From: Anand Jain <Anand.Jain@oracle.com>
Date: Tue, 3 Jun 2014 03:36:03 +0000 (+0800)
Subject: btrfs: create sprout should rename fsid on the sysfs as well
X-Git-Tag: omap-for-v3.17/soc-cleanup~12^2~15
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=b2373f255cacdc1ea4da25e75a5a78949ffd9d66;p=pandora-kernel.git

btrfs: create sprout should rename fsid on the sysfs as well

Creating sprout will change the fsid of the mounted root.
do the same on the sysfs as well.

reproducer:
 mount /dev/sdb /btrfs (seed disk)
 btrfs dev add /dev/sdc /btrfs
 mount -o rw,remount /btrfs
 btrfs dev del /dev/sdb /btrfs
 mount /dev/sdb /btrfs

Error:
kobject_add_internal failed for fe350492-dc28-4051-a601-e017b17e6145 with -EEXIST, don't try to register things with the same name in the same directory.

Signed-off-by: Anand Jain <anand.jain@oracle.com>
Reviewed-by: David Sterba <dsterba@suse.cz>
Signed-off-by: Chris Mason <clm@fb.com>
---

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