From: Ilya Dryomov <idryomov@gmail.com>
Date: Thu, 10 Oct 2013 17:40:21 +0000 (+0300)
Subject: Btrfs: disallow 'btrfs {balance,replace} cancel' on ro mounts
X-Git-Tag: v3.13-rc1~85^2~50
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=e649e587cbc66287b2a4bff8b2113ad679a2b8d8;p=pandora-kernel.git

Btrfs: disallow 'btrfs {balance,replace} cancel' on ro mounts

For both balance and replace, cancelling involves changing the on-disk
state and committing a transaction, which is not a good thing to do on
read-only filesystems.

Cc: Stefan Behrens <sbehrens@giantdisaster.de>
Signed-off-by: Ilya Dryomov <idryomov@gmail.com>
Signed-off-by: Josef Bacik <jbacik@fusionio.com>
Signed-off-by: Chris Mason <chris.mason@fusionio.com>
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