[dm-crypt] Status of trim for SSds?

MkFly mmkfly at gmail.com
Sun Jul 24 19:18:07 CEST 2011


Will this also enable TRIM support for LVM volumes inside a
LUKS-encrypted partition?


On Thu, Jul 14, 2011 at 8:55 AM, Milan Broz <mbroz at redhat.com> wrote:
> On 07/14/2011 04:46 PM, André 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-crypt-optionally-support-discard-requests.patch
>
> Optional cryptsetup support will follow later (currently you have to use dmsetup).
>
> My opinion is that TRIM for encrypted disk is stupid idea, but so many people
> requested it... So enjoy shooting yourself in the foot ;-)
>
> Note - it will NEVER be enabled by default.
>
> Milan
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