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From: Theodore Ts'o <tytso@mit.edu>
To: Eric Sandeen <sandeen@redhat.com>
Cc: ext4 development <linux-ext4@vger.kernel.org>,
	David Shaw <dshaw@jabberwocky.com>,
	Harald Reindl <h.reindl@thelounge.net>
Subject: Re: [PATCH] e2fsprogs: allow 0-length xattr values in e2fsck
Date: Thu, 25 Apr 2013 00:20:01 -0400	[thread overview]
Message-ID: <20130425042001.GA4685@thunk.org> (raw)
In-Reply-To: <5161BE0A.5070003@redhat.com>

On Sun, Apr 07, 2013 at 01:42:18PM -0500, Eric Sandeen wrote:
> e2fsck thinks that this:
> 
> # touch mnt/testfile1
> # setfattr -n "user.test" mnt/testfile1
> 
> results in a filesystem with corruption:
> 
> Pass 1: Checking inodes, blocks, and sizes
> Extended attribute in inode 12 has a value size (0) which is invalid
> Clear? yes
> 
> but as far as I can tell, there is absolutely nothing wrong with
> a 0-length value on an extended attribute.  Just remove the check.
> 
> Reported-by: David Shaw <dshaw@jabberwocky.com>
> Reported-by: Harald Reindl <h.reindl@thelounge.net>
> Addresses-Red-Hat-Bugzilla: #557959
> Signed-off-by: Eric Sandeen <sandeen@redhat.com>

Thanks, applied.

It turns out that 0-length values applied for xattrs stored in
external xattr blocks.  0-length xattrs were only only getting
prohibited for in-inode xattrs.

						- Ted

      parent reply	other threads:[~2013-04-25  4:20 UTC|newest]

Thread overview: 3+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2013-04-07 18:42 [PATCH] e2fsprogs: allow 0-length xattr values in e2fsck Eric Sandeen
2013-04-12 17:02 ` Eric Sandeen
2013-04-25  4:20 ` Theodore Ts'o [this message]

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