linux-ext4 - Re: [PATCH 17/24] e2fsck: reserve blocks for root/lost+found directory repair

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Message-ID: <20140725121253.GH1865@thunk.org>
Date:	Fri, 25 Jul 2014 08:12:53 -0400
From:	Theodore Ts'o <tytso@....edu>
To:	"Darrick J. Wong" <darrick.wong@...cle.com>
Cc:	linux-ext4@...r.kernel.org
Subject: Re: [PATCH 17/24] e2fsck: reserve blocks for root/lost+found
 directory repair

On Fri, Jul 18, 2014 at 03:54:22PM -0700, Darrick J. Wong wrote:
> If we think we're going to need to repair either the root directory or
> the lost+found directory, reserve a block at the end of pass 1 to
> reduce the likelihood of an e2fsck abort while reconstructing
> root/lost+found during pass 3.

Can you say more about when this situation arises?  The only thing I
can think of is if there are a large number of blocks that need to be
cloned during passes 1b/c/d?

						- Ted
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