From: Miao Xie <miaox@cn.fujitsu.com>
Date: Thu, 24 Jul 2014 03:37:07 +0000 (+0800)
Subject: Btrfs: don't write any data into a readonly device when scrub
X-Git-Tag: omap-fixes-against-v3.17-rc3~41^2~13
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=5d68da3b8ee6eb2257aa4b8d885581782278ae93;p=pandora-kernel.git

Btrfs: don't write any data into a readonly device when scrub

We should not write data into a readonly device especially seed device when
doing scrub, skip those devices.

Signed-off-by: Miao Xie <miaox@cn.fujitsu.com>
Reviewed-by: David Sterba <dsterba@suse.cz>
Signed-off-by: Chris Mason <clm@fb.com>
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