From: Li Zefan <lizf@cn.fujitsu.com>
Date: Mon, 25 Oct 2010 07:12:50 +0000 (+0800)
Subject: btrfs: Allow to specify compress method when defrag
X-Git-Tag: v2.6.38-rc1~14^2~15^2~1
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=1a419d85a76853d7d04e9b6280a80e96770bf3e3;p=pandora-kernel.git

btrfs: Allow to specify compress method when defrag

Update defrag ioctl, so one can choose lzo or zlib when turning
on compression in defrag operation.

Changelog:

v1 -> v2
- Add incompability flag.
- Fix to check invalid compress type.

Signed-off-by: Li Zefan <lizf@cn.fujitsu.com>
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