
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Subject: Re: [dm-crypt] Status of trim for SSds?
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To: =?ISO-8859-1?Q?Andr=E9_Gall?= <dm-crypt@andregall.de>
Cc: dm-crypt@saout.de

On 07/14/2011 04:46 PM, Andr=E9 Gall wrote:

> Is the support of TRIM a feature that's planned for the future? If so,
> when? If not, why not?

Patch is in dm-devel list, hopefully in linux-next soon for kernel 3.1.
http://www.kernel.org/pub/linux/kernel/people/agk/patches/2.6/editing/dm-cr=
ypt-optionally-support-discard-requests.patch

Optional cryptsetup support will follow later (currently you have to use dm=
setup).

My opinion is that TRIM for encrypted disk is stupid idea, but so many peop=
le
requested it... So enjoy shooting yourself in the foot ;-)

Note - it will NEVER be enabled by default.

Milan