From 69611ac810af8e88eeb5ebd851589a0e8cc90860 Mon Sep 17 00:00:00 2001
From: Miao Xie <miaox@cn.fujitsu.com>
Date: Thu, 3 Jul 2014 18:22:12 +0800
Subject: [PATCH] Btrfs: fix unzeroed members in fs_devices when creating a fs
 from seed fs

We forgot to zero some members in fs_devices when we create new fs_devices
from the one of the seed fs. It would cause the problem that we got wrong
chunk profile when allocating chunks. Fix it.

Signed-off-by: Miao Xie <miaox@cn.fujitsu.com>
Signed-off-by: Chris Mason <clm@fb.com>
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