From: Roman Mamedov <rm@romanrm.net>
To: Eric Sandeen <sandeen@redhat.com>
Cc: Anand Jain <Anand.Jain@oracle.com>, linux-btrfs@vger.kernel.org
Subject: Re: [PATCH 1/2 v2] btrfs: label should not contain return char
Date: Thu, 22 May 2014 10:14:31 +0600 [thread overview]
Message-ID: <20140522101431.6b2a9ee2@natsu> (raw)
In-Reply-To: <537D5D6F.900@redhat.com>
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On Wed, 21 May 2014 21:14:07 -0500
Eric Sandeen <sandeen@redhat.com> wrote:
> >> (Random aside: why does btrfs support online fs relabeling, anyway?)
> >>
> >> -Eric
> >
> > Online you mean when mounted ?
>
> Yep - I'm just not sure who would ever want to do that.
>
> Aren't labels primarly used for mounting, during the mount process?
Well if you want to change the label of your root filesystem, how else would
you go about that? If Btrfs did not support this, then only while booted from a
rescue LiveCD? That's quite a bit more involved and not even always feasible
in case of remote machines with no IPMI or similar management.
Extfs supports online change of the volume label as well, albeit probably not
via a sysfs file, but with the tune2fs utility:
tune2fs -L <name> /dev/blockdevice
--
With respect,
Roman
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next prev parent reply other threads:[~2014-05-22 4:14 UTC|newest]
Thread overview: 30+ messages / expand[flat|nested] mbox.gz Atom feed top
2014-05-19 17:04 [PATCH 1/2] btrfs: label should not contain return char Anand Jain
2014-05-19 17:04 ` [PATCH 2/2] btrfs: usage error should not be logged into system log Anand Jain
2014-05-20 6:38 ` [PATCH 2/2 v2] " Anand Jain
2014-05-20 16:36 ` David Sterba
2014-05-19 17:16 ` [PATCH 1/2] btrfs: label should not contain return char Eric Sandeen
2014-05-20 6:40 ` Anand Jain
2014-05-19 17:19 ` Roman Mamedov
2014-05-20 6:42 ` Anand Jain
2014-05-20 6:36 ` [PATCH 1/2 v2] " Anand Jain
2014-05-20 16:32 ` Eric Sandeen
2014-05-22 2:05 ` Anand Jain
2014-05-22 2:14 ` Eric Sandeen
2014-05-22 4:14 ` Roman Mamedov [this message]
2014-05-22 16:06 ` Eric Sandeen
2014-05-20 16:33 ` David Sterba
2014-05-20 16:41 ` Eric Sandeen
2014-05-22 10:47 ` Anand Jain
2014-05-22 10:41 ` [PATCH 1/2 v3] " Anand Jain
2014-05-22 10:41 ` [PATCH 2/2 v3] btrfs: usage error should not be logged into system log Anand Jain
2014-05-22 11:21 ` Koen Kooi
2014-05-23 2:41 ` Anand Jain
2014-05-22 11:41 ` [PATCH 1/2 v3] btrfs: label should not contain return char David Sterba
2014-05-23 2:50 ` [PATCH 1/2 v4] " Anand Jain
2014-05-23 2:50 ` [PATCH 2/2 v4] btrfs: usage error should not be logged into system log Anand Jain
2014-05-26 17:41 ` [PATCH 1/2 v4] btrfs: label should not contain return char David Sterba
2014-07-01 5:22 ` [PATCH v5] " Satoru Takeuchi
2014-07-01 6:46 ` Wang Shilong
2014-07-01 8:00 ` [PATCH v6] " Satoru Takeuchi
2014-07-01 8:29 ` Wang Shilong
2014-07-01 15:05 ` David Sterba
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