From 905b0dda06a064db08b8a814e968786ff3c4cc19 Mon Sep 17 00:00:00 2001
From: Miao Xie <miaox@cn.fujitsu.com>
Date: Mon, 26 Nov 2012 08:50:11 +0000
Subject: [PATCH] Btrfs: get write access for qgroup operations

We need get write access for qgroup operations, or we will modify the R/O fs.

Signed-off-by: Miao Xie <miaox@cn.fujitsu.com>
Signed-off-by: Chris Mason <chris.mason@fusionio.com>
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Reading git-format-patch failed