linux-kernel - Re: [GIT PULL] Btrfs

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]

Message-ID: <52330E18.5040405@redhat.com>
Date:	Fri, 13 Sep 2013 09:07:36 -0400
From:	Ric Wheeler <rwheeler@...hat.com>
To:	Chris Mason <chris.mason@...ionio.com>
CC:	Linus Torvalds <torvalds@...ux-foundation.org>,
	linux-btrfs@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: Re: [GIT PULL] Btrfs

On 09/12/2013 11:36 AM, Chris Mason wrote:
> Mark Fasheh's offline dedup work is also here.  In this case offline
> means the FS is mounted and active, but the dedup work is not done
> inline during file IO.   This is a building block where utilities  are
> able to ask the FS to dedup a series of extents.  The kernel takes
> care of verifying the data involved really is the same.  Today this
> involves reading both extents, but we'll continue to evolve the patches.

Nice feature!

Just a note, the "offline" label is really confusing. In other storage products, 
they typically call this "out of band" since you are online but not during the 
actual write in a synchronous way :)

Ric


--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@...r.kernel.org
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/