From: "Jakub Klinkovský" <j.l.k@gmx.com>
To: linux-btrfs@vger.kernel.org
Subject: btrfs send/receive does not preserve +C (nocow) attribute
Date: Wed, 6 Aug 2014 17:56:52 +0200 [thread overview]
Message-ID: <20140806155652.GA569@asusntb.lan> (raw)
[-- Attachment #1: Type: text/plain, Size: 1002 bytes --]
I've been testing btrfs send/receive, and to my surprise, the +C (nocow)
attribute I have set on directory for virtual machines images is not preserved.
Is this expected? Having found no information about this issue, I'm asking here.
Info:
$ uname -a
Linux asusntb 3.15.8-1-ARCH #1 SMP PREEMPT Fri Aug 1 08:51:42 CEST 2014 x86_64 GNU/Linux
$ btrfs --version
Btrfs v3.14.2-dirty
Both source and target btrfs filesystems are mounted with the same mount
options:
rw,nosuid,nodev,noatime,compress=lzo,space_cache,autodefrag,commit=60
$ lsattr ~/virtual_machines/
---------------C virtual_machines/archlinux-btrfs.raw
---------------C virtual_machines/archlinux.raw
---------------C virtual_machines/winxp.raw
$ lsattr /media/backup/virtual_machines/2014-08-06/
---------------- /media/backup/virtual_machines/2014-08-06/archlinux-btrfs.raw
---------------- /media/backup/virtual_machines/2014-08-06/archlinux.raw
---------------- /media/backup/virtual_machines/2014-08-06/winxp.raw
Regards,
--
jlk
[-- Attachment #2: Type: application/pgp-signature, Size: 819 bytes --]
next reply other threads:[~2014-08-06 15:57 UTC|newest]
Thread overview: 2+ messages / expand[flat|nested] mbox.gz Atom feed top
2014-08-06 15:56 Jakub Klinkovský [this message]
2014-08-06 16:22 ` btrfs send/receive does not preserve +C (nocow) attribute Juan Orti Alcaine
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=20140806155652.GA569@asusntb.lan \
--to=j.l.k@gmx.com \
--cc=linux-btrfs@vger.kernel.org \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is an external index of several public inboxes,
see mirroring instructions on how to clone and mirror
all data and code used by this external index.