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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>
Subject: Re: [PATCH, RFC] ext4: don't clear orphan list on ro mount with errors
Date: Wed, 26 Sep 2012 23:32:11 -0400	[thread overview]
Message-ID: <20120927033211.GE15707@thunk.org> (raw)
In-Reply-To: <503BCA24.7050100@redhat.com>

On Mon, Aug 27, 2012 at 02:27:32PM -0500, Eric Sandeen wrote:
> When we have a filesystem with an orphan inode list *and* in error
> state, things behave differently if:
> 
> 1) e2fsck -p is done prior to mount: e2fsck fixes things and exits
>    happily (barring other significant problems)
> 
> vs.
> 
> 2) mount is done first, then e2fsck -p: due to the orphan inode
>    list removal, more errors are found and e2fsck exits with
>    UNEXPECTED INCONSISTENCY.
> 
> The 2nd case above, on the root filesystem, has the tendency to halt
> the boot process, which is unfortunate.
> 
> The situation can be improved by not clearing the orphan
> inode list when the fs is mounted readonly.
> 
> Signed-off-by: Eric Sandeen <sandeen@redhat.com>

I've applied this commit since I agree with Jan's observation that if
the file system is mounted read-only, we should try to minimize
changes to it if it contains errors.  I have modified the commit
description though:

ext4: don't clear orphan list on ro mount with errors

From: Eric Sandeen <sandeen@redhat.com>

If the file system contains errors and it is being mounted read-only,
don't clear the orphan list.  We should minimize changes to the file
system if it is mounted read-only.

Signed-off-by: Eric Sandeen <sandeen@redhat.com>
Signed-off-by: "Theodore Ts'o" <tytso@mit.edu>

						- Ted

  parent reply	other threads:[~2012-09-27  3:32 UTC|newest]

Thread overview: 11+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2012-08-27 19:12 Why clear the orphan list when mounting a fs with errors? Eric Sandeen
2012-08-27 19:27 ` [PATCH, RFC] ext4: don't clear orphan list on ro mount with errors Eric Sandeen
2012-08-27 23:31   ` Andreas Dilger
2012-08-27 23:35     ` Eric Sandeen
2012-09-27  3:32   ` Theodore Ts'o [this message]
2012-09-27  4:32     ` Eric Sandeen
2012-08-27 19:30 ` [PATCH, RFC] ext3: " Eric Sandeen
2012-08-28  8:02   ` Jan Kara
2012-09-04 18:51     ` Eric Sandeen
2012-09-04 21:27       ` Jan Kara
2012-09-04 19:33 ` Why clear the orphan list when mounting a fs with errors? Eric Sandeen

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