From: Gui Hecheng <guihc.fnst@cn.fujitsu.com>
Date: Thu, 5 Jun 2014 02:02:51 +0000 (+0800)
Subject: btrfs: replace EINVAL with EOPNOTSUPP for dev_replace raid56
X-Git-Tag: omap-for-v3.16/fixes-against-rc1~54^2~8
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=c81d57679ee4b87a5b50e9afe4e5d1866d08b9ad;p=pandora-kernel.git

btrfs: replace EINVAL with EOPNOTSUPP for dev_replace raid56

To return EOPNOTSUPP is more user friendly than to return EINVAL,
and then user-space tool will show that the dev_replace operation
for raid56 is not currently supported rather than showing that
there is an invalid argument.

Signed-off-by: Gui Hecheng <guihc.fnst@cn.fujitsu.com>
Signed-off-by: Chris Mason <clm@fb.com>
---

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