From: liubo <liubo2009@cn.fujitsu.com>
Date: Mon, 21 Mar 2011 08:54:27 +0000 (+0000)
Subject: Btrfs: add datacow flag in inode flag
X-Git-Tag: v2.6.39-rc1~19^2~16
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=32471f6e1983922473573da62cbee58699574aa4;p=pandora-kernel.git

Btrfs: add datacow flag in inode flag

For datacow control, the corresponding inode flags are needed.
This is for btrfs use.

v1->v2:
Change FS_COW_FL to another bit due to conflict with the upstream e2fsprogs

Signed-off-by: Liu Bo <liubo2009@cn.fujitsu.com>
Signed-off-by: Chris Mason <chris.mason@oracle.com>
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