From: Liu Bo <bo.li.liu@oracle.com>
To: Martin Steigerwald <Martin@lichtvoll.de>
Cc: linux-btrfs@vger.kernel.org,
Marcel Ritter <ritter.marcel@gmail.com>,
Christian Robert <christian.robert@polymtl.ca>,
"alanqk@gmail.com" <alanqk@gmail.com>
Subject: Re: [PATCH] Btrfs-progs: add dedup subcommand
Date: Tue, 31 Dec 2013 11:18:36 +0800 [thread overview]
Message-ID: <20131231031835.GA30107@localhost.localdomain> (raw)
In-Reply-To: <10456749.stdChJhbpX@merkaba>
On Mon, Dec 30, 2013 at 12:34:42PM +0100, Martin Steigerwald wrote:
> Am Montag, 30. Dezember 2013, 16:12:55 schrieben Sie:
> > This adds deduplication subcommands, 'btrfs dedup command <path>',
> > including enable/disable/on/off.
>
> Nice. Looking forward to test it.
Well, I just got a report from another user, Marcel, who still got ENOSPC errors with this
around of patch set, so it seems that I don't really fix that bug, I guess I
have to work harder on this :-(
>
> > - btrfs dedup enable
> > Create the dedup tree, and it's the very first step when you're going to use
> > the dedup feature.
> >
> > - btrfs dedup disable
> > Delete the dedup tree, after this we're not able to use dedup any more
> > unless you enable it again.
>
> So if deduplication has been switched on for a while, btrfs dedup disable will
> cause BTRFS to undo the deduplication (and thus require more space for the
> same amount of data)?
No, it remains unchanged, and the data is independent of dedupe, so you can read
them without any problems.
Happy new year.
Thanks,
-liubo
next prev parent reply other threads:[~2013-12-31 3:18 UTC|newest]
Thread overview: 34+ messages / expand[flat|nested] mbox.gz Atom feed top
2013-12-30 8:12 [RFC PATCH v8 00/14] Online(inband) data deduplication Liu Bo
2013-12-30 8:12 ` [PATCH v8 01/14] Btrfs: skip merge part for delayed data refs Liu Bo
2013-12-30 8:12 ` [PATCH v8 02/14] Btrfs: improve the delayed refs process in rm case Liu Bo
2013-12-30 8:12 ` [PATCH v8 03/14] Btrfs: introduce a head ref rbtree Liu Bo
2013-12-30 8:12 ` [PATCH v8 04/14] Btrfs: disable qgroups accounting when quata_enable is 0 Liu Bo
2013-12-30 8:12 ` [PATCH v8 05/14] Btrfs: introduce dedup tree and relatives Liu Bo
2013-12-30 8:12 ` [PATCH v8 06/14] Btrfs: introduce dedup tree operations Liu Bo
2013-12-30 8:12 ` [PATCH v8 07/14] Btrfs: introduce dedup state Liu Bo
2013-12-30 8:12 ` [PATCH v8 08/14] Btrfs: make ordered extent aware of dedup Liu Bo
2013-12-30 8:12 ` [PATCH v8 09/14] Btrfs: online(inband) data dedup Liu Bo
2013-12-30 8:12 ` [PATCH v8 10/14] Btrfs: skip dedup reference during backref walking Liu Bo
2013-12-30 8:12 ` [PATCH v8 11/14] Btrfs: don't return space for dedup extent Liu Bo
2013-12-30 8:12 ` [PATCH v8 12/14] Btrfs: add ioctl of dedup control Liu Bo
2013-12-30 8:12 ` [PATCH v8 13/14] Btrfs: fix dedupe 'ENOSPC' problem Liu Bo
2013-12-30 8:12 ` [PATCH v8 14/14] Btrfs: fix a crash of dedup ref Liu Bo
2013-12-30 8:12 ` [PATCH] Btrfs-progs: add dedup subcommand Liu Bo
2013-12-30 11:34 ` Martin Steigerwald
2013-12-31 3:18 ` Liu Bo [this message]
2013-12-31 3:24 ` Kai Krakow
2014-01-14 17:34 ` David Sterba
2014-01-15 1:35 ` Liu Bo
2014-01-17 16:14 ` David Sterba
2014-01-02 14:32 ` [RFC PATCH v8 00/14] Online(inband) data deduplication Konstantinos Skarlatos
2014-01-02 15:02 ` Konstantinos Skarlatos
2014-02-25 19:22 ` Jannis Achstetter
2014-02-25 19:39 ` Jannis Achstetter
2014-02-26 20:20 ` Jannis Achstetter
2014-02-27 2:39 ` Liu Bo
-- strict thread matches above, loose matches on Subject: below --
2013-07-31 15:37 [RFC PATCH v5 0/5] Online " Liu Bo
2013-07-31 15:37 ` [PATCH] Btrfs-progs: add dedup subcommand Liu Bo
2013-07-31 16:30 ` Stefan Behrens
2013-08-01 10:17 ` Liu Bo
2013-08-01 22:01 ` Mark Fasheh
2013-08-02 2:29 ` Liu Bo
2013-05-14 12:08 [RFC PATCH V4 0/2] Online data deduplication Liu Bo
2013-05-14 12:08 ` [PATCH] Btrfs-progs: add dedup subcommand Liu Bo
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