From fc0e4a314e361af3b13d9320e92c64118f9a3e61 Mon Sep 17 00:00:00 2001
From: Miao Xie <miaox@cn.fujitsu.com>
Date: Thu, 24 Mar 2011 11:41:21 +0000
Subject: [PATCH] btrfs: use GFP_NOFS instead of GFP_KERNEL

In the filesystem context, we must allocate memory by GFP_NOFS,
or we may start another filesystem operation and make kswap thread hang up.

Signed-off-by: Miao Xie <miaox@cn.fujitsu.com>
Signed-off-by: Chris Mason <chris.mason@oracle.com>
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