From: Stefan Behrens <sbehrens@giantdisaster.de>
Date: Tue, 6 Nov 2012 14:08:53 +0000 (+0100)
Subject: Btrfs: add support for device replace ioctls
X-Git-Tag: v3.8-rc1~71^2~55
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=3f6bcfbd4149875662773eb40a62294cddf215d4;p=pandora-kernel.git

Btrfs: add support for device replace ioctls

This is the commit that allows to start the device replace
procedure.

An ioctl() interface is added that supports starting and
canceling the device replace procedure, and to retrieve
the status and progress.

Signed-off-by: Stefan Behrens <sbehrens@giantdisaster.de>
Signed-off-by: Chris Mason <chris.mason@fusionio.com>
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