On Sun, Jul 3, 2011 at 6:00 PM, Werner Fischer <devlists@xxxxxxxx> wrote:
> Hi all,
>
> are there any plans that future versions of mkfs.btrfs will do an
> initial pre-discard for SSDs? (AFAIK mkfs.btrfs does not do this
> currently)
It should already have it. That is, if you look in the right place
commit e6bd18d8938986c997c45f0ea95b221d4edec095
Author: Christoph Hellwig <hch@xxxxxx>
Date: Thu Apr 21 16:24:07 2011 -0400
btrfs-progs: add discard support to mkfs
Discard the whole device before starting to create the filesystem
structures.
Modelled after similar support in mkfs.xfs.
Signed-off-by: Christoph Hellwig <hch@xxxxxx>
Signed-off-by: Chris Mason <chris.mason@xxxxxxxxxx>
IIRC it's already in tmp branch of Chris' btrfs-progs-unstable, but
not in master (yet).
--
Fajar
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