From: Andi Kleen <andi@firstfloor.org>
To: Zhihui Zhang <zzhsuny@gmail.com>
Cc: linux-kernel@vger.kernel.org, linux-btrfs@vger.kernel.org
Subject: Re: idea about internal fragmentation in Btrfs
Date: Sat, 19 Jun 2010 10:51:22 +0200 [thread overview]
Message-ID: <87k4pvo16d.fsf@basil.nowhere.org> (raw)
In-Reply-To: <AANLkTilWguh4IrDHVgtTxjoiAeSy23SK_M1dWapgvSDt@mail.gmail.com> (Zhihui Zhang's message of "Fri, 18 Jun 2010 14:12:22 -0400")
Zhihui Zhang <zzhsuny@gmail.com> writes:
> I wish Btrfs well, so I would venture an idea for this specific case
> mentioned by Edward Shishkin today.
>
> Everyone knows that B-tree has internal and leaf nodes. Can we make
> the root as the leaf? In other words, if you
> create a 2K file, the B-tree will have only one node, which is both
> the root and the leaf. Of course, you need some flag to
> say this is a "degenerated" form of B-tree. Please cc me if you want
> my response.
You need to copy linux-btrfs to reach btrfs developers.
Ccs added
The problem with your idea is that on btrfs there's only
a single tree for the whole fs (or whole snapshot rather)
So it would only work for a single file because there's
only a single root.
-Andi
--
ak@linux.intel.com -- Speaking for myself only.
next prev parent reply other threads:[~2010-06-19 8:51 UTC|newest]
Thread overview: 3+ messages / expand[flat|nested] mbox.gz Atom feed top
2010-06-18 18:12 Zhihui Zhang
2010-06-19 8:51 ` Andi Kleen [this message]
2010-06-19 20:20 ` Zhihui Zhang
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